Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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12/11/2007 | US7307820 Systems, methods, and device for arc fault detection |
12/11/2007 | US7307462 Self-oscillating driver with soft start circuit |
12/11/2007 | US7307429 Apparatus for testing an arc fault circuit interrupter |
12/06/2007 | WO2007047860A3 Method of detecting faults using graduated fault detection levels |
12/06/2007 | US20070282548 Method and Apparatus for Assessing Condition of Motor-Driven Mechanical System |
12/06/2007 | US20070279821 Low-loss rectifier with shoot-through current protection |
12/06/2007 | US20070279820 System and method providing over current and over power protection for power converter |
12/06/2007 | US20070279818 Load abnormality detection circuit |
12/06/2007 | US20070279814 Self testing ground fault circuit interrupter (gfci) with end of life (eol) indicator, secondary power supply for eol and self test circuitry, and device for opening line hot when eol occurs |
12/06/2007 | US20070279813 Over-voltage protection for voltage regulator modules of a parallel power system |
12/06/2007 | US20070279811 Protection device |
12/06/2007 | US20070278862 Structure to control a magnetic reed switch |
12/06/2007 | US20070278580 Semiconductor integrated circuit device |
12/06/2007 | DE202007013644U1 Stromunterbechungsvorrichtung Stromunterbechungsvorrichtung |
12/06/2007 | DE102006031229B3 Electrical system overvoltage protecting device, has enclosure lower part with insertion opening for printed circuit board, where enclosure side walls and/or part has locking pins to secure position of board |
12/05/2007 | EP1550192A4 System and method for application monitoring and automatic disaster recovery for high-availability |
12/05/2007 | CN200987068Y Voltage self-adapting DC low voltage releasing controller |
12/05/2007 | CN200987067Y Computer energy-saving and life prolonging switch |
12/05/2007 | CN200987066Y Household line protector |
12/05/2007 | CN200987065Y Overcurrent protection circuit for power supply apparatus |
12/05/2007 | CN200987064Y Non-power consumption single-phase current-limiting device |
12/05/2007 | CN200987063Y Lightning arrester deviation automatic display apparatus |
12/05/2007 | CN200987013Y Current failure self-locking electrical source plug |
12/05/2007 | CN200987011Y Electrical source plug, socket with fault arc circuit protection function |
12/05/2007 | CN200986907Y Load limiting circuit breaker |
12/05/2007 | CN200986569Y Ammeter box |
12/05/2007 | CN200986319Y Electric water heater electricity proof installation with time sharing testing function |
12/05/2007 | CN101083438A Flow type power supply linking circuit apparatus |
12/05/2007 | CN101083393A Steering circuit for earthing fault breaker |
12/05/2007 | CN101083392A DC power supply surge suppressor |
12/05/2007 | CN101083391A TMS2812 relay protector based novel anti-jump loop |
12/05/2007 | CN101083390A TMS2812 relay protector based DC monitor circuit |
12/05/2007 | CN100353635C Faulty phase selection element for transmission line of electric system |
12/05/2007 | CN100353630C Circuit longitudinal differential protection braking curve and closed locking angle testing method |
12/05/2007 | CN100353629C Phase loss (off) alarm protector for electric heating component of electric boiler |
12/05/2007 | CN100353287C Method for media content presentation in consideration of system power |
12/04/2007 | US7305586 Accessing and manipulating microprocessor state |
12/04/2007 | US7305584 Data restoring method and an apparatus using journal data and an identification information |
12/04/2007 | US7305291 Mobile energy management system |
12/04/2007 | US7305290 Controlling device of a regulating device of a motor vehicle |
12/04/2007 | US7304829 Apparatus and method for filtering current sensor output signals |
12/04/2007 | US7304826 Fault management of high temperture superconductor cable |
12/04/2007 | US7304403 Power signaling based technique for detecting islanding conditions in electric power distribution systems |
12/04/2007 | CA2181491C Ground fault circuit interrupt system including auxiliary surge suppression ability |
11/29/2007 | WO2007137180A2 Bi-directional ground fault circuit interrupter |
11/29/2007 | WO2007137087A2 Integrated programmable over-current protection circuit for optical transmitters |
11/29/2007 | WO2007135162A1 A method of detecting faults on an electrical power line |
11/29/2007 | WO2007134768A1 Device for automatically switching off or switching an electrical consumer |
11/29/2007 | WO2007134766A1 Device for automatically switching off or switching an electrical consumer |
11/29/2007 | WO2006079975A3 Machine condition indication system |
11/29/2007 | US20070276613 Automatic Trip Device, Network System using it And Control Method Thereof |
11/29/2007 | US20070274015 DC-DC converters having improved current sensing and related methods |
11/29/2007 | US20070274014 Integrated Snubber Device on a Semiconductor Basis for Switching Load Reduction, Voltage Limitation and/or Oscillation Attenuation |
11/29/2007 | US20070274013 Electronic Circuit Configuration for Connecting at Least One Active Rotary Speed Sensor, Especially in Commercial Vehicles |
11/29/2007 | US20070274012 Bi-directional ground fault circuit interrupter |
11/29/2007 | US20070273546 Electronic Protection Devices For Circuit-Breakers And Corresponding Programming Method |
11/29/2007 | DE102007015728A1 Ansteuerschaltung Drive circuit |
11/29/2007 | DE102006025607A1 Vorrichtung zum selbsttätigen Abschalten oder Schalten eines elektrischen Verbrauchers Apparatus for automatically switching off or switching an electrical load |
11/29/2007 | DE102006025605A1 Vorrichtung zum selbsttätigen Abschalten oder Schalten eines elektrischen Verbrauchers Apparatus for automatically switching off or switching an electrical load |
11/29/2007 | DE102006025604A1 Vorrichtung zum selbsttätigen Abschalten oder Schalten eines elektrischen Verbrauchers Apparatus for automatically switching off or switching an electrical load |
11/29/2007 | CA2652771A1 Bi-directional ground fault circuit interrupter |
11/28/2007 | EP1859465A1 Electric supply circuit, switch actuating device and method for operating said switch actuating device |
11/28/2007 | CN200983557Y DC line frame commutation power supply for mine with current leakage protection function |
11/28/2007 | CN200983552Y A DC power monitoring circuit |
11/28/2007 | CN200983516Y External start-up power supply for automatic reaction motor |
11/28/2007 | CN200983502Y Free-grounding thunder-prevention device |
11/28/2007 | CN200983500Y A power supply thunder-proof box |
11/28/2007 | CN200983497Y Integrated thunder-prevention distribution tray |
11/28/2007 | CN200983496Y Power grid single-phase grounding protection device |
11/28/2007 | CN200983495Y Quick fusion mixed current limit switch |
11/28/2007 | CN200983494Y Quick recovery mixed current limit switch |
11/28/2007 | CN200983493Y Intelligent signal lighting control device for coal mine |
11/28/2007 | CN200983492Y Fuse-free control device with power carrier |
11/28/2007 | CN200983467Y Remote intelligent integrated distribution box |
11/28/2007 | CN200983349Y Integrated residual current protection relay |
11/28/2007 | CN101079545A An automated re-close brake of high-voltage transmission line |
11/28/2007 | CN101079540A Automatic trip device, network system using it and control method thereof |
11/28/2007 | CN100352122C Surge protector with piece separation |
11/28/2007 | CN100352121C Power source short-circuit protection apparatus |
11/28/2007 | CN100352120C Double parasitic current protector |
11/27/2007 | US7302609 Method and apparatus for executing applications on a distributed computer system |
11/27/2007 | US7302578 Information processing apparatus, image forming apparatus, program-initiation error processing method, and recording medium |
11/27/2007 | US7302566 Internet security system |
11/27/2007 | US7302047 Method of detecting remote ground condition |
11/27/2007 | US7301789 Adjustable speed drive protection |
11/27/2007 | US7301742 Method and apparatus for accessing and activating accessory functions of electronic circuit breakers |
11/27/2007 | US7301741 Integrated circuit with multiple independent gate field effect transistor (MIGFET) rail clamp circuit |
11/27/2007 | US7301739 Ground-fault circuit-interrupter system for three-phase electrical power systems |
11/27/2007 | US7301738 Method and apparatus for minimally invasive network monitoring |
11/27/2007 | CA2194380C Movable barrier operator having force and position learning capability |
11/26/2007 | CA2585110A1 Current-transformed power source connecting circuit device |
11/22/2007 | WO2007133169A1 Description electro-ageeb electrical safety device |
11/22/2007 | WO2007132551A1 Protection relay device, protection relay device control method, and control program |
11/22/2007 | WO2007078528A3 System, method and apparatus for distributing video-on-demand (vod) |
11/22/2007 | US20070268655 Device and method for providing electric service |
11/22/2007 | US20070268642 Integrated programmable over-current protection circuit for optical transmitters |
11/22/2007 | US20070268641 Primary side control module and method for protection of MOSFET against burnout |
11/22/2007 | US20070268640 Relay circuit |
11/22/2007 | US20070268639 Method and device for stopping an electrical apparatus supplied by a plurality of power sources, apparatus equipped with one such device, and system comprising one such device |
11/22/2007 | US20070268635 Bi-directional ground fault circuit interrupter |