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US20150085405 |
PORTABLE GROUND FAULT CIRCUIT BREAKER
A portable ground fault circuit breaker includes a main housing. An interior housing in which moving and static contacts are disposed is disposed inside the main housing and includes a base and a... |
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US20140285929 |
Ground Power Leakage Detection for Peripheral Printed Circuit Boards
The present invention relates to an electric appliance (100) comprising an electric load (225), and a printed circuit board assembly (115) for electronically managing the electric appliance (100);... |
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US20130025494 |
SWITCHING GROUND TETHER CIRCUIT
A ground tether circuit is provided for a power circuit that includes a power source, at least one load and at least one rectifier. The ground tether circuit includes an adjustable voltage... |
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US20140112032 |
WIND TURBINE FAULT DETECTION CIRCUIT AND METHOD
A wind turbine fault detection circuit and method is disclosed herein. In a described embodiment, the wind turbine fault detection circuit comprises a magnetometer in the form of a hall-effect... |
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US20110054713 |
GLOBAL TRIP UNIT
A method of setting a ground fault trip response function for a trip unit includes enabling a ground fault protection mode for the trip unit, setting the ground fault trip response function for... |
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US20110134575 |
Heat sensor responsive to electrical overloads
Apparatus for detecting an overheating condition at an electrical power device and automatically breaking the circuit when the temperature exceeds a setpoint value. In various configurations the... |
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US20140098445 |
Signal Activated Circuit Interrupter
The current invention is an automatic AC power interruption system built into a portable power strip or a portable casing or integrated into an appliances control circuitry. The invention monitors... |
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US20120300348 |
CIRCUIT BREAKER PANEL
In at least some embodiments, a system includes a plurality of circuit breakers and trip control logic external to and coupled to the circuit breakers. The trip control logic enables a plurality... |
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US20150214720 |
Door Latch Interruption Upon Detection of Current Leakage
Appliances that include a ground fault door latch trip circuit that leverages a door latch circuit of the appliance to open one or more component relays upon detection of a current leakage event... |
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US20110141633 |
CIRCUIT BREAKERS WITH GROUND FAULT AND OVERCURRENT TRIP
A circuit breaker apparatus may be used to interrupt overcurrent and ground fault in a circuit. The circuit breaker apparatus may include an overcurrent coil for tripping the circuit breaker... |
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US20150009592 |
MANUAL RESET GROUND FAULT CIRCUIT INTERRUPTOR (GFCI) WITH A QUICK CONNECT LOAD INPUT
A Ground Fault Circuit Interrupter (GFCI) interrupts the flow of current through a pair of lines extending between a source of power and a load. The GFCI includes a circuit breaker, a relay... |
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US20140321005 |
PLUG-ON NEUTRAL BREAKERS AND RELATED METHODS
Plug-on neutral circuit breakers include an AFCI OR GFCI circuit breaker housing, a neutral conductor with an external end portion extending from the AFCI/GFCI circuit breaker housing, and a clip... |
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US20110279931 |
ELECTRONIC DEVICE
Disclosed is an electronic device capable of controlling a power supply interrupt according to the state of water leakage. A portable telephone (1) is equipped with a water leakage detection unit... |
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US20120194950 |
ELECTRICAL INSTALLATION ARRANGEMENT
An arc detector comprises an analysis unit for evaluating the first measurement signal according to at least one first evaluation scheme for detecting an arc or at least one electrical effect of... |
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US20110025515 |
STANDALONE SELF-SUPPLIED NUMERIC CONTROLLED RELAY
The disclosure relates to a process of configuring a standalone self-supplied numeric controlled relay for providing phase and earth over current protection to electrical systems by accurate... |
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US20130120883 |
BATTERY CHARGER FOR AN ELECTRICALLY-DRIVEN VEHICLE AND METHOD OF CONFIRMING EARTH LEAKAGE APPLICABLE THERETO
A battery charger for charging an electrically-driven vehicle by connecting the electrically-driven vehicle with an external power source, the battery charger includes an earth leakage detector... |
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US20130003233 |
ARC FAULT PROTECTION CIRCUIT AND METHOD
An arc fault protection circuit and method, provides arc fault protection in a multiphase power system by actuating a plurality of disconnect switches to disconnect the source from the load in... |
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US20130286515 |
Fault Protection for Aircraft Power Systems
A system and method for protecting a power system. A generator is tripped in response to identifying a current on the generator that is greater than a first current threshold for a first time... |
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US20140301000 |
Battery System and Ground Fault Detecting Device
A first battery pack (252-1) comprises a battery module (314) which includes a plurality of battery cells (310) connected in series between a positive terminal (352) and a negative terminal (353),... |
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US20140049860 |
EARTH FAULT DETECTION CIRCUIT AND POWER SOURCE DEVICE
An earth fault detection circuit for detecting an earth fault between a high-voltage battery and a motor includes: an A.C. signal generation portion generating an A.C. signal; a first capacitive... |
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US20110286134 |
EARTH LEAKAGE DETECTION MODULE WITH ROBUST TRANSIENT SUPPRESSION
A module for a high voltage electronic circuit breaker that includes a power supply and related circuitry for suppressing high voltage transients. The power supply receives a range of voltages,... |
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US20130250458 |
LEVERAGING INHERENT REDUNDANCY IN A MULTIFUNCTION IED
Disclosed herein are systems and methods for leveraging the inherent redundancy of electrical measurement inputs available to microprocessor-based intelligent electronic devices (IEDs).... |
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US20150043109 |
Electrical Wiring Device With Protective Features
The present invention is directed to an electrical wiring device that includes an automatic test circuit configured to commence an automatic test at a predetermined time such that a test current... |
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US20140009856 |
DEVICE FOR DETECTING A FAULT IN AN AC SUPPLY
A device for detecting a fault in an AC supply comprises a circuit (CT, 100) for detecting a fault in an AC supply to a load (LD) and providing a corresponding output (IO), and an... |
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US20120050924 |
CURRENT COLLECTING BOX FOR PHOTOVOLTAIC POWER GENERATION
A current collecting box for collecting electric power from a plurality of photovoltaic strings comprising a detector providing a detection output for detection of ground fault in each of the... |
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US20110235222 |
OUTPUT SHORT TO GROUND PROTECTION CIRCUIT
An output short to ground protection circuit protects an electronic device when it is short circuited to ground. The protection circuit has an NMOS transistor coupled to the output power... |
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US20120026631 |
PHOTOVOLTAIC ARRAY GROUND FAULT DETECTION IN AN UNGROUNDED SOLAR ELECTRIC POWER GENERATING SYSTEM AND TECHNIQUES TO TRANSITION ONTO AND OFF THE UTILITY GRID
In an embodiment, inverter circuitry has switching devices that generate three-phase AC voltage that is supplied to a utility power grid interface transformer. A high impedance circuit as well as... |
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US20140211345 |
ANNUNCIATING OR POWER VENDING CIRCUIT BREAKER FOR AN ELECTRIC LOAD
A circuit breaker for an electric load includes first and second terminals; a number of first separable contacts each electrically connected between one of the first terminals and one of the... |
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US20120206844 |
VOLTAGE SENSING CIRCUITRY FOR SOLID STATE POWER CONTROLLERS
Solid state power controllers are described that include a switch controlled by a microcontroller and communication contacts. In one aspect of the invention, the microcontroller is galvanically... |
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US20130229734 |
GROUND FAULT CIRCUIT INTERRUPTER AND METHOD
A method for operating a ground fault circuit interrupter. In accordance with an embodiment, an operating parameter of the ground fault circuit interrupter can be adjusted in response to an... |
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US20120069476 |
Thermally protected resettable GFCI
An improved GFCI monitors the balance of current passing through the device, and as long as the difference between current coming in and going out stays within a given range, normally 5 ma, the... |
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US20130128395 |
Short-circuit Detection Circuit and Short-circuit Detection Method
The present invention discloses a short-circuit detection circuit and a short-circuit detection method. The short-circuit detection circuit detects whether an output node is short-circuited to a... |
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US20070258172 |
Analog ground-interference canceling device
An electronic circuit that is used to accept audio or video signals that are referenced to the electrical neutral because of the use of a two-wire power source and output the audio or video... |
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US20140139345 |
GFCI WITH CYCLE COUNTER
Systems and methods for providing end-of-life functionality in an electrical component using a count of plugging operations are shown. In some configurations, a GFCI counts plugging operations and... |
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US20140293490 |
GROUND FAULT CIRCUIT INTERRUPTER (GFCI) MONITOR
This document discusses, among other things, a self-test (ST) ground fault circuit interrupter (GFCI) monitor configured to generate a simulated ground fault starting in a first half-cycle of a... |
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US20120257314 |
GROUND FAULT CIRCUIT INTERRUPTER (GFCI) MONITOR
This document discusses, among other things, a self-test (ST) ground fault circuit interrupter (GFCI) monitor configured to generate a simulated ground fault starting in a first half-cycle of a... |
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US20050002137 |
Circuit interrupting device with reset lockout and user load test to reset activation
Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. A... |
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US20070053119 |
Earth leakage detection device
Disclosed is an earth leakage detection device, which comprises a printed-circuit board incorporating an earth-leakage-detection control circuit, a reset function-equipped switch mounted on the... |
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US20150015999 |
METHOD OF TRIPPING A CIRCUIT INTERRUPTER IN A BACK FED CONFIGURATION
A method a tripping a circuit interrupter in a back fed configuration is provided, wherein the circuit interrupter has separable contacts and an actuator, such as a solenoid, operatively coupled... |
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US20100295693 |
GROUND TERMINAL BLOCK FAULT INDICATOR
An electrical ground terminal block assembly and arrangement to make ground fault situation accessible comprise a ground terminal housing to hold the wire linking elements and a characterized... |
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US20100020453 |
Modular Circuit Breaker
The present invention relates generally to a circuit breaker. More particularly, the invention encompasses a modular circuit breaker. The present invention is also directed to a novel a modular... |
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US20080212244 |
Electronic breaker system
A system, method, and device for a circuit breaker used in residential and commercial panels are disclosed. The exemplary circuit may have an overload protection device causing a disruption in a... |
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US20140153142 |
GROUND FAULT PROTECTION
A robust ground-fault protection system is disclosed which can possess a reduced sensitivity to system noise. In a ground-fault protection system for an electrical machine such as a generator, an... |
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US20140240875 |
GROUND FAULT PROTECTION SYSTEMS AND METHODS
A ground fault protection system is disclosed. The ground fault protection system may include a controller that is configured to receive signals representing a ground fault detection voltage and a... |
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US20100073832 |
POWER CUTOFF DEVICE AUTOMATICALLY OPERATED UPON OCCURRENCE OF SPARK ON ELECTRIC WIRE
The present invention provides a power cutoff device automatically operated upon the occurrence of a spark on an electric wire. The power cutoff device of the present invention automatically cuts... |
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US20130044395 |
Adaptive Light Detection For Arc Mitigation Systems
A controller-based detection system configured to adaptively learn to distinguish between detected light that is indicative of an arc fault event and detected light that is not related to an arc... |
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US20090251832 |
Over heating detection and interrupter circuit
An over heating detection circuit and an interrupter circuit are disclosed for interrupting electrical power from a power source receptacle to a load upon the detection of an over heating... |
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US20090257157 |
CIRCUIT BREAKER HAVING SEPARATE RESTRAINED AND UNRESTRAINED ZONE SELECTIVE INTERLOCK SETTING CAPABILITY
A circuit breaker system and method having zone selective interlock features with separate restrained and unrestrained setting capability is provided. The system and method include the... |
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US20120243130 |
ELECTRIC BATTERY WITH MULTIPLE ELECTRICAL ENERGY GENERATING ELEMENTS
A lithium-based battery system for a vehicle includes a plurality of lithium battery cells arranged in series that provide energy to propel the vehicle. Each of the battery cells includes a first... |
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US20140254050 |
PROTECTIVE DEVICE FOR AN ELECTRICAL SUPPLY FACILITY
The present invention is directed to a protective device configured to be coupled between an AC power source and an electrical load. A ground continuity monitor is coupled to the ground conductor,... |