Abstract: A leakage current detection and interruption device for a power cord includes a switch module that controls an electrical connection of first and second power supply lines because input and output ends; a leakage current detection module, including first and second leakage current detection lines, which respectively detect leakage current signals on the first and second power supply lines and generate self-test fault signals in response to the first and second leakage current detection lines having an open circuit; and a drive module including at least one solenoid, a first semiconductor device forming a first current path from the first to the second power supply line when conductive, and a second semiconductor device forming a second current path from the second to the first power supply line when conductive, to supply current to the solenoid which in turn drives the switch module to disconnect the electrical connection.

Abstract: An electrical receptacle contains a plug outlet that has a pair of contacts for electrical connection to respective hot and neutral power lines. A controlled switch, such as a TRIAC, is connected in series relationship between the outlet contact and the hot power line. Sensors in the receptacle outputs signals to a processor having an output coupled to the control terminal of the controlled switch. The processor outputs an activation signal or a deactivation signal to the controlled switch in response to received sensor signals that are indicative of conditions relative to the first and second contacts.

Abstract: An abnormality determining section disconnects both a positive wire and a negative wire between a load module and a second ground circuit, connects one of a positive wire or a negative wire between a main power source apparatus and the second ground circuit, and determines whether there is an abnormality in a second main power source circuit based on an amount of power supplied to the second ground circuit in a state where one of the positive wire or the negative wire of the second main power source circuit is connected to a reference potential by the second ground circuit.

Abstract: The present disclosure pertains to detection of abnormal, risky, or aberrant conditions in a power distribution network and to corresponding trip signals being used to trip open devices such as reclosers upstream of where the abnormal condition is detected. Detection of open phase on a distribution circuit prevents severed conductors from causing a ground fault, therefore avoiding the possibility of fire and dangerous conditions. The voltage unbalance may be measured using an end of line relay that includes an electrical sensor or relay, a tripping mechanism, and a signal transmitter.

Abstract: An electrical receptacle contains a plug outlet that has a pair of contacts for electrical connection to respective hot and neutral power lines. A controlled switch, such as a TRIAC, is connected in series relationship between the outlet contact and the hot power line. Sensors in the receptacle outputs signals to a processor having an output coupled to the control terminal of the controlled switch. The processor outputs an activation signal or a deactivation signal to the controlled switch in response to received sensor signals that are indicative of conditions relative to the first and second contacts.

Abstract: Disclosed is a power control system for preemptive detection and prevention of electric disasters including a feed end that supplies power, a receiver end that receives the power from the feed end through a line, a power control device that calculates at least one of a loss power value, a leakage current value, a voltage drop value, and an impedance value based on a voltage value and a current value, which are measured at each of the feed end and the receiver end, detects whether the line is abnormal, by comparing the calculated at least one value with a corresponding predetermined threshold and identifying a change in electrical properties, and controls the power supplied to the receiver end when it is detected that the line is abnormal.

Abstract: A pulse voltage conditioning method of a vacuum interrupter with automatic conditioning energy adjustment based on a trend of a breakdown voltage of the vacuum interrupter during a conditioning process. A current-limiting resistor and a parallel capacitor are automatically adjusted to ensure the conditioning energy reaching a critical value without deconditioning effect. The critical value refers to a maximum conditioning energy without damaging the electrode surfaces, namely an optimal conditioning energy, which can better remove insulation defects on the electrode surface and improve insulation performance of a vacuum gap. The problems of insufficient conditioning and deconditioning effect during conventional voltage conditioning process of the vacuum interrupter can be solved. Therefore, insulation strength of the vacuum interrupter can be raised to a higher level through conditioning.

Abstract: A gas monitoring system includes a gas-insulated switchgear, wherein the gas-insulated switch gear has at least two separated chambers which are filled with an insulating gas surrounding high or medium voltage components. A first sensor is connected to the first chamber and a second sensor is connected to the second chamber, both sensors adapted to measure a physical property of the insulating gas in their respective chambers over time. A computer unit is adapted to calculate from the two sensor measurements a leakage rate of the insulating gas in one of the two chambers using an adaptive filter, in particular a Wiener filter.

Abstract: A lithium precipitation detection method may include: sending, when a battery management module in the battery pack determines that a change in a charging voltage of the battery pack meets a predetermined condition, a charging request containing a first current to a charging pile for charging, and controlling the battery pack to be charged with the first current for a first predetermined duration and a second predetermined duration, where the first predetermined duration is equal to the second predetermined duration; obtaining, by the battery management module, a first voltage change amount within the first predetermined duration and a second voltage change amount within the second predetermined duration; and determining, when the battery management module determines that a difference between the second voltage change amount and the first voltage change amount is greater than a predetermined voltage threshold, that lithium precipitation occurs in the battery pack.

Abstract: A circuit interrupter device for selectively connecting a source of AC power from a line side to a load side of the circuit interrupter device includes a controller powered from a source of AC power from a line side. The controller initializes a self-test and determines whether the self-test was successful. The controller outputs a self-test result signal. An electrically-held relay of the device, which is in communication with the controller and is powered from the line side, stays in an OFF state until the self-test result signal indicates the self-test was successful, and enters an ON state if the self-test was successful. When in the OFF state, a load side of the circuit interrupter device is not in electrical communication with the source of AC power, and when in the ON state, the load side is in electrical communication with the source of AC power.

Abstract: The present disclosure is directed to methods and apparatus that may collect information relating to a group of electrical power distribution wires, commonly referred to as an electrical branch circuit. Such methods can controllably cause a circuit breaker to open (clear) while keeping the branch circuit loaded within a predetermined set of parameters or specifications. Apparatus consistent with the present disclosure may use multiple high power resistive elements of different resistance values that are selectively connected to the branch circuit in a manner that provides a configurable limit to an available fault current when data relating to the branch circuit are collected and evaluated. Such methods can provide a positive indication to an electrician that allows the electrician to know that a particular electrical circuit has been de-energized before the electrician works on that particular electrical circuit.

Abstract: A device for high-voltage or medium-voltage technology includes at least one connection configured for connection to a high-voltage or medium-voltage conductor; a sensor system configured to determine a plurality of different physical and/or chemical measurement values relating to the device and/or the conductor and/or the surroundings; and a communication system, in particular a wireless system, configured to receive the measurement values from the sensor system and to transmit them to an entity in a network. A method for high-voltage or medium-voltage technology is also provided.

Abstract: An electrical receptacle contains a plug outlet that has a pair of contacts for electrical connection to respective hot and neutral power lines. A controlled switch, such as a TRIAC, is connected in series relationship between the outlet contact and the hot power line. Sensors in the receptacle outputs signals to a processor having an output coupled to the control terminal of the controlled switch. The processor outputs an activation signal or a deactivation signal to the controlled switch in response to received sensor signals that are indicative of conditions relative to the first and second contacts.

Abstract: A method for detecting a tripping of a disconnection unit in an electrical enclosure, the electrical enclosure including at least one disconnection unit for disconnecting electric current and at least one switching unit for switching the electric current, the method including a learning phase configured to generate decision-making categories associated with an acoustic signature of the tripping of the at least one disconnection unit, and a phase of detecting the tripping of the disconnection unit, including: acquiring a unit noise signal generated by at least one of the disconnection units for disconnecting the electric current or at least one switching unit for switching the electric current, and comparing the unit noise signal with the decision-making categories in order to detect whether the unit noise signal corresponds to the tripping of the disconnection unit.

Abstract: An overcurrent detector with an electric line and a sensor for monitoring an electric current in the line and outputting a measurement signal, and an integral-unit adapted to integrate an interval of consecutive values of the measurement signal and outputting an integrator-signal, the detector comprises a comparator unit for comparing a value of the integrator-signal with a threshold level and outputting a trigger signal, with the detector further comprises a threshold level determination unit, an input being connected to the sensor for receiving an actual measurement signal, and with an output being connected to the comparator unit, proving the comparator unit with the threshold level, and that the threshold level determination unit is adapted to determine the threshold level in dependence on the value of the actual measurement signal.

Abstract: A switch that includes a sensor device capable of transmitting data related to a sensor signal of at least one sensor of the sensor device to an external unit through wireless communication.

Abstract: A contact measurement system for measuring a parameter of a contact of a switchgear includes: a first device for measuring an electrical resistance of the contact and mapping the electrical resistance spatially and/or dynamically; a second device for measuring an axial force of the contact and to map the axial force spatially and/or dynamically as a measured axial force; and a third device for measuring a position of the contact. The contact measurement system determines a position-depending force characteristic based on the measured axial force of the contact and the position of the contact. The contact measurement system determines a status of the contact based on a combination of the position-depending force characteristic with the electrical resistance of the contact.

Abstract: An electrical receptacle contains a plug outlet that has a pair of contacts for electrical connection to respective hot and neutral power lines. A controlled switch, such as a TRIAC, is connected in series relationship between the outlet contact and the hot power line. Sensors in the receptacle outputs signals to a processor having an output coupled to the control terminal of the controlled switch. The processor outputs an activation signal or a deactivation signal to the controlled switch in response to received sensor signals that are indicative of conditions relative to the first and second contacts.

Abstract: The invention relates to a control unit for a medium voltage switching apparatus. The control unit is adapted to carry out a diagnostic method to check operating conditions of one or more components of said electric poles. The diagnostic method includes the following steps: basing on a selected ideal position curve, obtaining one or more first curves indicative of an ideal behaviour of said switching apparatus, during an opening manoeuvre or closing manoeuvre of the switching apparatus; basing on detection signals provided by a closed-loop control arrangement of said control unit, calculating one or more second curves indicative of an actual behaviour of said switching apparatus, during an opening manoeuvre or closing manoeuvre of said switching apparatus; and carrying out a comparison procedure among said first and second curves.

Abstract: A circuit interrupter including a line conductor, a neutral conductor, a printed-circuit board coil, and a test circuit. The printed-circuit board coil has an aperture configured to receive the line conductor. The test circuit is electrically connected to the printed-circuit board coil. The test circuit is configured to determine an arc fault condition based on a signal of the printed-circuit board coil.

Abstract: An apparatus comprises a switch, a current monitor, and a controller. During operation, the switch controls an amount of current through the load. The current monitor samples a magnitude of the current through the load, a magnitude of which varies over time during a time duration. Based on integrating the sample magnitudes of the current through the load over the time duration, the current monitor produces a current sense value. The current sense value is representative of an amount of current through the load. The controller controls an operational state of the switch based upon a comparison of the current sense value with respect to an over-current threshold value. For example, in response to detecting a condition in which the current sense value is greater than the overcurrent threshold value, the controller turns OFF (deactivates) the switch, reducing or eliminating delivery of current through the load.

Abstract: A battery pack including first and second battery contactors respectively having first ends electrically connected to positive and negative electrode terminals of a battery; first and second charging contactors respectively having first ends electrically connected to second ends of the first and second battery contactors; a second power connector of a charger having first and second output terminals respectively electrically connected to the first and second input terminals being connected to the first power connector; and a control unit configured to, when a charger is connected and a charging request is received, control the first and second charging contactors to both be in a turn-on state or a turn-off state at the same time, and diagnosing a fault of each of the first charging contactor and the second charging contactor.

Abstract: An electrical receptacle contains a plug outlet that has a pair of contacts for electrical connection to respective hot and neutral power lines. A controlled switch, such as a TRIAC, is connected in series relationship between the outlet contact and the hot power line. Sensors in the receptacle outputs signals to a processor having an output coupled to the control terminal of the controlled switch. The processor outputs an activation signal or a deactivation signal to the controlled switch in response to received sensor signals that are indicative of conditions relative to the first and second contacts.

Abstract: A system and a method for an integrated test on a primary-secondary pole-mounted breaker. The method includes: establishing an electrical connection between the system and the primary-secondary pole-mounted breaker; establishing a communication connection between the system and the primary-secondary pole-mounted breaker; applying, by the system, a voltage signal and a current signal to the primary-secondary pole-mounted breaker through the electrical connection, to generate a voltage and a current on the primary-secondary pole-mounted breaker; collecting, by the system, signals of the voltage and the current fed back from the primary-secondary pole-mounted breaker through the communication connection; performing, by the system, an integrated accuracy test and an integrated protection test; outputting a test result of the accuracy test and a test result of the integrated protection test to the industrial control machine, to generate the test report.

Abstract: A system is described herein, including an activation circuit configured to generate a signal indicative of an alarm condition. A residual current device trigger circuit is coupled to the activation circuit and a residual current device. The residual current device trigger circuit is configured to provide a simulated earth leakage current condition to trigger the residual current device on receiving the signal indicative of the alarm condition.

Abstract: Implementations of ground fault circuit interrupter (GFCI) self-test circuits may include: a current transformer coupled to a controller, a silicon controlled rectifier (SCR) test loop coupled to the controller, a ground fault test loop coupled to the controller, and a solenoid coupled to the controller. The SCR test loop may be configured to conduct an SCR self-test during a first half wave portion of a phase and the ground fault test loop may be configured to conduct a ground fault self-test during a second half wave portion of a phase. An SCR may be configured to activate the solenoid to deny power to a load upon one of the SCR self-test or the ground fault self-test being identified as failing.

Abstract: A solid state power switch device comprises a switch unit comprising at least one switch element configured to provide power supply to a load of a vehicle while the switch element is in close state; a switch control unit in communication with the switch unit, and configured to control in open/close state the switch element; the switch control unit comprising a built in self-test module of the switch element configured to control a self-test sequence of the switch element and to check failure/success of the self-test sequence of the switch element such that the switch unit is self-tested.

Abstract: Ground fault circuit interrupter is provided, including a transformer, a protection switch, a residual current protection control unit, a residual current simulation unit and a self-test unit, wherein the self-test unit is coupled with the line where the protection switch is located; in a self-test state, the self-test unit is configured to control the residual current simulation unit to generate a simulated residual current, detect a level change on the line where the protection switch is located, and control the protection switch to be disconnected from the residual current protection control unit or to make the line where the protection switch is located be conducted after a preset protection time period of receiving the residual current signal higher than a preset operating threshold. Improper actions of the ground fault circuit interrupter caused by a large electromotive force generated when a simulated residual current disappears are avoided.

Abstract: In one example, an arc fault circuit interrupter (AFCI) is provided. The AFCI may include a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures, and a processor. The processor may be configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal. The processor may be further configured to assess each of the current arc signatures, determine whether an arc fault exists based on the assessment, and generate the first trigger signal if an arc fault is determined to exist. A method for detecting an arc fault is also provided.

Abstract: A protective relay test equipment operation device according to an embodiment of the present invention may comprise: a switch unit for, upon reception of a trip signal or a close signal from a protective relay, changing an electrical connection state between a first port configured to be electrically connected to test equipment that generates a test signal and a second port configured to be electrically connected to the protective relay; a measurement unit for measuring a voltage and a current between the first port and the second port during a test period in which an operation time point of the switch unit is a start time point or an end time point; and a calculation unit for calculating a plurality of time point-specific impedance values within the test period according to a measurement result of the measurement unit.

Abstract: An arc fault identification unit for an electrical three-phase alternating current circuit with three phase conductors and a neutral conductor. The identification unit includes voltage sensors to periodically determine phase/neutral conductor voltage values and phase/phase voltage values current sensors to periodically determine phase conductor current variables which are used to determine the phase conductor current value and a value for the change in the electrical current over time per phase, and an evaluation unit connected to the voltage and current sensors. A current root mean square is compared with a current threshold value in each case and an excess current signal is emitted if the threshold value is exceeded; arc voltages are calculated and are compared with threshold values, with the result that arc fault identification signals are output.

Abstract: The present invention is directed to electrical wiring device that includes: a housing including a cover and a back body, the housing further including a plurality of line terminals and a plurality of feed-through load terminals, a plurality of receptacle load terminals substantially aligned with a plurality of receptacle openings; a fault protection circuit disposed inside the housing, having sensing components mounted to one side of a first PCB, the fault protection circuit being configured to provide a fault detection signal in response to detecting at least one type of predetermined fault condition; a circuit interrupter disposed inside the housing, the circuit interrupter being configured to couple the plurality respective terminals in response to a reset stimulus being applied to a reset button, the circuit interrupter being configured to decouple the respective plurality of terminals in a second state when the latching element and a reset pin are decoupled in response to the fault detection signal; and

Abstract: In accordance with example embodiments, an automated ground fault interrupter includes means for resetting itself following detection of a ground fault. In accordance with example embodiments, when a ground fault is detected, a relay switch opens and breaks the conducting path between an AC input and a plug for connecting devices for a set amount of time after which the relay switch is closed again, restoring the conducting path between the plug and the AC input. Following restoration of the conducting path, the relay switch is opened again if a ground fault is detected. In accordance with example embodiments, the automated ground fault interrupter automatically tests itself at predetermined intervals. In accordance with example embodiments, the ground fault interrupter is automatically reset following the automatic test.

Abstract: An electronic trip unit is for a low-voltage circuit breaker of a three-phase AC circuit. The electronic trip unit includes a housing with a front, rear, left-hand, right-hand, top and bottom face; a controller to compare current measurement values of the three-phase AC circuit with at least one of current limit values, current period limit values and time period limit values and to output a tripping signal, for interrupting the three-phase AC circuit, upon the values being exceeded. The electronic trip unit further includes a receptacle to provide a connection between the electronic trip unit and the module, the module being receivable by the left-hand, right-hand, top or bottom side face of the housing. At least one function of the electronic trip unit is activated upon the module being received. The front face of the housing includes a viewing window. At least a portion of a received module is visible.

Abstract: A method of facilitating configuration of at least one sensor with a data transmitter communicatively coupled to an analysis engine for a building management system, wherein the application is configured to be run on a mobile device and interact with the at least one sensor during the installation. The method includes communicating, by the application, with the at least one sensor to display a visual indicator, capturing, by a camera of the mobile device, visual data representative of the visual indicator, and associating the at least one sensor with a circuit of a building power system based on the captured visual data.

Abstract: An electrical protection apparatus includes at least one first or main electrical protection function able to be carried out by a microcontroller and a button termed a test button intended to be actuated by a user to give rise to the implementation of the testing of at least one second electrical function, this implementation of the test being intended to give rise to the tripping of the protection apparatus D. The electrical protection apparatus includes a device for pooling the actuation of this test button with at least one action intended to carry out a third function, as a function of various types of action exerted on the test button, these actions being detected by the microcontroller, the aim being for the latter to give the order to carry out one of the third functions or else the testing of one of the second functions.

Abstract: Systems and methods can be used in connection with a circuit multi-tester including phase rotation-measurement circuitry. A power-testing device comprising a plug and an enclosure with circuitry can be used to display various power characteristics of a receptacle. The plug of the power-testing device can be received into a compatible power receptacle. The reception of the plug into the receptacle can allow for power communication from a power source supplying power to the power receptacle and the power-testing device for power measurement purposes. The power-testing device can include an enclosure with circuitry that can measure phase rotation information and can detect the presence of power on power lines of the receptacle. Based on the detected presence of power and phase rotation information, the power-testing device can output a visual indicator to the technician that represents the presence of the power and phase rotation orientation.

Abstract: An electronic overload current breaker supports arc-fault and ground-fault (AFGF) detection along with built-in shunt calibration (BISC™). The breaker may include a current sensing shunt and a control circuit electrically coupled to the current sensing shunt. This control circuit is configured to calibrate the current sensing shunt in response to application of a calibration current to the breaker. The control circuit can: (i) determine a magnitude of the calibration current applied to the breaker, (ii) map the magnitude of the calibration current to a first one of a plurality of current ratings for the breaker, and (iii) set the breaker to monitor overload conditions at the first one of the plurality of current ratings. The plurality of current ratings for the breaker can be less than the magnitude of the calibration current.

Abstract: In order to test substations from different manufacturers and of different types in a simple manner, it is provided that a control unit (6) for a switching device (5) of a substation (4) is connected via an adapter cable (11) to a test device (10), which simulates the switching device (5) for the test and the test device (10) reads configuration-specific data from a memory unit (15) on the adapter cable (11) and the test unit (10) thus configures its signal inputs (BE) and signal outputs (BA, AA) that are required for conducting the test.

Abstract: A circuit interrupter includes a sensor structured to output a sensor signal, a control unit structured to receive an external control signal, the control unit including: a communication interface structured to receive the external control signal, and a waveform generator structured to generate a waveform equivalent to the sensor signal in response to the external control, and a signal processing circuit structured to receive and process the sensor signal or the generated waveform and to output the processed sensor signal or generated waveform to the control unit.

Abstract: An electric power equipment comprises: a display module; a sensor module for outputting measurement data including a first noise signal measured from inside of the electric power equipment, a second noise signal measured from outside of the electric power equipment, a temperature signal of the electric power equipment, and a humidity signal of the electric power equipment; and a control module for diagnosing whether a partial discharge has occurred based on the measurement data, wherein the control module includes: a determination unit for determining whether a signal magnitude of the first noise signal is within a preset first reference range; an analysis unit for diagnosing an occurrence of the partial discharge, and for analyzing the signals according to the analysis algorithm; and a control unit for controlling a result information of the analyzing, and a maintenance and repair information, to be displayed.

Abstract: A method for detecting a fault of an actuator of a recloser, the actuator controlled by a coil to move between a first position and a second position, the method including: controlling the coil to move the actuator from the first position to the second position; monitoring, for a period of time, either or both of a current flowing through the coil and a voltage across the coil when the actuator is moving from the first position to the second position; and detecting the fault when the monitored current or the monitored voltage fails a predetermined condition.

Abstract: A welding or cutting system is provided that uses welding cables between a wire feeder and a power supply for high-speed data communications between the wire feeder and the power supply. A system designed as discussed herein eliminates the need for voltage and/or current sense leads for communication arc voltages/currents detected at the welding operation.

Abstract: Embodiments of the present invention provide an electrical device, an electrical system and a corresponding terminal device. The electrical device comprises a sensing unit for sensing operational data of the electrical device during its operation, the operational data including at a voltage, a current for an electric component of the electrical device, a temperature of the electrical device during its operation, and combinations thereof. The electrical device further comprises a storage unit for storing the operational data so that a cause of failure is analyzed by means of the stored operational data when a failure occurs in the electrical device. The electrical device provided by embodiments of the invention can alleviate or mitigate the problem that that it is difficult in the prior art to determine the cause of failure after a failure occurs in the electrical device.

Abstract: To reduce the rate at which a false alternating current (“AC”) loss alarming signal is generated, but at the same time detect an actual AC loss situation in a timely manner, the disclosed method describes an AC line power loss detection and active verification method. If the AC line input voltage dips momentarily lower than a standard sine wave amplitude, the AC line may not be considered lost as long as it still has energy to drive a load. The method inserts a momentary load across the AC line and compares the AC line voltage before and after the extra load is applied. If the AC power is present, this extra loading will increase the AC loading current momentarily, but will not affect the AC line voltage. However, if the AC power is lost, such loading will lower the AC line voltage, indicating a loss of power.

Abstract: A circuit interrupting device including a fault detection circuit and an auto-monitoring circuit. The fault detection circuit is configured to detect a fault condition of the circuit interrupting device, and output a fault detection signal in response to detecting the fault condition. Wherein the fault detection signal is configured to place the circuit interrupting device in a tripped condition. The fault detection circuit is further configured to output a pre-trigger signal, wherein the pre-trigger signal is configured to not place the circuit interrupting device in the tripped condition. The auto-monitoring circuit is configured to monitor an auto-monitoring input signal, wherein the value of the auto-monitoring signal is at least partially determined by a value of a pre-trigger signal generated.

Abstract: Table saws are disclosed. The table saws can include a blade, an arbor, an arbor block, an elevation carriage, and a latch that connects the arbor block and the elevation carriage. The arbor block can have a first position in which the latch connects the arbor block and the elevation carriage, and a second position in which the latch does not connect the arbor block and the elevation carriage. The arbor block can pivot from the first position to the second position upon the occurrence of a retraction force. The table saw can include an actuator to cause the occurrence of the retraction force, and detection electronics to detect contact between the blade and a person. Woodworking machines with detection and reaction systems are also disclosed. A reaction system can include an explosive that causes retraction of a cutting tool.

Abstract: Motor control centers are designed and configured by a series of interface screens that are served to a configuration computer. The system configuration may be based on a default configuration, and customization is made based upon user selection or input of data via the interface screens. The particular screens presented and the type and detail of data presented may be adapted so that more or less is available based upon a security access model. The system may be fully integrated with various other systems, such as enterprise resource planning tools. The system may be online, such that the interface, data, offerings, options and so forth may be easily adapted and updated, and design and configuration may be made by different parties at different locations with a minimum of specialized configuration computer programming.

Abstract: A blocking member for an actuator having a movable arm for effecting a quick-make feature, includes for example, an elongated member having a first end and a second end, and wherein a portion of said elongated member being configured so that said blocking member disposed in a first position engages a portion of the movable arm of the actuator to restrain movement of the movable arm, and so that said blocking member disposed in a second position disengages from the portion of the movable arm of the actuator to permit movement of the movable arm.

Abstract: A power cable assembly includes a power cable extending between a first end and a second end having a hot conductor and a neutral conductor. The power cable assembly includes a circuit protection device along the power cable between the first and second ends. The circuit protection device has a ground fault circuit interrupt (GFCI) device configured to sense a current difference on the hot and neutral conductors to initiate a triggering event. The circuit protection device has a high-power relay device connected to the GFCI device. The high-power relay device is connected to the hot conductor and is configured to open the hot line when the triggering event is initiated by the GFCI device.