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)
06/2011
06/01/2011	CN201854011U Neutral point grounding protective device of electric power system
06/01/2011	CN201854010U Multifunctional overvoltage and undervoltage protection monitoring system
06/01/2011	CN201854009U Protector for multi-channel pressurizing device
06/01/2011	CN201854008U Reclosing protector of substation control power supply
06/01/2011	CN201854007U High-precision overcurrent protection circuit
06/01/2011	CN201854006U Control system for safe and instant stop of press
06/01/2011	CN201853902U Energy-saving socket with overvoltage protection
06/01/2011	CN201853666U Residual current control and protection switch for distribution circuit
06/01/2011	CN201853463U Power supply device of LCM testing system
06/01/2011	CN201853261U Self-service charging machine with overvoltage-overcurrent protection circuit
06/01/2011	CN201849426U Automotive high-performance central electrical assembly control box
06/01/2011	CN102084568A Circuit testing closer apparatus and method with dynamic test thresholds
06/01/2011	CN102082425A Automatic control residual current device (RCD) for low voltage network
06/01/2011	CN102082422A Method for preventing fault actions of line longitudinal differential protection caused by non-fault phase secondary current abrupt change
06/01/2011	CN102082421A Implementation method of break variable current differential relay based on differential impedance principle
06/01/2011	CN102082412A Gear motor
06/01/2011	CN102082410A Circuit processing system with intrinsically safe explosion-proof function and safety function
06/01/2011	CN101552450B Pure simulation circuit for realizing undervoltage instantaneous release
06/01/2011	CN101488423B Selective protection switch and operation mechanism thereof
06/01/2011	CN101295871B Laser
06/01/2011	CN101233548B Method for detecting faults of electric network and electric device as well as fire disaster warning facilities
05/2011
05/31/2011	US7952848 Incorporating electrostatic protection into miniature connectors
05/31/2011	US7952847 Lightning protection device
05/31/2011	US7952846 Power line communication method
05/31/2011	US7952843 Arc detection circuit
05/31/2011	US7952842 Circuit interrupter
05/31/2011	CA2413708C Protection zone selection in an electric power system
05/26/2011	WO2011060814A1 Fuzzy interference relay and method for current differential protection of a transmission line
05/26/2011	US20110122539 Method and structure for over-voltage tolerant cmos input-output circuits
05/26/2011	US20110122538 Apparatus for Shutting Off a Fault Current in a Current-Carrying Line
05/26/2011	US20110122536 Power feed control device
05/26/2011	US20110121985 Electronic device
05/26/2011	US20110121984 System for combining direct current power from multiple inputs
05/26/2011	CA2780750A1 Fuzzy interference relay and method for current differential protection of a transmission line
05/25/2011	EP2325966A1 Short-circuit distance relay
05/25/2011	EP2325965A1 Overcurrent detection circuit, inverter, compressor, air conditioner, and overcurrent detection circuit adjusting method
05/25/2011	EP2324547A2 Method for preventing electric shock by contact with connected-to-ground electric appliances and installations, and apparatus therefor
05/25/2011	CN201846529U Circuit board, protecting circuit and device for testing portable mobile terminal clamping seats
05/25/2011	CN201846506U High efficiency light-emitting diode (LED) circuit driven by constant current source
05/25/2011	CN201846127U Programmable switching system for alternating current power supply in transformer substation
05/25/2011	CN201846089U Voltage-regulating type three-phase loading unbalance limiter
05/25/2011	CN201846074U Lightning-proof control device for photovoltaic power generating system
05/25/2011	CN201846070U M-BUS intrinsic safety barrier
05/25/2011	CN201846067U Circuit for real time monitoring and carefully protecting power supply
05/25/2011	CN201846066U Undervoltage protective circuit with delaying function
05/25/2011	CN201846059U Leakage protective circuit of residual current type electrical fire hazard monitoring detector
05/25/2011	CN201846058U Over-voltage/over-current protecting circuit
05/25/2011	CN201846057U Circuit breaker for preventing voltage loss on zero lines
05/25/2011	CN201846056U Boost type LED constant flow source undervoltage protection circuit
05/25/2011	CN201846055U High-precision electric current-limiting circuit breaker
05/25/2011	CN201846054U Protecting device for programmable controller
05/25/2011	CN201846053U General channel protector
05/25/2011	CN201846052U Device for eliminating silicon controlled effect of integrated circuit
05/25/2011	CN201840321U Anti-leakage controller of water purifier
05/25/2011	CN102077436A Method for production of an oscillating signal and electrical protection - or measurement instrument having an oscillation identification device
05/25/2011	CN102077434A Method and device for computer-aided detection of jamming of an object
05/25/2011	CN102077433A Circuit breaker with improved re-closing functionality
05/25/2011	CN102076139A LED lighting circuit
05/25/2011	CN102075137A High-bandwidth servo drive circuit with integral type current amplitude limiter
05/25/2011	CN102074994A Charging device of direct-current (DC) system
05/25/2011	CN102074950A Distribution network ground fault arc extinction and protection method
05/25/2011	CN102074935A Anti-dry heating alarm circuit for rinse tank of solar energy batteries
05/25/2011	CN102074930A Electric leakage detection protective circuit
05/25/2011	CN102074929A Blocking type surge protection device of low-conductive resistor
05/25/2011	CN102074928A Constant-voltage constant-current power supply and automatic calibration method for overvoltage and overcurrent protection thereof
05/25/2011	CN102074927A Earth leakage protection circuit of withstand voltage tester
05/25/2011	CN102074926A Single fire monitor
05/25/2011	CN102074906A Transformer neutral point combination electric equipment
05/25/2011	CN101615522B Intelligent power switch
05/25/2011	CN101552452B Short-circuit protection circuit for switching power supply of frequency converter
05/25/2011	CN101364726B Earthing fault detection and control method for electromagnetic stirring system
05/25/2011	CN101345407B Creepage breaker
05/25/2011	CN101232237B Multiple output power supply
05/25/2011	CN101120496B Device for inductive direct current detection and temperature response compensation of the converter permeability by adapting the frequency of the impressed alternating current
05/25/2011	CN101044663B Device for the safe isolation of a nuclea power plant from a power grid, power plant equipment and industrial equipment
05/24/2011	US7949859 Mechanism for avoiding check stops in speculative accesses while operating in real mode
05/24/2011	US7948728 Semiconductor device and method for inspecting the same
05/24/2011	US7948727 Over-voltage protection circuit
05/24/2011	US7948726 Electrostatic discharge (ESD) protection circuit and method
05/24/2011	US7948723 Method and apparatus for measuring DC current in an AC generator
05/24/2011	US7948722 Differential protection device
05/24/2011	US7948719 Solid state circuit protection system that works with arc fault circuit interrupter
05/24/2011	US7948217 Distributed generation system and power system stabilizing method
05/24/2011	CA2481564C Integrated protection system for electrical distribution
05/24/2011	CA2271441C Electrical switching apparatus employing a circuit for selectively enabling and disabling a close actuator mechanism
05/19/2011	WO2011058318A1 Electrical circuit with surge protection monitoring
05/19/2011	US20110116199 Power Dampener for a Fault Current Limiter
05/19/2011	US20110116196 Protection relay, electrical switching apparatus, and system including a number of controllers for determining and outputting fault current available at a load and incident energy or personal protective equipment level operatively associated therewith
05/19/2011	US20110115495 Communication apparatus and withstand voltage test method
05/18/2011	EP2321660A1 Method and apparatus for fast fault detection
05/18/2011	EP2229685B1 Arc protection module
05/18/2011	EP1438778B1 Method for monitoring the reversing process of electrically actuatable units
05/18/2011	CN201839218U Low-power consumption three-phase power circuit and application thereof
05/18/2011	CN201838997U Power-on protection circuit
05/18/2011	CN201838990U Electric automobile leakage protection system
05/18/2011	CN201838987U Automatic reset breaker with high safety
05/18/2011	CN201838986U Leakage protector
05/18/2011	CN201838985U A-leakage circuit
05/18/2011	CN201838984U Electric wiring protection device
05/18/2011	CN201838983U Leakage protection device of health-care electronic footbath

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