Coil-based actuators for use in opening and closing the separable contacts of circuit interrupters provide increased initial velocity for opening strokes and improved damping at the end of opening strokes by utilizing current-based damping and omitting contact springs and contact dampeners.
A network protector includes: a first resettable switching apparatus configured to control an electrical connection between a distribution transformer and a first electrical feeder of a secondary electrical distribution network; a first communications interface; and a first controller configured to: determine a direction of power flow in the first electrical feeder; cause the first communications interface to provide a first indication of the direction of power flow in the first electrical feeder to a second network protector; and receive a second indication from the second network protector. The second indication includes an indication of the direction of power flow in a second electrical feeder of the secondary electrical distribution network.
H02H 7/22 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systemsEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for switching devices
H02H 1/00 - Details of emergency protective circuit arrangements
3.
HIGH VOLTAGE DIRECT CURRENT CIRCUIT PROTECTION SYSTEM AND METHOD
A high voltage, direct current circuit protection system includes a number n of weakened circuit conductors connected in series to one another and being fabricated in a manner to avoid metal fatigue in response to cyclic current loads. The system also includes a corresponding number n of cutting elements operable to sever the respective weakened circuit conductors, at least one energy storage element acting upon one of the cutting elements, a control element causing a release of stored energy in the at least one energy storage element and causing a displacement of at least one of the cutting elements to sever the respective weakened circuit conductor, and a corresponding number n of arc chambers arranged proximate each respective one of the weakened circuit conductors, wherein n is an integer greater than 1 and wherein no circuit protector coordination with the weakened circuit protectors is required.
H01H 39/00 - Switching devices actuated by an explosion produced within the device and initiated by an electric current
B60L 3/04 - Cutting-off the power supply under fault conditions
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
4.
COMPACT DUAL FEEDERS AND METHODS TO CONNECT FIELD CONNECTIONS TO DUAL FEEDERS IN MOTOR CONTROL CENTERS (MCCS)
A connection system for use with a motor control unit is provided. The connection system includes one or more physical channels for passage of wires or cables that connect one or more motor control units to a common bus that distributes electrical power to the one or more motor control units. The one or more channels include a plurality of channels; the plurality of channels are provided in a single housing; and the plurality of channels are molded into the single housing such that the connection system is one contiguous piece. Related connectors are also provided.
A method to identify a faulty component of an electronic device under test is provided. The method includes receiving a layout of the electronic device that includes a placement of a plurality of probes on the electronic device under test, the plurality of probes including at least a starting probe and an ending probe defining a signal path wherein a flow of an electrical signal flows along the signal path, applying a test signal to a beginning of the signal path, activating two or more of the plurality of probes including at least the starting probe and the ending probe, receiving signal data from each of the activated probes, and evaluating a next pair of signal data in the signal path between two probes that are selectively activated inward between the starting probe and the ending probe in consecutive tests with the test signal until detection criteria are satisfied.
A rocker assembly for a valvetrain comprises a rocker arm comprising a cam end, a center pivot bore, and a valve end, the valve end comprising a first bore. The engine brake actuator comprises an engine brake mechanism disposed within the first bore, the engine brake mechanism comprising a body and a plunger disposed within the body. The plunger is configured to translate between a retracted position and an extended position. The plunger contains a spring disposed between latch pins, the spring being configured to bias the latch pins in an outward direction. The body defines seats for receiving the latch pins. The rocker assembly further comprising an actuation mechanism disposed within a second bore and configured to direct a fluid to the engine brake mechanism to hydraulically move the plunger to the extended position and hydraulically move the latch pins toward each other.
F01L 1/26 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gearValve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines with more than two lift valves per cylinder
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
F01L 13/06 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
7.
ELECTRICAL ENCLOSURE AND UNIVERSALLY MOUNTABLE ELECTRICAL ASSEMBLY
A system includes an enclosure (140) that includes a tank (150), a first compartment (160) including a first interior region, a second compartment (170) including a second interior region, and an electrical assembly (110) in an interior of the tank (150). The electrical assembly (110) is electrically connected to an electrical conductor (191) of each of one or more bushings (190) in the second interior region. The system also includes a control apparatus (130) in the first interior region. The control apparatus (130) is coupled to the electrical assembly (110), and the first and second compartments (160, 170) are on opposite sides of the tank (150). The electrical apparatus (110) may be a voltage regulator (210).
H02B 7/00 - Enclosed substations, e.g. compact substations
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
A cable tray assembly includes first and second cable tray sections. Each cable tray section included a rail including a vertical web, an upper flange, and a lower flange. Each upper flange includes an outboard portion having a downwardly extending tab forming a groove extending along the upper flange. A splice plate assembly connects the first and second cable tray sections. The splice plate assembly includes a first splice plate configured to be retained in the groove extending along the upper flange of the first cable tray section. A second splice plate is configured to be retained in the groove extending along the upper flange of the second cable tray section. The first and second splice plates each define a fastener opening. The fastener openings are alignable with one another and configured to receive a fastener to connect the first and second cable tray sections when the splice plates are attached to the respective cable tray sections.
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution boxEnsuring electrical continuity in the joint
F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
F16L 3/26 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
H02G 3/04 - Protective tubing or conduits, e.g. cable ladders or cable troughs
9.
BIDIRECTIONAL CONVERTER ARRANGEMENT AND METHOD FOR OPERATING A BIDIRECTIONAL CONVERTER ARRANGEMENT
A bidirectional converter arrangement (10) comprises a first side (11), a first DC-DC converter (21) with a first and a second side (23, 31), a second DC-DC converter (22) with a first and a second side (26, 34), a switching arrangement (20) which couples the first side (11) of the bidirectional converter arrangement (10) to the first sides (23, 26) of the first and of the second DC-DC converters (21, 22), a capacitor arrangement (40) coupled to the second sides (31, 34) of the first and the second DC-DC converters (21, 22), a DC-AC converter (50) and a second side (12) which is coupled via the DC-AC converter (50) to the capacitor arrangement (40). The switching arrangement (10) switches the first side (23) of the first DC-DC converter (21) and the first side (26) of the second DC-DC converter (22) in a serial circuit or a parallel circuit.
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
H02M 7/797 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output with 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
Contact position indicator A contact position indicator (100) for a switch (200), and a method for operating the contact position indicator, is provided for use with a switch of an electrical system. The contact position indicator comprises an indicator (102) and a coupler link (110). The coupler link and the indicator are configured such that movement of the coupler link from a first position to a second position causes the indicator to move from a third position to a fourth position, and when the coupler link moves from the second position to the first position, the indicator moves from the fourth position to the third position. When the coupler link is at the first position, the coupler link and the indicator do not touch and are not otherwise coupled.
A hybrid circuit breaker system (100A) integrates the use of a super-capacitor bank (120) in each pole to absorb system inductive energy produced during current interruption under fault conditions. Under normal conditions, the super-capacitor bank (120) is disconnected from the line and neutral conductors and current is fully conducted by mechanical contacts (8). When a fault condition is detected, the mechanical contacts (8) are opened and a parallel solid-state branch (114) gets powered on to commutate the current. The super-capacitor bank (120) gets connected to the line and neutral conductors once the solid-state branch (114) is fully conducting, which diverts some current to the super-capacitor bank (120). The solid-state branch (114) gets powered off after a short time, and current interruption is completed by an arrester branch (115) parallel with the solid-state branch (114). The super-capacitor bank (120) gets charged during the current interruption operation, and can provide auxiliary power to the hybrid circuit interrupter and critical loads after current interruption is complete.
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 3/02 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details
H01H 9/54 - Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
Described herein is a Thomson coil actuator comprising a disc which is at least partially conductive (also called herein a "conductive disc") and at least two conductive coils arranged concentrically around an axis, wherein the at least two conductive coils do not overlap along the axis. The coils are configured to drive the disc in a first direction along the axis when an electric current is provided to the at least two conductive coils. A driver circuit is configured to provide an electric current to each of the at least two conductive coils independently, wherein the driver circuit configured to provide the at least two electric currents simultaneously. The disc can be flat, or it can be stepped.
ELECTRICAL POWER DISTRIBUTION SYSTEMS WITH A BYPASS UNIT THAT COUPLES TO A LOAD AND ELECTRICALLY ENGAGES ONE OF TWO ALTERNATE UNITS FOR POWERING THE LOAD AND RELATED METHODS
Electrical power distribution devices with a bypass unit that electrically engages one of two alternate units for powering a load while electrically isolating the other using a six pole power transfer switch and mechanical and electrical interlocks to allow a technician to access one of the alternate units when de-energized and in position while the other of the alternate units is energized and powering the load.
An elastically deformable connector system for use in connecting battery modules in a battery pack. The elastically deformable connector system comprising busbar assembly having a busbar with a plurality of individual conductors vertically arranged to provide a first peripheral portion, a second peripheral portion, and an elastically deformable intermediate portion located between the first and second peripheral portions. The busbar assembly also includes a first male connector assembly coupled to the first peripheral portion of the busbar, a second male connector assembly coupled to the second peripheral portion of the busbar, and a busbar housing that encloses a substantial extent of the busbar. Wherein after the busbar assembly is electrically connected to a pair of battery modules in the battery pack, the intermediate portion is configured to elastically deform to compensate for each of compression movement and expansion movement of the pair of battery modules.
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar
H01M 50/526 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the material having a layered structure
A torque vectoring system includes a torque limiter disposed between an engine shaft and an engine input gear of a torque vectoring arrangement. The torque limiter includes a first clutch housing configured to rotate with the engine shaft; and a second clutch housing configured to rotate the engine input gear. The second clutch can be selectively coupled to the first clutch housing via an interface mechanism that is overcome during high rotation of the engine shaft.
An electrical apparatus forming part of an AC power supply network is provided. The electrical apparatus comprises: a conductor; one or more sensors for measuring a current in the conductor and a voltage on the conductor; and a control unit. The control unit being configured to: receive, from the one or more sensors, measurements of the value of the current in the conductor and the voltage at the conductor; calculate a phase angle between the measured voltage and the measured current; determine whether a short circuit current is occurring in the conductor; based on determining that no short circuit current is present in the conductor, determine which of a first predetermined range and a second predetermined range contains the calculated phase angle; and based on determining that a fault condition is occurring in the power supply network, determine which of a third predetermined range and a fourth predetermined range contains the calculated phase angle.
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
G01R 21/06 - Arrangements for measuring electric power or power factor by measuring current and voltage
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
Provided herein is an uninterruptible power supply, UPS, for connecting between one or more loads and a supply. The UPS comprises energy storage means configured to supply electrical power to the one or more loads when there is no electrical power from the supply. The UPS comprises a processor powered by the energy storage means and/or a controller configured to connect to an external safety circuit with a hardware off button. The processor is programmable to control operation of the UPS and/or the one or more loads, and is integrated into the UPS. The controller is configured, in response to detecting an event, to initiate a safe mode of the UPS or initiate a shutdown sequence of the one or more loads. A system comprising the UPS and one or more loads is also provided, along with a method of operating the UPS.
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
Some embodiments relate to an arrangement including a circuit breaker, a switch, a first signal line, a first current connection line and a first power port. The circuit breaker can include a first and a second breaker terminal. The switch is realized as a disconnector or a contactor and comprises a first and a second contact terminal. The first signal line is coupled to the circuit breaker and to the switch. The first current connection line is coupled to the first breaker terminal and to the first contact terminal. The first power port is coupled to the first current connection line.
Some embodiments relate to an actuation knob for use in opening and closing a switch, and a device and system comprising the same. The actuation knob is configured to move with respect to a first axis and includes: an engagement portion configured for engagement by a user, the engagement portion having a slot; and a slidable portion disposed within the slot and configured to slide relative to the engagement portion. The slidable portion is configured to slide between a first position and a second position along a second axis, wherein the first and second axes are non-parallel. The slidable portion comprises at least two compliant mechanisms biased in a direction away from the second axis and offset from one another in a direction perpendicular to the second axis along a plane of the slidable portion.
Switching device The switching device (1) comprises at least one fixed contact (51, 52) and at least one moveable contact (41, 42) arranged on a contact bridge (40). Furthermore, the switching device comprises (1) a magnetic drive assembly (2) with a moveable armature (20) and a fixed part (21). The switching device (1) further comprises a stopping element (3). The armature (20) is connected to the contact bridge (40) via a spring (4). The magnetic drive assembly (2) and the contact bridge (40) are arranged in a housing (5). In a first switching state (11) of the switching device (1) the fixed contact (51, 52) is electrically connected to the moveable contact (41, 42) and the armature (20) is in contact with the fixed part (21). In a second switching state (12) the fixed contact (51, 52) is separated from the moveable contact (41, 42) and the armature (20) is pulled out of the fixed part (21). The stopping element (3) is configured to stop a motion of the armature (20) during transition from the first switching state (11) to the second switching state (12) at a position such that the armature (20) is spaced apart from the housing (5). The switching device (1) comprises a first damping structure (61) covering at least a part of the fixed part (21) of the magnetic drive assembly (2) such that the mechanical coupling of the housing (5) and the magnetic drive assembly (5) is reduced.
An apparatus includes: a rigid electrically conductive shell including an inner wall that defines an interior region; one or more rigid electrical conductors in the interior region; and a rigid electrically insulating support structure in the interior region. The rigid electrically insulating support structure holds each of the one or more rigid electrical conductors and electrically insulates each of the one or more rigid electrical conductors from the rigid electrically conductive shell.
A sealing arrangement for a rotary device includes a seal member configured to selectively seal against fluid passing between two chambers. The seal member seals against fluid when in an actuated state and does not provide such sealing when in a deactuated state. A transition member maintains the seal member in the deactuated state during an initial configuration of the rotary device. After a time, the rotary device is transitioned (e.g., using a tool) to a subsequent configuration in which the seal member is actuated. Actuating the seal members during a mid-life of the rotary device enhances the life expectancy of the rotary device.
A method of securing an electrical conduit in an electrical conduit fitting including releasably gripping and removably retaining the electrical conduit in the electrical conduit fitting with a conduit retainer disposed in a passage of the electrical conduit fitting prior to press connecting the electrical conduit fitting to the electrical conduit to fixedly attach the electrical conduit fitting to the electrical conduit.
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution boxEnsuring electrical continuity in the joint
F16L 13/14 - Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
F16L 37/091 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
H02G 1/08 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
H02G 3/22 - Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
24.
MARINA POWER PEDESTAL INCLUDING MARINA SAFETY STATUS INDICATION DEVICE
A power pedestal includes: a pedestal member comprising a base structured to be attached to a platform and an enclosure extending from the base; a leakage current detection unit structured to detect a leakage current in the water in a slip and to output a leakage current detection signal based on the detected leakage current; and a marina safety status indication unit comprising: a control circuit connected to the leakage current detection circuit and structured to determine a real time marina safety status in the water within the slip and to output a marina safety status signal based on the determination; and a marina safety status indication device including a rub rail and a marina safety status indicator embedded in the rub rail and connected to the control circuit, the marina safety status indicator structured to provide the real time marina safety status based on the marina safety status signal.
G08B 5/36 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmissionVisible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electromagnetic transmission using visible light sources
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
H02B 1/50 - Pedestal- or pad-mounted casingsParts thereof or accessories therefor
There is provided a contactor device for making or breaking a connection between a load and a power supply, comprising: a coil (12) having an interior space extending between a first coil opening and a second coil opening; a frame (14) at least partly surrounding the coil and having a first side (24) with a first frame aperture (26) at the first coil opening and a second side (28) with a second frame aperture (30) at the second coil opening; a plunger (16) extending through the interior space of the coil and through the first and second frame aperture and being provided with a first plate (18) at its first end and with a second plate (20) at its second end, wherein the first and second plate are located outside the frame and wherein the plunger is axially moveable from a first position to a second position by energizing the coil, and wherein the load is connected to the power supply in one of the first and second position and is disconnected from the power supply in the other one of the first and second position; a permanent magnet arrangement (22) located within the frame and outside the coil between the coil and the second side of the frame, with the plunger extending through the permanent magnet arrangement; a spring arrangement (36) for axially moving the plunger from the s0econd position to the first position when the coil is deenergized. The frame is made of a ferromagnetic material, and the plunger comprises a ferromagnetic portion (16A) substantially extending within the interior space of the coil towards the first frame aperture and a non-ferromagnetic portion (16B) located axially adjacent to the ferromagnetic portion and substantially extending within the permanent magnet arrangement.
H01H 50/20 - Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereofMovable parts of magnetic circuits, e.g. armature movable coaxially with respect to coil
H01H 1/24 - Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
An electrical switching cap comprises a switching cover body formed of a first insulating material, the switching cover body having a closed first end; a protection cap disposed over the first end of the switching cover body and bonded to the switching cover body, the protection cap formed of a second insulating material; and sensing circuitry disposed over the protection cap such that the protection cap is disposed between the switching body cover and the sensing circuitry.
The present disclosure relates to a multi-material gear assembly including a first gear including a first material, the first gear defining a plurality of first gear teeth, and a gear shaft configured to support the first gear, the gear shaft being formed of a second material that is different from the first material, and the second material has a higher damping coefficient than the first material.
An apparatus includes: a fuse body that extends along an axis from a first end to a second end, the fuse body including an interior surface that defines a bore that extends from the first end to the second end, the bore including regions, and the interior surface including at least a first transition and a second transition. A radial thickness of the fuse body is greater at the first transition than at the second transition such that the bore has a greater internal diameter at the second transition than at the first transition; the regions include at least a sheath exhaust region between the first transition and the second transition, a first region between the first end and the first transition, and a second region between the second transition and the second end; and the sheath exhaust region has a greater extent along a direction that is parallel to the axis than any of the other regions.
A rocker arm assembly is rotatable about a rocker shaft and includes a first portion and a second portion. The first portion is configured to receive a valve lift profile. The second portion is configured to operatively engage with one or more valves. The rocker arm assembly also includes an actuator assembly switchable between a first state and a second state, and a plunger assembly provided within a plunger bore and having a plunger axis angled to a longitudinal axis of the actuator assembly.
Lash can be mitigated in a locking system of a differential assembly to improve lock detection accuracy. A sensor tracks the position of an armature arrangement that moves in response to the energization/de-energization of an electromagnet to lock and unlock the differential assembly. Reducing lash allows a detection system to better determine a position of the armature based on the sensor readings. Example structures to reduce lash include a biasing ring to hold the armature at a specific position; a shim disposed between the differential case and the stator to hold the stator at a specific position relative to the differential case; and a stop member to hold the armature at a specific position when the differential assembly is unlocked.
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
A valve assembly includes a housing having an inner chamber, a float assembly provided within the inner chamber, and an elongated membrane. The inner chamber is provided with a vent orifice in fluid communication with a vent outlet. The float assembly is movable along a longitudinal axis of the housing, and includes an angled platform disposed on an upper surface of the float assembly. The membrane includes a first end secured to a first attachment of the float assembly, a second end provided opposite the first end and secured to a second attachment of the float assembly, and a slack portion associated with the second end.
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
In one embodiment, an engine brake capsule for use in a rocker arm is provided. The engine brake capsule includes a housing comprising a first chamber and a second chamber, an actuation pin assembly housed in the first chamber, a check ball assembly housed in the second chamber, a plunger pad comprising a channel extending through the plunger pad, and a latching assembly coupled to the plunger pad through the channel of the plunger pad. In particular, the plunger pad is at least partially housed in the second chamber and configured to be movable relative to the second chamber. The latching assembly is configured to be movable between a latched position to lock the plunger pad relative to the second chamber and an unlatched position to unlock the plunger pad from the second chamber.
An enclosure (100) includes a cover (102) having a plurality of apertures (114). The enclosure further includes a body (104) having a first surface (126) and a second surface (128) opposite the first surface (126), wherein the first surface (126) is an engagement surface (112) having a plurality of holes (162) corresponding with the cover apertures (114), the body (104) further having at least one sidewall (130, 132, 134, 136) defining a cavity (138). The enclosure (100) further includes a plurality of fasteners (118) that pass through the cover apertures (114) and the corresponding body holes (162), thereby securing the cover (102) to the body (104). The enclosure (100) further includes a slot (170) along the engagement surface (112).
The disclosure provides Si-free aluminum alloys comprising Ce, Zn, and Mg suitable for laser powder bed fusion (LPBF) 3D printing. The printed components can be subjected to hot isostatic pressing and further heat treated to provide 3D printed components exhibiting higher hardness than existing Al-Si based alloys produced under the same conditions. The Si-free aluminum alloy resists coarsening of second phase on HIP, retaining high strength and hardness. The alloy also does not need separate solutionizing and water quenching following HIP, thus saving cost, time and permitting design of more delicate and intricate geometries.
Disclosed herein are electrical devices having a dual-layer button assembly configured to facilitate a straight path of button movement within the device in response to an external pushing force, including an eccentric or off-center force. A button assembly may include a TEST or RESET button for a ground fault circuit interrupter (GFCI) outlet. In one example, a dual-layer function button assembly may include an external button configured to receive a manual force to push the external button into the outlet and an external spring engaged with the bottom of the external button. An inner button may be arranged within the outlet, behind the external button, that is connected to components that initiate the associated function. The inner button may include an upper side configured to engage the bottom of the external button such that the external button pushes the inner button into the outlet.
A pressure vessel is disclosed, comprising a pressure vessel body defining interior for containing a pressurized fluid and an accessory attachment structure coupled to the pressure vessel body. The pressure vessel body comprises a liner and at least a first layer that surrounds the liner, the first layer including a fiber-reinforced polymer. The accessory attachment structure comprises an accessory connection portion and an anchor portion. The anchor portion is secured between the liner and the first layer with the first layer overlapping the anchor portion. The accessory connection portion projects outwardly from the anchor portion at least partially through the first layer.
Disclosed herein is a system comprising a conductor and a Rogowski coil. The Rogowski coil is configured to measure a current through the conductor, wherein the current measured by the Rogowski coil comprises a first component and a second component, wherein the first component is the current through the conductor. The system further comprises a voltage measuring device configured to measure a voltage across of the conductor, wherein the second component of the current depends on the measured voltage in accordance with a pre-defined relationship. The system further comprises a processing means configured to receive the measured current and the measured voltage, and wherein the processing means is configured to calculate a corrected current measurement from the measured current, wherein the corrected current measurement is generated by subtracting the second component of the current from the measured current to obtain the first component.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 35/00 - Testing or calibrating of apparatus covered by the other groups of this subclass
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
38.
Advanced Valve Train Assembly for Engine Brake and Cylinder Deactivation
In one embodiment, a valve train assembly includes a rocker arm having a cam end in proximity to a cam and a valve end opposite to the cam end and in proximity to one or more valves, an engine brake capsule coupled to the cam end, and a cylinder deactivation capsule coupled to the cam end. The engine brake capsule includes an actuation pin assembly, a check valve assembly, and a plunger, and is configured to switch between a retracted position and an extended position. The cylinder deactivation capsule includes an outer body, an inner body, and a latching mechanism, and is configured to switch between a latched position and an unlatched position. In this way, the valve train assembly may perform both engine brake and cylinder deactivation functionalities, for example, at the cam side of the valve train assembly.
F01L 13/06 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
F01L 1/46 - Component parts, details, or accessories, not provided for in preceding subgroups
F02D 13/04 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
39.
ANGULAR STEPPED U-CORE AND ARMATURE PLATE SYSTEM GENERATING INCREASED MAGNETIC FORCE FOR TRIP MECHANISM OF CIRCUIT BREAKER
An improved magnetic trip mechanism for a circuit breaker includes a magnetizable U-shaped core and an armature whose shapes are advantageously designed to increase magnetic force within a compact footprint. In particular, the magnetizable U-core comprises step formations that enable the armature to be received at least partially within the U-core, thus enabling the armature to move a greater distance as compared to an arrangement including a non-stepped U-core while maintaining or decreasing the footprint of the circuit breaker. The arms of the U-core can additionally comprise slanted surfaces in order to further increase the surface area of the U-core and thus increase the number of magnetic field lines and magnetic force generated when the U-core is energized.
Disclosed herein are electrical outlets having circuit interrupter functionality, for instance, through a ground fault circuit interrupter (GFCI) system. The described electrical outlets include a moveable contact assembly configured to implement the circuit interrupter functionality. In one example, the moveable contact assembly includes a moveable load contact, a moveable receptacle contact, and a moveable arm bifurcated along a lateral plane into a first planar leg and a second planar leg. The moveable load is arranged on the first planar leg and the moveable receptacle is arranged on the second planar leg. The moveable arm may be moveable longitudinally into a RESET state where the moveable load contact engages a stationary load contact and the moveable receptacle contact engages a stationary receptacle contact to place the electrical outlet into normal operating conditions, where the stationary receptacle contact arranged at a different longitudinal height than the stationary load contact.
H01R 13/713 - Structural association with built-in electrical component with built-in switch the switch being a safety switch
H01R 24/78 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts
H01R 25/00 - Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
Disclosed herein are water-resistant housings for an electrical outlet. The water-resistance of the housings is implemented via interlocking step structured connections between sub-housings of the main housing. In one example, a water-resistant housing assembly may include a top and bottom housings each having perimeters formed of outer ridges and inner grooves, and a middle housing having a top middle perimeter and a bottom middle perimeter, the top middle perimeter and the bottom middle perimeter comprising respective inner ridges and outer grooves. In some examples, the middle housing is configured to form water-resistant connections with the bottom housing and the top housing via forming a interlocking step structure between the inner ridges and the outer grooves the corresponding outer ridges and inner grooves of the bottom housing and the top housing.
The present disclosure pertains to systems and methods for rapid fault neutralization. An apparatus for managing an electrical fault in an electrical system can include a bridging member configured to establish a conductive pathway between contact points that are at differing electrical phase potentials within the electrical system. The apparatus can include a propulsion system configured to cause movement of the bridging member towards the contact points in response to the electrical fault in the electrical system, thereby initiating the conductive pathway. In this way, the apparatus responds to the electrical fault by initiating a controlled electrical arc through the conductive pathway.
H02H 1/00 - Details of emergency protective circuit arrangements
H01H 9/50 - Means for detecting the presence of an arc or discharge
H01H 83/20 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
H02H 3/02 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details
43.
FOUR BAR LINKAGE MECHANISM FOR CIRCUIT BREAKER TO ROTATE MOVABLE CONDUCTOR AND OPERATING HANDLE IN OPPOSITE DIRECTIONS
A multi-pole plug-on miniature circuit breaker includes a single operating mechanism. A four bar kinematic linkage used in the operating mechanism simplifies the manufacturing and assembly of the circuit breaker, and reduces the force needed to actuate the operating mechanism. The operating mechanism is operably coupled to the movable conductors of all poles such that the operating mechanism rotates all movable conductors simultaneously when the operating mechanism is actuated. The kinematic linkage is positioned between the lateral boundaries of only one of the pole assemblies, but the trip mechanisms of all of the pole assemblies are mechanically linked to one another, such that actuation of any one of the trip mechanisms actuates the operating mechanism. The operating mechanism is designed such that an operating handle connected to the operating mechanism rotates in a direction opposite the direction of rotation of the movable conductors.
A transitional USB receptacle has one USB PD port and one USB-C port (non-PD). The receptacle includes flyback topology for AC/DC conversion, a bypass circuit, a buck converter, and a USB controller that determines the voltage demands of external devices connected to the USB-C and PD ports. The flyback topology uses a transformer with two sets of windings that produce different output voltages. The bypass switch is configured to ensure that only voltage signals under 10V are input to the buck converter, resulting in a different one of the transformer output voltages being input to the buck converter under different load demands. This enables the buck converter to more efficiently produce a 5V at the USB-C port when the USB PD port needs to simultaneously supply either 15V or 20V, and also enables the buck converter to more efficiently produce a 5V or 9V output at the USB PD port.
An exhaust gas recirculation pump for an internal combustion engine that includes an electric motor assembly having an electric motor disposed within an electric motor housing. A roots device is coupled to the electric motor. The roots device includes a housing defining an internal volume. Rotors are disposed in the internal volume and connected to the electric motor. A bearing plate is attached to the housing wherein the bearing plate and an outer cover attached to the bearing plate defines an oil cavity. A transmission assembly is positioned on an opposing side of the housing relative to the electric motor and in the oil cavity.
F04C 18/12 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
In one embodiment, a system for determining appropriate ratings of one or more fuses within a fuse housing is provided. The system includes at least one sensor configured to measure operational data associated with the one or more fuses, and a controller coupled to the at least one sensor. The controller is configured to perform operations including receiving the operational data from the at least one sensor, comparing the operational data with predetermined values associated with the one or more fuses, and generating a fuse message based on the comparison. The fuse message includes information indicating whether the one or more fuses are associated with appropriate ratings.
A battery pack having battery modules and an elastically deformable connector system for use in connecting said battery modules to one another. The elastically deformable connector system comprising busbar assembly having a busbar with a first peripheral portion, a second peripheral portion, and an elastically deformable intermediate portion located between the first and second peripheral portions. The busbar assembly also includes a first male connector assembly coupled to the first peripheral portion of the busbar, a second male connector assembly coupled to the second peripheral portion of the busbar, and a busbar housing that encloses a substantial extent of the busbar. Wherein after the busbar assembly is electrically connected to a pair of battery modules in the battery pack, the intermediate portion is configured to elastically deform to compensate for each of compression movement and expansion movement of the pair of battery modules.
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar
A separable electrical connector includes: an electrically insulating body including an open end and an interior surface; an electrically conductive shield on the interior surface; an electrically conductive piston inside the electrically insulating body and in contact with the electrically conductive shield; a contact assembly including: an electrically conductive contact connected to the electrically conductive piston; and an electrically insulating contact housing surrounding the electrically conductive contact; and an elastic member surrounding the electrically insulating contact housing.
A rotary Thomson coil actuator for use in a multi-pole circuit interrupter is provided and includes: an insulating cylinder, a plurality of pole assemblies, and a number of Thomson coil arrangements. Each pole assembly includes two stationary conductors and one rotating conductive arm. Each stationary conductor includes a stationary contact. The rotating conductive arm is fixedly coupled to the insulating cylinder and includes two movable contacts, with each movable contact corresponding to one of the stationary contacts. Each Thomson coil arrangement includes a conductive plate, a first Thomson coil, and a second Thomson coil. The conductive plate is fixedly coupled to the insulating cylinder, and the two Thomson coils face opposing sides of the conductive plate. The opposing orientations of the two Thomson coils relative to the conductive plate results in the repulsion force exerted by each of the two coils on the conductive plate being additive.
The present disclosure relates to rotational sensing systems for use in controlling the positions of flight control surfaces. The rotational sensing systems are integrated with actuators used to drive pivotal movement of the flight control surfaces and are configured to ensure higher accuracy in sensing angle changes and/or lack of angle changes of the flight control surfaces.
A rotary Thomson coil actuator for use in a multi-pole circuit interrupter is provided and includes: an insulating cylinder, a plurality of pole assemblies, and a number of Thomson coil arrangements. Each pole assembly includes two stationary conductors and one rotating conductive arm. Each stationary conductor includes a stationary contact. The rotating conductive arm is fixedly coupled to the insulating cylinder and includes two movable contacts, with each movable contact corresponding to one of the stationary contacts. Each Thomson coil arrangement includes a conductive plate, a first Thomson coil, and a second Thomson coil. The conductive plate is fixedly coupled to the insulating cylinder, and the two Thomson coils face opposing sides of the conductive plate. The opposing orientations of the two Thomson coils relative to the conductive plate results in the repulsion force exerted by each of the two coils on the conductive plate being additive.
An integrated multi-phase inductor component assembly includes a multi-piece magnetic core that may be easily assembled with multiple coils arranged in a mirror-image relationship in the magnetic core. The coils include vertically extending, planar main winding sections extending in spaced apart but parallel vertical planes and horizontal sections extending in coplanar relationship on top and bottom sides of the magnetic core for surface mounting to a circuit board or through hole mounting to another circuit board or another component in power supply circuitry for an electronic device.
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
In one embodiment, a cover for a fuse holder assembly that is configured for one or more working fuses connected in an electrical circuitry is provided. The cover includes a cover housing comprising one or more slots configured to house one or more spare fuses, and a mounting mechanism that is coupled to the cover housing. The one or more spare fuses are disconnected from the electrical circuitry. The mounting mechanism is configured to secure the cover housing to the fuse holder assembly.
A side gear rotatable about an axis, the side gear includes a plurality of gear teeth extending laterally therefrom; a casing member rotatable about the axis, the casing member covering the side gear; one or more bores formed in the casing member, the one or more bores extending in a direction parallel to the axis; and one or more pinions, each pinion having an upper surface and a length, being inserted in a corresponding bore of the one or more bores in the direction parallel to the axis, and having one or more pinion teeth extending laterally therefrom, wherein each pinion is configured to mesh with the side gear via the one or more pinion teeth, and wherein along a first portion of the length of the pinion starting from the upper surface thereof, a size of the one or more pinion teeth is greater than a size of the one or more pinion teeth along a second portion of the length of the pinion.
F16H 48/285 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using self-locking gears or self-braking gears with self-braking intermeshing gears having parallel axes and having worms or helical teeth
F16H 48/11 - Differential gearings with gears having orbital motion with orbital spur gears having intermeshing planet gears
The disclosure provides a method of detecting arc faults in a DC power distribution system. The method comprises: sampling, using one or more sensors, a voltage signal on a conductor forming a current path of the power distribution system to generate a voltage signal sample vector; sampling, using the one or more sensors, a current signal in the conductor to generate a current signal sample vector; generating one or more feature vectors based on the voltage signal sample vector and the current signal sample vector and having fewer elements than the current signal sample vector or the voltage signal sample vector; providing the one or more feature vectors to an arc fault classification model; and receiving as an output of the arc fault classification model an indication of whether an arc fault is occurring in the power distribution system.
An electrical connector assembly includes a first connector member, a second connector member configured for connection with the first connector member, a first insulator disposed at least partially in the first connector member and/or the second connector member, a second insulator disposed at least partially in the first connector member and/or the second connector member, and a circuit board configured to be disposed at least partially between the first insulator and the second insulator in a connected configuration of the electrical connector assembly. The circuit board may include an electrical characteristic sensor and/or a temperature sensor.
An industrial device (1) is specified, comprising - a non-isolated USB interface (2) with a USB supply voltage connection (3) and a USB ground connection (4), - an internal supply voltage connection (5), - an internal ground connection (6), - a reverse polarity detector (7) comprising a first transistor device (8), and - an electrical current path disconnector (9) comprising a second transistor device (10), wherein - the reverse polarity detector (7) and the electrical current path disconnector (9) are connected to the non- isolated USB interface (2) and to the internal supply voltage connection (5) and the internal ground connection (6). Furthermore, a system is specified.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02H 3/18 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to reversal of direct current
58.
ELECTRIC CIRCUIT HEALTH INDICATOR AND EFFICIENCY IMPROVEMENT DEVICE AND METHOD
A circuit health, efficiency and capacity (CHEC) monitor for use in an electrical power distribution system including a control panel connected to a 3-phase power source and a plurality of loads is provided. The CHEC monitor includes: a power parameters measurement component structured to measure power parameters of a power bus connected to the control panel; a metrics value calculator structured to receive the measured power parameters and determine metric values of a plurality of metrics over first periodic intervals; a metrics average calculator structured to obtain an average for each metric value over a second periodic interval; a metrics normalizer structured to normalize the average for each metric value and obtain a normalized metric index for each metric; a CHEC Index selector structured to select a maximum metric index from the normalized metric indexes; and a CHEC Index indicator structured to provide a latest CHEC Index.
A smart powerline event and health monitoring device (SEHM) structured to be disposed in a power distribution system for a building structure located in a utility system is provided. The SEHM includes: a voltage measurement device connected to line conductors and structured to measure changes in line voltages and frequencies; a surge protection device (SPD) connected to the line conductors and the neutral conductor and structured to shunt electrical energy from a voltage surge to the neutral conductor; a controller connected to the voltage measurement device and the SPD and structured to receive the measured changes from the voltage measurement device; and a communication module connected to the controller, the communication module communicatively coupled to a cloud and a mobile user device having an energy monitoring application installed therein, the communication module structured to transmit the data to the cloud in a wireless connection.
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
60.
OPTICS-BASED REMOTE MONITORING OF PROTECTION DEVICES
A device includes a light source configured to emit light as an indication that an electrical protection device has operated. The electrical protection device is configured to operate in response to a fault condition detected on an energized conductor to which the electrical protection device is electrically coupled. The device further includes an optical device coupled to the light source and configured to channel the emitted light from a first end portion of the optical device to a second end portion of the optical device, and a photosensor optically coupled to the second end portion of the optical device and configured to detect the emitted light.
H02H 3/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
A cooling system includes a main coolant loop through which a first type of coolant (e.g., water or glycol) circulates to cool a heat load. During normal operation, cooling of the first type of coolant is performed by a heat exchanger using ambient or ram air. During peak loads, however, cooling of the first type of coolant is supplemental using an expendable coolant (e.g., supercritical carbon dioxide, liquid helium, liquid nitrogen, etc.). The expendable coolant can be vented from the cooling system after use in cooling the first type of coolant.
F28F 27/02 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
A method of simultaneously commissioning a plurality of smart circuit breakers to an energy control website in an IoT Hub in a cloud is provided. Each smart circuit breaker is structured to be coupled to a power source and respective load and provide circuit protection in a fault event. The method includes: forming, by the plurality of smart circuit breakers, a Wi-Fi network; commissioning a master smart circuit breaker to the energy control website in the IoT Hub via a mobile energy control application disposed in a mobile user device; simultaneously commissioning slave smart circuit breakers to the energy control website in the cloud via the mobile energy control application and the master smart circuit breaker; and connecting the master smart circuit breaker and the slave smart circuit breakers to the IoT Hub via an access point.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
A valve for a pressurizable enclosure includes a valve head provided at a first portion of the valve, a connecting portion extending between the first portion and a second portion of the valve, a chamber comprising a hollow portion, and a first body disposed within the chamber. The valve head is configured to selectively permit fluid flow into or out of the pressurizable enclosure. The hollow portion of the chamber is provided at least partially within the connecting portion and configured to contain a filler material. The first body is configured to be movable within the chamber during valve operation.
Compliant electrical circuit protection devices are described for use in hazardous environments without presenting ignition risks for potentially explosive environmental conditions. Sensing features and systems may evaluate wiring limits and user selected settings for compatibility, detect loose connections and operating parameters to ensure safe operation of the device, and to intelligently diagnose and manage issues of concern for the circuit protection devices as well as the larger electrical power system.
H01H 89/00 - Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
65.
CIRCUIT BREAKER AND METHOD FOR DETERMINING A SEQUENCE OF ELECTRICAL PULSES FOR A CIRCUIT BREAKER
A circuit breaker (1) for an electrical circuit is provided, including - a switching unit (2) comprising - a semiconductor switching module (5), and - a clamping device (6) connected in parallel to the semiconductor switching module (5), and - a capacitor (7) connected to the switching unit (2), wherein - the semiconductor switching module (5) is configured to break the electrical circuit, - the semiconductor switching module (5) is configured to pre-charge the capacitor (7) with a sequence of electrical pulses. Further, a method for operating a circuit breaker and a method for determining a sequence of electrical pulses for a circuit breaker are provided.
H02H 9/00 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
H02H 3/087 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current for DC applications
H03K 17/16 - Modifications for eliminating interference voltages or currents
H01H 9/54 - Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
A transmission can include a shaft arrangement including an input shaft configured to couple to a primer mover and an output shaft coaxially aligned with the input shaft; a plurality of drive gears supported by the shaft arrangement and including a first drive gear, a second drive gear, and a third drive gear; a countershaft arrangement including a first and second countershaft supporting a plurality of pinion gears intermeshed with the first, second, and third drive gears; a clutch arrangement including a first clutch assembly and a second clutch assembly operable to lock the first, second, and third drive gears to the shaft arrangement to selectively provide four gear ratios between the input and output shafts.
F16H 3/097 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts the input and output shafts being aligned on the same axis
F16H 3/085 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts with more than one output shaft
F16H 63/24 - Final output mechanisms thereforActuating means for the final output mechanisms each of the final output mechanisms being moved by only one of the various final actuating mechanisms
F16H 63/30 - Constructional features of the final output mechanisms
An air handling sub-system within a fuel cell system is configured to condition the air for the fuel cell. The air handling sub-system conditions the air by dosing water into the air at or near the compressor. Liquid water is introduced into the compressor to form a thin film. The compressor comprises a body defining an interior cavity extending between an inlet and an outlet; a rotor disposed within the interior cavity and a hydration system including at least one hydration passage extending through the body to deliver the liquid water to the interior cavity.
F04C 18/12 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 18/08 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
A busbar cooling system includes an enclosure and a conductive assembly. The enclosure has a first non-conductive housing and a second non-conductive housing that are configured to permit fluid to flow through the busbar cooling system, the upper housing having an upper internal wall arrangement and the lower housing having a lower internal wall arrangement, wherein the upper and lower internal wall arrangements collectively define a plurality of distinct and concentrically arranged cavities. The conductive assembly is configured to permit electrical current to pass through the busbar cooling system, said conductive assembly includes an internal cooling core having a plurality individual conductors that are concentrically arranged in a spaced apart relationship to one another, and wherein each cavity is configured to receive a substantial extent of one of the conductors of the internal cooling core.
A hybrid switch assembly for switching AC current in a circuit interrupter includes a power electronics (PE) branch connected in parallel with a mechanical branch. The PE branch includes two series connected modules, PE+ and PE−. The mechanical branch includes two series connected pairs of separable contacts, MEC+ and MEC−. The PE+ module and MEC+ contacts interrupt current during a positive voltage half-cycle, and the PE− module and MEC− interrupt current during a negative voltage half-cycle. Including two sets of separable contacts requires only the PE module oriented in the direction of the current at the time of interruption to be powered on and enables the other PE module to remain powered off, so that excess resistive heat losses and impedance-based losses that would otherwise be incurred by powering on both PE modules are avoided.
H01H 33/28 - Power arrangements internal to the switch for operating the driving mechanism
H01H 71/12 - Automatic release mechanisms with or without manual release
H02H 3/05 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with means for increasing reliability, e.g. redundancy arrangements
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
70.
MEDIAN FILTER TO PREVENT SUB-CYCLE NUISANCE TRIGGERING IN AN ELECTRICAL POWER SYSTEM
A power quality monitor for an electrical power system prevents nuisance alarms and unwanted masking of non-trivial voltage disturbances by employing median filtering of sampled voltage values while monitoring voltage conditions of the electrical power system.
A system includes: a separable connector including an electrically insulating housing and an electrically conductive probe and an insert. The insert includes: an electrically insulating body including an open end configured to receive the electrically conductive probe; an electrically conductive assembly inside the electrically insulating body and configured to electrically connect to the electrically conductive probe; and an arc snuffer. The arc snuffer includes: an inner ablative arc-quenching portion that surrounds an open interior between the open end and the electrically conductive assembly, the open interior being configured to receive the electrically conductive probe; and a layer on exterior surface of the inner ablative arc-quenching portion. The layer is configured to produce a visible indicator related to a remaining life of the insert when the layer is exposed to an arc.
H01R 13/53 - Bases or cases for heavy dutyBases or cases with means for preventing corona or arcing
H01R 13/40 - Securing contact members in or to a base or caseInsulating of contact members
H01R 13/637 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure for disengagement only by fluid pressure, e.g. explosion
A motor arrangement includes a solenoid disposed within a cavity of the motor stator. The solenoid is configured to axially move the motor shaft arrangement. In certain examples, the solenoid causes the motor shaft arrangement to selectively engage a torque limiting arrangement or other device. The motor shaft arrangement may be biased into engagement with the device.
H02K 7/12 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
A system includes: a current interrupter that includes a first terminal, a second terminal, and a switching apparatus between the first terminal and the second terminal. The system also includes an impedance assembly configured to sense a voltage at one or more of the first terminal and the second terminal, the impedance assembly including a linear impedance and a reinforcing structure on an exterior surface of the linear impedance. The reinforcing structure includes an electrically insulating material wrapped around the linear impedance.
G01R 31/327 - Testing of circuit interrupters, switches or circuit-breakers
G01R 1/20 - Modifications of basic electric elements for use in electric measuring instrumentsStructural combinations of such elements with such instruments
H01H 33/02 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means Details
74.
PASSIVE COOLING APPARATUS FOR COOLING OF IMMERSION FLUID AND POWER CONVERSION EQUIPMENT AND RELATED SYSTEMS
A passive fluid cooling system is provided including an immersion cooling tank including a volume of fluid and a plurality of fluid cooling channels attached to exterior sidewalls of the immersion cooling tank. The flow of the fluid through the plurality of fluid cooling channels positioned on the exterior sidewalls of the immersion cooling tank removes heat from the volume of fluid.
In one embodiment, a method includes accessing a measurement of power flow on a tie line performed at a pre-determined uniform interval, detecting that a measurement of power flow exceeds a maximum power demand contract at a first time instance, entering into an excess demand compensation mode, where an excess energy demand is controlled to be zero during the excess demand compensation mode, and wherein the excess energy demand at a time instance after the first time instance is calculated based on measurements of power flow on or after the first time instance relative to the maximum power demand contract until the excess energy demand becomes zero, and modifying one or more power setpoints during the excess demand compensation mode to control the excess energy demand to be zero within the pre-determined amount of time from the first time.
A differential assembly includes an axle shaft retainer configured to mount within the retainer passage of the differential case. An example axle shaft retainer includes: a spacer disposed at a first end of a stem and a mounting arm disposed at a second end of the stem. The axle shaft retainer attaches to the differential case using the mounting arm. In an example, the axle shaft retainer is cantilevered off the differential case using the mounting arm.
F16H 48/11 - Differential gearings with gears having orbital motion with orbital spur gears having intermeshing planet gears
77.
SCALABLE MANUFACTURING PROCESS FOR MANUFACTURING HIGH-ELECTRICAL CONDUCTIVITY ALUMINUM-GRAPHENE (AL-GR) AND ALUMINUM-CARBON NANOTUBE (AL-CNT) METAL MATRIX COMPOSITES (MMCS)
Disclosed herein are scalable processes for manufacturing high-conductivity aluminum matrix composite materials. In some cases, a process as described herein enables the production of high electrical conductivity aluminum-graphene or aluminum-carbon nanotube composites suitable for diverse industrial applications. An example process can include combining graphene or carbon nanotubes into aluminum or a heavier metal powder and introducing the mixture into a flowing molten aluminum stream. In some cases, the process can include applying ultrasonication to the liquid aluminum flow, casting the molten aluminum, and subjecting a resultant sheet to a rolling process including an asymmetric rolling process. In some cases, the process can include annealing to form an annealed sheet product. In some cases, the process can include rolling, extruding, or wire drawing an annealed sheet product to align the grains in a direction corresponding to the flow of electrical current when the composite material is in use in the form of flat plates (e.g., bus bars), sheets, wires, foils, etc.
A method and apparatus (110) for forecasting failure for electrical devices in a circuit is provided. Energy meter data is acquired (231) from an energy meter (100), comprising load data corresponding to devices in a circuit. This is disaggregated into device specific load data. Events are detected in the disaggregated load data. Forecast changes in values of operational parameters for the devices in the circuit due to a detected event are determined (241) with a temporal fusion transformer model. Potential future events are determined (242) based on the forecast changes in values of operational parameters for the devices, and a notification is output (243) indicating a potential future breakdown of a device in the circuit based upon the forecast potential future events.
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
A rocker arm assembly is configured to selectively actuate one or more exhaust valves. A method for timing valve lift events comprises actuating an exhaust rocker arm based on an exhaust lift profile and actuating an engine brake rocker arm based on an engine brake profile. The exhaust lift profile and the engine brake lift profile can have cross points. A method disclosed comprises minimizing an angle defined between the exhaust lift profile and the engine brake lift profile at a cross point.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
A test circuit (11) comprises a supply terminal (12), a reference potential terminal (13), a first number N of digital terminals (14 - 16) and a first number N of switches (17 – 19), a supply input terminal (35), and a support resistor (37). The support resistor (37) is coupled to the supply terminal (12) and to the supply input terminal (35). A switch (17) is coupled to the supply terminal (12) and to a digital terminal (14). An industrial device (50) comprises a supply line (51), a reference potential line (73), a control circuit (52), a second number M of device terminals (53 – 55) and a presence detector (83) coupled to the supply line (51) and to the reference potential line (73). The presence detector (83) is configured to detect a first value of a supply voltage (US1) at the supply line (51) when the presence detector (83) is in a high resistive state, and a second value of the supply voltage (US1) when the presence detector (83) is not in a high resistive state.
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R 31/319 - Tester hardware, i.e. output processing circuits
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
A Roots-type device can include a housing assembly having a first opening and a second opening in fluid communication with an internal cavity; a pair of identical rotors oppositely arranged within the housing internal cavity, each of the pair of rotors having a longitudinal axis and plurality of lobes, each of the lobes defining an end face extending between a first longitudinal side of the rotor lobe and a second longitudinal side of the rotor lobe; and a recess port defined within the housing assembly and being axially spaced from the end faces of the rotor lobes, the recess port placing the first longitudinal side of one of the rotor lobes in fluid communication with the second longitudinal side of the rotor lobe such that the housing first opening is placed in fluid communication with the housing second opening. The device can also be provided be provided with an inlet nozzle structure in fluid communication with the first opening, the inlet nozzle tapering towards the first opening and being configured such that a nozzle velocity of a working fluid passing through the nozzle is at least equal to the rotor mesh axial lead velocity.
F04C 18/12 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
F01C 1/12 - Rotary-piston machines or engines of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
A luminaire (1000) includes a housing (1005) and a light-emitting diode ("LED") assembly (1040) connected to the housing (1005). The LED assembly includes a printed circuit board assembly (1060), a plurality of LEDs connected to the printed circuit board assembly (1060), and a reflector (1055) that includes a plurality of LED receptacles (1065). Each one of the plurality of LED receptacles (1065) receives a respective one of the plurality of LEDs. An encapsulant (1070) fills each one of the plurality of LED receptacles (1065) and covers the respective one of the plurality of LEDs.
A switch includes: a first stationary electrical contact; a second stationary electrical contact; a movable electrical contact assembly attached to the second stationary electrical contact and configured to separate from the first stationary electrical contact to open the switch; a first arcing contact on the movable electrical contact assembly; a second arcing contact on the first stationary electrical contact; and a secondary arcing contact electrically connected to the movable electrical contact assembly. The secondary arcing contact is connected to the second arcing contact when the switch is closed and remains connected to the second arcing contact during at least part of an opening operation of the switch.
An arc chute apparatus includes: a housing that includes a first sidewall, a second sidewall, and an arc runner. The arc runner includes: a base portion integral with the housing and extending between the first sidewall and the second sidewall; and a tab that extends from the base portion and is configured to be oriented toward an electrical contact of a switching device. The arc runner is a ferrous material. The arc chute apparatus also includes an arc guide between the first sidewall and the second sidewall; an ablative insert in the housing; and mounting features configured to hold a plurality of ferrous plates in a spaced apart arrangement in the housing between the first sidewall and the second sidewall and between the arc guide and the arc runner.
A control system includes: a controller configured to: access an estimated torque and estimated speed of a motor mechanically coupled to an impeller of a centrifugal machine; access at least one set of pre-determined performance data values associated with a known speed of the impeller, where each set of pre-determined performance data values includes: a plurality of flowrate values and a plurality of performance metric values; determine an operating point of the centrifugal machine based on the estimated torque, the estimated speed, and the at least one set of pre-determined performance data values; compare the determined operating point to a best efficiency point (BEP) associated with the centrifugal machine; and determine whether to change the speed of the motor based on the comparison.
Some embodiments relate to a bidirectional power semiconductor switch with a first semiconductor circuit arrangement including a first Si or SiC MOSFET and a second Si or SiC MOSFET and a parallel connected first IGBT and a second IBGT.
Some embodiments relate to a bidirectional power semiconductor switch with a first semiconductor circuit arrangement including a first Si or SiC MOSFET and a second Si or SiC MOSFET and a parallel connected first IGBT and a second IBGT.
A control and driver unit controlling the first and the second silicon or silicon-carbide MOSFETs and the first and the second IGBTs is suggested, that, in a turning on process of the bidirectional power semiconductor switch, the control and driver unit is embodied to switch on at least one of the IGBTs in a first step, and to switch on at least one of the silicon or silicon-carbide MOSFET in a second step, and/or that—in an on-state of the bidirectional power semiconductor switch—the control and driver unit is embodied to keep the previously turned on silicon or silicon-carbide MOSFET and the corresponding IGBT in the on-states.
H03K 17/0812 - Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit
89.
DISTRIBUTED SENSOR DATA COLLECTION FOR OPTIMIZED, CENTRALIZED TRAINING OF MACHINE LEARNING MODELS
Some embodiments relate to a method and system of optimizing sensor data collection for centralized training of machine learning models. The method comprises identifying a data prioritization technique; collecting sensor data and implementing the identified data prioritization technique to prioritize the data for storage and transmission to a centralized repository; transmitting the data to the centralized repository; training the machine learning model on the centralized repository using the transmitted data to predict or identify events, such as failure in vehicles and other machinery; evaluating the data prioritization technique using a forward pass of an autoencoder to create an output; and determining an adjustment to the data prioritization technique based on the output.
Systems and methods are described herein that improve grid performance by smoothing demand using thermal reserves. The smoothed demand can reduce peak loads as well as the ramp rate of demand that will otherwise require the use of inefficient, expensive generation sources. These improvements are tied to the selective switching on or off electrical loads that are coupled to thermal reserves, effectively using the thermal reserves as an energy storage mechanism. Historical data of past usage can be used to create load model and ensure that effects on customer comfort are minimized while still accomplishing the beneficial effects for the overall grid, which enables grid owners to both reduce their operational cost by avoiding expensive generation and improve system reliability by achieving more predictable power demand.
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
91.
SYSTEM AND METHOD FOR GENERATION OF KNOWEDGE GRAPHS USING PRE-EXISTING ONTOLOGIES
Some embodiments relate to a computer-implemented method and system, wherein the method includes generating a knowledge graph from a plurality of isolated data sources. The method includes reading data from the plurality of isolated data sources; analysing the data using semantic analysis and natural language processing vectorisation and obtaining a first knowledge graph ontology. An output from the analysis can be updated data processed based on data quality. A category of low quality data can include data having a data quality score below a predefined threshold. The method can include accessing the first knowledge graph ontology; obtaining information related to one or more previously completed knowledge graphs and ontologies; applying transfer learning to generate new candidate ontologies; utilising ranking scores to select a final ontology from the candidate ontologies; and generating a knowledge graph using the selected final ontology.
A tamper resistant shutter includes a base including a hot opening and a neutral opening; a hot slider including a first sloped portion disposed proximate the hot opening and a first blocking portion structured to block the neutral opening; a neutral slider including a second sloped portion disposed proximate the neutral opening and a second blocking portion structured to block the hot opening; and a spring disposed between the hot slider and the neutral slider and structured to bias the tamper resistant shutter to a closed state, wherein upon pressing on the first sloped portion, the hot slider slides and the first blocking portion moves and no longer blocks the neutral opening, wherein upon pressing on the second sloped portion, the neutral slider slides and the second blocking portion moves and no longer blocks the hot opening.
H01R 13/453 - Shutter or cover plate opened by engagement of counterpart
H01R 24/78 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts
A cylinder deactivation roller lifter may include an outer body including an inner surface defining an inner cavity and a latching shoulder extending radially outward from the inner surface. A lost motion spring is disposed between the outer body and the inner carriage. The cylinder deactivation roller lifter may include an inner carriage disposed within the inner cavity and defining a latch pin passage. The cylinder deactivation roller lifter may include a latch pin disposed within the latch pin passage, the latch pin including a spring cavity and a pin shoulder. A latch pin spring biases the latch pin toward the latched position. The cylinder deactivation roller lifter is moveable between a cylinder deactivation position where the latch pin is disengaged from the latching shoulder and a latched position where the latch pin is engaged with the latching shoulder.
An apparatus and method for determining an optimised arrangement of a photovoltaic system for a geographic area are provided. Load data and solar irradiation data for the geographic area, and arrangements of pre-existing photovoltaic panels and potential arrangements for one or more additional photovoltaic panels, are acquired (201). Photovoltaic parameters are determined (202) based upon the arrangements of pre-existing photovoltaic panels and the potential arrangements for additional photovoltaic panels. Power consumption patterns based on the load data, and photovoltaic generation patterns based on the solar irradiation data, are determined (203). An objective function is determined (204) to meet load requirements with photovoltaic placement. The optimised arrangement of the photovoltaic system is determined (205) using the objective function and the photovoltaic parameters.
A base mount for an electrical component includes a base including an attachment portion for receiving one or more fasteners for securing the base to a support. A mount portion extends from the attachment portion and defines a mount area for one of receiving or engaging the electrical component to locate the electrical component relative to the base. The mount portion further defines a plurality of openings communicating an interior space of the mount portion with an exterior of the mount portion for routing conduits or cables into the interior space of the mount portion. A support bracket is releasably attachable to the mount area of the base for securing the electrical component to the base.
A recirculation blower (20) can be used to recirculate fluid (e.g., hydrogen and/or air) through a fuel cell system. The blower includes a pair of rotors (30,32) disposed within a housing (22). Lobes of the rotors are intermeshed together. In certain blowers, each of the lobes defines a hybrid profile. For example, the hybrid profile may be a combination of at least two of circular, cycloidal, and involute curves. In certain blowers, at least one of the lobes defines a hollow passage (33) extending between opposite open ends. Plugs (60) are disposed at the open ends to close the hollow passage. The plugs are sufficiently short to be spaced from each other along the hollow passage. In certain examples, each of the lobes defines such a hollow passage.
F04C 18/08 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F04C 18/12 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
A cable gland includes a gland nut defining a longitudinal axis. The gland nut includes an interior wall defining a gland nut opening. A bushing is disposed within the gland nut. The bushing defines a bushing opening configured to receive a cable therein. A compression limiting assembly includes a compression limiter moveably disposed at least partially within the gland nut. A spring is disposed between the compression limiter and the bushing. A body defines a body opening configured to receive at least a portion of the cable therein. The body is configured to couple to the gland nut. Upon coupling of the gland nut to the body, the gland nut moves along the longitudinal axis compressing the bushing between the gland nut and the compression limiting assembly and around the cable.
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