Abrégé

Disclosed in the present invention is a high-voltage vacuum relay. An upper sleeve is arranged at an upper end of a vacuum chamber, and a magnetic driving mechanism is arranged in the upper sleeve; a moving contact is arranged at a lower end portion of a sliding component in the magnetic driving mechanism that extends into the vacuum chamber in a sealed manner; and a static contact aligned with the moving contact is arranged in the vacuum chamber, and the static contact is connected to a terminal arranged on the surface of the vacuum chamber. In the present invention, the insulation performance is good, and there is no oxidation problem; an electric arc in a vacuum is easily diffused, thereby not easily causing the wear of a contact; the present invention also has the advantages of a high dielectric strength, a large rated bearing current, a large conversion current, a small contact resistance of the contact, stable operation, etc.; by means of the mutual cooperation of the structures, the problem of ablation of moving and static contacts caused by the electric arc is solved, and the problem of a traditional relay having a relatively low voltage resistance level is solved; and the present invention relates to a relay device which has a relatively small volume and is safe in terms of use, and the requirements of a high voltage level for a charging pile and a 5G base station are met.

Classes IPC  ?

• H01H 33/664 - ContactsMoyens d'extinction d'arcs, p. ex. anneaux de garde
• H01H 33/666 - Dispositions pour l'actionnement

Abrégé

The present invention relates to an electromagnetic repulsion mechanism having a redundancy design and a switch device. The electromagnetic repulsion mechanism comprises first and second electromagnetic repulsion units; the first and second electromagnetic repulsion units drive a switch device alternatively or simultaneously; the first electromagnetic repulsion unit comprises a first transmission rod, a first repulsion disk, and a first front-side repulsion coil; the second electromagnetic repulsion unit comprises a second transmission rod, a second repulsion disk, and a second front-side repulsion coil; the repulsion disks are fixed on the transmission rods; the front-side repulsion coils are provided at the front sides of the repulsion disks; the first electromagnetic repulsion unit is located behind the second repulsion disk; the first transmission rod is a hollow rod; the rear end of the second transmission rod is inserted into the first transmission rod; the rear ends of the first transmission rod and the second transmission rod are respectively provided with pushing portions used for pushing a movable end of a switch body of the switch device to enable the movable end of the switch body to act. According to the present invention, by embedding redundant electromagnetic driving units in the electromagnetic repulsion mechanism, the arrangement size is reduced while ensuring the reliability of the switch device.

Classes IPC  ?

• H01H 50/64 - Dispositions d'entraînement entre en élément mobile de circuit magnétique et un contact
• H01H 51/27 - Relais avec une armature à deux états magnétiques stables et actionné par changement d'un état à l'autre

Abrégé

The present invention relates to an opening/closing operation apparatus for multiple types of circuit breaker, and a fault detection method. The entire apparatus has a box structure and can output five control signals and five voltage signals, and therefore can control five circuit breakers at the same time. The apparatus is internally configured with a transformer, a rectifier, a high-power DC-DC converter, a PLC, an A/D analog-to-digital converter, five direct-current sensors and transmitters, five alternating-current sensors and transmitters, and various opening/closing relays. A panel comprises a liquid crystal touch screen, a circuit breaker control signal output terminal, a circuit breaker electric motor power source output terminal, a detection input terminal, an emergency stop button, an audible and visual alarm indicator, a manual opening/closing button, a voltmeter, an ammeter, a miniature circuit breaker, five groups of opening indicator lamps, five groups of closing indicator lamps, five groups of control signal indicator lamps, etc. Parameter setting, signal display, etc. can be implemented by means of the touch screen. By means of the apparatus, the operation test time is changed from daytime to all day, and the number of allocated operators is reduced.

Classes IPC  ?

• G01R 31/327 - Tests d'interrupteurs de circuit, d'interrupteurs ou de disjoncteurs

Abrégé

A wall bushing, comprising a wall-through tube (2) fitting to a wall body, with an outdoor tube (3) and an indoor tube (4) abutting at two ends of the wall-through tube (2), wherein a bushing tube is provided with an end cover (5) on two ends thereof so as to seal an inner cavity of the bushing tube; a conductor (1) is located in the bushing tube; two middle shielding tubes (6) are provided, and are arranged at two ends of the wall-through tube (2) coaxially with the bushing tube and overhanging towards the outdoor tube (3) and the indoor tube (4) on the corresponding sides; and the conductor (1) passes through the middle shielding tubes (6) and has both ends thereof eccentrically arranged and located on an upper side of the axis of the bushing tube, such that the conductor (1), after flexural deformation, is located at a certain position in the middle shielding tubes (6) and coaxial with the corresponding middle shielding tube (6). When the conductor (1) is subjected to flexural deformation, the middle of the conductor (1) sags such that the portion thereof located at a certain position in the middle shielding tube (6) is coaxial with the corresponding middle shielding tube (5) so as to avoid the occurrence of discharge. In addition, there is no need to provide a supporting insulator in the bushing, which prevents the occurrence of flashover, so as to ensure that the wall bushing can run stably for a long time.

Classes IPC  ?

• H02G 3/22 - Installations de câbles ou de lignes à travers les murs, les sols ou les plafonds, p. ex. dans les immeubles
• H02G 15/00 - Accessoires de câbles
• H01B 17/58 - Tuyaux, manchons, perles isolantes ou bobines au travers desquels passe le conducteur

Abrégé

The present invention relates to a static contact of a grounding switch, and a straight-swing plug-in type grounding switch. The static contact of a grounding switch comprises: an upper cylinder part provided with static contact fingers therein; and a lower guide housing fixed at the lower end of the upper cylinder part, wherein one end of a guide channel is an open end, and the other end thereof is a closed end; and an elastic buffering member is arranged on the closed end in a protruding manner, and the elastic buffering member is arranged towards the guide channel, and is used for being in elastic press-fit with a moving contact that swings into the guide channel, thereby buffering and decelerating the moving contact. When the moving contact swings into the guide channel and moves to the end of the guide channel, the moving contact can be in elastic press-fit with the elastic buffering member, the elastic buffering member buffers and decelerates the moving contact, and stops same, and then, the moving contact can readily move upwards in a linear manner and be plugged in the upper cylinder part, so as to be conductively connected to the static contact fingers provided in the upper cylinder part. The elastic buffering member facing the guide channel is used for buffering the moving contact, and an elastic buffering member with a proper elastic coefficient can be easily selected and can also be easily mounted.

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails
• H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs
• H01H 1/50 - Moyens pour accroître la pression de contact, empêcher la vibration des contacts, maintenir ensemble les contacts après l'entrée en contact, ou pour ramener les contacts à la position d'ouverture

Abrégé

The present invention relates to a mechanical linkage transmission system for a three-phase circuit breaker and the three-phase circuit breaker. The mechanical linkage transmission system comprises: an assembling rack; and a three-phase synchronous transmission mechanism, which comprises three single-phase rotating shafts, wherein each single-phase rotating shaft is respectively provided with an output crank arm and a synchronous linkage crank arm, and two synchronous linkage crank arms of any two adjacent single-phase rotating shafts are in transmission connection by means of an interphase connecting rod. The mechanical linkage transmission system also comprises an operating mechanism, wherein the operating mechanism is provided with a power output shaft, the power output shaft drives a driving rotating shaft by means of an intermediate transmission mechanism to rotate, and the driving rotating shaft drives the other two single-phase rotating shafts by means of the interphase connecting rod to rotate, thereby achieving a three-phase synchronous action. By using the assembling rack, the operating mechanism and the three-phase synchronous transmission mechanism can be mounted on the assembling rack in advance so as to form a pre-assembled module and then the entire pre-assembled module is fixedly assembled with a mounting base plate at the rear end of the three-phase circuit breaker. The assembling process can be effectively simplified, the assembling efficiency is increased, and the modular design of the three-phase circuit breaker is facilitated.

Classes IPC  ?

• H01H 33/72 - Interrupteurs comportant des moyens séparés pour diriger, obtenir ou augmenter l'écoulement du fluide extincteur d'arc comportant des organes fixes pour diriger l'écoulement du fluide extincteur d'arc, p. ex. chambre d'arc
• H01H 33/46 - Mécanismes d'interverrouillage

Abrégé

A double-acting arc-extinguishing chamber transmission structure, comprising a double-acting linkage structure. The double-acting linkage structure comprises a T-shaped guide rail (1) which is fixed on a static support base (3) of a static end assembly and comprises an axial track and a perpendicular track. The axial track extends in the front-back direction. An active connecting rod (2) is provided on the axial track in a guided manner, is connected to a large nozzle (15) assembly of a movable end assembly and moves synchronously with the large nozzle (15) assembly. The perpendicular track extends perpendicularly to the axial track. A perpendicular sliding block (19) is provided on the perpendicular track in a guided manner. The double-acting linkage structure further comprises a middle connecting rod (20) and a driven connecting rod (18). Two ends of the middle connecting rod (20) are respectively hinged to the driving connecting rod (2) and the driven connecting rod (18), and a part between the two ends is hinged to the perpendicular sliding block (19). One end of the driven connecting rod (18) which is away from the middle connecting rod (20) is hinged to a static arc contact (17). The structure can solve the problems of current double-acting arc-extinguishing chamber transmission structures having connecting rod transmission that connecting rods bear large lateral force and are prone to deformation, parts are difficult and costly to process and manufacture, and the mechanical reliability is low.

Classes IPC  ?

• H01H 33/46 - Mécanismes d'interverrouillage
• H01H 33/42 - Mécanismes moteurs
• H01H 33/04 - Moyens pour éteindre ou empêcher des arcs entre organes traversés par le courant

Abrégé

The present invention relates to a particle capture apparatus and a cylinder structure of a GIS or a GIL. The particle capture apparatus comprises: a trap cover plate; a lower grating plate, which is fixedly installed on the trap cover plate, so that the lower grating plate matches the trap cover plate to form a lower-layer capture trap; and an upper grating plate, which is relatively fixedly assembled with the lower grating plate, wherein the upper grating plate is parallel to the lower grating plate, and the upper grating plate is located above the lower grating plate, so that the upper grating plate and the lower grating plate form an upper-layer capture trap. An upper-layer capture trap and a lower-layer capture trap are formed by using two grating plates and a trap cover plate. Under the actions of gravity, an electric field and an airflow, particles may pass through the upper-layer capture trap to enter the lower-layer capture trap, and even if a small amount of particles jump out of the lower-layer capture trap, the particles may also fall into the upper-layer capture trap and cannot directly return to a cylinder, thereby effectively improving the particle capture efficiency of the particle capture apparatus.

Classes IPC  ?

• B03C 3/38 - Postes de chargement ou d'ionisation des particules, p. ex. utilisant des décharges électriques, des radiations radioactives ou des flammes
• B03C 3/34 - Parties constitutives ou accessoires, ou leur fonctionnement
• B03C 3/017 - Combinaison de la séparation par effet électrostatique avec d'autres procédés, non prévue ailleurs

Abrégé

Disclosed is a rotatable bus support structure for use in a switch cabinet, comprising: a first support body, a first side in the axial direction of the support body being provided with a bolt connected to a first side in the axial direction of an insulator, a second side in the axial direction of the support body being provided with a U-shaped engaging groove, and the groove wall of the U-shaped engaging groove being stepped; an engaging bolt of which the head part is plugged into the U-shaped engaging groove, the head part of the engaging bolt being axially limited by the stepped groove wall of the U-shaped engaging groove, a threaded section of the engaging bolt being connected to a first side in the axial direction of a connecting conductor, and a second side in the axial direction of the connecting conductor being connected to a bus; and a stopping block plugged into the U-shaped groove, the stopping block being fixedly connected to the support body and being used for limiting a radial movement of the engaging bolt. The present invention implements an adjustment to the angle of rotation of the bus, thus implementing the connections between the bus and other components in the switch cabinet; moreover, because the bus is rotatable, the length of the bus can be reduced, thus reducing the manufacturing costs for the switch cabinet.

Classes IPC  ?

• H02G 5/00 - Installations de barres omnibus

Abrégé

A hydraulic control valve, a hydraulic operating mechanism using the hydraulic control valve, and a circuit breaker. The hydraulic control valve comprises a valve body (1), which is internally provided with a valve cavity (3), and a constant high-pressure oil port (4), a control oil port (5) and a constant low-pressure oil port (6) which communicate with the valve cavity (3) are sequentially disposed on the valve body (1) along a linear direction. The hydraulic control valve is further provided with a valve core (9); a straight section of equal diameter is provided on an inner wall of the valve cavity (3) between the constant high-pressure oil port (4) and the constant low-pressure oil port (6); a sealing ring (10) is provided on at least one of the outer peripheral surface of the valve core (9) and on an inner wall of the the straight section of equal diameter, so as to achieve sliding sealing cooperation between the valve core (9) and the straight section of equal diameter. A first limit position and a second limit position are provided on a reciprocating sliding stroke of the valve core (9); when located in the first limit position, the valve core (9) is located between the constant high-pressure oil port (4) and the control oil port (5), and the constant low-pressure oil port (6) communicates with the control oil port (5); and when located in the second limit position, the valve core (9) is located between the constant low-pressure oil port (6) and the control oil port (5), and the constant high-pressure oil port (4) communicates with the control oil port (5). Requirements for the position of the valve core (9) after moving into position are not too strict, and a certain position deviation is permitted, thus reducing the difficulty of processing and assembling.

Classes IPC  ?

• F16K 11/065 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement
• F15B 13/02 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs
• H01H 71/24 - Mécanismes électromagnétiques

Abrégé

The present invention provides an automatic cleaning device for a GIS conductor. The automatic cleaning device comprises a conductor supporting and rotating mechanism and a spray head displacement mechanism, wherein the conductor supporting and rotating mechanism comprises: a supporting frame; a supporting wheel set mounted at the top of the supporting frame and comprising a front supporting wheel and a rear supporting wheel, wherein a rotation axis of the front supporting wheel and a rotation axis of the rear supporting wheel extend laterally, and one of the front supporting wheel and the rear supporting wheel is a driving wheel; and a rotary driving device in transmission connection to the driving wheel. The spray head displacement mechanism comprises: a spray head used for moving along a conductor and spraying water for cleaning; left and right stand columns; a guide rail fixed at top ends of the two stand columns; a spray head fixing device used for fixing the spray head and movably mounted on the guide rail in a lateral direction in a guiding manner; and a displacement driving device in transmission connection with the spray head fixing device, so as to drive the spray head fixing device to move laterally along the guide rail. According to the present invention, automatic cleaning can be realized, no manual cleaning is needed, a cleaning effect is good, and the problems of poor manual cleaning effect, poor quality stability, a high labor intensity and low working efficiency are solved.

Classes IPC  ?

• H02B 3/00 - Appareillage spécialement adapté pour la fabrication, l'assemblage ou l'entretien de tableaux ou d'appareillage de commutation
• B08B 3/02 - Nettoyage par la force de jets ou de pulvérisations

Abrégé

A static end assembly (80) and a disconnecting and earthing switch. The static end assembly (80) comprises: a static end support (81), a disconnecting static contact or earthing static contact (20) being mounted on the static end support (81), and the static end support (81) being provided with a fixed structure used for being fixedly connected to a cylinder body (10); a shielding cover (82) that is fixed on the static end support (81) and used for shielding the disconnecting static contact or earthing static contact (20); and fast-earthing static contacts (85, 86) that are mounted on the static end support (81), the shielding cover (82) being provided with an exposing hole (823) used for exposing the fast-earthing static contacts (85, 86).

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails
• H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs

Abrégé

A method and apparatus for measuring the movement speed of a contact of a vacuum switch. The method comprises: firstly, acquiring arc images of a vacuum switch during a switch-off process; then, performing edge enhancement processing on each frame of acquired arc image by using a Laplace edge detection operator; next, performing edge extraction, and determining the positions of upper and lower edges of an arc in each frame of arc image, so as to determine the positions of moving and fixed contacts in each frame of arc image; and determining the movement speed of a contact of the vacuum switch according to a time interval between two frames of arc images. Edge enhancement processing is performed on each frame of acquired arc image by using a Laplace edge detection operator, such that the light and shade contrast between upper and lower edges and a background image of the arc image is enhanced, thereby avoiding the processing analysis of the whole frame of arc image and reducing the amount of calculation. The analysis of the influence of a movement characteristic of an operating mechanism on an arc shape is facilitated, and technical support is provided for researching an arc regulation theory.

Classes IPC  ?

• G01P 3/38 - Dispositifs caractérisés par l'emploi de moyens optiques, p. ex. en utilisant la lumière infrarouge, visible ou ultraviolette en utilisant des moyens photographiques
• G01R 31/327 - Tests d'interrupteurs de circuit, d'interrupteurs ou de disjoncteurs
• H01H 33/66 - Interrupteurs dans lesquels la coupure s'effectue dans le vide

Abrégé

The present invention relates to a spring-operated mechanism, a closing latch system, and a circuit breaker. The spring-operated mechanism comprises a frame, on which an output shaft, a sector plate rotating shaft, and an opening half shaft which are parallel to each other are disposed; a transmission crack arm is disposed on the output shaft, and the transmission crank arm is provided with a holding arm; a notch is formed on the opening half shaft, and the bottom of the notch is a flat surface; a sector plate is disposed on the sector plate rotating shaft, a sector plate return spring is disposed between the sector plate and the frame, the sector plate is provided with a holding protrusion and a half shaft matching portion, the half shaft matching portion has a matching surface, and the matching surface is used for matching with the flat surface of the notch; the matching surface is an arc-shaped surface, and the center line corresponding to the arc-shaped surface coincides with the axis of the sector plate rotating shaft. In a forward rotating process of the half shaft matching portion, the opening half shaft will not be hit, so that the opening half shaft can rotate forward immediately after the half shaft matching portion is disengaged from the opening half shaft, so as to ensure to stop the half shaft matching portion that is reversely rotated back.

Classes IPC  ?

• H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement

Abrégé

The present invention relates to the technical field of corrugated pipes, and specifically relates to a corrugated pipe assembly, a vacuum interrupter, and a vacuum circuit breaker. The corrugated pipe assembly comprises: a corrugated pipe body, wherein corrugations for fixation are respectively provided at two axial ends of the corrugated pipe body; and flanges, which are arranged at two axial ends of the corrugated pipe body, wherein an inner annular groove is formed on the inner circumferential surface of the flanges, the corrugations for fixation being embedded in the inner annular grooves, and two root parts of the corrugations for fixation are both fixed onto the flanges. The corrugations for fixation are embedded in the inner annular grooves of the flanges, and two root parts are both fixed onto the flanges, thereby achieving the effect of integrating the corrugations at end parts of the corrugated pipe body with the flanges, such that the force at end parts of the corrugated pipe body is borne jointly by the corrugations for fixation, the flanges, and the places of connection between the corrugations for fixation and the flanges. Compared to the prior art, stress conditions of the corrugations at the end parts of the corrugated pipe body are effectively improved, and the possibility of fatigue cracks in the corrugations at the end parts of the corrugated pipe can be effectively reduced.

Classes IPC  ?

• H01H 33/66 - Interrupteurs dans lesquels la coupure s'effectue dans le vide
• H01H 33/662 - Enveloppes ou écrans de protection

Abrégé

A particulate filter and a cylinder body structure for GIS/GIL. The particulate filter (104, 204) comprises: a trap cover plate (1, 21, 31, 41), a cover plate connecting structure being provided on the trap cover plate (1, 21, 31, 41), the trap cover plate (1, 21, 31, 41) being adapted to be detachably and fixedly connected to an opening of a cylinder wall of a cylinder body (101, 201) by means of the cover plate connecting structure; and a trap grid plate (2, 22, 32, 42), which is detachably connected to the trap cover plate (1, 21, 31, 41) so that an equipotential area (10) is formed between the trap grid plate (2, 22, 32, 42) and the trap cover plate (1, 21, 31, 41), grid holes (9) are distributed on the trap grid plate (2, 22, 32, 42), and the grid holes (9) allow metal particulates to pass through so that the metal particulates can enter the equipotential area (10). After the trap cover plate (1, 21, 31, 41) is fixedly connected to the corresponding cylinder body (101, 201), under the action of an alternating-current high voltage, the metal particulates in the cylinder body (101, 201) can move under the action of an electric field and finally pass through the grid holes (9) to enter the equipotential area (10), so that the metal particulates are not affected by the electric field, the metal particulates stop moving, and the metal particulates are captured. Moreover, the trap cover plate (1, 21, 31, 41) and the trap grid plate (2, 22, 32, 42) are both of plate-shaped structures, so that the structure of the particulate filter (104, 204) is simplified.

Classes IPC  ?

• H02G 5/06 - Installations fermées, p. ex. en coffrets métalliques
• H02B 13/035 - Appareillages de commutation à isolation gazeuse
• B08B 6/00 - Nettoyage par des moyens électrostatiques

Abrégé

Disclosed is a moving contact base body (5). The moving contact base body (5) is provided with two elongated holes (12, 13) arranged opposite each other, wherein the extending direction of the elongated holes (12, 13) is consistent with the length direction of the moving contact base body (5); at least one end of at least one elongated hole (12) is provided with a guide face; the guide face is used for guiding a contact finger (16) installed on a moving contact seat (4) to slide over such that the contact finger (16) can be smoothly compressed, and the guide face comprises a side guide face (20) connected to a side wall face (17) of the elongated hole (12) and an end guide face (19) connected to an end wall face (18) of the elongated hole. Therefore, when the moving contact base body (5) is guided to move relative to the moving contact seat (4) and the contact finger (16) passes through the end of the elongated hole (12), the guide face can guide the contact finger (16) to slide over the end of the elongated hole (12), the end guide face (19) and the side guide face (20) have a guide effect on the compression of the contact finger (16), and the smooth compression of the contact finger (16) can be realized. When the moving contact base body (5) is applied to a three-station isolation grounding switch, the reliability and stability of conductive contact of a moving contact and the moving contact seat (4) in the relative sliding process can be improved, and thus improving the working reliability of the three-station isolation grounding switch.

Classes IPC  ?

• H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs

Abrégé

Disclosed are a hydraulic operating mechanism and a control valve thereof. The control valve of the hydraulic operating mechanism comprises a high-pressure oil port, working oil ports and a low-pressure oil port, and the control valve further comprises a closing control valve unit, an opening control valve unit and driving members; each of the opening and closing control valve units comprises a valve body (11, 15), a valve element (24, 29) and the driving member; an oil inlet and an oil outlet are provided in the valve body (11, 15), an oil inlet channel (22, 27) and an oil outlet channel (21, 26) are further provided in the valve body, the oil inlet channel (22, 27) and the oil outlet channel (21, 26) are respectively in communication with the oil inlet and the oil outlet, and a valve port (33, 34) is provided between the oil inlet channel (22, 27) and the oil outlet channel (21, 26); the valve element (24, 29) is movably arranged in the valve body (11, 15) and is used for blocking and opening the valve port (33, 34); a valve element spring is arranged in the valve body (11, 15); the oil inlet of the closing control valve unit forms the high-pressure oil port, the oil outlet of the opening control valve unit forms the low-pressure oil port, and the oil inlets of the opening and closing control valve units form the working oil ports; and the driving member is used for driving the valve element (24, 29) to act so as to open the valve port (33, 34), the driving member is connected to a repulsion mechanism (5, 19), and the repulsion mechanism (5, 19) is used for driving the driving member to act.

Classes IPC  ?

• F15B 1/02 - Installations ou systèmes comprenant des accumulateurs
• F15B 11/08 - Systèmes de servomoteurs dépourvus d'asservissement avec un seul servomoteur
• F15B 13/04 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique
• F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
• F15B 15/20 - Autres parties constitutives

Abrégé

A hydraulic operating mechanism and a hydraulic control valve. The hydraulic operating mechanism comprises a working cylinder and the hydraulic control valve; the hydraulic control valve comprises a valve body, a valve core (4), and a driving rod (15); a left moving area (11) and a right moving area (12) are provided in the valve body; the driving rod (15) is disposed corresponding to the end surface of the valve core (4) and used for pushing and/or pulling, under the driving of a driving module (5), the valve core (4) to act; a left moving area channel (13) and a right moving area channel (14) are formed on the valve body and/or the valve core (4); if the effective end surface area of the valve core (4) exposed in a left valve core moving area (11) is A1, the effective end surface area of the valve core (4) exposed in a normal high pressure oil area (8) when the valve core (4) moves rightwards to a limit position is A2, the effective end surface area of the valve core (4) exposed in a working oil area (7) when the valve core (4) moves leftwards to a limit position is A3, and the effective end surface area of the valve core exposed in the right moving area (12) is A4, A1 is larger than A2, and A1 is smaller than A3 plus A4. The solution can solve the problems that hydraulic control valves of existing hydraulic operating mechanisms are inconvenient to install and maintain and have high costs.

Classes IPC  ?

• F15B 13/02 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs
• H01H 3/32 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts

Abrégé

A circuit breaker and a resistor break transmission structure thereof. The resistor break transmission mechanism of the circuit breaker comprises transmission crank arms (2, 10), a driving lever (6) and an intermediate transmission rod (5); the transmission crank arm (2, 10) is provided with a fixed hinge point (21), an input hinge point (24), a first output hinge point (23) and a second output hinge point (22); the driving lever (6) has a hinged end and a contact driving end; a resistor contact connecting rod (7) is hinged between the contact driving end and a resistor contact assembly which is provided in a guiding manner, and the intermediate transmission rod (5) has one end hinged to the second output hinge point (22), and the other end hinged between the hinged end and the contact driving end of the driving lever (6), so as to drive the driving lever (6) to swing in the form of a hard lever when the transmission crank arms (2, 10) swing. By means of the described form of a hard lever, the moving speed of the resistor contact connecting rod (7) can be increased, satisfying the speed requirement for a resistor moving contact of a resistor break, allowing for less parts of a driving mechanism required by a circuit breaker, thus having a simple structure, and low manufacturing costs.

Classes IPC  ?

• H01H 33/16 - Impédances connectées aux contacts
• H01H 33/42 - Mécanismes moteurs

Abrégé

An electro-hydraulic control valve for a hydraulic operating mechanism, and an electromagnetic pilot valve (600/700/800/900) and a pilot valve thereof. The pilot valve comprises: a valve body (607); a valve sleeve, one end of which is provided with a valve port; a valve ball (611); a ball holder, elastically abutting against the valve ball (611) so that the valve ball (611) blocks the valve port; an oil inlet passage (616); an oil discharge passage (617); a valve rod (609) mounted in the valve sleeve in a guiding and moving manner, and moving under an external force to push the valve ball (611) so that the oil inlet passage (616) is in communication with the oil discharge passage (617) through an inner hole of the valve sleeve, the valve rod (609) comprising a large diameter segment (6092) in the middle and a first small diameter segment (6093) and a second small diameter segment (6091) at two sides, the first small diameter segment (6093) being used for pushing the valve ball (611), the second small diameter segment (6091) being used for receiving the external force, and forming a second annular cavity (618) with the valve sleeve; and a bypass oil passage (615), one end of which is in communication with the oil inlet passage (616), and the other end of which is in communication with the second annular cavity (618). The bypass oil passage (615) enables a part of the oil liquid to enter the second annular cavity (618) to act on the large diameter segment (6092), so as to apply a pre-pushing force to the valve rod (609) to move towards the direction of the valve ball (611), reducing an external force value actually required when the valve rod (609) really acts, enabling the valve rod (609) to act more easily, and have a faster acting speed.

Classes IPC  ?

• F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
• F15B 13/043 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique actionnés par la pression du fluide avec clapets-pilotes commandés électriquement

Abrégé

A conductive box (5) and a scissor-type isolation switch. The conductive box comprises a housing and a transmission mechanism; the transmission mechanism comprises a power input shaft (11), a driving crank arm (15), connecting rods (18, 19), an eccentric shaft (24), and a locking nut (30); the power input shaft (11) is adapted to be transmittingly connected to a rotary insulator (4); the driving crank arm (15) is transmittingly connected to the power input shaft (11), and has the rotation axis collinear with the axis of the power input shaft (11); the eccentric shaft (24) is fixedly connected to the driving crank arm (15), comprises a threaded adjustment section (25) threadedly connected to the driving crank arm (15), and further comprises an eccentric section (26) and a threaded locking section (29); the axis of the eccentric section (26) is parallel to the axis of the threaded adjustment section (25); the threaded locking section (29) and the eccentric section (26) are respectively located on the two axial sides of the threaded adjustment section (25); the locking nut (30) is screwed on a shaft section, passing through a threaded through hole (33), of the threaded locking section (29); the connecting rod (18) is hinged to the eccentric section. The conductive box (5) is used for solving the problem in the prior art of the possibility of being unable to adjust the clamping force of a moving contact (8) to a stationary contact (9) in place because a fixed part and a hinged part of the driving crank arm (15) can only be adjusted in steps.

Classes IPC  ?

• H01H 3/32 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts
• H01H 3/46 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts utilisant une liaison par tige ou levier, p. ex. une genouillère
• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails

Abrégé

A deformable conductive connection mechanism (100), comprising: a contact guide seat (110) and two contact pieces (120, 130). The two contact pieces (120, 130) are mounted on two sides of the contact guide seat (110) by means of several limiting pins (140) and spring pins (150), and a vacuum switch movable contact (101) comes into contact with the contact pieces (120, 130) by means of the guiding by the contact guide seat (110); the contact pieces (120, 130) move in a limiting range of the limiting pins (140), and the spring pins (150) are used for adjusting pressing forces of the contact pieces (120, 130) on the vacuum switch movable contact (101); contact balls (160, 170) are mounted on inner sides of the contact pieces (120, 130), and the contact pieces (120, 130) are connected to a contact seat (190) by means of the contact balls (160, 170); and a bus (180) is connected to the contact seat (190). By means of the movable-joint-type connection of the contact balls (160, 170) and the contact seat (190) and the pressing forces of the spring pins (150), the vacuum switch movable contact (101) remains reliably connected to the contact pieces (120, 130) during the whole movement process, thereby realizing a conductive connection between the vacuum switch movable contact (101), which moves in a non-linear manner, and the bus (180), and meeting conductive connection requirements of a new rotary switch.

Classes IPC  ?

• H01H 33/664 - ContactsMoyens d'extinction d'arcs, p. ex. anneaux de garde
• H01H 1/58 - Connexions électriques avec ou entre contactsBornes

Abrégé

A circuit breaker (100) and a gas-insulated switchgear using the circuit breaker (100). In the circuit breaker (100), a shielding cover (3) is provided at an exposed electrically-conductive portion of an arc extinguishing chamber (2). The shielding cover (3) is fixed at a spindle supporting member (32), and is configured to be spaced apart from an insulation frame (1) and spaced apart from an arc extinguishing chamber housing (28). The shielding cover (3) is electrically connected to and encloses the exposed electrically-conductive portion of the arc extinguishing chamber (2). The shielding cover (3) has a smooth surface used to uniform an electric field. The shielding cover (3) is provided with a spindle hole (3) allowing an insulated spindle (4) to pass therethrough. The shielding cover (3) is further provided with wire bar holes. When the circuit breaker is in use, the shielding cover (3) can shield an internal electric field and make an external electric field uniform, thereby effectively mitigating an impact of a high electric potential at a tip portion of the exposed electrically-conductive portion.

Classes IPC  ?

• H01H 71/02 - BoîtiersEnveloppesSoclesGarnitures

Abrégé

A mobile substation, comprising: a high-voltage switch vehicle, comprising a lightening arrester (4), a voltage transformer (3), an HGIS (2), and a secondary equipment prefabricated cabin (1) sequentially arranged in the lengthwise direction of the high-voltage switch vehicle, both the lightening arrester (4) and the voltage transformer (3) being electrically-conductively connected to an incoming line side of the HGIS (2); a substation vehicle, comprising a neutral point kit apparatus (8), a transformer body (6), and a cooler (7) sequentially distributed in the lengthwise direction of the substation vehicle; an electric power distribution vehicle, comprising a switch cabinet prefabricated cabin (100), the switch cabinet prefabricated cabin (100) having arranged therein two incoming line cabinets (104) and a corresponding number of outgoing line cabinets (106). When the high-voltage switch vehicle, the substation vehicle, and the electric power distribution vehicle are used in tandem, the high-voltage side of the transformer body (6) is electrically-conductively connected to an outgoing line side of the HGIS (2), and the low-voltage side of the transformer body (6) is provided with two output terminals for being electrically-conductively connected in a one-to-one correspondence to the two incoming line cabinets (104). With the HGIS (2) and the transformer body (6) arranged separately, favored are the employment of the HGIS (2) and the transformer body (6) that are greater in size, and the implementation of two incomings and N outgoings on the electric power distribution vehicle, thus being further applicable in satisfying large-volume transmission requirements.

Classes IPC  ?

• H02B 5/00 - Postes de transformation d'extérieurPostes de transformation comportant des installations d'intérieur et d'extérieur

Abrégé

The present embodiment relates to the technical field of polymer materials, and specifically relates to a graft-modified aluminum oxide and a preparation method therefor, an epoxy composite material and an application thereof. The preparation method for graft-modified aluminum oxide of the present embodiment comprises the following steps: mixing silanized aluminum oxide, acrylate, and an initiator and then heating the mixture to 70-90°C to perform reaction so as to obtain graft-modified aluminum oxide. The graft-modified aluminum oxide prepared by the preparation method of the present embodiment, when being used as a filler for an epoxy composite material, can improve the mechanical and thermal properties of the epoxy composite material without reducing other properties, and can be used in the manufacture of insulating parts for high-voltage switch devices.

Classes IPC  ?

• C08F 292/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des substances inorganiques
• C08F 220/14 - Esters méthyliques
• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• C08L 51/10 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des substances inorganiques

Abrégé

Disclosed are a busbar unit (10, 20) and a pipeline busbar, relating to the technical field of GIL. The busbar unit (10, 20) comprises a busbar barrel body and a conducting rod (13); one end of the busbar barrel body is fixedly provided with a fixing insulator relative to the busbar barrel body; two axial ends of the fixing insulator are respectively provided with a fixing connection seat and a plug-in connection seat; the fixing connection seat allows the corresponding conducting rod (13) in the busbar unit (10, 20) or adjacent busbar units (10, 20) to be fixed and connected in a conductive manner; and the plug-in connection seat allows the corresponding conducting rod (13) in the busbar unit (10, 20) or adjacent busbar units (10, 20) to achieve plug-in cooperation and conductive connection. The fixing connection seat and the plug-in connection seat arranged on the two sides of the insulator in the busbar unit (10, 20) enable a conducting rod (13) in the prior art to be changed into a form with one end fixed and the other end telescopic, and the telescopic movement of only one end of the conducting rod (13) is limited, such that the whole unit can still adapt to the temperature change by means of self-telescopic deformation, and the problems that the plug-in length of the conducting rod (13) is too short and that the conducting rod may even fall off during heat expansion and cold contraction can be effectively solved.

Classes IPC  ?

• H02G 5/06 - Installations fermées, p. ex. en coffrets métalliques

Abrégé

An auxiliary busbar connecting device (40) and a busbar system, capable of solving the problem of high production costs for power station equipment. The auxiliary busbar connecting device (40) comprises a collecting connecting cylinder. The collecting connecting cylinder is provided thereon with branch busbar connecting ends for connecting respectively to phase branch busbars (10, 20, and 30) and an auxiliary busbar connecting end for connecting to an auxiliary busbar (50). The auxiliary busbar connecting device (40) also comprises an electrically-conductive rod (44) provided within the collecting connecting cylinder. The electrically-conductive rod (44) is used for connecting the branch busbar connecting ends and the auxiliary busbar connecting end. The auxiliary busbar connecting end and one of the branch busbar connecting ends are rigid connecting ends for directly connecting to a busbar cylinder of the corresponding branch busbar (10, 20, and 30) and that of the auxiliary busbar (50); the other two branch busbar connecting ends are soft connecting ends formed by corrugated pipes (41).

Classes IPC  ?

• H02G 5/06 - Installations fermées, p. ex. en coffrets métalliques

Abrégé

A circuit breaker and a mechanical linkage mechanism for the same. The mechanical linkage mechanism for a circuit breaker comprises: a support frame (4) fixed at an end of an arc extinguishing chamber assembly near a pull rod (3), wherein an operating mechanism installation position used to install an operating mechanism (7) is provided above or below the support frame (4); an input rod (9) hinged to a mechanism crank arm (8) of the operating mechanism (7); a transmission rotating shaft (6) assembled to the support frame (4); a receiving crank arm (10) installed on the transmission rotating shaft (6) and hinged to the input rod (9); and an output crank arm (11) installed on the transmission rotating shaft (6) and connected to the pull rod (3) of a corresponding arc extinguishing chamber via a connection rod (5). After assembly of the mechanical linkage mechanism for a circuit breaker, the operating mechanism (7), and the arc extinguishing chamber assembly is completed, the support frame (4) is fixed at the end of the arc extinguishing chamber assembly near the pull rod (3), and the operating mechanism (7) is located above or below the support frame (4). Compared with the prior art, a transmission span of the mechanical linkage mechanism for a circuit breaker is significantly reduced, thereby reducing the space occupied by the mechanical linkage mechanism for a circuit breaker.

Classes IPC  ?

• H01H 33/52 - Mécanismes d'interverrouillage pour interverrouiller plusieurs interrupteurs
• H01H 33/666 - Dispositions pour l'actionnement
• H01H 33/42 - Mécanismes moteurs

Abrégé

Disclosed is a switching device, comprising: a transmission shaft (1). The transmission shaft (1) is provided with a crank arm (2), the crank arm (2) is hinged to a connection head (3), the connection head (3) is connected to an insulation pull rod (7), the crank arm (2) is provided with a forward limit position and a reverse limit position, the connection head (3) is provided with a forward stop part which is in a jacking stop fit with the transmission shaft (1) when the crank arm (2) is located at the forward limit position, the connection head (3) is further provided with a reverse stop part which is in a jacking stop fit with the transmission shaft (1) when the crank arm (2) is located at the reverse limit position, and at least one of the forward stop part and the reverse stop part is of a concave structure (312). According to the switching device, the crank arm (2) can be limited at the forward limit position and the reverse limit position without the need to arrange additional parts in the switching device, such that while avoiding the potential safety hazard of the switching device due to a rotation angle of the crank arm (2) being greater than a set value, the machining procedure of the switching device is simple, and the size of a crank arm box is reduced.

Classes IPC  ?

• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
• H01H 3/50 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts avec moyens d'indication ou de localisation, p. ex. indication par bille et ressort
• H01H 3/32 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts

Abrégé

A fault indicator device and system, and a power distribution network system. The fault indicator device (M) comprises a fault indicator body and further comprises a traveling wave ranging module, wherein the traveling wave ranging module comprises a collection unit and a processing unit; the collection unit collects fault data when a fault occurs in a circuit and outputs the fault data to the processing unit; the processing unit extracts a fault traveling wave signal according to the received fault data, and then processes the fault traveling wave signal to obtain a first time; and the processing unit further receives a second time sent by a fault indicator device (N) arranged at the other end of the circuit, and obtains, according to the first time and the second time, the distance between a fault point and the fault indicator device (M) through calculation by means of a double-end traveling wave ranging algorithm.

Classes IPC  ?

• G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux

Abrégé

A GIS driven by only motors, comprising a GIS body and a monitoring device. The GIS body comprises a circuit breaker portion, an isolating switch portion, and a grounding switch portion. The circuit breaker portion comprises a circuit breaker and a servo motor module configured to control the opening and closing of the circuit breaker. The isolating switch portion comprises an isolating switch and a servo motor module configured to control the opening and closing of the isolating switch. The grounding switch portion comprises a grounding switch and a servo motor module configured to control the opening and closing of the grounding switch. The size and weight of the switchgear are reduced. The monitoring device is connected to the circuit breaker servo motor module, the isolating switch servo motor module, and the grounding switch servo motor module to control the circuit breaker, the isolating switch, and the grounding switch to perform opening and closing operations.

Classes IPC  ?

• H02B 13/035 - Appareillages de commutation à isolation gazeuse
• H01H 33/36 - Dispositions à énergie incorporée dans l'interrupteur pour actionner le mécanisme moteur utilisant un moteur dynamo-électrique

Abrégé

An isolation switch and a conductive base thereof, which relate to the technical field of high-voltage switch devices, and which may solve the problems in the prior art wherein conductive bases are high-cost and a heat dissipation effect is poor. The isolation switch comprises a conductive tube assembly and a conductive base (10) used for mounting the conductive tube assembly, and the conductive base comprises a base body; the base body is provided thereon with a conductive tube hinge base (16) for hinging the conductive tube assembly, and a flange mounting base (18) that rotatably assembles a corresponding drive flange (10); the base body is formed from two support beams (11) arranged at an interval; the conductive tube hinge base (16) and the flange mounting base (18) are located at two ends of the support beams (11) respectively and are fixed between the two support beams (11); and the support beams (11), the conductive tube hinge base (16) and the flange mounting base (18) constitute a frame-like structure.

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails

Abrégé

A switchgear trolley provided with a lightning arrester and a switchgear using the same. The switchgear trolley provided with a lightning arrester comprises a frame (10). A faceplate (11) is provided at a rear side of the frame (10). The frame (10) is provided with a contact arm (30) positioned at a front side of the faceplate (11). The switchgear trolley further comprises a lightning arrester (20) connected to the contact arm (30). A rear end of the lightning arrester (20) is fixed at the frame (10). A rear end of the contact arm (30) is fixed at a front end of the lightning arrester (20). The switchgear comprises a trolley compartment and the switchgear trolley provided with a lightning arrester. In the above solution, the contact arm (30) is directly installed at the frame (10) by means of the lightning arrester (20), thereby reducing occupied space in a radial direction of the contact arm (30). Compared with existing structures, the trolley of the invention has a compact structure and a smaller size.

Classes IPC  ?

• H02B 11/167 - Appareillages de commutation munis de support à retrait pour leur isolement à sectionnement par débrochage horizontal du type à chariot

Abrégé

The present application provides a vacuum arc extinguishing chamber and a vacuum circuit breaker, for solving the technical problem in the prior art of a vacuum arc extinguishing chamber being unable to satisfy usage requirements in a high power scenario. The vacuum arc extinguishing chamber of the present application comprises a housing, a movable contact, and a static contact; the movable contact comprises a movable main contact and a movable arcing contact; the static contact comprises a static main contact and a static arcing contact; an arc insulating gap is provided between the movable main contact and the movable arcing contact; an arc insulating gap is provided between the static main contact and the static arcing contact; the static main contact has a channel extending along an inserting direction; the positions of the static main contact and static arcing contact correspond to the positions of the movable main contact and movable arcing contact; the static arcing contact is movably mounted on the static main contact; the static arcing contact extends out of the static main contact, and the movable arcing contact extends out of the movable main contact, so that the movable arcing contact may come into contact with the static arcing contact before the movable main contact comes into contact with the static main contact when closing, and the movable arcing contact may be separated from the static arcing contact after the movable main contact is separated from the static main contact when opening; the movable arcing contact and the static arcing contact are both coil magnetic field contacts.

Classes IPC  ?

• H01H 33/664 - ContactsMoyens d'extinction d'arcs, p. ex. anneaux de garde

Abrégé

An infrared temperature sensing method employing contour extraction for a target object, a device, and a storage medium. The method comprises: detecting a target object according to an infrared temperature sensing apparatus, and obtaining a temperature distribution bitmap; performing image contour extraction, and obtaining at least two contours from a full-sized infrared image; selecting one pixel from the full-sized infrared image, and determining an innermost contour containing the pixel according to the selected pixel, the innermost contour being a target contour; and acquiring related temperature data of the infrared image within the target contour. In the invention, image contour extraction is performed on the temperature distribution bitmap to obtain the at least two contours, and the innermost contour containing the certain pixel is used as the target contour to prevent a portion of unwanted pixels from being included in the contour or a portion of useful pixels from being excluded outside of the contour, thereby improving the precision of displaying temperature distribution details in infrared temperature sensing.

Classes IPC  ?

• G01J 5/00 - Pyrométrie des radiations, p. ex. thermométrie infrarouge ou optique
• G06T 7/13 - Détection de bords
• G06T 7/181 - DécoupageDétection de bords impliquant des croissances de bordsDécoupageDétection de bords impliquant des liaisons de bords

Abrégé

A sulphur hexafluoride gas recovery and inflation device, comprises a joint device. The joint device is connected with a vacuumizing branch, a recovery branch and an inflation branch, and can gate or communicate the vacuumizing branch, the recovery branch and the inflation branch; a gas storage tank (19) is connected onto the recovery branch at one end away from the joint device; the upstream end of the inflation branch is connected to the recovery branch at the upstream of the gas storage tank (19), and the downstream end of the inflation branch is connected to the upstream end of the recovery branch; the recovery branch is provided with a gas liquefaction device.

Classes IPC  ?

• H01H 33/57 - Récupération de liquides ou de gaz
• C01B 17/45 - Composés contenant soufre et halogène avec ou sans oxygène
• F17D 1/04 - Systèmes de canalisation pour gaz ou vapeurs pour la distribution du gaz

Abrégé

A GIL power transmission system, power transmission line and grounding switch. The GIL power transmission system comprises a power transmission line, the power transmission line comprising a sleeve and a power transmission conductor provided within the sleeve. On the power transmission line is provided an earthed switch for, when the power transmission line disconnects, earthing the power transmission conductor, then releasing an induction current and induction voltage on the power transmission conductor. By means of the grounding switch, when the GIL power transmission line experiences a fault and disconnects, the invention can timely connect the power transmission conductor to ground, thereby timely releasing the induction current and induction voltage on the power transmission conductor, avoiding damage to an apparatus caused by the induction current and induction voltage on the power transmission conductor, and enabling the safe operation of the entire GIL power transmission system.

Classes IPC  ?

• H02B 13/075 - Dispositions pour la mise à la terre
• H01H 31/32 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs avec contact mobile demeurant électriquement connecté à une ligne en position d'ouverture de l'interrupteur avec contact à déplacement rectiligne

Abrégé

A handcart equipped with a DC fast switch and a DC circuit breaker cabinet using the handcart, pertaining to the field of high voltage switches. The handcart equipped with a DC fast switch comprises a cart body (1) and a fast mechanical switch (2) disposed on the cart body (1). Two ports of the fast mechanical switch (2) are respectively connected to main ports (A, B) for connecting to two terminals of a main through-current branch in the DC circuit breaker, and the two main ports (A, B) are respectively in conductive connection with sub-ports (C, D) so as to form a parallel connection with a commutating branch and an energy-consuming branch in the DC circuit breaker. The main ports (A, B) for connection to the main through-current branch and the sub-ports (C, D) for parallel connection to the transfer branch and the energy-consuming branch are integrated on the same handcart, eliminating the need for a large-sized disconnection switch, and simplifying a wiring method, thereby greatly reducing the size of the DC circuit breaker, allowing the product to be compact, easy to operate, and convenient for maintenance of the fast mechanical switch.

Classes IPC  ?

• H02B 11/167 - Appareillages de commutation munis de support à retrait pour leur isolement à sectionnement par débrochage horizontal du type à chariot

Abrégé

An electromagnetic repulsion-based actuating mechanism, energy storage module for same, and energy storage device. The electromagnetic repulsion-based actuating mechanism comprises a voltage conversion module (302), an energy storage unit, a drive coil (305), and a buffer coil (308). The energy storage unit comprises two energy storage modules (303, 306) connected to the drive coil and the buffer coil, respectively. Each of the energy storage modules comprises an energy storage capacitor, a charging circuit, and a discharging circuit, wherein the charging circuit and the discharging circuit are connected to two ends of the energy storage capacitor, respectively, the discharging circuit is composed of a thyristor having one end connected to the energy storage capacitor and another end connected to an excitation coil of the electromagnetic repulsion-based actuating mechanism. The electromagnetic repulsion-based actuating mechanism has a simple control circuit, a high level of automation, superior reliability, and excellent interference resistance.

Classes IPC  ?

• H01H 33/666 - Dispositions pour l'actionnement

Abrégé

Provided are a hydraulic operating mechanism and a switch using the hydraulic operating mechanism to achieve adjustment and control of a "close-open" time of a circuit breaker. The hydraulic operating mechanism comprises a working cylinder (7) having a working cylinder piston rod (8), and a main valve (13) for controlling movement of the working cylinder piston rod (8), and a closing valve connected to the main valve (13) by controlling an oil passage. The closing valve is controlled by a closing electromagnet (17). The hydraulic operating mechanism further comprises an auxiliary switch (3) for controlling the opening and closing of a circuit where the closing electromagnet (17) is located. The hydraulic operating mechanism further comprises a signal cylinder (4) that triggers the auxiliary switch (3) during a reciprocating movement of the piston rod. Two chambers of the signal cylinder (4) are respectively in communication with the two chambers of the working cylinder (7). During operation, the piston rod of the signal cylinder (4) can move only when the working cylinder (7) drives the switch to close in position, and the auxiliary switch (3) is triggered to control the power loss of the closing electromagnet (17). The occurrence of the opening of the circuit breaker after the circuit breaker is not closed in position can be avoided, and the control to the "close-open" time of the circuit breaker is realized.

Classes IPC  ?

• H01H 3/24 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moyen d'actionnement pneumatique ou hydraulique
• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement

Abrégé

The invention provides a direct current (DC) isolation switch capable of opening and closing a harmonic current. A DC isolation switch comprises a main static contact, a moving end component and an arc extinguishing device. The arc extinguishing device comprises an arc extinguishing chamber having an operating handle and an auxiliary static contact disposed on forward and backward moving paths of the main moving contact. The auxiliary static contact is connected in parallel with the main static contact through the arc extinguishing chamber, and the arc extinguishing device further comprises an auxiliary moving contact and a lever that are arranged on the moving end component and move along with the moving end component. During the process that the auxiliary moving contact and the lever move back and forth along with the moving end member, the auxiliary moving contact is in contact with the auxiliary static contact before the arc extinguishing chamber is closed with a lever operation handle and then separated after the main moving contact and the main static contact are separated, and the arc extinguishing chamber is closed before the main moving contact is contacted and the main static contact is connected. The auxiliary moving contact and the auxiliary static contact are in contact with each other before the main moving contact and the main static contact are separated, and are separated after the arc extinguishing chamber is opened by the lever toggling the operation handle. The arc extinguishing chamber is opened after the main moving contact and the main static contact are separated.

Classes IPC  ?

• H01H 33/02 - Interrupteurs pour haute tension ou courant fort comportant des moyens d'extinction ou de prévention des arcs Détails
• H01H 33/12 - Contacts auxiliaires sur lesquels l'arc est transféré des contacts principaux

Abrégé

Provided in the present invention is a three-phsase-in-one-box busbar cylinder. The three-phase-in-one-box busbar cylinder comprises a cylinder body. Three single-phase attachment mounting holes are provided at intervals in the axial direction on the cylinder body. Single-phase attachment mounting flanges are provided at the single-phase attachment mounting holes. Basin-type insulators are provided on the single-phase attachment mounting flanges. An electrical connector electrical-conductively connected to an axial conductor is also provided within the cylinder body. Protruding extremities of the basin-type insulators are arranged facing the interior of the cylinder body. One extremity of the electrical connector is provided on the end surfaces of the protruding extremities of the basin-type insulators. Also provided in the present invention is a GIS device comprising the three-phase-in-one-box busbar cylinder. The employment of the three-phase-in-one-box busbar cylinder and the GIS device thereof of the present invention obviates the need to provide a supporting insulator within the three-phase-in-one-box busbar cylinder to support the axial conductor, thus reducing the degree of complexity of the three-phase-in-one-box busbar cylinder.

Classes IPC  ?

• H02B 13/035 - Appareillages de commutation à isolation gazeuse

Abrégé

Disclosed are a contact collision buffer device and a sulphur hexafluoride circuit breaker using the device. The contact collision buffer device comprises a guiding base (1) and a guiding rod (2) for a contact provided in a guiding manner on the guiding base (1), wherein one end of the guiding rod (2) for a contact enables a contact (3) to be mounted and the other end is connected to a damping structure, the damping structure comprises a piston cylinder (5) and a piston (6) provided in the piston cylinder (5), the guiding rod (2) for a contact is fixedly connected to the piston (6), and a damping hole (8) is provided on the piston (6). The contact collision buffer device further comprises a spring (4) used for providing an elastic counterforce to the contact (3) when the contact (3) on the guiding rod (2) for a contact collides.

Classes IPC  ?

• H01H 3/60 - Dispositions mécaniques pour empêcher ou amortir les vibrations ou les chocs

Abrégé

The present invention relates to an arc extinguishing device and a circuit breaker using the arc extinguishing device. The arc extinguishing device comprises at least two arc extinguishing grid plates which are provided at intervals in parallel along the longitudinal direction. The dimension of at least one of the arc extinguishing grid plates in the height direction is greater than the dimension of an adjacent arc extinguishing grid plate, on at least one side thereof, in the height direction. By means of such a structure, the electric arc directed from the circuit breaker to the arc distinguishing device is rapidly elongated in the arc extinguishing grid plate, and is cut by the arc extinguishing grid plate to form a plurality of short electric arcs. The arc extinguishing grid plate, which has smaller dimension in the height direction, can limit the height and make the arc not too high, and thus the electric arc is concentrated within the height range of small arc extinguishing grid plates, thereby facilitating the control and cutting of the electric arc; and a large dimensioned metal grid plate is favorable to the heat dissipation of the electric arc.

Classes IPC  ?

• H01H 9/36 - Pièces métalliques

Abrégé

The present invention relates to a high-voltage switch. The high-voltage switch comprises a switch body and an operation apparatus for driving the action of the switch body, wherein the operation apparatus is connected to a control apparatus; and the control apparatus comprises a controller for controlling the switching-off and switching-on operations of the operation apparatus and processing a feedback signal from the operation apparatus. When using this apparatus, an operator can monitor the working situation of the high-voltage switch by means of the controller, and make an adjustment in a timely manner when the high-voltage switch works abnormally, thus avoiding the abnormal phenomenon of deterioration caused by untimely discovery; and the operator can also predict the working situation of the high-voltage switch according to the monitoring situation, adjust the apparatus in advance according to a predicted structure, and deal with an abnormal source before an abnormal phenomenon occurs, thus realizing the intelligent control of a high-voltage switch device and improving the running reliability of the high-voltage switch device.

Classes IPC  ?

• H01H 3/26 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur dynamo-électrique
• H01H 3/32 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts

Abrégé

Disclosed are a system for putting regulating systems in parallel, a control method and apparatus, and a storage medium. The method comprises: when a primary three-phase imbalance regulating system is put into a power grid in parallel, the system simultaneously calculating the actual power of its own in real time, and when the actual power of the three-phase imbalance regulating system is greater than a set power threshold value, putting one or more secondary three-phase imbalance regulating systems into the power grid in parallel. The control policy of putting secondary three-phase imbalance regulating systems in parallel according to the condition of the actual power in a primary three-phase imbalance regulating system satisfies the regulation requirement of three-phase imbalance, realises the quick and smooth regulation of three-phase imbalance of an output side of a distribution transformer, and can effectively reduce the loss of a distribution line, and improve the power of the distribution transformer and improve the safe operation capability of a distribution system, thereby improving the power supply quality of a user.

Classes IPC  ?

• H02J 3/26 - Dispositions pour l'élimination ou la réduction des asymétries dans les réseaux polyphasés

Abrégé

A quick gas-insulated bus grounding device, comprising: a gas filled compartment body (30) comprising a gas filled compartment (11) and a pressure relief channel (13), a pressure relief device (12) being provided between the pressure relief channel (13) and the gas filled compartment (11), and a self-sealing valve (14) being provided on the gas filled compartment (11); six bus bushings (1) mounted on side plates of the gas filled compartment (11), two bus bushings (1) forming a phase and being opposite to each other; a three-phase main busbar (7) located in the gas filled compartment (11), each phase of main busbar (7) being mounted between two bus bushings (1) of corresponding phase and being connected to a main bus of an external switch cabinet by means of two bus bushings (1) of the phase; a three-phase grounding component (3) located in the gas filled compartment (11), an upper end of each phase of grounding component (3) being connected to the main busbar (7) of corresponding phase, and a lower end of a guide rod (4) in each phase of grounding component (3) being supported on a side plate in the gas filled compartment (11); and a driving mechanism (15) configured to drive the three-phase grounding component (3) to achieve grounding on/off. The device satisfies reliable grounding of a main bus of a gas-insulated switch cabinet, and has strong closing capability, small volume and high safety.

Classes IPC  ?

• H02B 13/075 - Dispositions pour la mise à la terre

Abrégé

An isolation circuit breaker, comprises a fixed contact; a moving contact contacted with or separated from the fixed contact; and an operating mechanism for driving the moving contact to move to have different distances from the fixed contact; the moving contact can be positioned at three set positions; the first position is a switching-on position in a closed state; the second position is a switching-off position in a circuit open state; the third position is an isolation position in an isolation state; a distance of the moving contact at the isolation position is greater than that of the moving contact at the switching-off position. The servo-drive isolation circuit breaker can solve the problem that the isolation switch and switching-on and switching-off functions cannot cooperate with each other because the fixed contact and the moving contact of a traditional isolation circuit use a fixed distance mode.

Classes IPC  ?

• H01H 3/26 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur dynamo-électrique

Abrégé

A direct current switching station, comprising N (N≥3) direct current outgoing wire ends and M (M

Classes IPC  ?

• H02B 1/24 - Circuits pour tableaux ou stations de commutation

Abrégé

A hybrid high-voltage direct-current breaker and a power unit thereof. The hybrid high-voltage direct-current breaker consists of a flow-through branch and a transfer branch; the flow-through branch comprises a mechanical switch and a flow-through branch power unit; the transfer branch comprises a plurality of transfer branch power units using an improved H-bridge structure; the improved H-bridge structure comprises three parallel branches, the first branch comprising a capacitor, and each of the second branch and the third branch comprising two fully-controlled power devices connected in series in an opposite direction; the structure of the power unit of the hybrid high-voltage direct current breaker is the improved H-bridge structure.

Classes IPC  ?

• H03K 17/567 - Circuits caractérisés par l'utilisation d'au moins deux types de dispositifs à semi-conducteurs, p. ex. BIMOS, dispositifs composites tels que IGBT

Abrégé

A hybrid direct current circuit breaker and a power unit. The direct current circuit breaker comprises a commutating branch, a connection/disconnection branch, and an energy absorption branch that are connected in parallel. The connection/disconnection branch comprises several connection/disconnection units that are connected in series, wherein the connection/disconnection unit uses a particular power unit structure. The particular power unit structure comprises at least one forward channel branch and at least one reverse channel branch that are connected in parallel. The forward channel branch and the reverse channel branch each comprise a fully-controlled power device and a diode that are connected in series in a same direction. The conduction direction of the forward channel branch is opposite to that of the reverse channel branch. By connecting a plurality of single channel branches in parallel, the connection/disconnection units of the direct current circuit breaker effectively improve the flexibility and reliability of current connection/disconnection of the circuit breaker.

Classes IPC  ?

• H02H 3/087 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge pour des systèmes à courant continu

Abrégé

A high-voltage switch and a circuit breaker unit thereof. The high-voltage switch has one or at least two circuit breaker units connected in series; the circuit breaker unit comprises a main arc-extinguishing chamber (1) with a dynamic arc contact (16); a shunting switch (2) is connected onto the main arc-extinguishing chamber (1) in parallel; the shunting switch (2) comprises a static switch contact (23) and a dynamic switch contact (22) co-moving with the dynamic arc contact (16); the main arc-extinguishing chamber (1) is a double-acting arc-extinguishing chamber; the main arc-extinguishing chamber (1) further comprises a follow-up arc contact (19) which is in drive joint with the dynamic arc contact (16) via a drive mechanism so as to be able to move towards and away from the dynamic arc contact (16); the dynamic arc contact (16) and the follow-up arc contact (19) are switched on before the static switch contact (23) and the dynamic switch contact (22) are switched on; and the dynamic arc contact (16) and the follow-up arc contact (19) are switched on after the static switch contact (23) and the dynamic switch contact (22) are switched on.

Classes IPC  ?

• H01H 33/12 - Contacts auxiliaires sur lesquels l'arc est transféré des contacts principaux

Abrégé

A silicone rubber casing transport bracket, comprising a lower bracket (1) and an upper bracket (3), the upper bracket is mounted on the lower bracket by means of a support member (2), the height of the support member allows for a silicone rubber casing to be arranged on the lower bracket, the upper and lower bracket are respectively provided with a limit component, wherein the limit component comprises a top limit structure (4) for securing the top portion of the casing and a tail limit structure (5) for restricting only the radial displacement of a casing tail, such that an axial displacement of the casing tail is possible relative to the bracket. The transport bracket is capable of transporting an additional silicone rubber casing so as to effectively make use of the space, and reduce the costs of transport. During the process of lifting a casing, when the bracket is slightly deformed, the casing can move axially to avoid damage caused by pressing and a bending deformation force.

Classes IPC  ?

• B65D 88/12 - Grands réceptacles rigides spécialement conçus pour le transport
• F16L 3/22 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers spécialement adaptés pour supporter un certain nombre de tuyaux parallèles séparés par un espace
• H01B 17/56 - Corps isolants

Abrégé

A circuit breaker, comprising a supporting insulator (1), an optical fibre current transformer and at least one arc extinguishing chamber (2, 3), wherein a top portion of the supporting insulator (1) is provided with a supporting insulator upper flange (16); the optical fibre current transformer comprises an optical fibre current transformer coil (17), with the optical fibre current transformer coil (17) being sheathed outside the supporting insulator upper flange (16); and the supporting insulator upper flange (16) is a conductor electrically connected to a movable contact of the corresponding arc extinguishing chamber (2, 3), so that a current of the arc extinguishing chamber (2, 3) passes through an inner hole of the optical fibre current transformer coil (17).

Classes IPC  ?

• H01H 33/02 - Interrupteurs pour haute tension ou courant fort comportant des moyens d'extinction ou de prévention des arcs Détails

Abrégé

Disclosed are a circuit breaker and an actuator thereof. The circuit breaker comprises the actuator. The actuator comprises a transverse pull rod (1) connected to a moving contact and a crank arm (9) connected to the transverse pull rod in a transmission manner through a connecting plate (12) for driving the transverse pull rod to move left and right. The rotational axis of the crank arm extends in the forward and backward directions. One end of the connecting plate is articulated to the crank arm, while the other end of the connecting plate is articulated to the transverse pull rod through an articulating pin (4) with an axis extending in the forward and backward directions. The actuator further comprises an articulating pin guide part (13), and the articulating pin guide part is provided with an articulating pin guide structure moving in cooperation with the articulating pin for guiding same in the left and right directions.

Classes IPC  ?

• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement

Abrégé

An isolating and grounding switch mechanism (1) and a gas-insulated metal-enclosed switchgear. The isolating and grounding switch mechanism (1) comprises a housing (19), an isolating switch (12), and a grounding switch (11). The isolating switch (12) comprises an isolating switch moving contact (124) and an isolating switch stationary contact (123) that are provided in parallel along an axial direction. The grounding switch (11) comprises a grounding switch moving contact (112) and a grounding switch stationary contact (113). The interior of the housing (19) is provided with a transformer connection terminal (145), an external connection terminal for connection to a main loop access conductive structure, and a guide contact base (14) and a connection contact base (15) horizontally provided in parallel along the axial direction. The transformer connection terminal (145) is provided on the guide contact base (14). The isolating switch stationary contact (123) is provided at a position of the connection contact base (15) facing the guide contact base (14). The external connection terminal is provided at a position of the connection contact base (15) that allows access of the main loop access conductive structure along the axial direction. The isolating switch moving contact (124) is axially guided to pass through the guide contact base (14), and has a switching-on station that is in contact fit with the connection contact base (15).

Classes IPC  ?

• H02B 13/075 - Dispositions pour la mise à la terre
• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails

Abrégé

An isolation and grounding switch mechanism (1), a switchgear, and a guide contact base (14) thereof, relating to the field of high voltage switchgears. The guide contact base (14) comprises a base body (140) and an isolation switch moving contact base (142) provided on the base body (140). The base body (140) is provided with a guide hole horizontally arranged in the isolation and grounding switch mechanism (1). An opening at one end of the guide hole faces a direction along which a main circuit is connected to a conductive structure, and an opening at the other end of the guide hole faces an insertion direction of an isolation switch moving contact (124). The base body (140) is further provided with a transformer connection terminal.

Classes IPC  ?

• H02B 13/075 - Dispositions pour la mise à la terre
• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails

Abrégé

Provided are a pressurized container and a locking ring for use in a pressurized container. The pressurized container comprises: a container cover (1); a container body (3) having an opening facing toward a first direction; an outwardly-turned container cover edge (11); an outwardly-turned container body edge (31); and a locking ring (2). A container cover connection tooth is disposed on the outwardly-turned container cover edge (11), and a container body connection tooth is disposed on the outwardly-turned container body edge (31). Left and right inwardly-turned edges (22, 21) are disposed on an inner wall surface of the locking ring at axial intervals. A left connection tooth (221) is disposed on the left inwardly-turned edge (22), and a right connection tooth (211) is disposed on the right inwardly-turned edge (21). A container body recess forms a left allowance passage allowing the left connection tooth to pass therethrough from right to left. A right inwardly-turned edge recess forms a right allowance passage allowing the container cover connection tooth to enter between the left and right inwardly-turned edges (22, 21) from right to left. Rotation of the locking ring can position the left connection tooth at the left side of the container body connection tooth and the right connection tooth at the right side of the container cover connection tooth, thereby realizing stopped engagement in an axial direction. The pressurized container can be disassembled conveniently by only turning the relatively light locking ring, thereby significantly increasing a disassembly efficiency of the pressurized container.

Classes IPC  ?

• F16J 13/02 - Organes de fermeture amoviblesMoyens de serrage des fermetures

Abrégé

Disclosed are a main circuit (1) of a solid insulated switchgear and a solid insulated switchgear using the main circuit (1). The main circuit (1) of a solid insulated switchgear comprises a three-phase single-electrode structure. The single-electrode structure of each phase is configured to expand horizontally. The three-phase single-electrode structure is arranged vertically. The three-phase single-electrode structure of main circuit (1) expands horizontally and is arranged vertically, so that the width of the solid insulated switchgear can be reduced, thereby resolving a problem of a large width of a conventional solid insulated switchgear.

Classes IPC  ?

• H02B 1/24 - Circuits pour tableaux ou stations de commutation
• H02B 1/20 - Schémas de barres omnibus ou d'autres fileries, p. ex. dans des armoires, dans les stations de commutation
• H02B 13/025 - Dispositions pour la sécurité, p. ex. en cas de surpression ou d'incendie causés par un défaut électrique

Abrégé

Provided is a double-break vacuum breaker. The breaker comprises an upper arc extinguishing chamber (3) and a lower arc extinguishing chamber (8) disposed at an upper portion and a lower portion thereof, and further comprises a transmission box (10). A tri-linkage is provided in the transmission box (10), and comprises an upper transmission plate (17) and a lower transmission plate (18). A left end of the upper transmission plate (17) and a left end of the lower transmission plate (18) are articulated via a first articulated shaft. A right end of an insulating pull rod (11) is connected to the first articulated shaft. An upper movable conductive member of a movable end of the upper arc extinguishing chamber (3) is articulated with a right end of the upper transmission plate (17) via an upper articulated shaft. A movable end of the lower arc extinguishing chamber (8) is articulated with a right end of the lower transmission plate (18) via a lower articulated shaft. The transmission box (10) is provided with an upper guiding slot (21) configured to guide a movement of the upper articulated shaft in an up-down direction, a lower guiding slot (24) configured to guide a movement of the lower articulated shaft in the up-down direction, and a first guiding slot (25) configured to guide a movement of the first articulated shaft in a left-right direction.

Classes IPC  ?

• H01H 33/666 - Dispositions pour l'actionnement

Abrégé

A high-voltage DC support insulator test apparatus, test system and test method. The high-voltage DC support insulator test apparatus comprises an enclosed test container (12), wherein the test container (12) is provided with a group of test seats (20) used for mounting a tested DC support insulator (101) and a common power supply apparatus (18) used for providing a test voltage to the tested DC support insulator (101). The test apparatus further comprises disconnection apparatuses (21, 27, 28, 29) corresponding to the test seats (20) and used for disconnecting the common power supply apparatus (18) and the corresponding tested DC support insulator (101) under set conditions. The characteristics of the DC support insulator (101) can be learnt more accurately by testing a group of DC support insulators (101) under the same conditions, thereby improving the accuracy of a test result of the DC support insulators (101).

Classes IPC  ?

• G01R 31/12 - Test de la rigidité diélectrique ou de la tension disruptive
• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs

Abrégé

An interlocking device for a switchgear, and a switch cabinet using the interlocking device. The interlocking device for a switchgear comprises a connecting rod (3), a rack plate (11), and a rotating wheel (1) fixed with a two-station mechanism gear. The rotating wheel (1) is provided with a cam profile groove (12) connected to one end of the connecting rod (3) in a sliding way, the other end of the connecting rod (3) is hinged with a limiting device (5) which is used for limiting a half shaft crank arm (8) fixedly connected to a switch-on half shaft (9) of a circuit breaker, and the limiting device (5) is connected to the rack plate (11) in a sliding way and is driven to make reciprocating linear motion on the rack plate (11) by the connecting rod (3); the cam profile groove (12) comprises a first groove section, a second groove section, and a third groove section, the two ends of the first groove section being connected to the second groove section and the third groove section; when the end, connected to the cam profile groove (12), of the connecting rod (3) is located in the first groove section, the limiting device (5) is located at a first position along a linear motion direction; and when the end, connected to the cam profile groove (12), of the connecting rod (3) is located in the second or third groove section, the limiting device (5) is located at a second or a third position along the linear motion direction. The present invention resolves the problem of failure in interlocking between a two-station mechanism and a vertically arranged circuit breaker.

Classes IPC  ?

• H01H 9/26 - Mécanismes d'interverrouillage, verrouillage ou accrochage pour interverrouillage de plusieurs interrupteurs

Abrégé

A method of calculating a step voltage and a maximum contact voltage in a gas-insulated substation, comprising: upon precisely calculating a housing loop current condition, a grounding condition and a housing potential distribution condition of a totally-enclosed combined electric apparatus, obtaining a potential distribution condition of a soil surface, thereby obtaining, on the basis of the above, distribution conditions of the substation step voltage and a maximum contact voltage. The method greatly increases calculation precision, more precisely performs calculations with respect to a problem at the substation, and performs targeted and effective prevention and maintenance with respect to problems resulting from faults at the substation. The method is economically favorable, and reduces unnecessary economic losses by targeted prevention.

Classes IPC  ?

• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
• G01R 17/20 - Dispositions pour procéder aux mesures potentiométriques en alternatif ou en continu

Abrégé

An insulating epoxy resin composition with a high thermal conductivity and a preparation method therefor. The composition comprises the following components: (A) one or more epoxy resins; (B) one or more anhydride curing agents; (C) a boron nitride aggregate; and (D) a micro-nano inorganic particle composition, wherein the mass percentage of the component (C) is 50%-70% of the epoxy resin composition; and the mass percentage of the component (D) is 15%-35% of the epoxy resin composition. The composition provided by the present invention has electric properties, such as a high thermal conductivity and an excellent breakdown strength.

Classes IPC  ?

• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• C08K 9/06 - Ingrédients traités par des substances organiques par des composés contenant du silicium
• C08K 9/08 - Ingrédients agglomérés par traitement avec un liant
• C08K 7/00 - Emploi d'ingrédients caractérisés par leur forme
• C08K 3/38 - Composés contenant du bore
• C08K 3/28 - Composés contenant de l'azote
• C08K 3/22 - OxydesHydroxydes de métaux
• C08K 3/36 - Silice

Abrégé

The present invention relates to the field of high voltage power transmission, and relates in particular to a high voltage damping resistor, and a high voltage power transmission system using the same. The high voltage damping resistor comprises a composite outer sleeve and a resistance assembly, one end of the composite outer sleeve being provided with a wiring terminal flange for connecting an overhead line, the other end being provided with a transformer connection flange, the resistance assembly being electrically connected between the wiring terminal flange and the transformer connection flange, the resistance assembly comprising an insulation rod and at least one resistance piece arranged on the insulation rod, the resistance pieces being respectively electrically connected to the wiring terminal flange and the transformer connection flange. When in use, the high voltage damping resistor may be connected in series between an isolation switch and a capacitive voltage transformer, and via resistance voltage dividing and energy consumption characteristics of the high voltage damping resistor, high frequency oscillation wave damping produced during operation of the isolation switch is consumed, achieving the goal of protecting the capacitive voltage transformer, and thereby solving the problem that capacitive voltage transformers in existing high voltage power transmission systems easily break down.

Classes IPC  ?

• H01C 13/02 - Combinaisons structurelles de résistances
• H01C 1/14 - Bornes ou points de prise spécialement adaptés aux résistancesDispositions de bornes ou points de prise sur les résistances
• H01C 1/026 - BoîtiersEnveloppesEnrobageRemplissage de boîtier ou d'enveloppe le boîtier ou l'enveloppe étant fermé hermétiquement avec un gaz ou le vide entre l'élément résistif et le carter ou l'enveloppe

Abrégé

A high voltage switch moving contact mechanism, and a high voltage switch using the same. The high voltage switch moving contact mechanism comprises a moving contact (1) using a front end as a docking end, the moving contact being assembled in a guided manner along the axial direction on a guide rail component (2), the moving contact also being provided with a through-hole penetrating in the axial direction, a nut (4) being fixedly assembled in the through-hole or at one end of the through-hole, a screw (3) being assembled in the nut, a front end of the screw extending into the through-hole of the moving contact. In actual terms, the screw and the nut form a screw-nut mechanism, and the moving contact is fixed together with the nut. Therefore, when the moving contact is driven by the screw to move back and forth along the axial direction, the screw itself is free of axial movement, thereby reducing the space required at the rear of the screw, and solving the problem that existing high voltage switches are large in volume.

Classes IPC  ?

• H01H 3/32 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts
• H01H 3/40 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts utilisant la friction ou des appareillages dentés ou à vis écrou

Abrégé

A closing transmission mechanism, an operating mechanism using the transmission mechanism, and a circuit breaker. The closing transmission mechanism comprises a push rod and a force-transmitting block used for being fixedly arranged together with a corresponding movable contact (4), the force-transmitting block being located below the push rod and a force-bearing shoulder facing the push rod being arranged on the force-transmitting block, a downwardly opening recess used for being in a push fit with the force-bearing shoulder of the force-transmitting block so as to push the force-transmitting block to drive the movable contact (4) towards a stationary contact (5) and close when the push rod moves to the left being arranged on the push rod, a right end of the push rod being provided with a hinge structure. When tripping of the closing transmission mechanism is required, since the recess is in the push fit with the force-bearing shoulder of the force-transmitting block, an upward force is simply applied to the push rod to turn the push rod upward to separate the recess from the force-bearing shoulder of the force-transmitting block. Tripping is convenient, the recess is arranged directly on the push rod, the force-bearing shoulder is arranged on the force-transmitting block, the structure is simple, and disassembly and maintenance are convenient.

Classes IPC  ?

• H01H 71/68 - Mécanismes de réarmement à moteur actionnés par un électro-aimant

Abrégé

An arc extinguish chamber (1) for an isolated circuit breaker and an isolated circuit breaker using the arc extinguish chamber. The isolated circuit breaker includes an arc extinguish chamber, wherein the arc extinguish chamber is provided with a fixed main contact (7), a moving main contact (10), a fixed arcing contact (5) and a moving arcing contact (11) arranged in an up-to-down direction, the fixed main contact and the fixed arcing contact are located above the moving main contact and the moving arcing contact corresponding thereto when the isolated circuit breaker is open, the fixed arcing contact and the moving arcing contact are located on inner sides of the fixed main contact and the moving main contact, a shield cover (8) shielding the fixed arcing contact when the circuit breaker is open is disposed between the fixed arcing contact and the fixed main contact, and the shield cover has a lower shield end located below the fixed arcing contact when the circuit breaker is open. By arranging a shield cover in the arc extinguish chamber, the isolated circuit breaker can be used as a circuit breaker and an isolating switch, which has a simple structure, is easy to use, and can effectively reduce design and manufacturing costs of the isolated circuit breaker.

Classes IPC  ?

• H01H 73/18 - Moyens pour éteindre ou supprimer un arc

Abrégé

An ultra-high-speed mechanical switch, a switch fracture thereof and switch contacts thereof. The ultra-high-speed mechanical switch comprises a casing that is internally provided with a first switch contact and a second switch contact. The casing is also provided with an operating mechanism for driving opening and closing. The first switch contact and the second switch contact are orderly provided with conductive metal pieces at intervals along the movement direction. Every two adjacent conductive metal pieces are mutually insulated. The conductive metal pieces have span length that satisfies the following conditions: at a closing position, the conductive metal pieces on the first switch contact are sequentially connected to two adjacent conductive metal pieces on the matched second switch contact in a spanning manner, and the first switch contact and the second switch contact are switched on; and at an opening position, at least one end of each conductive metal piece on the first switch contact is located at the interval between two adjacent conductive metal pieces on the matched second switch contact, and the first switch contact and the second switch contact are switched off. The opening and closing time of the ultra-high-speed mechanical switch is short, and the use requirement can be satisfied.

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails

Abrégé

An ultra-high-speed mechanical switch comprises an insulation casing (1) that is internally provided with an electromagnetic operating mechanism used for driving switch pull rods (191, 192) to perform switch-opening and switch-closing movements. The electromagnetic operating mechanism comprises a movable iron core (90) in transmission connection with the switch pull rods, and a sealed cavity through which the movable iron core moves in a reciprocating manner to implement switch-opening and switch-closing. When moving to either end of the sealed cavity, the movable iron core is respectively at a switch-closed position and a switch-opened position. The movable iron core is a moving plate that divides the sealed cavity into two portions. Through holes (610) that connect the inside and the outside of the sealed cavity and are used for feeding or discharging buffering media are formed at a switch-opening position and a switch-closing position or at positions close to said opening position and said closing position on a circumferential wall of the sealed cavity. By means of the ultra-high-speed mechanical switch, the switch pull rods can be effectively buffered in the opening and closing movements, and mechanical impact is avoided.

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails

Abrégé

A repulsion operation mechanism comprises a movable iron core (90) in transmission connection with a switch pull rod (19), and a sealing cavity (7) through which the movable iron core (90) moves in a reciprocating manner for opening and closing purposes. When moving to two ends of the sealing cavity (7), the movable iron core (90) is respectively at a closing position and an opening position. The movable iron core (90) is a moving plate that divides the sealing cavity (7) into two portions. Through holes (610) that connect the inside and the outside of the sealing cavity (7) and are used for feeding or discharging buffering media are formed at an opening position and a closing position or at positions close to the opening position and the closing position on a circumferential wall of the sealing cavity (7). By means of the repulsion operation mechanism, quick buffering on the opening and closing movement of the switch pull rod can be effectively realized, and the buffering effect is good.

Classes IPC  ?

• H01H 71/24 - Mécanismes électromagnétiques

Abrégé

An interrupter assembly and porcelain column type sulfur hexafluoride breaker, the interrupter assembly comprising: more than two interrupter monomers (1, 2); each interrupter monomer comprises a moving support arranged at the head end and a static support arranged at the rear end, moving contacts (13, 23) being assembled on the moving support in a guiding and sliding mode, and static contacts (61, 62) coaxially opposite to the moving contacts being fixedly provided on the static support; the interrupter monomers are in end-to-end serial connection on the same axis, and the moving contacts of one interrupter monomer of each two adjacent interrupter monomers is in transmission connection to insulation connecting pieces (7, 71, 72) in transmission connection to the moving contacts of the other interrupter monomer, and the static support at the rear end of the former interrupter monomer of each two adjacent interrupter monomers is electrically connected to the moving support of the other interrupter monomer connected at the rear end of the interrupter monomer. Synchronous opening and closing can be carried out when the interrupter assembly is used, thus significantly improving the voltage grade borne by the interrupter of the breaker.

Classes IPC  ?

• H01H 33/74 - Interrupteurs comportant des moyens séparés pour diriger, obtenir ou augmenter l'écoulement du fluide extincteur d'arc comportant des organes fixes pour diriger l'écoulement du fluide extincteur d'arc, p. ex. chambre d'arc dans lesquels la coupure s'opère dans un gaz
• H01H 33/52 - Mécanismes d'interverrouillage pour interverrouiller plusieurs interrupteurs
• H01H 3/42 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts utilisant des cames ou excentriques

Abrégé

An operating mechanism and a locking device thereof. A rigid locking piece of the locking device is movably assembled on a tripping bracket, and used for stopping and avoiding in a swinging direction in an unlocking position of a plunger latch swinging arm when the plunger latch swinging arm is in a locking position; a disconnection prevention structure used for preventing the locking piece from being disconnected from the plunger latch swinging arm when the locking piece stops the plunger latch swinging arm is arranged on the tripping bracket; and a force application structure used for switching stopping and avoiding of the locking piece to the plunger latch swinging arm is arranged on the locking piece. When a plunger latch is in a locking position, limiting and avoiding to the plunger latch swinging arm can be achieved by the stopping and the avoiding of the locking piece to the plunger latch swinging arm, and an assurance effect before swinging of the plunger latch swinging arm is exerted, so that a mistaken touch prevention function of a tripping device during use is added, the idling safety of the tripping device is ensured, and a locking function is exerted to keeping of opening and closing motion of the whole operating mechanism.

Classes IPC  ?

• H01H 9/20 - Mécanismes d'interverrouillage, verrouillage ou accrochage

Abrégé

Disclosed are a tripping device and a spring operated mechanism using same. The tripping device comprises a device rack (71) and a first tripping shaft (61), wherein a first lock plunger (62) of which the hinging axis extends in a left-right direction is hinged to the device rack; a first reset spring (73) is provided between the first lock plunger and the device rack; an unlocking mechanism fitted to the first lock plunger is also provided on the device rack; a first guide groove (81) of which the guide direction extends in an up-down direction is provided on the device rack; the first tripping shaft is assembled in the first guide groove in guided motion, and the first tripping shaft is rotationally fitted to the first guide groove; and the first lock plunger is provided with a first tripping shaft pushing fitting part which forms a pushing fit with the first tripping shaft so as to push the first tripping shaft to an energy storage holding position under the action of the first reset spring. The first tripping shaft makes a linear motion along the first guide groove in the tripping process, thereby increasing the tripping speed. Moreover, when a tripping fitting piece presses the first tripping shaft, rolling friction exists therebetween, thereby ensuring tripping reliability.

Classes IPC  ?

• H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
• H01H 3/54 - Mécanismes pour le couplage ou découplage de la pièce actionnante, du mécanisme moteur ou des contacts

Abrégé

An integrated crank arm and a spring operation mechanism using the integrated crank arm. The integrated crank arm comprises a cover (30) that extends left and right along the axis; the cover is provided from left to right a first, second, third, and fourth installation plates, the plates being arranged in intervals; the first installation plate (35) and the second installation plate (24) are provided with connector pin holes (31) for installing a corresponding connector; the second installation plate (24) and the third installation plate (23) are provided with roller pin holes (32) for installing corresponding rollers that store energy when the circuit is broken; the third installation plate (23) and the fourth installation plate (27) are provided with a cushion pin hole (34) for connecting a corresponding cushion. The integrated crank arm and the spring operation mechanism using the integrated crank arm allow for a cushion or simultaneously a cushion and a roller that stores energy when the circuit is broken.

Classes IPC  ?

• H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort

Abrégé

A spring actuator mechanism, comprising a frame. The frame is provided with a buffer (65) and an output shaft (76) that extends left and right along the axis and is transmittingly connected to a movable contact of the corresponding circuit breaker; the output shaft is provided with a buffer crank arm (77); the buffer crank arm is provided with a pin shaft; a piston rod of the buffer is provided with a hinge connection hole (15); the pin shaft penetrates the hinge connection hole; the hinge connection hole is an elongated hole of which the length extension direction is consistent with that of the piston rod. The spring actuator mechanism does not affect the initial opening and closing speeds of a movable contact.

Classes IPC  ?

• H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
• H01H 3/32 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts
• H01H 3/60 - Dispositions mécaniques pour empêcher ou amortir les vibrations ou les chocs

Abrégé

A hydraulic operating mechanism for a high pressure switch and a hydraulic working cylinder thereof. The hydraulic working cylinder comprises a cylinder body (11) that is provided with an inner cavity and a main piston (18) that is assembled into the inner cavity of the cylinder body (11) in a sealing sliding mode. An auxiliary piston (9) independent from a piston rod (1) is assembled in a rod cavity of the cylinder body (11) along the left and right direction in a sliding mode. An area difference exists between the total area of a left-side pressure acting surface, which is leftward and acted by hydraulic oil, of the auxiliary piston (9) and the total area of a right-side pressure acting surface, which is rightward and acted by the hydraulic oil, of the auxiliary piston (9). A left limiting structure and a right limiting structure for stopping the auxiliary piston at a left limiting part and a right limiting part in the motion stroke of the auxiliary piston (9) are disposed in the rod cavity corresponding to the motion stroke set for the auxiliary piston (9). The hydraulic working cylinder can reduce the acceleration of the piston rod (1) after the motion speed of the piston rod (1) meets the requirement. Also provided is the hydraulic operating mechanism using the hydraulic working cylinder.

Classes IPC  ?

• F15B 15/17 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit du type à piston différentiel
• F15B 15/24 - Autres parties constitutives pour limiter la course
• F16J 1/00 - PistonsPistons à fourreauPlongeurs
• F16J 9/00 - Segments de piston, leurs logementsSegments d'étanchéité de structure similaire en général
• H01H 33/34 - Dispositions à énergie incorporée dans l'interrupteur pour actionner le mécanisme moteur utilisant un mécanisme de commande à fluide hydraulique

Abrégé

An energy accumulator with a gas leakage alarm device and a hydraulic operating mechanism, wherein the energy accumulator with the gas leakage alarm device comprises: an energy accumulator cylinder (1) and a piston (2) arranged in the energy accumulator cylinder, the energy accumulator cylinder (1) is provided with a pre-inflated cavity (32) separated by the piston (2), and the end of the energy accumulator close to the pre-inflated cavity (32) is provided with a piston displacement detection device for detecting the displacement of the piston. Since pressure in the pre-inflated cavity (32) will reduce after the gas therein leaks, the piston will move correspondingly, and thus the location of the piston can be detected via the piston displacement detection device, thereby timely obtaining the condition of gas leakage and setting an alarm location. If it is detected that the piston has moved to the set alarm location, it means that the gas in the pre-inflated cavity (32) has leaked and repairing is needed, and the device does not need to detect gas pressure after stopping a circuit breaker, which avoids an impact on the proper functioning of the circuit breaker.

Classes IPC  ?

• F15B 1/24 - Accumulateurs utilisant un coussin de gazDispositifs de remplissage de gazIndicateurs ou flotteurs à cet effet avec des moyens de séparation rigides, p. ex. pistons

Abrégé

A circuit breaker closing resistor tripping mechanism, and circuit breaker using same; the tripping mechanism comprises a mechanism box (11); the mechanism box is rotatably assembled with a transmission part (13) therein via a rotating shaft (12); the transmission part (13) is provided with two hinge points, the hinge axes of both the hinge points parallel to the rotating shaft (12); the rotating shaft (12) is further assembled with a connecting lever (16) and a toggle switch (17) in rotatable cooperation with the rotating shaft (12); a switch shaft (19) is rotatably assembled between two ends of the connecting lever (16); the switch shaft (19) is parallel to the rotating shaft (12), and a radial notch (191) for the toggle switch (17) to give way is arranged on the peripheral surface of the switch shaft (19); one end of the connecting lever (16) away from the rotating shaft (12) is hinged with a resistor connection rod (18) to turn on or turn off a closing resistor; a linkage connection piece (21) is disposed between the resistor connection rod (18) and the switch shaft (19); when a circuit breaker is switched on, the notch (191) on the switch shaft (19) is directly facing the toggle switch (17) to ensure that the connecting lever (16) drives the closing resistor to reset, thus realizing automatic switch-off of the closing resistor after the arc extinguish chamber contact of the circuit breaker is switched on.

Classes IPC  ?

• H01H 33/42 - Mécanismes moteurs

Abrégé

A grounding switch for a valve hall, comprising a grounding conducting rod (3) and an upper transmission base (2), wherein one end of the grounding conducting rod (3) rotationally cooperates with the upper transmission base (2), and a rotating axis at the end portion of the grounding conducting rod (3) extends leftwards and rightwards. The switch also comprises a drive mechanism used for driving the grounding conducting rod (3) to rotate around the rotating axis and swing forwards and backwards relative to a wall surface of the valve hall. A lower transmission base (4) is firmly provided beneath the upper transmission base (2). The drive mechanism comprises a piston cylinder (5) supported between the lower transmission base (4) and the grounding knife rod. The piston cylinder (5) comprises a cylinder body and a piston rod. The bottom of the cylinder body is hinged to the lower transmission base (4). The rotating axis at the bottom of the cylinder body extends leftwards and rightwards. One end of the piston rod is inserted into the cylinder body, and the other end thereof is hinged to the middle part of the grounding conducting rod (3). Since the grounding switch for a valve hall adopts a piston cylinder to realize first-level transmission, the grounding switch has the advantages of a simple structure and low production costs, and can be used in ± 1100 ultra-high voltage direct-current power transmission projects.

Classes IPC  ?

• H01H 33/42 - Mécanismes moteurs

Abrégé

A high-speed grounding switch and a grounding switch assembly unit composed thereof in the field of power transmission equipment. The high-speed grounding switch comprises a sulfur hexafluoride arc-extinguishing device being placed in an airtight air chamber of a shell of a corresponding assembly unit while in use, wherein the sulfur hexafluoride arc-extinguishing device comprises a static end assembly and a dynamic end assembly. The static end assembly comprises a static end conductor (7) and a static arc contact (9) electrically connected to the static end conductor (7). Electrically-conductive rod connection structures respectively used for fixedly and electrically connecting to adjacent ends of two corresponding electrically-conductive rods (3) are arranged on the static end conductor (7). The dynamic end assembly comprises a dynamic arc contact (11) used for grounding a corresponding fault phase by way of closing with the static arc contact (9). The high-speed grounding switch also comprises an operating mechanism (8) with a power output end being connected to the dynamic arc contact (11) in a driving mode. While in use, the electrically-conductive rods (3) of the grounding switch assembly unit are conductively connected to corresponding single phases. When a grounding short-circuit fault occurs in a single phase of an operating circuit, one-time electric arc is produced, the failed single phase is called a fault phase, circuit breakers at the two ends of the fault phase trip, and the one-time electric arc is extinguished. The other two energized phases continuously provide a current to a fault point through electrostatic coupling and electromagnetic coupling, so that a secondary-arc current is generated. At the moment, the operating mechanism (8) drives the dynamic arc contact and the static arc contact to close. The fault phase is grounded through the static arc contact (9) and the dynamic arc contact (11). A secondary-arc electric arc is extinguished. Subsequently, the operating mechanism (8) drives the dynamic arc contact and the static arc contact to open. The static arc contact and the dynamic arc contact in the sulfur hexafluoride arc-extinguishing device are used for grounding, so that smooth arc extinguishing can be guaranteed when the dynamic arc contact and the static arc contact are opened, thereby guaranteeing the successful reclosing of subsequent circuit breakers.

Classes IPC  ?

• H01H 33/04 - Moyens pour éteindre ou empêcher des arcs entre organes traversés par le courant

Abrégé

A combined type high-voltage composite apparatus and a unipolar structure thereof. The unipolar structure comprises a breaker (2) moving along a leftward-rightward opening-closing switch. Two current transformers (3) disposed at an interval in left-right mode are vertically disposed at an upper portion of the breaker (2) fixedly. A straight line transmission type three-station isolated grounding switch (6) moving along the leftward-rightward opening-closing brake is fixedly disposed at an upper portion of the right side current transformer. A line incoming casing pipe unit (4) inclined towards an upper right direction is fixedly disposed at a right end of the three-station isolated grounding switch (6). A line outgoing casing pipe unit (8) inclined towards an upper left direction is fixedly disposed at an upper portion of the left side current transformer. Space is fully used due to the arrangement, and the combined type high-voltage composite apparatus has the advantages of being simple in structure and proper in arrangement; and a vertical mounting mode is used for all unipoles, so that load is evenly borne by interphase transmission connection parts, and the mechanical stability is good.

Classes IPC  ?

• H02B 13/035 - Appareillages de commutation à isolation gazeuse
• H02B 1/04 - Montage sur ces dispositifs d'interrupteurs ou d'autres dispositifs en général, l'interrupteur ou le dispositif étant muni ou non d'une enveloppe

Abrégé

Disclosed are a main electrically conductive tube of a megavolt disconnector and a manufacturing method thereof. The main electrically conductive tube of a megavolt disconnector is composed of a mandrel (3), and a first conductor and a second conductor at two ends of the mandrel, which are welded coaxially, and main welding tubes (10) and main welding sleeves (11) fitting with each other in a plug-sleeve manner are arranged at the two ends of the mandrel and at corresponding welding positions of the first conductor and the second conductor to the mandrel, wherein the main welding sleeves are provided with a main plunger welding hole, and the main welding tubes are welded and fitted with the main welding sleeves via the main plunger welding holes. The main electrically conductive tube of a megavolt disconnector is long, and is manufactured by machining in segments and then welding and assembling, reducing equipment dependence and meeting the high-precision machining requirement for parts of a component.

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails
• H01H 11/00 - Appareillages ou procédés spécialement adaptés à la fabrication d'interrupteurs électriques

Abrégé

A high-voltage circuit breaker and an actuator mechanism thereof. Moving contact insulation pull rods of high-voltage circuit breaker units are driven into action by a crankshaft. A main journal of the crankshaft is transmissively connected at an output end of a power apparatus, thus causing the power apparatus to input a rotary torque to the entire crankshaft. The moving contact insulation pull rods are rotatively fitted onto a rod journal of the crankshaft, thus allowing, when the crankshaft is rotating, for the moving contact insulation pull rods to make reciprocal movements within the high-voltage circuit breaker units under the push-pull effects of the rod journal of the crankshaft. The moving contact insulation pull rods of three high-voltage circuit breaker units are pulled into action simultaneously, thus the high-voltage circuit breaker units are driven by the rotation of the crankshaft to make contact-opening/closing movements. Therefore, when the contacts of the high-voltage circuit breaker are opening/closing, the power apparatus and the crankshaft always rotate in one rotary direction. This is different from the form that a rotary motor and a lever need to rotate in the forward/reverse directions, thus solving for the high-voltage circuit breaker the problem of shortened service life and poor operational reliability.

Classes IPC  ?

• H01H 33/36 - Dispositions à énergie incorporée dans l'interrupteur pour actionner le mécanisme moteur utilisant un moteur dynamo-électrique

Abrégé

The present invention relates to a 800kv intelligent circuit breaker, comprising a circuit breaker body, and a protection, measurement and control system; the 800kv intelligent circuit breaker further comprises a state monitoring system. The state monitoring system comprises: a control cubicle being separated from the circuit breaker body and disposed locally, a state monitoring main IED being mounted in the control cubicle, state monitoring sub-IEDs of a corresponding phase being mounted in a mechanism case of each phase, the state monitoring sub-IEDs being connected in a communication manner to the state monitoring main IED, and the state monitoring main IED being connected to a state monitoring background system in a main control room through a fiber. The intelligent circuit breaker according to the present invention can fully monitor the device state, and different from the conventional device, does not perform regular maintenance if the device does not fail, while can make a reasonable maintenance arrangement according to an estimation result obtained by information collected by the system, thereby implementing condition-based maintenance. The used system scheme has a simple structure, has universality, and can be widely applied to other voltage-grade intelligent switchgears.

Classes IPC  ?

• H02B 13/035 - Appareillages de commutation à isolation gazeuse

Abrégé

The present invention relates to a grounding switch for a direct-current valve hall and a grounding conductive rod mechanism thereof. The grounding conductive rod mechanism comprises a grounding conductive rod which can swing front and back relative to a corresponding valve hall wall surface, and a transmission base mounted on the corresponding valve hall wall surface. The rotating shaft of the conductive rod is fixed on one end of the grounding conductive rod, wherein the rotating axes of the conductive rod extends along the left and right direction and the rotating shaft is rotatablely cooperated with the transmission base. The grounding conductive rod mechanism also comprises a counterweight structure which is transmission connected to the rotating shaft of the conductive rod by a balance transmission mechanism to apply torque for overcoming gravitational torque of the grounding conductive rod. This invention solves the problem that a grounding conductive rod in the prior art cannot be switched on or off stably.

Classes IPC  ?

• H01H 31/28 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs avec contact mobile demeurant électriquement connecté à une ligne en position d'ouverture de l'interrupteur avec contact à déplacement angulaire

Abrégé

A vacuum circuit breaker comprises an upper cover plate (5) with an assembly hole (21) and a piston (4) vertically and hermetically inserted into the assembly hole in a slidable manner. A rotating shaft (8) with a rotating axis extending along the horizontal direction is assembled rotationally below the upper cover plate. A connecting lever (7) in transmission connection to a lower end of the piston is fixed on the rotating shaft. A bracket (1) formed by two opposite and spaced side plates is fixed on a lower end surface of the upper cover plate. The rotating shaft is rotationally assembled on the two side plates. According to the vacuum circuit breaker, the structures of the piston, the connecting lever, and the rotating shaft can be seen directly through two holes on the bracket, so that operations such as contact switch-on bounce adjustment and spacing measurement can be performed conveniently on the vacuum circuit breaker. The vacuum circuit breaker is assembled or maintained without a limitation of a connecting lever box, so that the assembly and maintenance are more convenient, and the working efficiency is improved. In addition, the structure of an air seal is further simplified by matching the piston with an assembly hole of a sealing seat.

Classes IPC  ?

• H01H 33/666 - Dispositions pour l'actionnement

Abrégé

A breaker pole connection device and a breaker using same. The connection device comprises a side pole holder (1) and a middle pole holder (7), between which a connector is connected, wherein the connector comprises a side pole pin shaft (2), a side pole joint lever (3), an adjusting lever (4), and a middle pole joint lever (5). One end of the side pole joint lever is connected to the side pole holder, and the other end of the side pole joint lever has a screw thread matching the screw thread of one end of the adjusting lever. One end of the middle pole joint lever is connected to the middle pole holder, and the other end of the middle pole joint lever has the screw thread matching the screw thread of the other end of the adjusting lever. A screw thread spiral direction of the side pole joint lever is opposite to the screw thread spiral direction of the middle pole holder. By rotating the adjusting lever in different directions, the length of an entirety constituted by the side pole joint lever, the adjusting lever, and the middle pole joint lever may be adjusted, and finally adjustment and location of an angle between the two side pole posts and the middle pole post of the breaker may be implemented. The adjustment is convenient, and adjustment efficiency is obviously improved.

Classes IPC  ?

• H01H 33/02 - Interrupteurs pour haute tension ou courant fort comportant des moyens d'extinction ou de prévention des arcs Détails

Abrégé

A resistance device for a high-voltage circuit breaker, and a high-voltage circuit breaker. The resistance device comprises at least two resistors (3, 6, 9, 12) surrounding a main conducting rod (14); each resistor is electrically connected in series to an adjacent resistor by means of an electrical connector (4, 7, 10) to form a resistor chain; each electrical connector is bridged and supported at the front or the rear of the two resistors that are electrically connected by the electrical connector; each electrical connector is provided with a support insulator (5, 8, 11) that is used to connect each connector with the main conducting rod; the front end portion of a first resistor in the resistor chain is provided with a resistor static contact (1) having the same orientation as a contact of the main conducting rod; and the last resistor in the resistor chain is provided with an electrical connection body (13) that is used to electrically connect said resistor to the main conducting rod. The present invention has a simple structure and is small. When the invention is used, all of the space around the main conducting rod can be fully utilized, thereby overcoming the problem in the prior art wherein resistance devices are large and difficult to install.

Classes IPC  ?

• H01H 71/00 - Détails des interrupteurs ou relais de protection compris dans les groupes
• H01C 13/02 - Combinaisons structurelles de résistances

Abrégé

A conductive connection apparatus for an electrical switch device. The conductive connection apparatus separates the two functions of a contact seat in the prior art, i.e., electric field optimization and current bearing, divides same into a shielding can for optimizing an electric field and a contact seat for taking charge of bearing a current, and allows a contact finger installation slot to be located on the peripheral wall of the contact seat and allows the peripheral surface of a guide end of an insulation guide part to be exposed from the peripheral surface of the contact seat to contact the inner wall surface of a conductive tube, thus removing the blind hole structure of the contact seat in the prior art, so that the contour volume and mass of the contact seat are reduced, the processing difficulty of the contact seat is reduced, and the manufacturing cost of the contact seat is lowered, thereby solving the problem in the prior art that the contour volume and mass of the contact seat itself are large and the manufacturing cost is high.

Classes IPC  ?

• H02B 13/035 - Appareillages de commutation à isolation gazeuse
• H01R 13/46 - SoclesBoîtiers

Abrégé

An electromagnetic differential safety valve. A valve flap (18) is provided with a valve core (6) in the extending manner along the closing direction, the valve core (6) runs through a valve seat (4) in the sliding and sealing manners, a high-pressure connector is arranged on one side of the valve flap (18) in the opening direction, and a low-pressure connector is arranged on one side of the valve flap (18) in the closing direction; a circulation port is arranged on the valve seat (4) corresponding to the low-pressure connector, and the valve core (6) is provided with a through path which communicates the circulation port with the valve flap (18); the valve flap (18) is provided with a valve rod (19) in the extending manner along the opening direction, a valve core return spring (10) is mounted on the valve rod (19), and the valve rod (19) is inserted into the valve body (8) in the sliding, sealing and matching manners; a closed chamber which is larger than (6)the opening travel of the valve core is arranged between the tail end of the valve rod (19) and the valve body (8), and the safety valve is provided with a communicating channel which communicates the closed chamber with the low-pressure connector; and an electromagnet opening device used for opening the valve core (6) by pushing is arranged at one end of the valve core (6), and the end of the valve core (6) penetrates out of the valve seat (4). The electromagnetic differential safety valve which is integrated with the function of an oil drain valve presents the characteristics of low requirement on the spring, low opening resistance, and reliability in opening and closing.

Classes IPC  ?

• F16K 17/164 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté et restant fermés après retour à la pression normale
• F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
• F16K 31/60 - Poignées

Abrégé

A cushion for a high-voltage switch comprises a cylinder (3) with an opening at an upper end. A piston (9) is axially sealed in the cylinder in a sliding manner, a spring (6) is urged between the piston and the bottom of the cylinder, an annular stopping edge (8) for stopping the piston from separating from the cylinder is arranged at the opening at the upper end of the cylinder, and an inner hole of the annular stopping edge is used for a conductive rod of the high-voltage switch to pass through, so that the conductive rod contacts and fits with the piston; and an air vent (11) is disposed at the bottom of the cylinder. As the piston fits with the high-voltage switch, when the conductive rod produces an impact, the conductive rod contacts the piston, and the air around the spring and in the cylinder is compressed to cushion the impact of the conductive rod, thereby reducing the impact on the porcelain. When the conductive rod resets, the spring pushes the piston to reset.

Classes IPC  ?

• H01H 3/60 - Dispositions mécaniques pour empêcher ou amortir les vibrations ou les chocs

Abrégé

A combined fixed contact assembly for a high-voltage isolating switch comprises a mounting base (1). A first fixed contact (4) and a second fixed contact (8) connected to corresponding moving contacts, as well as a wiring terminal (2) electrically connected to the first fixed contact and the second fixed contact by a conductive device are mounted on the mounting base through a correspondingly disposed fixing support. Two fixed contacts of the fixed contact assembly are mounted on the mounting base through the fixing support, so that the two fixed contacts are respectively connected to an isolating switch at a polar line anti-flat valve side and to a bypass bus isolating switch, and the two isolating switches share one fixed contact assembly, thereby saving the land resource, increasing the construction speed, shortening the installation period, reducing the investment in the power plant, and reducing the installation and maintenance cost during the power plant construction.

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails
• H01H 1/58 - Connexions électriques avec ou entre contactsBornes

Abrégé

An ultra-high-voltage direct-current wall bushing and a support structure of a central conductor thereof. The central conductor of the wall bushing is divided into two parts, namely an indoor conductor (4) and an outdoor conductor (3). The indoor conductor and the outdoor conductor are fixed in a wall bushing body through the support structure arranged in the wall bushing body (1). The support structure is provided with a connecting contact head (2) which is used for fixedly connecting the indoor conductor and the outdoor conductor together. The connecting contact head is fixed on the inner wall of the wall bushing body through an insulator (5) which is fixedly connected with the connecting contact head. Because the length of the central conductor is formed by the lengths of the indoor conductor and the outdoor conductor, i.e., the longer length of the central conductor is formed by two general lengths or the shorter length, the problem of oversized deflection of the central conductor caused by overlong length of the central conductor is solved.

Classes IPC  ?

• H02G 3/22 - Installations de câbles ou de lignes à travers les murs, les sols ou les plafonds, p. ex. dans les immeubles
• H01R 11/00 - Éléments de connexion individuels assurant plusieurs emplacements de connexion espacés pour des organes conducteurs qui sont ou qui peuvent être interconnectés de cette façon, p. ex. pièces d'extrémité pour fils ou câbles supportées par le fil ou par le câble et possédant des moyens pour faciliter la connexion électrique avec quelqu'autre fil, borne, ou organe conducteur, répartiteurs
• H01R 11/03 - Éléments de connexion individuels assurant plusieurs emplacements de connexion espacés pour des organes conducteurs qui sont ou qui peuvent être interconnectés de cette façon, p. ex. pièces d'extrémité pour fils ou câbles supportées par le fil ou par le câble et possédant des moyens pour faciliter la connexion électrique avec quelqu'autre fil, borne, ou organe conducteur, répartiteurs caractérisés par le type des emplacements de connexion sur l'élément individuel ou par le type des connexions entre les emplacements de connexion et les organes conducteurs

Abrégé

An ultra-high voltage direct current wall bushing and a shielding structure thereof. The shielding structure comprises an inner shielding barrel (1) and an outer shielding barrel (2) that are coaxially sleeved, the outer shielding barrel having a trumpet-shaped opening at one end, the edge of the trumpet-shaped opening having an annular flange, and an annular fixed plate (3) being fixed at the periphery of the small end of the trumpet-shaped opening; a trumpet-shaped sleeve (6) being fixed at the periphery of the inner shielding barrel, and the edge of the trumpet-shaped sleeve also having an annular flange. The shielding structure further comprises an axially disposed support column (5), one end of the support column is fixed on the annular fixed plate and the other end is fixed at the edge of the trumpet-shaped sleeve. During use, one end of the support column is wrapped by the annular flange of the trumpet-shaped opening of the outer shielding barrel and the other end is wrapped by the annular flange of the trumpet-shaped sleeve. Since the connection structure between the support column and the shielding barrels stays within the annular shielding structure, thereby preventing the connection structure between the support column and the shielding barrels from affecting the electric field distribution in the wall bushing.

Classes IPC  ?

• H02G 3/22 - Installations de câbles ou de lignes à travers les murs, les sols ou les plafonds, p. ex. dans les immeubles
• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
• H01B 17/58 - Tuyaux, manchons, perles isolantes ou bobines au travers desquels passe le conducteur

Abrégé

The invention relates to a movable and static contact connection assembly and a high-voltage isolation grounding switch thereof. The movable and static contact connection assembly comprises a movable contact and a static contact which are inserted and matched correspondingly; the static contact comprises a static contact finger and a static arc contact which is arranged axially at the center of a static contact seat; the static arc contact is provided with a cylindrical contact lever which extends axially and is integrated circumferentially; the center of the matched end part of the movable contact and the static contact finger is provided with a mounting hole extending axially; the mounting hole is internally provided with a hollow columnar movable arc contact which is inserted and matched with the contact lever of the static arc contact in switching on; and the static arc contact and the active arc contact are inserted, contacted and matched. The integral cylindrical structure is adopted for the static arc contact arranged on the movable and static contact connection assembly and the high-voltage isolation grounding switch static contact, also the movable contact is internally provided with a corresponding inserted and matched structure, the reduction of the strength of structure of the static arc contact caused by the splitting of the static contact finger for the opening on the static arc contact is avoided, and simultaneously the problem of inaccurate excess of stroke after deformation is avoided caused by the easily-deformed pin finger on the static arc contact.

Classes IPC  ?

• H01H 1/38 - Contacts à fiche et prise
• H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs

Abrégé

The invention relates to a three-station isolation grounding switch, comprising a moving contact seat (3); an insulation rod (7) is rotationally provided on the moving contact seat; the insulation rod is provided with a power input end and a power output end provided with a gear (8); a moving contact (4) is movably and guidedly provided in the moving contact seat; the moving contact is fixedly provided with a rack (6) extending along a moving direction thereof and engaged with the gear; an installation chamber with the rack assembled therein is disposed in the moving contact; the power output end of the insulation rod penetrates into the installation chamber; the gear engages with the rack in the installation chamber; and the moving contact is provided with a long guiding hole (9) for guidedly matching the insulation rod along the moving direction. The three-station isolation grounding switch provides both the rack and the gear in the installation chamber, thus greatly improving the distribution of the electric field around the insulation rod, allowing for a small internal diameter of the housing of the isolation grounding switch.

Classes IPC  ?

• H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs
• H01H 3/40 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts utilisant la friction ou des appareillages dentés ou à vis écrou

Abrégé

A built-in coupler for measuring partial discharge in a GIS, comprising an inductive electrode (12) and an insulating plate (13) fixed between a short form cover plate (5) and the inductive electrode (12); a connection hole (14) for directly fixing the insulating plate (13) and the short form cover plate (5) together is arranged on the insulating plate (13); the center of the inductive electrode (12) is provided with an installation hole for fixing the inductive electrode (12) and the insulating plate (13) together; the center of the insulating plate (13) is provided with an electrical connector (6); one end of the electrical connector (6) is connected with the inductive electrode (12), and the other end is connected with a cable connector (4). In the built-in coupler for measuring partial discharge in the GIS, the insulating plate (13) and the inductive electrode (12) are separately fixed to the short form cover plate (5); the connection hole (14) is arranged on the insulating plate (13); the insulating plate (13)is directly fixed to the short form cover plate (5); the inductive electrode (12) is fixed to the insulating plate (13) and is electrically connected with the cable connector (4), thereby avoiding the contact between a metal bolt and the inductive electrode in the prior art when the metal bolt simultaneously goes through the insulating pad and the inductive electrode for fixing, solving the problem that the metal bolt is too close to the inductive electrode, and improving the detection sensitivity of a UHF coupler.

Classes IPC  ?

• G01R 31/12 - Test de la rigidité diélectrique ou de la tension disruptive

Abrégé

Provided is an apparatus for separating and cleaning sulfur hexafluoride gas. The cleaning apparatus comprises a first separator (22) and a second separator (58), wherein a gas inlet of the first separator (22) is connected to a sulfur hexafluoride gas source through a first compressor (8), a gas outlet of the first separator (22) is connected to a gas inlet of the second separator (58) through a buffer (21) and a second compressor (44), a ninth on/off valve (49) is disposed between the second compressor (44) and the second separator (58), a first on/off valve(19) is disposed between the gas outlet of the first separator (22) and the buffer (21), a liquid outlet of the first separator (22) is connected to a liquid reservoir (23) through a second on/off valve(36), a gas outlet of the liquid reservoir (23) is connected to a gas inlet of the buffer (21) through a third on/off valve (12), a gas outlet of the buffer (21) is connected to a gas inlet of the first compressor (8) through a fourth on/off valve(65), a gas outlet of the second separator (58) is in communication with the atmosphere through a depressurization valve (78) and a fifth on/off valve (59), and a liquid outlet of the second separator (58) is connected to a liquid inlet of the first separator (22) through a sixth on/off valve(38). Also provided is a method for cleaning sulfur hexafluoride based on the apparatus for separating and cleaning sulfur hexafluoride gas.

Classes IPC  ?

• C01B 17/45 - Composés contenant soufre et halogène avec ou sans oxygène
• F25J 3/08 - Séparation des impuretés gazeuses des gaz ou des mélanges gazeux
• F17C 5/06 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz comprimés
• B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols