The invention relates to a method for actuating an on-load tap-changer device (50) which comprises an on-load tap changer (1) which comprises a load transfer switch (3) with a second control unit (31), a motor (4) and a control device (6) with a first control unit (62), said method being characterised by the following steps: - in a step (40), a signal for switching the on-load tap-changer (1) is received by the first control unit (62) of the control device (6); - in a step (43), by means of the second control unit (31), a first temperature in or at the on-load tap-changer (1) is determined; - in a step (46), by means of the first control unit (62), one of a plurality of driving profiles (70, 80) for the motor (4) of the on-load tap-changer (1) is selected, said driving profile being based on the first temperature determined by the second control unit (31), on the basis of which a transfer is carried out; and - in a step (47), the transfer is carried out an monitored by means of the motor (5) and the control device (6) according to the selected driving profile (70, 80).
H01H 9/00 - Details of switching devices, not covered by groups
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
2.
THREE-PHASE TRANSFORMER ASSEMBLY WITH PRIMARY-SIDE TAP CHANGERS AND SECONDARY-SIDE RECTIFIERS
A device (1) for generating a controlled DC voltage or for generating a controlled AC voltage, comprising - a three-phase transformer assembly having - three high-voltage windings (3A, 3B, 3C), wherein each high-voltage winding comprises a main winding and a first tap winding, - three low-voltage windings (6A, 6B, 6C) which are inductively coupled to the respective high-voltage windings, - at least one on-load tap-changer (7A, 7B, 7C) for switching over between winding taps of the first, second and third tap winding (5A, 5B, 5C), - at least one semiconductor module (8A, 8B, 8C, 8D, 8E, 8F), the input side of which is electrically connected to the one or more low-voltage windings, wherein - the at least one semiconductor module is designed to generate a DC or AC voltage on the low-voltage side, and - the level of the voltage generated on the low-voltage side is adjusted by switching over the at least one on-load tap-changer on the high-voltage side.
H02M 5/12 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of voltage or current amplitude only
H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
H02M 7/10 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
H02P 13/06 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changingArrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by rearranging interconnections of windings
H02M 7/08 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel
3.
METHOD FOR PRODUCING A HIGH-VOLTAGE INSULATOR, AND HIGHVOLTAGE INSULATOR
A method produces a high-voltage insulator. The method includes: providing a substantially rotationally symmetrical insulating pipe; applying an insulating sheath to the insulating pipe; fastening at least one flange to at least one end of the insulating pipe; and applying at least one insulating strip circumferentially to the insulating pipe.
The invention presents and describes a method (100) for determining measurement variables in a mesh (7) of a low-voltage network (1), wherein the method (100) comprises providing a mesh current controller (9) in a mesh (7) of a low-voltage network (1), wherein the mesh current controller (9) comprises a controllable current and/or voltage source (29). The method (100) furthermore comprises determining at least one measurement variable of the mesh (7) by way of the mesh current controller (9) using the current and/or voltage source (27). The invention further presents and describes a mesh current controller (9) for controlling a voltage in a mesh (7), wherein the mesh current controller (9) comprises a controllable current and/or voltage source (29) and is set up to carry out the method (100) described here independently. The invention also presents and describes a system (27) for determining measurement variables in a mesh (7) of a low-voltage network (1) and for controlling a voltage in the mesh (7), wherein the system (27) comprises a mesh current controller (9) having an ascertaining unit (29) for determining measurement variables in the mesh (7) at the mesh current controller (9). The invention lastly presents and describes the use of a mesh current controller (9) in a mesh (7) of a low-voltage network (1), wherein no measurement points for determining measurement variables for the mesh current controller (9) are used in the mesh (7) outside of the mesh current controller (9).
H02J 3/16 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
5.
CONVERTER AND METHOD FOR BRINGING AN ACTUAL TRANSFORMATION RATIO INTO LINE WITH A TARGET TRANSFORMATION RATIO
A converter converts a DC input voltage into a DC output voltage. The converter includes: a regulator unit coupled to a power unit. The power unit has: a first converter stage, with two input connections; a second converter stage, which is connected to the first converter stage; and a third converter stage, which is connected to the second converter stages and has two output connections. The first, second, and third converter stages are adapted so that, when the DC input voltage is applied, the DC output voltage is supplied during operation of the converter. An actual transformation ratio of the power unit is defined: by a ratio between the DC input voltage and the DC output voltage, or by a ratio between an input current and an output current. The regulator unit acts on the power unit such that the actual transformation ratio is matched to a predetermined transformation ratio.
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
An on-load tap changer for a tapped transformer has a controller configured to actuate the on-load tap changer; and a storage unit. A method of operating the tap changer includes: carrying out a switching operation of the on-load tap changer by the controller; updating at least one data record stored in the storage unit depending on the switching operation carried out; checking on a basis of the updated data record whether a locking condition is met, by the controller; and blocking further switching operations based on determining that the locking condition is met, by the controller.
A method operates a regulating transformer for coupling two electrical energy grids using a system. The system includes: the regulating transformer having a first tap winding on a high-voltage side and a second tap winding on a low-voltage side; a first on-load tap changer that switches between winding taps of the first tap winding; a second on-load tap changer that switches between winding taps of the second tap winding; and a take-off lead connected to the low-voltage side. The method includes: detecting a first signal indicating an imminent transition from a first operating state to a second operating state on the low-voltage side, and actuating the second on-load tap changer such that the second on-load tap changer is switched from a first operating position to a second operating position, in which voltage present on the take-off lead assumes a minimum value.
H02M 5/10 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
09 - Scientific and electric apparatus and instruments
Goods & Services
Stepping switches, for use in relation to the following
goods: transformers [electricity] and coils for high-voltage
applications; equipment for the operation, control,
monitoring and checking of step switches for transformers
and coils for high-voltage applications.
9.
ON-LOAD TAP CHANGER COVER AND ON-LOAD TAP CHANGER DEVICE
The invention relates to an on-load tap-changer cover (1), comprising: - a cover element (1.1) having a first opening (1.5), and - a throttle element (30); wherein - the throttle element (30) is arranged in the first opening (1.5).
1JNJJ-1JJ), wherein a safety device (7) is connected in series between the selector (5) and the load switch (6), said safety device being designed to limit a short-circuit current occurring in the event of a fault in the on-load tap changer (1) and/or in the control winding (4).
The invention relates to a device (100) for analysing an insulating medium (101), comprising: an on-load tap-changer (2) with a diverter switch (10); a first line (40) and a second line (50); an access (13); wherein the diverter switch (10), the first line (40) and the second line (50) form an insulating medium circuit (5) in which the access (13) is arranged; the insulating medium (101) circulates in the insulating medium circuit (5) by means of thermal convection; the insulating medium (101) is analysed locally by a sensor device (16) arranged in the access (13) or externally after a removal of the insulating medium (101) via the access (13).
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Motors and drives (except for land vehicles); Drives and motors for machines; Electrical engines; Indexing drives; Speed changers; Housings for machines, drives, motors and engines; Engine housings; Control apparatus for machines, drives, motors and engines; Motor drives units for switchgear, tap changers, on-load tap changers and diverters; Generators. Technical and electric installations for heavy-current technology, light-current technology, high-voltage technology and extremely high-voltage technology; electricity supply systems; Mains networks for the transmission and distribution of electrical energy; Solar modules; Photovoltaic installations; Transformers [electricity]; Distribution transformers; Current transformers; Rectifiers; Inverters [electricity]; Inverter units; Direct Current-to-Direct Current converters; Converter stations; Three-phase switchgear; DC switchgear; Coils for heavy-current technology, light-current technology, high-voltage technology and extremely high-voltage technology; Condensers [capacitors]; Storage batteries; Diverters; stepping switches; On-load tap changers; Switching equipment; Switchboxes (electricity); Switchboxes [electricity]; Control panels [electricity]; Terminal boxes; Distribution boxes [electricity]; Tap boxes; Sensors; Electric, electronic, electro-optical, fibre-optical, acoustic, optical, photoelectric and piezoelectric sensors; Sensors for installation control and engine control; Buchholz relays; Computers, computer hardware, computer software, Interlaces for computers; Communication interface units; Apparatus for transmission of communication; Installations, equipment and computer software for conducting, distributing, switching, transforming, accumulating, influencing or controlling electricity; Computer software for influencing, operating, controlling, monitoring and testing drives, motors and engines, wind power installations, wind farms, generators, technical, chemical and electric installations, equipment and apparatus, electricity supply systems, mains, solar modules, photovoltaic installations, transformers and converters; Installations, equipment and computer software for influencing, operating, controlling, monitoring and testing electric installations, equipment and apparatus for high-voltage direct current transmission, converter stations, three-phase current switching stations, DC current switching stations, coils, capacitors, accumulators, apparatus for commutation, tap changers, sensors, measuring equipment, control equipment and monitoring equipment; Installations, equipment and computer software for influencing, operating, controlling, monitoring and testing installations, equipment and apparatus for earthing and discharging, and Faraday arrays, voltage generators, electric and electronic filters; Installations, equipment and computer software for guaranteeing and improving energy quality of public, private and industrial electricity supply systems and electricity networks; Installations, equipment and computer software for reactive power compensation using coils and/or condensers [capacitors] and for uninterruptible electrical power supply; Sensors and measuring devices for temperature, level, flow, speed, acceleration, voltage (mechanical), shaping, bending, expansion, shearing, torsion, pressure, humidity, surface vibrations, sound, vibrations, radiation (electromagnetic), light and microwaves; Sensors and measuring devices for current (electric), voltage (electric), energy (electric), power (electric), impedance (electric), power factor, phase shift, loss factor, partial discharge, the analysis of dissolved gases and the transformation ratio of transformers [electricity]; Computer hardware and computer software for controlling industrial processes; Oscilloscopes; Data loggers; Arc suppression coils; Electrodes; Installations, equipment and apparatus for grounding and discharging; Voltage generators; Test-field equipment; Electric and electronic filters; Laboratory furniture [specially adapted] in mobile containers; Laboratory furniture [specifically adapted]; Mobile and portable laboratory apparatus; Laboratory apparatus and laboratory instruments, not for medical purposes; Technical, electric, mechanical, scientific, biological, chemical and physical installations for laboratory use and for stationary, mobile and portable laboratories; Apparatus, instruments and laboratory furniture [specially adapted] for laboratory use and for stationary, mobile and portable laboratories. Installation, repair and Maintenance in relation to the following goods: Drive units, engines, Wind-power installations, Generators, Technical, chemical and electric installations, equipment and apparatus, electric power systems, power grids, Solar modules, Photovoltaic installations, transformers, Current transformers, Equipment and apparatus for high-voltage direct current transmission and current transformer stations, three-phase switchgear, DC switchgear, Flushing, Capacitors, Storage batteries, Switching apparatus, Tap changers, Sensors, Computer hardware, Laboratories, Measuring equipment, Control equipment, Monitoring equipment; Assembly, commissioning, testing, maintenance and repair of installations, equipment and apparatus for earthing and discharging, and Faraday arrays, voltage generators, electric and electronic filters and insulation arrays for electrical installations and equipment.
A switch unit for switching over an onload tap changer. The switch unit has an on-load tap changer with an actuating shaft that actuates a switch; and a drive system with a motor. The drive system is mechanically coupled to and configured to actuate the on-load tap changer. The drive system is configured such that, when the on-load tap changer is actuated, the drive system uses the actuating shaft as a store for kinetic energy in such a way that the actuating shaft is accelerated and the switch is actuated by the kinetic energy from the actuating shaft and additional energy provided by the motor.
09 - Scientific and electric apparatus and instruments
Goods & Services
Stepping switches, for use in relation to the following goods: transformers [electricity] and coils for high-voltage applications; equipment for the operation, control, monitoring and checking of step switches for transformers and coils for high-voltage applications.
15.
LOAD CHANGEOVER SWITCH FOR AN ON-LOAD TAP CHANGER AND A METHOD FOR PRODUCING A LOAD CHANGEOVER SWITCH
A diverter switch, which is for an on-load tap-changer, includes a housing; and a carrier. The carrier has elements configured to carry out a diverter switch operation. The carrier and the elements are at least partly encapsulated in the housing.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Visualisation and analysis of data relating to the
procurement, planning, operation, maintenance and
optimisation of commercial and industrial installations,
infrastructure equipment, in particular for energy
generation, transmission and distribution (term considered
too vague by the International Bureau - Rule 13 (2) (b) of
the Regulations); providing of hardware and software for the
collection, analysis and visualisation of data relating to
the procurement, planning, operation, maintenance and
optimisation of commercial and industrial installations,
infrastructure equipment, in particular for energy
generation, transmission and distribution (term considered
too vague by the International Bureau - Rule 13 (2) (b) of
the Regulations); web applications and technical consultancy
relating to the procurement, planning, operation,
maintenance and optimisation of commercial and industrial
installations, infrastructure equipment, in particular for
energy generation, transmission and distribution (term
considered too vague by the International Bureau - Rule 13
(2) (b) of the Regulations); technological services for
optimising the procurement, planning, operation and
maintenance of commercial and industrial installations,
infrastructure equipment, in particular for energy
generation, transmission and distribution; software as a
service (SaaS) services with software for the procurement,
planning, operation, maintenance and optimisation of
technical installations, in particular power transformers
and parts thereof.
17.
POWER FLOW CONTROL MODULE FOR USE IN A LOW-VOLTAGE LOCAL NETWORK
A power flow control module adjusts a voltage or current in a line of an electrical network. The module includes: two module connections connecting to the line, switching elements, an energy storage, and two energy connections connecting to an energy source. The two module connections electrically connect the module in series with the line. Two of the switching elements are connected in series and are connected in parallel with the energy storage. The module is interconnected such that it is at a potential of the line of the electrical network and is galvanically isolated from a ground potential or another line of the electrical network. The switching elements are designed to increase or reduce an amplitude of the voltage in the line in order to adjust the voltage, to shift a phase of the voltage, or to control a current flow in the line.
H02J 3/16 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
A measuring device that is for a current transformer includes a surrounding core; a measuring coil; and a reference connection. The measuring coil has a current conductor wound around the surrounding core that extends from a first conductor end to a second conductor end. The reference connection is electrically conductively connected to the current conductor centrally between the first conductor end and the second conductor end.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
An insulator for high-voltage applications has a rotationally symmetrical hollow tube made from fiberglass-reinforced epoxy resin; a silicone shielding attached to a periphery of the hollow tube; a base flange at a lower end of the hollow tube; a retainer, which is configured to retain an electrical operator, at an upper end of the hollow tube; and a plug, which is arranged inside the hollow tube and closes the front side of the upper end of the hollow tube and seals the hollow tube from the outside. The retainer has a rotationally symmetrical connection region. The insulator further has at the upper end of the hollow tube, a radially circumferential joining region which has no silicone shielding. The retainer is connectable to the insulator in such a way that the connection region of the retainer surrounds the joining region of the insulator in a form-fitting fashion.
The invention relates to an on-load tap-changer device (1), comprising: – a control device (4) and an on-load tap-changer (2); – wherein the control device (4) is designed and configured to establish a first data connection (21) to a first operating unit (20); – wherein the control device (4) is designed and configured to establish a second data connection (31) to a second operating unit (30); – wherein the control device (4) is designed and configured to grant access to the control device (4) and thus the on-load tap-changer (2) via the associated data connection (21, 31) to the operating units (20, 30); – wherein the control device (4) is designed and configured to prevent the second data connection (31) between the second operating unit (30) and the control device (4) as long as the first data connection (21) between the first operating unit (20) and the control device (4) exists. Figure 1
Device for monitoring an on-load tap changer The on-load tap changer comprises a plurality of contacts for switching between winding taps of a transformer. The device comprises a measuring unit which is designed to detect an acoustic signal of the on-load tap changer. The device also comprises an evaluation unit which is designed such that, from the acoustic signal representing a switching of the on-load tap changer, it determines characteristic variables for acoustic events in the on-load tap changer within a switching process. A wear model is also determined based on previously determined characteristic degradation patterns and the wear of at least one contact of the on-load tap changer is determined based on the characteristic variables and the wear model.
The invention illustrates and claims a combined earthing and protective device for a voltage and power converter of modular design for converting a primary AC voltage with one or more phases to a secondary voltage. The combined earthing and protective device comprises input contacts and output contacts which are conductively connected to voltage inputs and voltage outputs of individual modules of the converter. The input and output contacts which are connected to the same individual module are connected to a varistor which becomes conducting when the voltage dropped across the varistor exceeds a first threshold value. A nonconductive switching strip with bridge contacts can be moved from an operating position to an earthing position. In the earthing position, the bridge contacts connect the input and output contacts of the individual modules to one another and to an earth connection. In the operating position, the same input and output contacts are not connected by the bridge contacts and not to the earth connection either.
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M 7/483 - Converters with outputs that each can have more than two voltage levels
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
H01H 31/00 - Air-break switches for high tension without arc-extinguishing or arc-preventing means
H02B 5/01 - Earthing arrangements, e.g. earthing rods
H01H 3/46 - Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
H01C 7/10 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
H02H 9/06 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
The invention relates to a bellows protector (100, 200) for a vacuum interrupter (10) with an external bellows (20) for low, medium or high voltages, wherein the bellows protector (100, 200) has at least: - a first region (110), which is configured to be tapered and is furthermore configured to receive a moving contact rod (30) in such a manner that the moving contact rod (30) can be guided out of the bellows protector (100, 200) from an inner side (101) of the bellows protector (100, 200) onto a second side (102) outside the bellows protector, wherein the tapered first region (110) of the bellows protector (100, 200) is configured to lie against the moving contact rod (30) in such a manner that the moving contact rod (30) is guided through the bellows protector (100, 200), - a second region (120), which adjoins the first region (110), wherein the second region (120) is enlarged relative to the first region (110) in such a manner that the bellows (30) to be protected can be received in the second region (120), and - a holding region (130), wherein the holding region is configured to fasten the bellows protector (100, 200) on or to the vacuum interrupter (10) in such a manner that the bellows protector (100, 200) forms a guide for the moving contact rod (30).
A switch can be used for an on-load tap changer. The switch includes: fixed contacts, including a first fixed contact and a second fixed contact; and a moving contact with a first attraction element. The moving contact is movable from a first position into a second position via the first attraction element and a second attraction element, which is arranged outside the switch. The moving contact is configured such that, in the first position, the moving contact contacts neither or only one of the fixed contacts and, in the second position, the moving contact contacts both of the fixed contacts.
H01H 9/00 - Details of switching devices, not covered by groups
H01H 1/54 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
26.
SWITCH UNIT FOR A STEP TRANSFORMER, AND STEP TRANSFORMER HAVING A SWITCH UNIT
A switch unit is for a step transformer. The switch unit has: ]a controller; a motor; and an on-load tap-changer. The controller controls the motor, which actuates the on-load tap-changer. The controller draws energy, required for actuating and controlling the motor, directly from a low voltage winding of the step transformer.
A switch assembly has an on-load tap changer and a drive system for the on-load tap changer. The drive system has: a stepper motor having a motor shaft, the motor shaft being connected to and configured to actuate the on-load tap changer; a feedback system, which is configured: to determine at least one value for a position of the motor shaft; and to generate a feedback signal based on the at least one value; and a control device, which is configured to influence the operation of the switch assembly depending on the feedback signal.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Software as a service (SAAS) services featuring software for analyzing and visualizing data relating to the procurement, planning, operation, maintenance and optimization of commercial and industrial energy installations and infrastructure equipment in the field of energy generation, transmission and distribution; software as a service (SAAS) services featuring software for analyzing and visualizing data relating to the procurement, planning, operation, maintenance and optimization of power transformers in the field of energy generation, transmission and distribution; technological consulting services in the field of energy generation, transmission and distribution for the purpose of operating, maintaining and optimizing commercial and industrial energy installations and infrastructure equipment; technological consulting services in the field of energy generation, transmission and distribution for the purpose of operating, maintaining and optimizing power transformers
An adapter device transmits tap positions of an on-load tap-changer from a control device to a secondary device. The adapter device has: an input configured to receive at least one tap position from the control device of the on-load tap-changer; an output configured to output the tap position of the on-load tap-changer to the secondary device; and at least one resistor and at least one switch, which are connected in parallel with one another. The adapter devices is configured such that: depending on the tap position of the on-load tap-changer, the at least one switch is actuated by the control device and the at least one resistor is connected or disconnected, and the output tap position of the on-load tap-changer at the output corresponds to the resistance value of the at least one resistor that has been connected or disconnected.
A modular switching cell of a high voltage direct current power converter has a modular switching cell that includes a base module, which has: a first switching unit; a second switching unit; a first capacitor; and a second capacitor. The first switching unit, the second switching unit, the first capacitor, and the second capacitor are mounted on a chassis. The base module is configured to receive at least three different busbar sets, each of the busbar sets having a plurality of busbars for interconnecting the first switching unit, the second switching unit, the first capacitor, and the second capacitor to form one of: two parallel half bridge circuits between a first cell terminal and a second cell terminal; two serial half bridge circuits between the first cell terminal and the second cell terminal; or a full bridge circuit between the first cell terminal and the second cell terminal.
H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
H01G 2/04 - Mountings specially adapted for mounting on a chassis
H01G 9/26 - Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices with each other
H02M 7/483 - Converters with outputs that each can have more than two voltage levels
A vacuum interrupter arrangement may be used in a tap changer. The vacuum interrupter arrangement has a vacuum interrupter; a metal shield configured to shield against external magnetic fields, the metal shield having a hollow cylindrical design and being arranged around at least a part of a cylindrical outer surface of the vacuum interrupter; and a holder, which is arranged on the outside of the metal shield and the vacuum interrupter, and which surrounds the metal shield and the vacuum interrupter at least partially coaxially. The holder has a plurality of holding elements which hold the metal shield in position relative to the vacuum interrupter.
An on-load tap-changer provides uninterrupted diverter switch operation between different winding taps of a tap-changing transformer. The on-load tap-changer includes: a flange module; and a union nut. The on-load tap-changer is configured to be fastened to the tap-changing transformer by the union nut and the flange module.
H01H 9/00 - Details of switching devices, not covered by groups
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
33.
ON-LOAD TAP CHANGER AND METHOD FOR ACTUATING AN ON-LOAD TAP CHANGER
An on-load tap-changer uninterruptedly switches between winding taps of a tap-changing transformer. The on-load tap-changer has: a diverter switch that switches over from a first to a second fixed contact; and a selector that powerlessly preselects the fixed contacts and has a first and second selector arm that are actuated independently and contact each of the fixed contacts. The diverter switch has: a main path with a mechanical switching element that connects the first selector arm to a load take-off lead; a first auxiliary path with a first semiconductor switching element that is parallel to the main path and connects the first selector arm to the load take-off lead, and a second auxiliary path with a second semiconductor switching element that connect the second selector arm to the load take-off lead.
The invention relates to an electrical operating means (1) comprising: - at least one control winding (3), which has winding taps (n, n+1), and at least one partial winding (4, 5), - a tap changer (6) for changing a transformation ratio, an impedance, or a voltage of the electrical operating means (1), which voltage is used for excitation, wherein - the tap changer (6) comprises a first module (7) for connecting the winding taps (n, n+1) of the control winding (3) and a second module (8) for additively connecting, subtractively connecting, or by-passing the at least one partial winding (4, 5), and - the second module (8) comprises at least one sub-module (9), which has semiconductor switching elements, and a bypass switch (10).
H01H 9/00 - Details of switching devices, not covered by groups
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
An on-load tap-changer includes: a main path with a first connection; and an auxiliary path with a second connection. One module is configured be connected to each of the first and second connections.
The invention relates to a method for actuating an on-load tap-changer (4) by means of a drive (3), a sensor (5), and a controller (2), said method having the following steps: - receiving a switch command to actuate the on-load tap-changer (4) by means of the controller (2); - detecting a current curve (20) via the sensor (5); - determining a plurality of consecutive points in time (T1, T2, T3, Tx) for zero-current crossings of the current curve (20) by means of the controller (2); - determining a plurality of intervals (A1, A2, Ax) between the points in time (T1, T2, T3, Tx) of the zero-current crossings by means of the controller (2); - deriving a characteristic (K) from the plurality of intervals (A1, A2, Ax) by means of the controller (2); - comparing the characteristic (K) with a threshold (G) by means of the controller (2); - terminating or pausing the actuation by means of the controller (2) if the characteristic (K) exceeds the threshold (G); and - carrying out the actuation if the characteristic (K) meets or falls below the threshold (G) by controlling the drive (3) by means of the controller (2).
H01H 9/00 - Details of switching devices, not covered by groups
H01H 9/56 - Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle
37.
SENSOR SYSTEM FOR DETERMINING THE ARC BURNING DURATION, AND LOAD STAGE SWITCHING APPARATUS
The invention relates to a sensor system (20) for determining the arc burning duration in a vacuum interruptor (4), comprising - a measurement apparatus (5) having a receiver (16) and a measurement device (18); - a sensor unit (10) having a voltage divider (11), an energy generator (12), an energy conversion unit (13), an evaluation unit (14) and an emitter (15); wherein - the sensor unit (10) can be connected to a first contact (4.1) and a second contact (4.2) of a vacuum interruptor (4); - the sensor unit (10) is connected via a signal transmitter (17) to the measurement apparatus (5).
The invention relates to a method for actuating an on-load tap-changer (4) by means of a drive (3), a sensor (5), and a controller (2), wherein the controller (2) receives a switch command to actuate the on-load tap-changer (4); - a current curve is detected via the sensor (5); a start time (T0) at which the actuation of the on-load tap-changer (4) would be started is determined in the current curve; - a temporal offset (TV) is added to the start time (T0), and the point in time (TB) at which the actuation would potentially be started is determined therefrom; - the point in time (TG) of the next zero-current crossing after the point in time (TB) at which the actuation would potentially be started is determined; - the temporal difference (TD) between the point in time (TB) at which the actuation would potentially be started and the point in time (TG) of the next zero-current crossing is determined; - the temporal difference (TD) is added to the start time (T0) in order to determine a new start time (T1) for the actuation therefrom; and - the actuation of the on-load tap-changer (4) is started at the new start time (T1) by means of the the drive (3).
H01H 9/00 - Details of switching devices, not covered by groups
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
39.
METHOD FOR ACTUATING AN ON-LOAD TAP CHANGER, AND ON-LOAD TAP CHANGER DEVICE
The invention relates to a method for actuating an on-load tap-changer (4) by means of a drive (3), a sensor (5), and a controller (2), wherein - the controller (2) receives a switch command to actuate the on-load tap-changer (4); - a current curve is detected via the sensor (5); a start time (T0) at which the actuation of the on-load tap-changer (4) would be started is determined in the current curve; - a temporal offset (TV) is added to the start time (T0), and the time (TB) at which the actuation would potentially be started is determined therefrom; - the point in time (TG) of the next zero-current crossing after the point in time (TB) at which the actuation would potentially be started is determined; - the temporal difference (TD) between the point in time (TB) at which the actuation would potentially be started and the point in time (TG) of the next zero-current crossing is determined; - the temporal difference (TD) is added to the start time (T0) in order to determine a new start time (T1) for the actuation therefrom; and - the actuation of the on-load tap-changer (4) is started at the new start time (T1) by means of the the drive (3).
H01H 9/00 - Details of switching devices, not covered by groups
H01H 9/56 - Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle
40.
ON-LOAD TAP CHANGER AND METHOD FOR ACTUATING AN ON-LOAD TAP CHANGER
An on-load tap-changer switches, without interruption, between winding taps of a tapped transformer. The on-load tap-changer includes fixed contacts, which include a first fixed contact, which is configured to connect to a first winding tap of the tapped transformer; and a second fixed contact, which is configured to connect to a second winding tap of the tapped transformer. The on-load tap-changer also includes a first selector arm, which is configured such that it can contact each of the fixed contacts; a second selector arm, which is configured such that it can contact each of the fixed contacts; and a diverter switch configured to perform a switch from the first fixed contact to the second fixed contact of the on-load tap-changer; a connection contact arranged additionally to the fixed contacts; and an auxiliary contact, which configured to selectively contact the connection contact or one of the fixed contacts.
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
H01H 9/00 - Details of switching devices, not covered by groups
09 - Scientific and electric apparatus and instruments
Goods & Services
stepping switches, for use in relation to the following goods: Transformers [electricity] and reels; Equipment for the operation, control, monitoring and checking of step switches for transformers and coils.
42.
DEVICE AND METHOD FOR OPTICALLY DETECTING A SUBSTANCE IN HIGH-VOLTAGE APPARATUSES FILLED WITH INSULATING MEDIUM
A device (1) for detecting a substance (4) in an insulating medium budget (2), in particular in high-voltage apparatuses filled with insulating medium, comprises • - a first unit (10) for coupling in a light signal (8); • - a second unit (20) for coupling out the light signal (8); • - an optical waveguide (15) which is arranged in the insulating medium budget (2) and serves to transmit the light signal (8); • - an evaluation device (3) for evaluating the light signal (8) following a transmission of the latter by the optical waveguide (15); wherein • - a substrate (50) made of a metal-organic framework compound is applied to at least one portion (40, 41, 42) of the optical waveguide (15) and the substrate (50) interacts with the substance (4) in the insulating medium budget (2) such that the coupled-in light signal (8) is altered during the transmission of the light signal (8) through the optical waveguide (15).
G01N 21/77 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
Multi-level converter (1), comprising - a capacitor (2); - a resistor (3); - a first switch (4) actuated by a first motor drive (40); - a second switch (5) actuated by a second motor drive (50); wherein - in a closed state, the first switch connects the capacitor (2) to the resistor (3) and short-circuits the same; in the closed state, the second switch (5) connects the capacitor (2) to an earthing potential (20).
A device (1) for adapting a phase angle of a voltage in a transmission line (2) of a power supply system comprising: - a phase shifter transformer (3), which has an on-load tap changer (13) and is arranged in the transmission line (2) and is designed to adapt a phase angle of a voltage by means of the on-load tap changer (13), - an infeed module (4), which is arranged in series with the phase shifter transformer (3) in the transmission line (2) and is designed to adapt a phase angle of a voltage, - a control unit (5), wherein - the control unit (5) is designed to determine a requirement for adapting the phase angle between an input voltage and an output voltage of the device (1) within a predefined time period, - to adapt the phase angle by means of the infeed module (4) if - the demanded adaptation of the phase angle comprises an angular degree that goes beyond the control range of the on-load tap changer (13), and/or - the predefined time period for the adaptation of the phase angle is less than a time period within which the phase angle can be adapted by means of the on-load tap changer (13), and/or - the demanded adaptation of the phase angle comprises an angular degree that is less than a phase angle that can be adapted by means of the on-load tap changer (13).
The invention relates to a method for changing a transformation ratio, an impedance, or a voltage of an electrical operating means (14), which voltage is used for excitation, the electrical operating means (14) comprising: - at least one control winding (3), which has winding taps (n, n+1), and at least one partial winding (4, 5), - a tap changer (6) for changing the transformation ratio, the impedance, or the voltage of the electrical operating means (14), which voltage is used for excitation, wherein - the tap changer (6) comprises a first module (7) for connecting the winding taps (n, n+1) of the control winding (3) and a second module (8) having semiconductor switching elements for additively connecting, subtractively connecting, or by-passing the at least one partial winding (4, 5), the method comprising the following steps: - receiving a request to change the transformation ratio, the impedance or the voltage of the electrical operating means (14), which voltage is used for excitation; - testing at least one relevant characteristic variable; and - changing the transformation ratio, the impedance, or the voltage of the electrical operating means (14), which voltage is used for excitation, either by means of the first module (7) or by means of the second module (8) depending on the test of the at least one relevant characteristic variable.
H02J 3/12 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
G05F 1/16 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
46.
METHOD FOR ADAPTING A TARGET VOLTAGE VALUE FOR CONTROLLING A TAP-CHANGING TRANSFORMER, AND DEVICE FOR ADAPTING A TARGET VOLTAGE VALUE FOR CONTROLLING A TAP-CHANGING TRANSFORMER
The invention relates to a method for adapting a target voltage value (Usoll) for controlling the voltage of a tap-changing transformer (200) by means of an on-load tap changer (10), the method comprising the following steps: determining a reverse power flow on an low-voltage side () of the tap-changing transformer (200) by measuring a current (I20) and a voltage (U20); actuating the on-load tap changer (10) from a current tap position n to another tap position (n-1, n+1) and measuring the voltage (U21, U19) of the current (121, 119) in the other tap position (n-1, n+1); determining a value m from powers (L19, L20, L21) of the different tap position (n, n-1, n+1); and using the determined value m as a slope for a first section of a straight line of the target voltage value (Usoll).
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
G05F 1/147 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices with motor driven tap switch
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
H02P 13/06 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changingArrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by rearranging interconnections of windings
The invention relates to an on-load tap changer (1) for uninterrupted load switching, comprising: - a first module (20) having a first actuation element (22); - a second module (40) having a second actuation element (42); - an input shaft (10); wherein, - the first actuation element (22) and the second actuation element (42) are arranged on the input shaft (10) and are driven by same; - the first module (20) is actuated by the first actuation element (22); - the second module (40) is actuated by the second actuation element (42); - the first actuation element (22) and the second actuation element (42) are designed such that the second module (40) is actuated at a different time from the first module (20).
An on-load tap changer module for an on-load tap changer, including a carrier, a diverter switch with a vacuum interrupter and a bridge switch, a selector, a change-over selector, and a drive module, wherein the diverter switch, the selector, and the change-over selector are arranged on the carrier and are activated centrally by the drive module.
A model of a power transformer describes a transfer behavior for input data into output data as a function of model parameters. In successive time windows, measurement dataset is received from first and second sensors of the power transformer. The model parameters are optimized by executing, for each of the time windows, the following group of steps a) to c), repeatedly: a) determining the output of the model using the input data defined by first sensor data, for the first execution of predefined parameters are used; b) determining a target value, which includes at least one squared error, weighted by a first weighting factor, the squared error is between the second sensor data from the measurement dataset assigned to the given time window and a previously determined output data, and c) determining optimization parameters as new model parameters based on the target value.
The invention relates to a method for the state analysis of an on-load tap changer (2), wherein the on-load tap changer (2) has at least one vacuum switching tube (3) for switching between winding taps of a transformer (4), the method comprising the following steps: - detecting real-time data with respect to the on-load tap changer (2), - determining parameters specific to the tap changer, - determining at least one characteristic value for determining a state index of the on-load tap changer (2) on the basis of the real-time data and the parameters specific to the tap changer, wherein - the state index encompasses a period of time until a due maintenance and/or a remaining service life and/or a remaining number of switching operations of the on-load tap changer (2).
A switching module is for an on-load tap-changer. The switching module has: a plate having a first side and a second side that is opposite the first side; a vacuum interrupter; and a bridge switch. The vacuum interrupter is on the first side, and the bridge switch, which is directly behind the vacuum interrupter, is on the second side.
The invention relates to an on-load tap changer (1) for uninterrupted load transfer between different winding taps of a tap-changing transformer (30), comprising - a load diverter (43) and a selector (50); wherein - the selector (50) has a contact support (60) with a number of fixed contacts (61); - the selector (50) has a planetary gearing (59) with a first ring gear (53), a first planet gear (52) and a first sun gear (51); and - the first ring gear (53) has a first selector contact (71) for contacting the fixed contacts (61).
A device receives a measurement signal, and assigns samples thereof to signal window formed from a portion of a sequence of the samples. During initialization, signal windows are determined as initialization windows, and therefrom noise windows are determined and analyzed using an Xth-order model. Initial coefficient tuples are assigned to each noise window, and noise tuples are ascertained therefrom. During examination, signal windows are determined as measurement windows, which use the Xth-order model. The associated coefficients that form a measurement tuple assigned to each of the measurement windows are ascertained, as is a distance of the associated measurement tuple from the noise tuple for each of the measurement windows. The measurement windows whose associated measurement tuple is at a respective distance from the noise tuple that is greater than a limit value are determined as error signal windows representing a signal error.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Visualisation and analysis of data relating to the procurement, planning, operation, maintenance and optimisation of commercial and industrial installations, infrastructure equipment, in particular for energy generation, transmission and distribution; Providing of hardware and software for the collection, analysis and visualisation of data relating to the procurement, planning, operation, maintenance and optimisation of commercial and industrial installations, infrastructure equipment, in particular for energy generation, transmission and distribution; Web applications and technical consultancy relating to the procurement, planning, operation, maintenance and optimisation of commercial and industrial installations, infrastructure equipment, in particular for energy generation, transmission and distribution; Technological services for optimising the procurement, planning, operation and maintenance of commercial and industrial installations, infrastructure equipment, in particular for energy generation, transmission and distribution; Software as a service (SAAS) services with software for the procurement, planning, operation, maintenance and optimisation of technical installations, in particular power transformers and parts thereof.
The invention relates to a converter (1) comprising a control unit, which is adapted to selectively operate in a mode in which the control unit provides control signals to switching elements (21) to repeatedly switch each of a number of cells (5) between first and second states in such a manner that the electric current in each of a number of arms (3) is adjusted to match a respective predefined current reference value and that a number of capacitors (23) are partially discharged until the electric voltage each capacitor (23) provides is above a predefined minimum voltage reference value and below a predefined maximum voltage reference value. The invention further relates to a method for controlling the converter (1).
A switching state of a switching arrangement of an electrical distribution arrangement is optimized. In each switching state, an outgoing circuit of the distribution arrangement is connected to a supply by the switching arrangement via a component. Each state differs from others in that the outgoing circuit is connected to the supply via another component. The switching arrangement has enough switching states that each outgoing circuit is connectable to a supply via two different components. An outgoing circuit is presented based on: operating parameters of the components, a switching state, outgoing loads; environmental parameters of the electrical components, forecasted environmental parameters, and forecasted outgoing loads. Forecasted operating parameters are simulated to compare future operating parameters with limit values. Based on likely exceeding limit values in the future, an alternative switching state is suggested such that limit values are not exceeded.
A characteristic variable represents a thermal load on an electrical device. A first mathematical model determines the characteristic variable for a determination time based on an ambient temperature of the electrical device and a value of a thermal operating parameter of the electrical device. The first mathematical model describes a dependency of thermal operating parameters of the electrical device at a calculation time based on the ambient temperature of the electrical device and on an electrical load factor. The characteristic variable is determined for the determination time as the equivalent electrical load factor of the electrical device, for which the first mathematical model, taking into account the ambient temperature at the determination time, predicts a value of the thermal operating parameter of the electrical device determined for the determination time.
Each cell of a cell assembly for a converter may include: first and second terminals, switching elements, and a capacitor. The cells are connected in series such that, for each pair of neighbouring cells, the first terminal of a first cell is connected to the second terminal of a second cell. Each cell includes a bypass connected to the first and second terminals that bypasses switching elements in a short circuit configuration and does not bypass the switching elements in an open circuit configuration. Each cell has a cell controller providing control signals to the sw itching elements to connect the capacitor to the first and second terminals or to bypass the capacitor. The cell controller provides a control signal to the bypass unit of neighbouring cells to change its configuration between the short circuit and open circuit configurations.
H02M 7/483 - Converters with outputs that each can have more than two voltage levels
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
The invention relates to a method for analysing the state of an electrical operating means (2) of a system (1) for supplying energy, wherein the electrical operating means (2) has a housing (3) comprising an insulating liquid (4), and the method comprises the following steps: - recording measurement values which represent gases dissolved in the insulating liquid (4); - determining operating means parameters; - adapting the measurement values to a standard evaluation basis using the operating means parameters; - carrying out a state evaluation of the electrical operating means (2) on the basis of the adapted measurement values using at least one machine learning process; - determining at least one state of the electrical operating means (2); - outputting the at least one state.
A device for determining an error probability value for a transformer component, including a signal input interface, a processor unit, and a storage unit, wherein the signal input interface is configured for direct or indirect coupling to a measurement system for a power transformer, the measurement system having multiple sensors that are each designed to record a physical and/or chemical property of the power transformer, the power transformer having multiple transformer components, and each sensor being coupled to at least one of the transformer components of the power transformer by way of a respective related direct or indirect connection, wherein the physical and/or chemical property of the power transformer recorded by the respective sensor is influenced by at least one of the transformer components, wherein the signal input interface is configured to receive a status signal of the measurement system, the status signal representing multiple, different status variables.
A system includes: a sensor configured to detect electrical signals of a cable section for transmitting electrical energy; a processor; a data memory; and a signal interface. The data memory stores a set of curves with an associated distance to the sensor and representing a pulse response of an electrical pulse predetermined by a cable model as a result of a modeled partial discharge at the associate distance. The sensor detects a discharge signal caused by an actual partial discharge on the cable section, and transmits a measurement signal to the processor. Based on the first measurement signal, the processor determines which among the curves in the set correlates best with the first discharge signal, as the first discharge curve. The processor determines a sensor distance between the actual partial discharge and the sensor based on the distance associated with the discharge curve. The signal interface transmits the sensor distance.
The invention relates to a method for producing a high-voltage insulator (1), comprising the steps of: - providing an essentially rotationally symmetrical insulating tube (2), - applying an insulating jacket (3) onto the insulating tube (2), - fastening at least one flange (4) to at least one end of the insulating tube (2), - applying at least one insulating tape (5) circumferentially on the insulating tube (2). The invention further relates to a high-voltage insulator.
An on-load tap-changer for switching, without interruption, between winding taps of a tap-changing transformer, including a diverter switch for performing a switch-over from a first to a second fixed contact, a selector for preselecting, without power, the first and second fixed contact, and a first controller, wherein the diverter switch has a plurality of semiconductor and mechanical switching elements, the selector has a first and second selector arm, which are actuatable independently of one another and can contact each of the fixed contacts, and the first controller is configured to trigger a switch command and to actuate the first and second selector arm and the plurality of mechanical switching elements by a motor drive, wherein the on-load tap changer includes a second controller to actuate the plurality of semiconductor switching elements, and wherein during the switch-over the first controller actuates the motor drive depending on the second controller.
The invention relates to a converter (1) for converting an input direct voltage into an output direct voltage, comprising: - a power unit (3), which has a first converter stage (7) having two input terminals (13), a second converter stage (9) connected to the first converter stage (7), and a third converter stage (11) connected to the second converter stage (9) and having two output terminals (15), wherein the first converter stage (7), the second converter stage (9), and the third converter stage (11) are designed such that, during operation of the converter (1), when the input direct voltage is applied to the two input terminals (13) the output direct voltage is provided at the two output terminals (15), and wherein an actual transformation ratio of the power unit (3) is defined by a ratio of the input direct voltage at the two input terminals (13) and the output direct voltage at the two output terminals (15) or by a ratio of the input current intensity at the two input terminals (13) and the output current intensity at the two output terminals (15); and - a controller unit (5), which is coupled to the power unit (3); wherein the controller unit (5) is designed to influence the power unit (3) in such a way that the actual transformation ratio is brought into line with a specified target transformation ratio. The invention also relates to a corresponding method.
H02M 3/00 - Conversion of DC power input into DC power output
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
65.
ANALYZING AN OPERATION OF A POWER SEMICONDUCTOR DEVICE
A method analyzes an operation of a power semiconductor device. The method includes: providing a set of reference voltages of the device and a set of corresponding reference currents; measuring, within a predetermined time-interval, Nframe on-state voltages and Nframe corresponding on-state currents of the device to obtain Nframe measurement points, Nframe being an integer number equal to or greater than 2; adapting the set of reference voltages by carrying out a least squares fit to the Nframe measurement points; and using the adapted set of reference voltages to analyze the operation of the power semiconductor device.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric apparatus and instruments for electrical engineering, namely for conducting, converting, storage, regulating and controlling; The aforesaid apparatus and instruments, for use in the following fields: Operating, controlling, regulating, monitoring, testing and inspecting the operating status and operating ability and physical and electric parameters, in relation to the following goods: Transformers [electricity], Switching equipment, Colling installations for transformers, Switches, electric, Dehumidifiers for transformers, transformer bushings, step switches for transformers, motor drives for actuating such step switches; Electric apparatus and instruments for weak-current engineering, namely for measuring, computing and control engineering; The aforesaid apparatus and instruments and Computing programs, for use in the following fields: Operating, controlling, regulating, monitoring, testing and inspecting the operating status and operating ability and physical and electric parameters, in relation to the following goods: Transformers [electricity], Switching equipment, Cooling installations for transformers, dehumidifiers for transformers, step switches for transformers and motor drives for actuating such step switches.
67.
DEVICE AND METHOD FOR MONITORING AN ON-LOAD TAP CHANGER
A device (1) for monitoring an on-load tap changer (2), comprising: - a motor drive (4); - a monitoring unit (11); and - a sensor (6) for acquiring an acoustic signal; wherein - the monitoring unit (11) determines a torque curve in the on-load tap changer (2) on the basis of a torque curve on the motor drive (4) and the acoustic signal of the sensor (6).
The invention relates to a load changeover switch (2) for an on-load tap changer (1), comprising: - a housing (21); - a carrier (24) with elements (32) for carrying out a load changeover; wherein - the carrier (24) and the elements (32) are at least partially embedded in the housing (21).
An apparatus detects gas in a high-voltage device, which is filled with an insulating medium. The apparatus has: an inlet configured for introducing a carrier gas; an outlet configured for discharging the carrier gas; at least one gas sensor configured to detect a gas; a first pump configured to convey the carrier gas in the apparatus; a membrane which comprises at least one semipermeable basic material, which is at least partially surrounded by the insulating medium, and which is arranged to be at least partially subjected to an incident flow of the carrier gas; a second pump configured to convey the carrier gas into the apparatus and out of the apparatus; and a separating column, which is arranged before the gas sensor. The gas sensor is a sensor array.
An on-load tap-changer of a tap-changing transformer has a switch. The switch has: a take-off contact; a primary fixed contact; and a contact unit. The contact unit has a moving contact, a first arcing contact and a second arcing contact. These contacts are pivotable about a pivot axis during a switchover process such that the contacts assume a first position, in which they make contact with the take-off contact and the primary fixed contact, and a second position, in which they are separated from the take-off contact and the primary fixed contact. The second arcing contact assumes the first position before the first arcing contact when switching over from the second position to the first position and leaves the first position after the first arcing contact when switching over from the first position to the second position.
Method for operating an on-load tap changer (2) for tapped transformers (1), wherein the on-load tap changer (2) has a control unit (3) for actuating the on-load tap changer (2) and a storage unit (4), and the method comprises the following steps of: carrying out an operation of switching the on-load tap changer (2) by means of the control unit (3), updating at least one data record stored in the storage unit (4) on the basis of the switching operation which has been carried out, taking the updated data record as a basis for checking by means of the control unit (3) whether a locking condition has been met, blocking by means of the control unit (3) further switching operations if the locking condition has been met.
An on-load tap changer is for uninterrupted diverter switch operation. The on-load tap changer includes: a first module having a first module shaft; and a second module having a second module shaft. The first module shaft is configured to actuate the first module. The second module shaft is configured to actuate the second module. The first module shaft and the second module shaft are mechanically coupled to one another in such a way that the first module shaft is configured to drive the second module shaft and the second module is configured to be actuated with a time delay with respect to the first module.
The invention relates to a switch unit (1), comprising: - an on-load tap changer (17) having an actuating shaft (20) which actuates a switching means (21), and a drive system (3) having a motor (12); the drive system (3) being mechanically coupled to the on-load tap changer (17) and actuating it and, during actuation of the on-load tap changer (17), the drive system (3) using the actuating shaft (20) as a storage means for kinetic energy in such a way that the actuating shaft (20) is accelerated and the switching means (21) is actuated by means of kinetic energy from the actuating shaft (20) and additional energy which is provided by the motor (12).
09 - Scientific and electric apparatus and instruments
Goods & Services
Transformers [electricity], switching equipment, stepping
switches, on-load tap changers, reactors, capacitances, arc
suppression coils, electrodes, earthing or discharge
devices, cables, overhead lines, switch gear, sensors;
electric apparatus and instruments and computer programs for
the monitoring, testing and control of transformers, circuit
breakers, reactors, drives, wind power installations,
generators, cables, overhead lines, switch gears, filter
circuits, compensating reactors, electric switches,
technical, chemical and electric installations, furnishings
and apparatus; measuring assemblies, faraday assemblies,
electric power supply units, voltage regulators, test lab
devices and equipment, AC test systems, high current test
systems, DC test system, surge voltage and surge current
test systems, high voltage dividers, electric filters;
sensors and measuring devices for temperature, level, flow,
speed, acceleration, voltage (mechanical), shaping, bending,
expansion, shearing, torsion, pressure, humidity, surface
vibrations, sound, vibrations, radiation (electromagnetic),
light and microwaves; sensors and measuring devices for
current (electric), voltage (electric), energy (electric),
power (electric), impedance (electric), power factor, phase
shift, loss factor, partial discharge, the analysis of
dissolved gases and the transformation ratio of transformers
[electricity]; oscilloscopes, data loggers, voltage
regulators, electrical filters and electronic filters,
rogowski coils, high frequency current transformers, uhf
sensors, coupling capacitors, optical fibre sensors, sensors
and installations for measuring small or large signals;
computer, computer hardware, computer software, cloud and
cloud applications, interfaces for computers, communication
interface units, apparatus for transmission of
communications; equipment and computer software for
conducting, distributing, switching, transforming, storing,
influencing, monitoring and controlling electricity;
computer software for influencing, pressing, controlling,
monitoring, assessing and examining drives, motors, wind
power installations, wind farms, generators, cables, switch
gears, overhead lines, filter circuits, compensating
reactors, electric switches, technical, chemical and
electric installations, furnishings and apparatus.
An on-load tap changer uninterruptedly switches between winding taps of a tap-changing transformer. The on-load tap changer includes: at least one selector configured to preselect, in a powerless manner, a selected winding tap of the winding taps; at least one diverter switch configured to actually switch loads from a previous winding tap to a preselected winding tap of the winding taps; at least one toothed gearing comprising a first gearwheel and a second gearwheel, the first gearwheel being assigned to the selector, and the second gearwheel being assigned to the diverter switch; and a drive shaft, which is configured to be actuated by a motor drive. The first gearwheel and the second gearwheel are directly interconnected mechanically in such a way that the first gearwheel and the second gearwheel are simultaneously actuatable. The drive shaft is configured to drive either the first gearwheel or the second gearwheel.
A selector can be used in an on-load tap changer. The selector includes: a tap selector comprising at least one selector arm; and a change-over selector. The change-over selector is configured to be actuated via at least one of the selector arms of the tap selector.
H01H 9/00 - Details of switching devices, not covered by groups
H01H 1/22 - Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
77.
ON-LOAD TAP CHANGER AND TAP-CHANGING TRANSFORMER HAVING AN ON-LOAD TAP CHANGER
An on-load tap-changer uninterruptedly operates a diverter switch between different winding taps of a tap-changing transformer. The on-load tap-changer has an on-load tap-changer plate; a selector; and a diverter switch. The selector and the diverter switch are mounted on the on-load tap-changer plate.
H01H 9/00 - Details of switching devices, not covered by groups
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
78.
METHOD FOR MONITORING AN ELECTRICAL OR ELECTRONIC SYSTEM AND A FURTHER SYSTEM CONFIGURED TO PERFORM THE METHOD
The present invention relates to a method and a corresponding system for monitoring an electrical or electronic system, wherein an preferably not measurable characteristic variable of the electrical or electronic system is estimated with an adjusted thermal and/or electrical model of the electrical or electronic system.
A method for operating a control transformer (10) for coupling two electrical energy networks (2, 3), with a system (1) comprising - a control transformer (10) having at least one first control winding (12) on a high-voltage side (13) and having at least one second control winding (14) on a low-voltage side (15), – a first on-load tap changer (16) for switching between at least two winding taps (N1,...NJ,..., NN) of the first control winding (12), – a second on-load tap changer (17) for switching between at least two winding taps (N1,...NJ,..., NN) of the second control winding (14), – an outgoing line (18) connected to the low-voltage side (15), the method comprising the following steps: – detecting a first signal (S1) indicating an imminent transition from a first operating state to a second operating state on the low-voltage side (15) of the control transformer (10), – actuating the second on-load tap changer (17) in such a way that the second on-load tap changer (17) is switched from a first operating position to a second operating position, in which the voltage present on the outgoing line (18) assumes a minimum value close to zero.
H02P 13/06 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changingArrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by rearranging interconnections of windings
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
The invention relates to a device (1) for contacting an electrical conductor (2), in particular a conductor of a power line for transmitting electrical energy, the device comprising: a contact plate (3) which has a contact region (4) by means of which a front end (8) of the conductor (2) is electrically contactable; a contact carrier (5) which is designed to receive the contact plate (3); a clamping body (6) for securing, with respect to the longitudinal axis (A) of the conductor (2), the conductor (2) to be contacted; and at least one fastening means (7) by means of which the contact carrier (5) and the clamping body (6) can be interconnected, wherein, via the at least one fastening means (7), a defined force can be introduced into the connection between the contact carrier (5) and the clamping body (6), and a contact force is established between the contact region (4) of the contact plate (3) and the front end (8) of the conductor (2).
H01R 4/26 - Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
09 - Scientific and electric apparatus and instruments
Goods & Services
Technical and electric installations, namely electric power
supply units, other than electricity generators, electricity
grids, solar electric panels, transducers (current and
voltage), isolators, overhead lines; sensors; buchholz
relays, electric transformers with built-in dehumidifiers;
contactors; sensors and measuring devices for temperature,
level, flow, speed, acceleration, tension (mechanical),
shaping, bending, expansion, shearing, torsion, pressure,
humidity, surface vibrations, sound, vibrations, radiation
(electromagnetic), light and microwaves; sensors and
measuring devices for current (electric), voltage
(electric), energy (electric), power (electric), impedance
(electric), power factor, phase shift, loss factor, partial
discharge, the analysis of dissolved gases and the
transformation ratio of transformers, resistance,
electromagnetic waves; electric sensors, electronic sensors,
electro-optical sensors, optical fibre sensors, acoustic
sensors, optical sensors, photoelectric sensors,
piezoelectric sensors, sensors for installation control and
engine control; computers, computer hardware, computer
software, interfaces for computers, communication interface
units, apparatus for transmission of communications;
installations, equipment and computer software for
conducting, distributing, switching, transforming,
accumulating or controlling electricity; computer software
for operating, controlling, monitoring and testing drives,
motors and engines, wind power installations, wind farms,
generators, technical, chemical and electric installations,
equipment and apparatus, electricity supply systems, mains,
solar modules, photovoltaic installations, transformers and
converters; installations, equipment and computer software
for operating, controlling, monitoring and testing electric
installations, equipment and apparatus for high-voltage
direct current transmission, converter stations, three-phase
current switching stations, dc current switching stations,
coils, capacitors, accumulators, apparatus for commutation,
tap changers, sensors, measuring equipment, control
equipment and monitoring equipment.
82.
Dry, syntactic foam as an electrically insulating material
An electrical insulation device includes an insulator body having a chamber and an electrically insulating material within the chamber. The electrically insulating material includes a dry syntactic foam.
C08J 9/232 - Forming foamed products by sintering expandable particles
C08J 9/32 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof from compositions containing microballoons, e.g. syntactic foams
H01B 19/00 - Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
83.
POWER FLOW CONTROL MODULE FOR USE IN A LOW-VOLTAGE LOCAL NETWORK
The invention relates to a power flow control module for use in an electrical network (12) or a network segment (10) and for adjusting the voltage and/or the current in a line (20) of the network (12) or network segment (10). The power flow control module (30) comprises two module connections (60, 62) for connection to the line (20) of the network (12), a plurality of switching elements (64), an energy store (68) and two energy connections (70) for connection to an energy source (92). The first module connection (60) and the second module connection (62) are designed to connect the power flow control module (30) electrically in series with the line (20). Two of the switching elements (64) are connected in series and in parallel with the energy store (68). The power flow control module (30) is interconnected in such a way that it is at the potential of the line (20) of the network (12) and is galvanically isolated from an earth potential or another line of the network (12). The switching elements (64) are designed to increase or to reduce the amplitude of the voltage in the line (20) in order to adjust the voltage or to control the flow of current in the line (20) accordingly. The invention also relates to a network segment (10) of a network (12) comprising a line (20) and a power flow control module (30) connected in series.
H02J 3/16 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
H02J 3/18 - Arrangements for adjusting, eliminating or compensating reactive power in networks
A resistor assembly can be used in a tap changer. The resistor assembly may include: a resistor element, which is held by at least two resistor holders; a base plate with at least one opening and on which the at least two resistor holders holding the resistor element are arranged; a plurality of guides, respectively formed in each of the resistor holders and being configured to position a first end and a second end of the resistor element with respect to a longitudinal direction between the two resistor holders; and contact points of the resistor element, the contact points being electrically contacted by contacts of the tap changer in a condition where the resistor element is inserted into the resistor holder.
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
The invention relates to a measuring device (2) for a current converter (4). The measuring device (2) comprises a peripherally extending core (6), a measuring coil (8) and a reference terminal (10). The measuring coil (8) is formed by a current conductor (12) which is wound around the core (6) and which extends from a first conductor end (14) to a second conductor end (16). The reference terminal (10) is electrically connected to the current conductor (12) centrally between the first conductor end (14) and the second conductor end (16). The invention also relates to a current converter (4), comprising a measuring device (2) and a differential amplifier (36).
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
86.
Method for producing a hollow electrical insulator, hollow electrical insulator and use of a hollow electrical insulator
A method produces a hollow electrical insulator. The method includes: winding first wound layers of a first fiber element onto a core; and winding second wound layers of a second fiber element onto an end region of the core. The first wound layers have turns of the first fiber element which enclose a first winding angle with a main direction of extension of the core. The second wound layers have turns of the second fiber element which enclose a second winding angle with the main direction of extension of the core which is larger than the first winding angle. An inner region of the core remains free of second wound layers.
B29C 53/00 - Shaping by bending, folding, twisting, straightening or flatteningApparatus therefor
B29C 53/56 - Winding and joining, e.g. winding spirally
B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Transformers [electricity], switching equipment, stepping switches, on-load tap changers, reactors, capacitances, arc suppression coils, electrodes, earthing or discharge devices, cables, overhead lines, switch gear, sensors; electric apparatus and instruments and computer programs for the monitoring, testing and control of transformers, circuit breakers, reactors, drives, wind power installations, generators, cables, overhead lines, switch gears, filter circuits, compensating reactors, electric switches, technical, chemical and electric installations, furnishings and apparatus; measuring assemblies, faraday assemblies, electric power supply units, voltage regulators, test lab devices and equipment, AC test systems, high current test systems, DC test system, surge voltage and surge current test systems, high voltage dividers, electric filters; sensors and measuring devices for temperature, level, flow, speed, acceleration, voltage (mechanical), shaping, bending, expansion, shearing, torsion, pressure, humidity, surface vibrations, sound, vibrations, radiation (electromagnetic), light and microwaves; sensors and measuring devices for current (electric), voltage (electric), energy (electric), power (electric), impedance (electric), power factor, phase shift, loss factor, partial discharge, the analysis of dissolved gases and the transformation ratio of transformers [electricity]; oscilloscopes, data loggers, voltage regulators, electrical filters and electronic filters, rogowski coils, high frequency current transformers, uhf sensors, coupling capacitors, optical fibre sensors, sensors and installations for measuring small or large signals; computer, computer hardware, computer software, cloud and cloud applications, interfaces for computers, communication interface units, apparatus for transmission of communications; equipment and computer software for conducting, distributing, switching, transforming, storing, influencing, monitoring and controlling electricity; computer software for influencing, pressing, controlling, monitoring, assessing and examining drives, motors, wind power installations, wind farms, generators, cables, switch gears, overhead lines, filter circuits, compensating reactors, electric switches, technical, chemical and electric installations, furnishings and apparatus; all the aforesaid goods being solely in the field of high voltage technology.
09 - Scientific and electric apparatus and instruments
Goods & Services
Transformers, switching equipment, namely, electricity switch cabinets, electricity switch boxes, electric control panels, electrical and high voltage reactors, electric stepping switches, on-load tap changers being components of transformers, electrical reactors, capacitances in the nature of capacitors, arc suppression electric coils, electrodes, earthing or discharge devices in the nature cables for earthing and electric discharge tubes, other than for lighting, electric cables, overhead lines in the nature of electric cables; electric apparatus and instruments in the nature of electric meters, calculating machines, electric control panels, voltage regulators, and apparatus and instruments for regulating and controlling electric current and voltage and downloadable or recorded computer programs for the monitoring, testing and control of transformers, circuit breakers, reactors, drives, wind power installations, generators, cables, overhead lines, switch gears, filter circuits, compensating reactors, electric switches, technical, chemical and electric installations, furnishings and apparatus; measuring assemblies in the nature of instruments for measuring temperature, pressure, current, voltage, amperage, wattage, electrical resistance, capacitance, reactive power, dissipation factor, power factor, phase shift and electrical impedance, faraday assemblies in the nature of faraday cages, voltage sources, electric and electronic filters, electric power supply units, voltage regulators, test lab devices and equipment in the nature of equipment for measuring high voltage measurements including measuring AC, DC and impulse voltage and electrical currents, AC test systems consisting primarily of equipment for generating and measuring high voltage AC voltage and electrical currents, high current test systems consisting primarily equipment for measuring high voltage measurements including measuring AC, DC and impulse voltage and electrical currents, DC test system consisting primarily equipment for generating and measuring high voltage DC voltage, surge voltage and surge current test systems consisting primarily of equipment for measuring high voltage measurements including measuring AC, DC and impulse voltage and electrical currents, electric filters in the nature of low pass inductor filter used in high power electrical applications; sensors and measuring devices for measuring temperature, liquid level, fluid flow, speed, acceleration, voltage, bending, expansion, shearing, torsion, pressure, humidity, surface vibrations, sound, vibrations, radiation, light and microwaves not for medical use; sensors and measuring devices for measuring current, voltage, energy, power, impedance, power factor, phase shift, electric loss factor, partial discharge, the analysis of dissolved gases, and the transformation ratio of transformers, not for medical use; oscilloscopes, electronic data loggers, voltage regulators, electrical filters in the nature of low pass inductor filter used in high power electrical applications and electronic filters in the nature of low pass inductor filter used in high power electrical applications, rogowski coils in the nature of electrical transformers, high frequency current transformers, uhf electric sensors, coupling capacitors, not for medical use; computers, computer hardware, downloadable or recorded computer software for conducting, distributing, switching, transforming, accumulating, monitoring influencing or controlling electricity, downloadable or recorded cloud computing software for conducting, distributing, switching, transforming, accumulating, monitoring influencing or controlling electricity and cloud software applications for conducting, distributing, switching, transforming, accumulating, monitoring influencing or controlling electricity, interfaces for computers, communication interface units in the nature of electronic display interfaces, downloadable or recorded computer software for conducting, distributing, switching, transforming, storing, influencing, monitoring and controlling electricity; installations, equipment for conducting, distributing, switching, transforming, accumulating or controlling electricity, namely, electrical conductors, electrical switchers, electrical on load tap-changers, electric tap-changers, electrical power distribution units, electric accumulators, electric control panels, and resistors for distributing or controlling electric current or voltage, downloadable or recorded computer software for influencing, processing, controlling, monitoring, assessing and examining drives, motors, wind power installations, wind farms, generators, cables, switch gears, overhead lines, filter circuits, compensating reactors, electric switches, technical, chemical and electric installations, furnishings and apparatus * ; all the aforesaid goods being solely in the field of high voltage technology *
The invention relates to an insulator (1) for high-voltage applications, comprising: - a substantially rotationally symmetric hollow tube (2) made of a glass-fiber-reinforced epoxy resin; - a shield (3) made of silicone, which is provided on the periphery of the hollow tube (2); - a base flange (4) at a lower end (5) of the hollow tube (2); - a retainer (6) for an operating means for high-voltage applications at an upper end (7) of the hollow tube (2); wherein: the insulator (1) has a closure element (8), more particularly a stopper, which is disposed within the hollow tube (2) and closes the terminal face of the upper end (7) of the hollow tube (2) and seals said terminal face with respect to the outside; the retainer (6) has a rotationally symmetric connection region (9); the insulator (1) has, at the upper end (7) of the hollow tube (2), a radially peripheral joining region (10), which is free of silicone shield (3); the retainer (6) can be connected to the insulator (1) such that the connection region (9) of the retainer (6) interlockingly surrounds the joining region (10) of the insulator (1).
The invention relates to an insulator (1) for high-voltage applications, comprising: - a substantially rotationally symmetric hollow tube (2) made of a glass-fiber-reinforced epoxy resin; - a shield (3) made of silicone, which is provided on the periphery of the hollow tube (2); - a base flange (4) at a lower end (5) of the hollow tube (2); - a retainer (6) for an operating means for high-voltage applications at an upper end (7) of the hollow tube (2); wherein: the insulator (1) has a closure element (8), more particularly a stopper, which is disposed within the hollow tube (2) and closes the terminal face of the upper end (7) of the hollow tube (2) and seals said terminal face with respect to the outside; the retainer (6) has a rotationally symmetric connection region (9); the insulator (1) has, at the upper end (7) of the hollow tube (2), a radially peripheral joining region (10), which is free of silicone shield (3); the retainer (6) can be connected to the insulator (1) such that the connection region (9) of the retainer (6) interlockingly surrounds the joining region (10) of the insulator (1).
The invention relates to a method and to a system (1) for monitoring at least one inductive operating means (TR). The inductive operating means (TR) is used in a power supply network. For this purpose, each inductive operating means is assigned a monitoring unit (2). Real-time data (22) relating to the current state of the inductive operating means (TR) can be stored in a data store (4) of the monitoring unit (2). An evaluation unit (6) of the monitoring unit (2) is communicatively connected to the data store (4). By means of the monitoring unit (2), a failure rate (FR) for the at least one inductive operating means (TR) is determined according to a state factor (CF).
Switching means (1) for an on-load tap changer (30), comprising: - a first fixed contact (3) and a second fixed contact (4); - a movable contact (5) with a first attraction element (6); wherein - the movable contact (5) is movable from a first position (40) to a second position (41) via the first attraction element (6) and a second attraction element (31), which is arranged outside the switching means (1); - the movable contact (5), in its first position (40), contacts none or only one of the fixed contacts (3, 4) and, in its second position (41), contacts both fixed contacts (3, 4).
H01H 1/54 - Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Transformers [electricity], switching equipment, stepping
switches, on-load tap changers, reactors, capacitances, arc
suppression coils, electrodes, earthing or discharge
devices, cables, overhead lines; electric apparatus and
instruments and computer programs for the monitoring,
testing and control of transformers, circuit breakers,
reactors, drives, wind power installations, generators,
cables, overhead lines, switch gears, filter circuits,
compensating reactors, electric switches, technical,
chemical and electric installations, furnishings and
apparatus; measuring assemblies, faraday assemblies, energy
supply units, voltage regulators, test lab devices and
equipment, ac test systems, high current test systems, dc
test system, surge voltage and surge current test systems,
high voltage dividers, electric filters; sensors and
measuring devices for temperature, level, flow, speed,
acceleration, voltage (mechanical), shaping, bending,
expansion, shearing, torsion, pressure, humidity, surface
vibrations, sound, vibrations, radiation (electromagnetic),
light and microwaves; sensors and measuring devices for
current (electric), voltage (electric), energy (electric),
power (electric), impedance (electric), power factor, phase
shift, loss factor, partial discharge, the analysis of
dissolved gases and the transformation ratio of transformers
[electricity]; oscilloscopes, data loggers, voltage
regulators, electrical filters and electronic filters,
rogowski coils, high frequency current transformers, uhf
sensors, coupling capacitors, optical fibre sensors;
computer, computer hardware, computer software, cloud and
cloud applications, interlaces for computers, communication
interface units, apparatus for transmission of
communication; equipment and computer software for
conducting, distributing, switching, transforming, storing,
influencing, monitoring and controlling electricity;
computer software for influencing, pressing, controlling,
monitoring, assessing and examining drives, motors, wind
power installations, wind farms, generators, cables, switch
gears, overhead lines, filter circuits, compensating
reactors, electric switches, technical, chemical and
electric installations, furnishings and apparatus. Design, implementation, installation, commissioning,
updating, maintenance and repair in relation to the
following goods: computer software, consultancy services
relating to computer hardware and computer software;
storage, backup and protection of data, updating,
maintenance and administration of database systems;
engineering services; design and development of systems for
recording, collecting, compiling, systemisation, evaluating
testing, displaying and visualising of data, information and
signals in the technical sector; provision of research
services, development services, technoligical consultancy,
quality control, technical project planning, calibration in
relation to the following goods: electrical devices.
94.
Method for carrying out a switchover of at least two switching means for equipment, and drive system for at least two switching means in equipment
A method carries out a switchover of a first switch or at least one second switch for equipment. The method includes receiving, by a controller, a switching signal; selecting, by the controller, the first switch or at least the second switch for switchover on the basis of the switching signal; querying, by the controller, at least one parameter of the first switch or the at least second switch; checking a locking condition on the basis of the at least one queried parameter for the first switch or a locking condition for the at least second switch; and carrying out the switchover by the selected first switch or the at least second switch based upon the corresponding locking condition being met.
H01H 3/26 - Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
H01H 9/00 - Details of switching devices, not covered by groups
H01F 29/04 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
95.
Drive system for a switch, and method for driving a switch
A drive system drives at least one switch. The drive system includes: a drive shaft, which is configured to connect the drive system to the at least one switch and at least one motor, which is configured to be coupled to the drive shaft; a feedback system which is configured to determine a position of the drive shaft and, based on this position, to generate a feedback signal; and a controller which, based on the feedback signal, selects a stored travel profile from a plurality of travel profiles and controls the motor in accordance with the selected travel profile.
A switch assembly including a switch and a drive system for the switch. The drive system includes a motor for driving the switch, a control device with a power section for supplying power to the motor, a controller for initiating a switching operation of the switch by control of the power section, and a protection circuit. The protection circuit is configured to detect a first error signal via a state contact of the controller in the event of a malfunction of the controller, detect a second error signal via a state contact of the power section in the event of a malfunction of the power section, and initiate a safety measure depending on the first and the second error signal. The control device is configured to activate the protection circuit prior to the switching operation being initiated and to deactivate it following successful execution of the switching operation.
The invention relates to a switch unit (11) for a step transformer (10), comprising - a control device (6), a motor (5) and an on-load tap changer (2), wherein - a control device (6) controls the motor (5) which actuates the on-load tap changer (2); - the control device (6) draws power required for actuation and control from a low-voltage winding (21) inside the step transformer (11).
The invention relates to a switch assembly (1) comprising an on-load tap changer (17) and a drive system (3) for the on-load tap changer (17), said drive system (3) containing - a stepping motor (12) with a motor shaft (16), wherein the motor shaft (16) is connected to the on-load tap changer (17) and actuates it; - a feedback system (4) which is configured to - determine at least one value for a position of the motor shaft (16), and - generate a feedback signal based on the at least one value; and - a control device (2) which is configured to influence the operation of the switch assembly (1) as a function of the feedback signal.
A switch assembly includes a switch, and a servo drive system for the switch. The servo drive system includes a motor configured to drive the switch; a power section configured to supply power to the motor; and a controller embodied as a programmable safety controller configured to actuate the power section depending on a desired value.
A method carries out a switchover of a switch for at least one item of equipment. The method includes receiving, by a controller, a switching signal; selecting the at least one switch for switchover the controller on the basis of the switching signal; checking a locking condition for the selected switch on the basis of at least one parameter; and carrying out the switchover by the at least one selected switch by a motor of the switch upon determining that the corresponding locking condition is met.
