120 results about "Interrupter" patented technology

The present disclosure relates to electrical wiring devices, specifically ground fault circuit interrupters (GFCIs) with integrated self-test and miswire detection capabilities. The device comprises line and load hot terminals, line and load neutral terminals, a differential transformer with a sense coil, a circuit interrupter, and a controller. The controller is configured to periodically initiate a simulated fault self-test, allowing the fault condition to persist in a non-trip test state and triggering the circuit interrupter only if a fault is not detected within a predetermined period. The controller also detects miswire conditions by monitoring power at the line hot terminal during trip events and maintains a miswire state in memory if improper wiring is detected.

The utility model provides a high-frequency anti-interference ground fault circuit interrupter and a GFCI circuit, which have an end-of-life self-checking function and comprise a high-frequency GFCI. The high frequency GFCI includes a circuit breaker and a relay circuit for controlling the circuit breaker. The high-frequency GFCI further comprises a fault detection circuit and a latch circuit. The utility model also provides an isolation circuit used for isolating the latch circuit and the fault detection circuit during a self-test period. And the self-checking circuit is used for testing the latch circuit and the fault detection circuit. An end-of-life circuit is also provided for disabling the high frequency GFCI when a self-test fails.

An apparatus suitable for use in an air-conditioning system and configured to provide a plurality of selectable capacitance values includes a plurality of capacitive devices and a pressure interrupter cover assembly. Each of the capacitive devices has a first capacitor terminal and a second capacitor terminal. The pressure interrupter cover assembly includes a deformable cover, a set of capacitor cover terminals, a common cover terminal, and a set of insulation structures. The apparatus also includes a conductor configured to electrically connect the second capacitor terminal of at least one of the capacitive devices to the common cover terminal.

Machine learning-based arc fault detection and nuisance trip avoidance includes (i) obtaining data representing properties of an electrical signal sensed by an arc-fault circuit interrupter, (ii) interpreting the properties of the electrical signal as indicating an arc fault, the interpreting being based on application of an initial artificial intelligence (AI) model, (iii) based on the interpreting, opening a switch of the arc-fault circuit interrupter to interrupt the conduction of a supply of power to a load output terminal, (iv) receiving an indication that the properties of the electrical signal do not reflect an arc fault, such indication being that the arc-fault circuit interrupter is to refrain from arc-fault-based opening of the switch, (v) obtaining an updated AI model, where the updated AI model undergoes training using the data representing the properties of the electrical signal as an example of the absence of an arc fault, and (vi) deploying the updated AI model in place of the initial AI model.

A ground fault circuit interrupter (GFCI) device includes a ground fault detection module for detecting a ground fault in a neutral line of a plurality of current carrying lines and generating a ground fault signal in response thereto, including a neutral line detection coil having a magnetic core made of a silicon steel and through which the current carrying lines pass; a leakage current detection module for detecting the ground fault signal and detecting a leakage current signal on the current carrying lines, and generating a zero sequence current fault signal in response to either signal; and a drive module for receiving the zero sequence current fault signal and driving a switch module to disconnect the electrical connection of the current carrying lines in response thereto. The GFCI device can avoid false tripping when high frequency currents flow through the current carrying lines, improving user experience and enhancing safety.

A circuit breaker includes a transient fault thermal management device including an enclosure having an inner cavity and a phase change material (PCM) disposed within the inner cavity, the transient fault thermal management device structured to provide a transient heat flow path via which heat is dissipated during a fault; a power electronic module connected between the power source and the load and structured to switch OFF to interrupt current flowing to the load during the fault; and a steady state thermal management device including a base, a body extending upward from the base, and a plurality of fins extending downward from the base, the body being attached to the power electronic module on one side and surrounded by the enclosure, the steady state thermal management device structured to provide a steady state heat flow path exclusive of the PCM and dissipate heat during a normal operation.

The present invention has been devised to solve the above-described problems, with the objective of the present invention being to provide a load interrupter switch having a function for preventing reconnection due to rebound that may occur during interruption. The load interrupter switch according to one aspect of the present invention is provided with a shaft lever and a rebound prevention latch assembly, thus preventing rebound from occurring after interruption.

A circuit interrupter includes a housing; line conductors; load conductors; an isolation switch assembly including isolation switches disposed within the housing, one solenoid actuator disposed external to the housing and between two line conductors, the one solenoid actuator structured to actuate the isolation switches to be open or closed based on a command signal, and an insulating connector connecting the isolation switches and the one solenoid actuator; and a power electronic module disposed within the housing and including a controller and electronic interrupters connected to the controller, the isolation switches and the load conductors, the controller structured to generate and transmit a control signal comprising the command signal to the electronic interrupters or the solenoid actuator, the electronic interrupters structured to allow the current to flow during normal operation and interrupt the current from flowing to the load in the event of a fault based on the control signal.

In one example, a circuit interrupter includes a bus bar configured to conduct a current and configured to connect to an electrical grid. The circuit interrupter includes a bus bar cutter configured to sever the bus bar, a temperature compensation circuit including a resistance-temperature-coefficient (RTC) circuit configured to provide a temperature-compensated delay, and a detonator firing circuit configured to trigger the bus bar cutter in response to the temperature-compensated delay. The temperature-compensated delay is based on a voltage across a resistance temperature detector (RTD).

A system, method, and apparatus for electrically shielding heated components, and more particularly, a system, method, and apparatus for electrically shielding electrically heated components in a manner compatible with a GFCI (Ground Failure Circuit Breaker) protected circuit are provided. An example includes an electrically shielded heating assembly including: a conductor, where the conductor is a heating element connected through a GFCI between a power line and a neutral line of an electrical circuit; and a shield proximate to the conductor and connected to the GFCI, where the shield receives a portion of the current from the conductor and returns the portion of the received current to the GFCI.

The invention relates to a computer implemented method for determining an estimated travel curve of an interrupter unit of a high or medium voltage device, including the steps of—receiving a reference travel curve for the interrupter unit of the high or medium voltage device, wherein the reference travel curve describes relative positions of arcing contacts of the interrupter unit with regard to each other over time during an opening and / or closing operation of the interrupter unit, receiving auxiliary switch data representing transition timepoints of an auxiliary switch A and transition timepoints of an auxiliary switch B of the interrupter unit during opening and / or closing operation, wherein the auxiliary switch data has been acquired by performing multiple opening and / or closing operations of the interrupter unit, and determining an estimated travel curve by taking the received reference travel curve and the received auxiliary switch data into account.

A system and method for operating a vacuum interrupter in a self-resetting interrupter. The method includes detecting fault current, opening the vacuum interrupter a first time using power harvested from the current transformer when the fault current is detected, and storing a polarity of the detected fault current when the vacuum interrupter is opened. The method then determines a close time to close the vacuum interrupter so that the current has the same polarity that was stored when the vacuum interrupter was opened and that actuation of closing the vacuum interrupter ends at a current zero crossing, closes the vacuum interrupter at the close time, and opens the vacuum interrupter a second time after the vacuum interrupter is closed using power harvested from the current transformer.

A method for controlling a triode for alternating current (TRIAC), applied to a device, is provided. A voltage is connected to an anode of the TRIAC, and a scaled down voltage is fed into an analog-to-digital converter (ADC) pin of the device. The method includes (1) tracking the voltage at the anode of the TRIAC; (2) applying a trigger pulse to a gate of the TRIAC for a preset time based on the voltage at the anode of the TRIAC reaching a threshold; and (3) detecting whether there is a dip that corresponds to the preset time in the scaled down voltage at the ADC pin of the device. The method further includes, in response to not detecting a dip corresponding to the preset time in the scaled down voltage at the ADC pin, (4) waiting an amount of time; and (5) repeating the steps (1)-(3).

An uninterruptible power supply according to this invention includes an uninterruptible-power-supply module including a power conversion housing accommodating a power converter. The uninterruptible power supply includes a bus part arranged outside the power conversion housing of the uninterruptible-power-supply module, and configured to deliver input / output power from / to the uninterruptible-power-supply modules. Also, the uninterruptible power supply includes a module interrupter provided between the uninterruptible-power-supply module and the bus part and configured to electrically entirely disconnect the uninterruptible-power-supply module from the bus part. Also, the uninterruptible power supply includes a bypass circuit part including a switching circuit for switching electrical conduction, and configured to supply AC power from a bypass AC power supply to the load without connection through the uninterruptible-power-supply module.

A power cord photocoupler leakage current detection interrupter (LCDI) includes: a switch unit provided between an input terminal and an output terminal, and configured to control the input terminal and the output terminal to turn on or off; a leakage current detection line wrapped with a power cord connected between the switch unit and the output terminal, and configured to detect whether the power cord has a leakage current; and a leakage current interruption unit connected to the switch unit and the leakage current detection line, and configured to detect a leakage current signal of the leakage current detection line, and send a corresponding control signal to the switch unit according to the leakage current signal.

The invention provides an arc fault breaker, an energy storage unit, an energy storage device and an energy storage system, relates to the technical field of energy, and is used for improving the sampling capability of the arc fault breaker and further improving the accuracy of arc fault detection. The arc fault breaker comprises a first current sensor, a second current sensor, a first signal detection circuit, a second signal detection circuit and a controller. The first current sensor and the second current sensor are used for outputting a first sampling signal and a second sampling signal respectively according to a current signal transmitted between the battery module and the converter; the first signal detection circuit is used for outputting a differential mode signal according to the first sampling signal and the second sampling signal; the second signal detection circuit is used for outputting a common-mode signal according to the first sampling signal and the second sampling signal; and the controller is used for disconnecting the battery module and the converter under the condition that the spectrum characteristic of the differential mode signal and the spectrum characteristic of the common mode signal are matched with the spectrum characteristic of the arc fault signal.

A device includes an electro-mechanical switching device having an open-circuit and closed-circuit conditions and a path of least resistance having a path input and a path output with the switching device between the input and the output. The device includes a bypass power switch device that comprises a solid-state circuit interrupter and that is configured to conduct current between the input and the output in response to an open-circuit condition of the switching device. The device includes a current sensor that is connected to the output and configured to detect a fault current event. The device includes an actuator that is coupled to the switching device and a controller that is configured to generate a trigger signal to activate the actuator to cause the open-circuit condition of the switching device and to interrupt the fault current event by the power switch device, based on the detected fault current event.

To provide a power distribution system capable of surely performing leakage protection in an off-grid facility having its own power supply SOLUTION: An off-grid power distribution system comprising: a power distribution system for distributing power from a private power supply independent of a commercial power supply to an outlet in a structure separated from the commercial power supply; and a main breaker provided in the power distribution system, wherein the outlet comprises an outlet with an earth leakage breaker.SELECTED DRAWING: Figure 1

A circuit interrupter includes an inductor module connected in series with a hybrid interrupter switch between a power source and a load. The inductor module includes a coupled inductor including a primary winding connected in series between the power source and the interrupter module, and a secondary winding connected to the power source on its line side. The load side of the secondary winding is connected to a first stage switching device that forms a switch between the secondary winding and the interrupter module. In normal current conditions, the first stage switching device and the hybrid interrupter switch remain closed. During a fault, the first stage switching device is first opened, which significantly increases the magnetic flux in the inductor module and the impedance of the circuit, and thus reduces the current through the interrupter module. The hybrid switch is then turned on to complete the interruption.

The invention discloses a breaker, power distribution equipment and a vehicle, and relates to the technical field of breakers, and the breaker comprises a pedestal which is provided with an arc extinguishing cavity; the sealing cover is arranged at the opening of the arc extinguishing cavity, and a first channel penetrating through the sealing cover is arranged in the sealing cover; the through-flow copper bar is parallel to the sealing cover, the through-flow copper bar penetrates through the sealing cover in the direction perpendicular to the thickness of the sealing cover, the through-flow copper bar comprises a thinned part, and the thickness of the thinned part is smaller than that of other parts of the through-flow copper bar; the piston is at least partially contained in the first channel, the projection of the piston in the thickness direction of the sealing cover at least partially coincides with the thinned part, the side wall of the arc extinguishing cavity surrounds the piston, an annular air channel is formed between the side wall of the arc extinguishing cavity and the piston, and the annular air channel surrounds the periphery of the piston in the circumferential direction of the piston; and the first flame extinguishing structure comprises an internal channel, the internal channel is used for communicating the annular air channel with the external space of the first flame extinguishing structure, and the first flame extinguishing structure is located in the arc extinguishing cavity. The breaker provided by the invention can improve the arc extinguishing efficiency.

A connector for use with a GFCI receptacle is provided. The connector includes a body, a latch configured to couple the body to the GFCI receptacle, a first blade supported by and extending from the body, a second blade supported by and extending from the body, wherein when the body is coupled to the GFCI receptacle, the first blade is received by a first mating terminal of the GFCI receptacle and the second blade is received by a second mating terminal of the GFCI receptacle to electrically couple the receptacle to a downstream device.

This invention relates to the field of centrifuge unit technology and discloses a capacity control method for a series centrifuge unit, including a startup phase: the high-stage suction guide vane operates according to the set minimum opening degree XL, and the low-stage suction guide vane operates according to the set minimum opening degree YL; when the outlet water temperature SP > the target temperature SV+Ta, the unit obtains the opening degree X of the high-stage suction guide vane through PID calculation and outputs the opening speed of the high-stage suction guide vane to the high-stage compressor, and the opening degree Y of the low-stage suction guide vane follows the opening degree X of the high-stage suction guide vane; otherwise, S40 is executed; when the outlet water temperature SP ≤ the target temperature SV+Ta, or the interruptor control time ≥ tc, S40 is executed; otherwise, S20 is executed; capacity PID control: the opening degree of the low-stage suction guide vane follows the opening degree of the high-stage suction guide vane. This invention effectively solves the problem of capacity and air volume mismatch when different series compressors are used together.

The invention relates to the technical field of centrifugal units, and discloses a tandem centrifugal unit capacity control method which comprises the following steps: a starting stage: a high-section air suction guide vane operates according to a set minimum opening XL of the high-section air suction guide vane, and a low-section air suction guide vane operates according to a set minimum opening YL of the low-section air suction guide vane; when the water outlet temperature SP is larger than the target temperature SV + Ta, the unit obtains the opening degree X of a high-section air suction guide vane through PID operation and outputs the opening speed of the high-section air suction guide vane to a high-section compressor, and the opening degree Y of a low-section air suction guide vane follows the opening degree X of the high-section air suction guide vane; if not, executing S40; when the outlet water temperature SP is smaller than or equal to the target temperature SV + Ta, or the control time of the interrupter is larger than or equal to tc, S40 is executed; otherwise, executing the step S20; and carrying out capacity PID control, wherein the opening degree of the low-section air suction guide vane follows the opening degree of the high-section air suction guide vane. The problem that the capacity and the air volume are not matched when different series of compressors are used in a mixed mode is effectively solved.

The invention relates to a high-voltage wiring system (1) for an electrically powered vehicle, wherein the high-voltage wiring system (1) includes a touch protection cover (2) and an interrupter (3) for switching off a high voltage in the high-voltage wiring system (1), wherein the interrupter (3) has a conductor section (4) with two end-end electrical connections (5, 6), each of which has a first plug partner that interacts in a plug-in-connected manner with a second plug partner that is electrically integrated in the high-voltage wiring system (1), wherein the conductor section (4) is attached in a receptacle (7) of the touch protection cover (2) which runs approximately parallel to the conductor section (4).

The application relates to the technical field of circuit breakers and discloses a grounded circuit breaker which comprises a moving contact, a static contact, a handle, a cover body and an output end, is internally provided with a grounding component and a first connecting piece, one end of the first connecting piece is connected with the moving contact, after the moving contact is separated from the static contact during a tripping process, the moving contact drives the first connecting piece to extrude the grounding component, the grounding component is contacted with the output end to be grounded, and the grounded circuit breaker is characterized in that, during the operation process of the circuit breaker, the moving contact is connected with the output end, then when the moving contact is tripped, the grounding component is controlled to complete grounding by using a grounding power rod and a grounding force transmission rod, the safety when the switch is turned off is guaranteed, the circuit has no current after being turned off, and when the switch is turned on, the grounding function of the circuit breaker is released by first rotating a grounding reset lever and then allowing a grounding reset lever to push the grounding force transmission rod.

The utility model discloses a fault arc circuit breaker which comprises a shell, a main line conductor, a mutual inductor and a circuit board, a first cavity is formed in the shell, the mutual inductor and the circuit board are both arranged in the first cavity, and at least part of the main line conductor can penetrate through the mutual inductor; wherein the first cavity comprises a mutual inductor containing area, and the mutual inductor is located in the mutual inductor containing area; an avoiding space is formed in the circuit board, and the avoiding space corresponds to the mutual inductor accommodating area; a limiting structure is arranged on the shell and located on one side of the mutual inductor so as to limit the mutual inductor to slide towards the circuit board in the penetrating direction of the main line conductor. The circuit board has the characteristic that the circuit board is more stable.

The present disclosure relates to a switch device comprising: a body comprising: a sidewall extending from a first end to a second end, the sidewall defining an interior space; and a plurality of electrically insulating baffles extending radially outward from an exterior surface of the sidewall; a circuit interrupter located in the interior space of the body; a first terminal electrically connected to the circuit interrupter; and a second terminal electrically connected to the circuit interrupter. The switch device is configured to be mechanically connected to at least two different types of mounting structures.

A safety control device (101) for a production machine is specified, comprising a master control unit (103), an interrupter unit (105) for installation on the production machine, and a protected switch (151) with authorization protection for outputting an authorized master control signal (AMSS) to the master control unit (103). The interrupter unit (105) includes a voltage input (111) and a voltage output (113) for providing a mains voltage U. N, comprising a circuit breaker (115) and a galvanically isolated circuit breaker control terminal (121), wherein an electrical connection between the voltage input (111) and the voltage output (113) can be switched by means of the circuit breaker (115), and wherein the circuit breaker (115) can be switched via the circuit breaker control terminal (121). The master control unit (101) comprises a control output (143) for providing a circuit breaker control signal, which is connected to the circuit breaker control input (121) of the circuit breaker unit (105), wherein the master control unit (103) comprises a normal operating mode (NB), a setup control mode (RK), and a standby mode (RM). The master control unit (103) is configured and configured to receive a master control signal (MSS) via the master control input (141) and, depending on the master control signal (MSS): - to switch to normal operating mode (NB), whereby the master control unit (101) switches the interrupter switch (115) conductively by means of the interrupter control signal; - to switch to rest mode (RM), whereby the master control unit (103) switches the interrupt switch (115) non-conductively by means of the interrupt control signal; and - to activate a setup control mode (SC), whereby the changing of the operating mode when the setup control mode (SC) is activated is regulated by the master control unit (103) until an authorized master control signal (AMSS) to deactivate the setup control mode (SC) is received at the master control input (141).

The present invention relates to an electrical current circuit breaker (C, C'), particularly a stray current circuit breaker, comprising: an inlet (1) having a geometric central axis (M1), particularly an electrolyte input end; a fluid outlet (2) having a geometric central axis (M2), particularly an electrolyte output end; and an impeller (3, 100, 200, 300) surrounded by a housing (4) and having a rotation axis (D). The impeller (3, 100, 200, 300) forms at least one non-conductive delivery volume (VT) designed to deliver fluid (F) from the inlet (1) to the outlet (2, 2'), and the fluid (F) in the delivery volume (VT) is electrically isolated from the fluid (F) at the inlet (1) and the outlet (2), wherein the central axis (M1) of the inlet (1) does not intersect the rotation axis (D) of the impeller (3). The present invention also relates to a current circuit breaker (C, C') wherein an impeller (100) is designed as a closed impeller (100), or wherein an impeller (3, 100, 200, 300) comprises a plurality of blades (32), and a rotatable roller (2001) is attached to the end face of the blades (32). The current circuit breaker includes a gas / liquid separation device. The present invention also relates to an electrolysis apparatus comprising a plurality of electrolytic cells (E1, E2, E3...), the electrolysis apparatus comprising at least one current circuit breaker according to the present invention, and a method for conveying fluid (F) from the inlet (1) to the outlet (2) of the current circuit breaker according to the present invention.