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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12/27/2007 | WO2007147941A1 System and method for determining phase-to-earth admittances of a three-phase electric line |
12/27/2007 | WO2007044930A3 Control and protection methodologies for a motor control module |
12/27/2007 | US20070300101 Rapid regeneration of failed disk sector in a distributed database system |
12/27/2007 | US20070297112 Energy saver |
12/27/2007 | US20070297111 Low frequency switch |
12/27/2007 | US20070297110 Electrical Distribution System |
12/27/2007 | US20070297109 System and method for protecting against short circuits in electric power distribution architectures with two voltage levels |
12/27/2007 | DE112004003035T5 Verfahren zur Feststellung von Zuständen mit Erdschluss bei einer Motorsteuerung A method for determining states with ground fault in an engine control |
12/27/2007 | DE102006028708A1 Schaltungsanordnung zur Unterspannungserkennung einer Energiequelle Circuit arrangement for undervoltage detection of an energy source |
12/26/2007 | EP1869746A1 Method and arrangement for increasing and guaranteeing the selectivity of a switch device in a group of switch devices and use of the arrangement for switching in power circuits |
12/26/2007 | CN200997526Y Zener safty grid |
12/26/2007 | CN200997522Y Split-phase current differential protecter |
12/26/2007 | CN200997521Y Electric controller against earth wire for regenerative electric water heater |
12/26/2007 | CN200997520Y Dosmetic distributing case |
12/26/2007 | CN200997519Y Electric controller against earth wire for instant-heating electric heater |
12/26/2007 | CN200997518Y Electric fire protecter |
12/26/2007 | CN200997517Y Self-thrower of convering station |
12/26/2007 | CN200996579Y Luminescent light |
12/26/2007 | CN101095270A A method and a device for controlled reclosing of a circuit breaker |
12/26/2007 | CN101093936A Device for cutting off voltage of abnormal power supply |
12/26/2007 | CN100358210C Anti-shock anti-short circuit no-contact energy saving safety device for three phase AC power source |
12/26/2007 | CN100358205C All fault-current sensitive protection device |
12/26/2007 | CN100358204C Leakage protector circuit for electric water heater |
12/26/2007 | CN100358203C AC self-resetting cut-off alarming device |
12/25/2007 | US7313718 System and method for the prevention of corruption of networked storage devices during backup data recovery |
12/25/2007 | US7312969 Current control apparatus for electric load |
12/25/2007 | US7312968 Starter-relay control circuit with self fault diagnosis function |
12/25/2007 | US7312965 Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
12/25/2007 | US7312964 Ground-fault monitor for multiple circuits |
12/25/2007 | US7312963 Protective device with tamper resistant shutters |
12/23/2007 | CA2593646A1 Circuit interrupter including nonvolatile memory storing cause-of-trip information |
12/21/2007 | WO2007144032A1 Switching circuit |
12/21/2007 | WO2007143879A1 Ground fault circuit interrupter with end-of-life protection |
12/20/2007 | US20070294571 Method and apparatus of recording data in the optical recording medium |
12/20/2007 | US20070294569 Method and apparatus of recording data in the optical recording medium |
12/20/2007 | US20070291434 Protection circuit |
12/20/2007 | US20070291433 Apparatus and method for scalable power distribution |
12/20/2007 | US20070291430 Apparatus and method for scalable power distribution |
12/20/2007 | US20070291428 Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof |
12/20/2007 | US20070291427 Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof |
12/20/2007 | DE19860721B4 Dreipunkt-Umrichter und Verfahren zu seinem Betreiben Three-point converter and method for its operation |
12/19/2007 | EP1868273A2 Automatic trip device, network system using it and control method thereof |
12/19/2007 | EP1867027A1 Electricity distribution network with stray voltage monitoring and method of transmission of information on said network |
12/19/2007 | CN200994061Y Refrigerator power-saving protector |
12/19/2007 | CN200994060Y PFC overcurrent protection circuit and air conditioner with same |
12/19/2007 | CN200994059Y Intelligent controller of power module with current sampling function |
12/19/2007 | CN200994025Y Leakage protection socket |
12/19/2007 | CN200993948Y Safety earth fault circuit breaker |
12/19/2007 | CN101091297A 保护电路以及电池组件 Protection circuit and battery pack |
12/19/2007 | CN101091296A Method for detecting earth-fault conditions in motor a controller |
12/19/2007 | CN101090200A Surge suppressor having element for enhancing safety, electronic device, and method |
12/19/2007 | CN101090198A Safety alarm device for power line |
12/19/2007 | CN101090185A Universal safety plug with earth wire hot-line alarm |
12/19/2007 | CN101089772A Voltage generator and power supply circuit |
12/19/2007 | CN101089496A Air conditioner and its distribution error detection method |
12/19/2007 | CN100356651C Automatic tracking protector for earth leakage and operation method thereof |
12/19/2007 | CN100356650C Intelligent data collecting and overvoltage protective system for high and medium voltage power device |
12/19/2007 | CN100356649C Cable fixed zero-power miniaturized over-current relay |
12/19/2007 | CN100356648C Multipath solid-state power switch digitized integration controlling method |
12/18/2007 | US7310701 Method for analyzing performance information |
12/18/2007 | US7310212 Connector |
12/18/2007 | US7310211 Method for suppressing latch-ups occurring in a circuit, and systems for carrying out said method |
12/18/2007 | US7310049 Status indicator |
12/18/2007 | US7310025 Oscillator circuit and integrated circuit incorporating the same |
12/18/2007 | US7309993 Three- or four-pole low-voltage power switch with Rogowski coils operating as current sensors |
12/18/2007 | US7309971 Opening and closing body control device |
12/13/2007 | WO2007142015A1 Excess voltage protection circuit, method of protecting a circuit from excess voltage, and semiconductor apparatus having the excess voltage protection ciruit |
12/13/2007 | WO2007140836A1 Device for inspecting an electrical line's protection element and for verifying said electrical line |
12/13/2007 | US20070288798 Error detection and recovery within processing stages of an integrated circuit |
12/13/2007 | US20070285864 Power supply circuit structure comprising a current sensor, and method of assembling the same |
12/13/2007 | US20070285863 Driving circuit |
12/13/2007 | US20070285862 Snubber circuit |
12/13/2007 | US20070285861 Over-voltage protection circuit and method thereof |
12/13/2007 | US20070285860 Method and system for ESD protection of balanced circuit board lines |
12/13/2007 | US20070285859 Fan system and power monitoring apparatus thereof |
12/13/2007 | US20070285857 Coordinated fault protection system |
12/13/2007 | US20070285850 Power switching control apparatus |
12/13/2007 | US20070285266 System and method for evaluating ground-fault circuit interrupters |
12/13/2007 | DE102007016651A1 Leadless integrierte Schaltungsschutzeinrichtung Leadless integrated circuit protective device |
12/13/2007 | DE102006026405A1 Circuit arrangement for motor vehicle-electrical system, has main switch arranged in supply line and triggered by sensor in case of over voltage to separate load from voltage supply |
12/13/2007 | CA2654135A1 Gfci with self-test and remote annunciation capabilities |
12/12/2007 | EP1864363A1 Method for storing individual data items of a low-voltage switch |
12/12/2007 | CN200990507Y Fusing combined surge protector |
12/12/2007 | CN200990499Y DSP relay protection controller based on ripple theory |
12/12/2007 | CN200990498Y Three-phase power supply phase-sequence detection and open-phase protection circuit |
12/12/2007 | CN200990497Y Current type external digital to analog conversion zero ground wire detection interface anti-electric wall detecting chip |
12/12/2007 | CN200990496Y Automatic overvoltage overcurrent electrical shock and leakage protector |
12/12/2007 | CN200990495Y Overcurrent protection state indicating circuit |
12/12/2007 | CN200990455Y Electricity leakage protection socket with service life terminal detection function |
12/12/2007 | CN101087121A 供电系统 Power supply system |
12/12/2007 | CN101087063A A high-voltage battery system and secure protection method |
12/12/2007 | CN101087062A Intelligent management device of single user power site |
12/12/2007 | CN101086937A Intelligent AC vacuum contactor |
12/12/2007 | CN100355181C A charging circuit and charging method and equalizing charger therefor |
12/12/2007 | CN100355174C Improved digital protection and control device and method thereof |
12/12/2007 | CN100355072C Electrostatic discharge protection circuitry and method of operation |
12/12/2007 | CN100354777C Integrated protection, monitoring and control system |
12/11/2007 | US7308614 Control sequencing and prognostics health monitoring for digital power conversion and load management |
12/11/2007 | US7307948 System with multiple path fail over, fail back and load balancing |
12/11/2007 | US7307822 Semiconductor integrated circuit apparatus |