Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
11/2008
11/06/2008CA2630760A1 Method of detecting a ground fault and electrical switching apparatus employing the same
11/05/2008EP1987574A1 Jamming protection and method for controlling a motor-driven adjusting apparatus
11/05/2008EP1987573A1 Method for limiting the excess force of a closing part which is actuated by an external force
11/05/2008EP1058871B1 Dc power bus voltage transient suppression circuit
11/05/2008CN201146399Y Inverter for automobile
11/05/2008CN201146385Y Apparatus for discrimination and protection of eliminating single phase ground fault of neutral point non-useful earthing electric network
11/05/2008CN201146384Y Power supply lightning protection box
11/05/2008CN201146380Y Protective equipment for decompression, phase-off and self-switchover
11/05/2008CN201146372Y Protection system for motor
11/05/2008CN201146369Y Complete current type residual current motion apparatus with function of element fault automatic tripping
11/05/2008CN201146368Y Charging low-voltage protection circuit
11/05/2008CN201146367Y Machine for automatically judging and correcting inverse-connection of phase line and zero line
11/05/2008CN201146366Y Shunt-opening tripping type equipment for protecting single-phase short circuit
11/05/2008CN201146365Y Compound controller
11/05/2008CN201146364Y Self-recovering type voltage deviation protector
11/05/2008CN201146297Y Energy-saving power socket capable of closing down intelligently
11/05/2008CN201146164Y Electric power exception protective circuit for breaker
11/05/2008CN201146162Y Earth leakage protective breaker for non-motion dead region
11/05/2008CN201146158Y Air circuit breaker
11/05/2008CN201145846Y Apparatus for monitoring electric fire disaster
11/05/2008CN201143074Y Controller with self-diagnosis function for electric heating blanket
11/05/2008CN101299529A Overflow protection circuit for active power factor correcting circuit
11/05/2008CN100431232C Estimating of power transmission net state
11/05/2008CN100431230C Power supply device for low-voltage electronic residual current circuit breakers
11/05/2008CN100431035C Method for managing shortage position in data storage medium and recording medium
11/04/2008US7447933 Fail-over storage system
11/04/2008US7447568 Electric power network
11/04/2008US7447002 Fuse module with movable fuse holder for fused electrical device
11/04/2008US7446539 Identifying apparatus for AC power supply arrangement
11/04/2008US7446507 Overcurrent detection method and detection circuit
11/04/2008US7446436 Waveform correction filters
10/2008
10/30/2008WO2008128871A1 Circuit breaker and examination device for a circuit breaker, in particular for a low-voltage circuit breaker
10/30/2008WO2008110540A3 Switch, especially fuse switch disconnector, and overvoltage protector for said disconnector
10/30/2008WO2007056668A3 Circuit interrupting device with reverse wiring protection
10/30/2008US20080267234 Apparatus for dissipating heat in electro-optical communications systems
10/30/2008US20080266740 Overvoltage protection in a power supply
10/30/2008US20080266738 Over-current protection device for a switched-mode power supply
10/30/2008US20080266737 Biometric reader protection system and method
10/30/2008US20080266736 Method and Apparatus for Implementing APS Voltage Level Activation With Secondary Chip in Stacked-Chip Technology
10/30/2008US20080266735 Method and Apparatus for Implementing APS Voltage Level Activation With Secondary Chip in Stacked-Chip Technology
10/30/2008US20080266734 Radiation-triggered semiconductor shutdown device
10/30/2008US20080266733 Circuit Testing Closer Apparatus and Method With In-Rush Current Awareness
10/29/2008EP1986291A2 Laser having a ground fault protection device
10/29/2008EP1984996A1 Electrical switching apparatus and receptacle including automatic miswiring protection
10/29/2008EP1984995A1 Method for identifying an earth fault in a resonant-earthed three-phase power transmission system, or a three-phase power transmission system which is isolated from earth potential
10/29/2008EP1984750A1 Method and arrangement for testing a protective device processing digital sampling data
10/29/2008EP1103057B1 Arc fault detection system
10/29/2008CN201142665Y Control device of intelligent generator
10/29/2008CN201142568Y Intelligent out-of-step protection device for synchronization motor
10/29/2008CN201142567Y Secondary side open circuit protecting equipment of current mutual inductor
10/29/2008CN201142565Y Miniature duplex electric fire disaster monitoring alarm embedded on cabinet door of power distribution cabinet
10/29/2008CN201142564Y Control and protection circuit for controlling and protecting switch electric appliance
10/29/2008CN201142563Y Breaker
10/29/2008CN201142562Y Short circuit fault current limiter with adjustable impedance
10/29/2008CN201142561Y Digital line protection device
10/29/2008CN201142470Y Neutral grounding fault creepage protecting plug
10/29/2008CN201142469Y Power socket with overvoltage protection function
10/29/2008CN201142467Y Creepage protecting plug
10/29/2008CN201142309Y Multifunctional electric leakage circuit breaker
10/29/2008CN101297447A Circuit testing closer apparatus and method with in-rush current awareness
10/29/2008CN101295874A Electric power line pilot protection decision method based on fault component positive sequence synthetic impedance
10/29/2008CN101295871A Laser
10/29/2008CN101295868A Low-voltage auto-off reminding method and device, and mobile terminal
10/29/2008CN101295867A Overload protecting switch device
10/29/2008CN101295866A Circuit board with protection circuit and its protection circuit
10/29/2008CN101295610A Circuit breaker and SPD protection system employing the circuit breaker
10/29/2008CN101295609A Circuit protection device for automatically monitoring operation disturbance
10/29/2008CN101295006A Testing device and protecting equipment for capacitor structure
10/29/2008CN101294994A Three-phase four-wire system electric energy quantifier with overload protection
10/29/2008CN100429851C Input detecting circuit for earth-leakage protector with self-diagnosing function
10/29/2008CN100429850C Self-controlled circuit break protective circuit
10/28/2008US7444567 Method and apparatus for unifying self-test with scan-test during prototype debug and production test
10/28/2008US7443646 Environmentally hardened ethernet switch
10/28/2008US7443645 Overcurrent detecting device
10/28/2008US7443644 Circuit for preventing malfunction of arc fault detection device
10/28/2008US7443641 DC-DC converter including short-circuit protection circuit
10/28/2008US7443308 Enhanced AC immunity in ground fault detection
10/23/2008WO2008127032A1 Power cutoff device automatically operated upon occurrence of spark on electric wire
10/23/2008WO2008126240A1 Synchronous phasor measuring device and inter-bus phase angle difference measuring device employing it
10/23/2008WO2008125070A1 Method for generating a characteristic curve of a low-voltage switching device
10/23/2008US20080263412 Program failure recovery
10/23/2008US20080262582 Implantable medical electrical lead and connector assembly
10/23/2008US20080259533 Power distribution unit with two pole circuit breaker
10/23/2008US20080259516 Protector for instant driving circuit of electric device
10/23/2008US20080259515 Power Switching Apparatus With Open-Load Detection
10/23/2008US20080259514 Method, apparatus, and computer program product for detecting excess current flow in a pluggable component
10/23/2008US20080259513 Secondary battery protection device
10/23/2008US20080258834 Pulse width modulation circuit
10/23/2008US20080258691 Over voltage and over current protection integrated circuit
10/23/2008US20080258667 Test module for motor control center subunit
10/23/2008US20080258551 Communication circuit for a digital electronic dimming ballast
10/23/2008DE102007018814A1 Elektrischer Stromkreis Electrical Circuit
10/23/2008CA2675010A1 Synchrophasor measuring device and inter-bus-line phase angle difference measurement unit using the same
10/22/2008EP1983631A1 Electrical circuit
10/22/2008EP1983630A2 Secondary protection approach for power switching applications
10/22/2008EP1983295A1 Device for protecting an oscillating power circuit
10/22/2008EP1982395A1 Method and adaptive distance protection relay for power transmission lines
10/22/2008CN201138745Y Leakage protector for motor
10/22/2008CN201138737Y Multifunctional leakage protecting equipment preventing earth wire to be charged and alarming
10/22/2008CN201138736Y Residual current protecting equipment added with zero sequence current monitoring apparatus
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