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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02/08/2011 | US7884618 Testing system for electricity safety and a testing method therefor |
02/08/2011 | CA2359500C Fault type selection system for identifying faults in an electric power system |
02/03/2011 | WO2011013265A1 Protection control monitoring device |
02/03/2011 | WO2011012450A1 Device and method for providing electrical energy at a load circuit |
02/03/2011 | WO2011011985A1 Surge protector with thermal protection device |
02/03/2011 | US20110029958 Time-based breakpoints in debugers |
02/03/2011 | US20110026184 Overvoltage protection element |
02/03/2011 | US20110026183 Circuit protection device and system |
02/03/2011 | US20110026182 Swell sustaining transient voltage surge suppressor |
02/03/2011 | US20110026181 Protective switching device for monitoring the electrical current flow to an electrical user and method for monitoring the electrical current flow to an electrical user by way of a protective switching device |
02/03/2011 | US20110026180 Integrator and circuit-breaker having an integrator |
02/03/2011 | US20110026178 Interface circuit and communication device |
02/03/2011 | US20110026171 Electronic Device for Protecting Against a Polarity Reversal of a DC Power Supply Voltage, and its Application to Motor Vehicles |
02/03/2011 | US20110025515 Standalone self-supplied numeric controlled relay |
02/03/2011 | US20110025400 Electronic dc circuit breaker |
02/02/2011 | EP2279559A1 Relay system comprising two jfet transistors in series |
02/02/2011 | EP2279513A1 Surge arrester comprising an integrated protection device |
02/02/2011 | CN201733089U Surge protector |
02/02/2011 | CN201733076U Protecting device for phase failure display of electric motor |
02/02/2011 | CN201733067U Multi-path residual current monitoring device with wireless or carrier transmission module |
02/02/2011 | CN201733066U High-voltage electrified display locking device based on fundamental wave and phase |
02/02/2011 | CN201733065U Low-voltage single-phase power source overvoltage protective device |
02/02/2011 | CN201733064U Intelligent integrated over-voltage protector for electric locomotive |
02/02/2011 | CN201733063U Over-voltage dual protector |
02/02/2011 | CN201733062U Automatic alarm circuit for short-circuit protection of DC power supply |
02/02/2011 | CN201733061U Protection module of semiautomatic block information transmission conversion device |
02/02/2011 | CN201733060U Intelligent electricity-limiting miniature circuit breaker |
02/02/2011 | CN201733059U Power supply short-circuit protection circuit |
02/02/2011 | CN201733058U Universal breaker power-on automatic switching on device |
02/02/2011 | CN201733057U Intelligent protective device for coaches |
02/02/2011 | CN201732983U Mine flameproof intrinsically safe electromagnetic starter |
02/02/2011 | CN101965669A Electronic DC circuit breaker |
02/02/2011 | CN101965620A Residual-current circuit breaker |
02/02/2011 | CN101964518A Electrostatic protection device |
02/02/2011 | CN101964516A Three-phase four-wire system zero-line failure and open-phase intelligent protector |
02/02/2011 | CN101964512A Electric leakage protector with overvoltage protective device |
02/02/2011 | CN101964511A Overcurrent protection circuit and television |
02/02/2011 | CN101964510A Radioactive source monitoring system |
02/02/2011 | CN101964509A Method and device for preventing power of electric equipment from exceeding standard and electric equipment |
02/02/2011 | CN101963835A Electronic equipment and method for dynamically allocating USB port power |
02/02/2011 | CN101505048B Apparatus for circuit break while door closing |
02/02/2011 | CN101336017B High-voltage transforming cubicle automatic control device suitable for electric arc heater |
02/02/2011 | CN101187956B A device and method for realizing simulated DC feedback failure of rail traffic |
02/02/2011 | CN101055999B Charge/discharge protection circuit and power-supply unit |
02/01/2011 | US7882400 Information processing apparatus, storage medium supporting device, and identifier changing method |
02/01/2011 | US7881030 Enhancement-mode field effect transistor based electrostatic discharge protection circuit |
02/01/2011 | US7881029 Depletion-mode field effect transistor based electrostatic discharge protection circuit |
02/01/2011 | US7881026 Semiconductor integrated circuit |
01/27/2011 | US20110019444 Method and apparatus for detection and control of dc arc faults |
01/27/2011 | US20110019324 Protection Apparatus of Load Circuit |
01/27/2011 | US20110019321 Leakage sensor and switch device for deep-trench capacitor array |
01/27/2011 | US20110019320 Esd networks for solder bump integrated circuits |
01/27/2011 | DE102010027406A1 Electrical appliance e.g. battery-powered drill, has voltage supply supplying load to electric motor, where load is disconnected when electrical voltage of voltage supply below and/or exceeds limit value |
01/27/2011 | DE102009032067A1 Vorrichtung zum Schutz eines Gleichstrom-Wandlers Device for protecting a direct current converter |
01/26/2011 | EP2278676A1 Fault direction indicator device and related methods |
01/26/2011 | EP2278670A1 Signalisation device of the short-circuit state of an overvoltage protection arrester of one phase of an electric transport net |
01/26/2011 | EP2277250A2 Quarter wave stub surge suppressor with coupled pins |
01/26/2011 | CN201726200U Low-voltage phase line grounding remote alarm for 10-20kV transformer |
01/26/2011 | CN201726189U Power supply for emergency tripping system |
01/26/2011 | CN201726120U DC voltage reduction open circuit protector |
01/26/2011 | CN201726115U Voltage fluctuation delay protective device of contactor |
01/26/2011 | CN201726110U Distribution-transformer induced frequency-discrimination open-phase wireless alarm |
01/26/2011 | CN201726107U Alarm with electrically controlled lock for preventing mistakenly entering charged chamber |
01/26/2011 | CN201726105U Multifunctional air conditioner protection circuit |
01/26/2011 | CN201726104U A-type residual current operated circuit breaker of electronic belt permanent magnet tripping device |
01/26/2011 | CN201726103U A-type residual current operated circuit breaker of electronic permanent magnetic releaser |
01/26/2011 | CN201726102U Intelligent current leakage protection circuit |
01/26/2011 | CN201726101U Multi-purpose residual current relay |
01/26/2011 | CN201726100U Power adapter with overvoltage and automatic recovery |
01/26/2011 | CN201726099U Voltage deviation operated protector |
01/26/2011 | CN201726098U Multifunctional circuit for controlling and protecting switching device |
01/26/2011 | CN201726097U Circuit breaker capable of detecting and controlling electric current change |
01/26/2011 | CN201726096U Short circuit protecting device of switching electrical equipment |
01/26/2011 | CN201722512U Safety device of drum dyeing machine |
01/26/2011 | CN201722384U Current protecting device of wireless sensing infrared sterilization inoculating instrument |
01/26/2011 | CN101959352A LED driving circuit with LED short-circuit protection |
01/26/2011 | CN101959348A LED stepless dimming drive circuit and LED lamp |
01/26/2011 | CN101958534A Electrostatic discharge module and mobile communication device with electrostatic discharge module |
01/26/2011 | CN101958529A Residual current breaker switch with additional trigger switch |
01/26/2011 | CN101958528A Leakage protection method and device |
01/26/2011 | CN101958527A Boost type LED constant flow source under-voltage protection circuit |
01/26/2011 | CN101954893A Soft-start device of electromobile |
01/26/2011 | CN101546910B Surge protector |
01/26/2011 | CN101340083B Bearing current measuring and protecting apparatus of three-phase cage type induction motor |
01/26/2011 | CN101076766B Improved circuit for portable lighting equipment and portable chargeable electronic equipment |
01/25/2011 | US7876544 Electrical circuit with incendive arc prevention means |
01/25/2011 | US7876543 Gas discharge lamp power supply |
01/25/2011 | US7876539 Electrical apparatus with current dampening device |
01/25/2011 | US7876538 Micro-electromechanical system based arc-less switching with circuitry for absorbing electrical energy during a fault condition |
01/25/2011 | US7875822 Ablative-based multiphase current interrupter |
01/25/2011 | US7874410 Intravenous pole power organizer (IVPPO) |
01/25/2011 | CA2547867C Apparatus and method for simultaneously detecting the power state of a plurality of circuit breaker switches |
01/20/2011 | US20110013335 Electrical Protection Component with a Short-Circuiting Device |
01/20/2011 | US20110013334 Electrical Protection Component with a Short-Circuiting Device |
01/20/2011 | US20110012564 Dc power tool with a safety detection device |
01/20/2011 | DE202010015607U1 USB-USB Isolator mit automatischer Speed-Einstellung und Überlastschutz USB USB isolator with automatic speed adjustment and overload protection |
01/20/2011 | DE102009027665A1 Elektronisch kommutierter Elektromotor mit einem Verpol- und Überspannungsschutz und Verfahren Electronically commutated electric motor with reverse polarity and over-voltage protection and procedures |
01/19/2011 | EP2276141A2 Automotive vehicle charge port with fault interrupt circuit |
01/19/2011 | EP2276136A1 Excess voltage protection for inverter with input EMC filter |
01/19/2011 | EP2276135A1 Load circuit protection device |