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Match Document Document Title
7450359 System and method for providing a temperature compensated under-voltage-lockout circuit  
A system and a method are disclosed for providing a temperature compensated under-voltage-lockout circuit that has a trip point voltage that is not sensitive to temperature variation. The...
7440251 Multi-path switching configuration  
A multi-path switching configuration provides independent switching of multiple circuit paths. In a preferred arrangement, a plurality of circuit interrupters have one end connected in common with...
7440250 Circuit breaker including open neutral interlock  
A circuit breaker includes line and load terminals, separable contacts electrically connected between the line and load terminals, and a line neutral pigtail. An operating mechanism including an...
7436639 Compact ground fault circuit interrupter module  
A compact module with a pair of transformers and a double pole single throw relay (DPST) mounted onto a housing to create a self contained assembly for installation in a ground fault circuit...
7428132 Protection device with lockout test  
The present invention is directed to a protective device including a plurality of line terminals and a plurality of load terminals configured to be connected to at least one load. A test circuit is...
7426100 Drive kinematics in a hybrid circuit-breaker  
A device for the actuation of the movable contacts of a hybrid circuit breaker allows the following time diagram to be implemented: command the opening of the interrupting chamber, offset the...
7417840 Self-supplied electronic protection device for automatic circuit-breakers  
An electronic self-supplied protection device for automatic circuit-breakers that includes: a supply device that draws energy from the stretch of electrical network protected by said...
7414823 Holder for use in semiconductor or liquid-crystal manufacturing device and semiconductor or liquid-crystal manufacturing device in which the holder is installed  
Affords a holder for use in semiconductor or liquid-crystal manufacturing devices—as well as semiconductor or liquid-crystal manufacturing devices in which the holder is installed—in which...
7408274 Control and operating condition monitoring of dual series switch contactors for electric motor or other electrical load  
A circuit for controlling at least two power switches that are series connected between a source of electrical power and an electrical load, for energizing the load in response to a signal at a...
7391597 Switchgear with arc-resistant features  
An arrangement capable of being assembled with either an existing installed electrical equipment enclosure having an access door or during the fabrication and assembly of such an electrical...
7369389 Electronic trip unit for circuit breakers  
An electronic trip unit for a circuit breaker is disclosed. The electronic trip unit has a processing circuit, a real time clock chip, and a power source for powering the real time clock chip in...
7368895 Apparatus for a power supply with brownout protection and the protecting method for the same  
An apparatus for a power supply with brownout protection and the method thereof are proposed. As a brownout condition occurs, the apparatus informs at least one microprocessor to process the...
7362558 Protective device in a controller  
In the case of a protective device in a controller which contains at least one processor and is connected to a sensor via a sensor ground line and at least one further line, the invention provides...
7345863 Apparatus and method for identifying a loss of a current transformer signal in a power system  
Provided is an apparatus and method for identifying a specific lost current transformer (CT) signal of number of CT signals provided by a corresponding number of CTs coupling a protective device to...
7342757 System and method for quench protection of a superconductor  
A system and method for protecting a superconductor from a quench condition. A quench protection system is provided to protect the superconductor from damage due to a quench condition. The quench...
7336466 Contactor material for welding wire feeder  
An electromechanical contactor device is disclosed for use in a wire feeder for an electric arc welder having a power source and a gun with a contact tip through which welding wire is fed and a...
7336457 Ground fault circuit interrupter (GFCI) end-of-life (EOL) status indicator  
Disclosed is an end-of-life status alarm indication circuit and method for indicating the failure of the primary contacts of a ground fault circuit interruption (GFCI) device to open when a ground...
7312963 Protective device with tamper resistant shutters  
The present invention is directed to a protection device that includes line terminals coupled to a power source disposed in an electric power distribution system. The protection device is...
7305282 Very short term load prediction in an energy management system  
A method and system is provided for optimizing the performance of a power generation and distribution system by forecasting very short term load forecasts through the use of historical load data,...
7295415 Circuits for circuit interrupting devices having automatic end of life testing function  
The present invention provides a set of circuits which is capable of performing an automatic check on main components of a circuit interrupting device when the circuit interrupting device is...
7280337 Circuit breaker including a non-mechanical, electronic status or control circuit  
A controllable circuit breaker includes a housing, first and second inputs adapted to receive respective external close and open signals, a third input adapted to receive a control voltage, a set...
7280013 Self-contained breaker reset system and method  
A system and method for resetting a tripped circuit breaker are provided. The system includes a monitoring mechanism for monitoring a state of at least one electrical circuit breaker and for...
7277265 Robust power take-off and cruise enable  
Apparatus are provided for robust power take off (PTO) and/or cruise enable. The apparatus includes a control module for PTO enable having a first input connected to one of a first reference...
7274550 Single phase control and protection system of high voltage with dry insulation  
A protection system and single-phase control of high voltage with close loop dry insulation is provided. A detector detects the voltage through the influence of the electrical field in conductors,...
7271990 Smart solid state relay  
An electrical system includes a solid state relay ( 1 ) and an electrical connector ( 2 ) that connects solid state relay ( 1 ) to a load ( 4 ). The solid state relay ( 1 ) includes a power MOSFET...
7265960 Trip coil drive circuit and electrical switching apparatus including the same  
A drive circuit, such as an electronic trip device, is for a shunt trip coil of a network protector. The drive circuit includes an alternating current input adapted to receive an alternating...
7245483 Integrated personal information management system  
An integrated personal information management system is described. In one embodiment, for example, an integrated personal information management system is described that comprises: a receptacle...
7232971 Circuit breaker  
A circuit breaker includes a shell, a movable press strip, a metal strip, a C-shaped plate spring, and three conductors. A first and a second conductor are inserted through the bottom of the shell,...
7224563 Method and device for circuit control  
One disclosed embodiment of the invention is directed to circuit control that comprises sensing a delivered voltage to a portion of an integrated circuit, determining an appropriate frequency for...
7224561 Protective circuit and method for operating said protective circuit, in particular for overvoltage protection for an electronic control system for a motor vehicle  
Protective circuit and a method for operating said protective circuit in particular for overvoltage protection for an electronic control system for a motor vehicle protective circuit, comprising a...
7208899 Emergency-stop device  
An emergency-stop device provided in a robot system, a machine tool or the like, arranged to promptly detect failure of a circuit through which an emergency stop signal is supplied to an CPU,...
7199991 Electrical bus protection method & apparatus  
A protection relay for a power line system that employs current transformers for detecting current on a bus is provided with a fault trip scheme that includes transformer current saturation...
7187529 Apparatus and method for detecting a gas associated with a glowing contact and interrupting a power circuit  
A receptacle interrupts a power circuit including a glowing contact and a gas, such as hydrogen chloride, carbon dioxide, carbon monoxide or a combination of those gases, associated with the...
7170733 Electric pole for low-voltage power circuit breaker  
An electric pole ( 1 ) for a low-voltage automatic power circuit breaker, comprising: a fixed contact ( 2 ) and a movable contact ( 3 ) that can be coupled/uncoupled with respect to each other,...
7154402 Power strip with smoke detection auto-shutoff  
The invention is a power strip with an internal smoke detection device, which cuts off AC electrical power to attached electrical devices if smoke is detected.
7151462 Circuit arrangement and method for load diagnosis of a semiconductor switch  
The present invention relates to a circuit arrangement and a method for load diagnosis of a switch having a first and a second load connecting terminal. A first and a second current source...
7145760 Tap changer monitoring  
A method and means for diagnosing transformer tap changers is provided. Pressure is monitored in an insulating liquid of a tap changer for a period of time in which switching of the tap changer is...
7139159 Sensor device  
The invention relates to a sensor device, particularly a limit or threshold value sensor device with a sensor system for detecting an external measured quantity, a switching device being provided...
7133271 Switchgear with embedded electronic controls  
In one general aspect, a system to control and monitor an electrical system includes a switchgear housing unit connected to the electrical system that includes a switchgear mechanism for...
7120562 Signal source identification utilizing wavelet-based signal processing and associated method  
A signal source identification system and associated method are disclosed that utilize wavelet-based signal processing to facilitate signal source identification. In particular, the wavelet-based...
7120002 Power distribution bus with protection and alarming  
Power distribution busses and methods are disclosed that provide flexible protection and alarming capabilities. Various embodiments provide interchangeability of fuses and circuit breakers within...
7062388 Series arc detection  
A frequency harmonic identifier for detecting series arcs on a power line includes a frequency analyzer for providing the harmonic content of a sensed current signal and a decision logic for...
7054121 Protection circuit for preventing unauthorized access to the memory device of a processor  
A protection circuit ( 1 ) is coupled to a processor ( 2 ) and a memory device ( 3 ) which preferably form a physical unit, and prevents unauthorized access to the memory device ( 3 ) by combining...
7050280 High speed transfer system  
A High Speed Transfer System which comprises three Protection and Control devices. A first and a second of said Protection and Control devices are used for failure detection on the feeder bus-bar;...
7042688 Neutral switch test mechanism for a circuit interrupter  
Resettable circuit interrupting devices, such as GFCI devices, that include neutral fault test simulation.
7038921 Electronic apparatus  
A chassis built in a panel is provided with a supporter for supporting a printed wiring board mounted with an electronic component, and the printed wiring board is provided with a board-opening...
7027281 Failure detecting device  
A failure detecting device is provided, which includes the transistor for driving the excitation coil of the relay connected to the battery, the power supply monitors for monitoring an output of...
7026894 Method and apparatus for magnetically tripping circuit breakers  
An apparatus for interrupting an electrical short circuit current in an electrical distribution system having a plurality of phases is disclosed. The apparatus includes a housing, a plurality of...
7023307 Electro-magnetically enhanced current interrupter  
The present invention provides an apparatus and method of interrupting the current in a circuit wherein the magnetic pressure induced by current flow through a conductor causes the conductor to...
7016171 Current fault detector and circuit interrupter and packaging thereof  
A power controller is positioned within a current path between the line side and the load side of an electrical circuit. The power controller closes the current path in the presence of a control...
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