Matches 1 - 50 out of 121 1 2 3 >


Match Document Document Title
US20070211398 SUPPRESSING ELECTROSTATIC DISCHARGE ASSOCIATED WITH RADIO FREQUENCY IDENTIFICATION TAGS  
An electrostatic discharge control system and circuit uses a voltage variable material to protect an electrical circuit, such as radio frequency identification (RFID) tag, from electrostatic...
US20160181781 STRING AND SYSTEM EMPLOYING DIRECT CURRENT ELECTRICAL GENERATING MODULES AND A NUMBER OF STRING PROTECTORS  
A string includes direct current electrical generating modules electrically connected in series to form a first end and a remote second end. A power line is electrically connected to one DC EGM at...
US20110090607 STRING AND SYSTEM EMPLOYING DIRECT CURRENT ELECTRICAL GENERATING MODULES AND A NUMBER OF STRING PROTECTORS  
A string includes direct current electrical generating modules electrically connected in series to form a first end and a remote second end. A power line is electrically connected to one DC EGM at...
US20050063109 Digital fault interrupter with self-testing capabilities  
A ground fault interrupter apparatus is provided that employs a switching device that is operated in two stages. The first stage operates a solenoid in order to close the contacts and preferably...
US20150214708 Wall-Mounted Charging Device and Modular Outlet Extender  
The present invention provides a novel wall-mounted charging device and modular outlet extender that may be inserted into a standard wall outlet without additional wires and provides a platform...
US20100085670 PHOTOVOLTAIC MODULE MONITORING SYSTEM  
Embodiments of apparatuses, systems, articles, and methods related to a photovoltaic module monitoring system are disclosed. Other embodiments may be described and claimed.
US20080144238 CONTROLLER SYSTEM FOR POOL AND/OR SPA  
A control system for a pool and spa. Main line voltage is provided through a single line voltage service and a single ground fault circuit interrupter circuit, facilitating a ground fault test and...
US20050225909 Leakage monitoring system  
The system makes it possible to monitor various electrical variables by using a simple structure at low cost with ease and with high reliability by a circuit breaker which jointly includes a...
US20060285262 GROUND FAULT CIRCUIT INTERRUPTER INCORPORATING MISWIRING PREVENTION CIRCUITRY  
A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC...
US20050286184 Electrical power outlet strip  
The power strip of the present disclosure includes an arc fault circuit interrupter (AFCI) to interrupt power to electrical devices plugged into the power strip when arcing is detected and, when...
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...
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...
US20110169447 ELECTRIC VEHICLE SUPPLY EQUIPMENT  
An electric vehicle charging system includes a portable housing having an integral holder to hold a connector for an electric vehicle supply circuit. An electric vehicle supply equipment enclosure...
US20120075755 Electric device, electric device system, method to detect arc fault in the same  
An electric device includes a plurality of loads and an arc fault detection device to output arc signal detection information when an arc signal has been input from a wire harness connected to the...
US20140063662 Solar panel, power inverter, theft and arc protection system and methods of protection  
The present invention provides a system and method for individual or plural detection of the presence or absence of at least one installed solar panels whether or not the individual solar panel or...
US20080204951 Safety device for prevention of electrical shocks  
A safety device can provide electrical shock protection for an electrical appliance. Voltage sensors can monitor voltage levels among a power conductor, a neutral conductor, and a ground...
US20090040666 CIRCUIT INTERRUPTER INCLUDING TEST CIRCUIT  
A circuit interrupter includes separable contacts, a neutral conductor, an operating mechanism structured to open and close the separable contacts, and a plurality of current sensors structured to...
US20090323233 APPARATUS AND METHOD OF DETERMINING INSULATION RESISTANCE IN AN UNGROUNDED MOBILE VEHICLE ELECTRICAL BUS SYSTEM  
An insulation resistance detection system for use with a vehicle having a chassis. The system includes an electrical power source, an electrical system, and a detection circuit. The electrical...
US20050213270 Optical receiver  
An optical receiver of the present invention has (a) a filter circuit for separating low/high frequency current in order to separate a low frequency current component and a high frequency current...
US20090174972 High-Power Ultracapacitor Energy Storage Pack and Method of Use  
An ultracapacitor energy storage cell pack includes an ultracapacitor assembly including a plurality of parallel ultracapacitors and balancing resistors in series; an enclosure for the...
US20060171085 Arc fault detection  
An arc fault detector configured to process audio frequencies associated with an arc fault condition to detect the occurrence of an arc fault condition. In one embodiment, the arc fault detector...
US20070201171 Resolver/digital-converter and control system using the resolver/digital-converter  
A resolver/digital-converter having a self-fault-detection function without breaking normal operation is provided. The resolver/digital-converter, which has a normal operation function section, a...
US20120275071 ARC-FAULT DETECTION  
An arc-fault circuit-interrupter includes a capability for a controller in the interrupter-circuit to be placed in a learn mode. In learn mode, the controller may change firmware to reduce the...
US20090212967 Circuit Interrupting System with Remote Test And Reset Activation  
The present disclosure relates to resettable circuit interrupting devices and system and methods capable of being tested and reset from remote locations, and in particular to circuit interrupting...
US20050036250 Power converter apparatus and method for controlling the same  
A power converter apparatus converts electricity supplied from a power source into a different form and outputs the electricity to an output line. The apparatus includes a ground-fault detector...
US20100157490 LEAKAGE CURRENT PROTECTION DEVICE  
A leakage current protection device with a single laminated magnetic core transformer that is formed by punch pressing an amorphous metal material, or a nanocrystalline soft metal material, in a...
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...
US20070247768 Wireless handheld device and circuit breaker  
A system is provided for enabling the communication between a handheld device 26 and a circuit breaker (18a, 18b, 18c). The system comprises an electronic circuit breaker (18a, 18b, 18c) including...
US20060152866 System for maintaining fault-type selection during an out-of-step condition  
A system for maintaining fault-type selection during an out-of-step condition is provided comprising an element for calculating the element reach M; an element for fault type selection; an element...
US20060262468 TWO PIECE BUTTON ASSEMBLY FOR CIRCUIT INTERRUPTING DEVICE WITH RESET LOCKOUT  
A manually operated test member for a resettable circuit interrupting device for determining if the circuit interrupting device is operating properly. The test member comprises a button and a...
US20140043714 SWITCHGEAR INCLUDING A CIRCUIT BREAKER HAVING A TRIP UNIT WITH AN INTERFACE TO A NUMBER OF ARC FAULT SENSORS  
Switchgear includes a plurality of bus bars; and a plurality of circuit breakers. At least one of the circuit breakers includes a trip unit. The trip unit includes an interface to at least one arc...
US20110211283 NOVEL CIRCUIT INTERRUPTING DEVICE WITH HIGH VOLTAGE SURGE PROTECTION  
The present invention provides a circuit interrupting device which is capable of providing protection against electrical surge through its innovative electrical discharge design; establishing or...
US20080123226 Ground Fault Detector Interrupter  
A ground fault detector interrupter (GFDI) is described. The GFDI configured for use with a DC power supply and comprises the following elements. A ground current path is provided for coupling a...
US20050275981 GFCI wiring device with integral relay module  
The present invention discloses an electrical wiring device having a GFCI in combination with an integral relay module with internally supported GFCI transformers to form a relatively small right...
US20070053118 RESET LOCKOUT MECHANISM AND INDEPENDENT TRIP MECHANISM FOR CENTER LATCH CIRCUIT INTERRUPTING DEVICE  
Resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout mechanism, an independent trip mechanism and reverse wiring protection. A conical reset plunger is...
US20050243485 Leakage current detection interrupter with open neutral detection  
A leakage current detection interrupter (LCDI) having open neutral detection. In one embodiment, the LCDI is formed in a plug and includes a circuit interrupter means for breaking a conductive...
US20150214700 AC CIRCUIT BREAKER PANELS AND TELECOMMUNICATIONS EQUIPMENT CABINETS HAVING AC CIRCUIT BREAKER PANELS  
An AC circuit breaker panel includes a housing having a front side, a bus bar positioned in the housing, and one or more terminal blocks positioned in the housing. The housing has brackets adapted...
US20140098446 Universal Ground Fault Interrupter (GFCI) Device and Printed Circuit Board Package  
A Ground Fault Circuit Interrupter (GFCI) printed circuit board (PCB) for interrupting the flow of current through a pair of lines extending between a source of power and a load. The GFCI PCB is...
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...
US20080310058 MEMS MICRO-SWITCH ARRAY BASED CURRENT LIMITING ARC-FLASH ELIMINATOR  
The present invention comprises MEMS enabled apparatus for the detection of arc-faults and the elimination of arc-flash conditions. The apparatus comprises an arc-flash detection component and a...
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...
US20070258174 LOAD DRIVING APPARATUS AND ELECTRIC APPLIANCE THEREWITH  
A multiple-channel load driving apparatus has a plurality of driver circuits supplying drive currents individually to a plurality of loads. Of those driver circuits, at least one limits or stops...
US20070091520 GROUND FAULT CIRCUIT INTERRUPTER HAVING AN INTEGRATED VARIABLE TIMER  
A circuit interrupter having an integrated variable timer circuit for alerting an end-user of an impending test of the circuit interrupter which expands the function of a basic circuit interrupter...
US20060227472 Inverter ground fault circuit  
A batteryless inverter allows for a positive or a negative lead from a photovoltaic array to be attached to a grounding terminal of the inverter. Internally a ground fault voltage is rectified and...
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);...
US20050162788 Differential protection device with simplified protection parameter adjustment means  
Differential protection device comprising differential current measuring means, and a processing unit comprising means for adjusting the fault current threshold setting and means for adjusting a...
US20070159738 Receptacle providing sustained excessive voltage protection  
A receptacle for a power circuit includes a receptacle housing, a line terminal structured to receive a voltage including one of a nominal voltage and a greater excessive voltage, a load terminal,...
US20120212862 METHOD AND DEVICE FOR LIMITING SECONDARY ARC CURRENT OF EXTRA-HIGH VOLTAGE/ULTRA-HIGH VOLTAGE DOUBLE CIRCUIT LINES ON THE SAME TOWER  
A method and a device for limiting secondary arc current of an extra-high voltage/ultra-high voltage double circuit line on the same tower. The method comprises the following steps: determining...
US20050128661 Method and device for protecting a conductor when an electric arc is produced  
In order to recognize an electric arc in a 42V vehicle electrical system and initiate suitable protective measures, a detection line is at least partially guided along a current conducting supply...
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...

Matches 1 - 50 out of 121 1 2 3 >