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)
10/2009
10/21/2009CN201332060Y Energy-conserving environment-protecting type alternating current-direct current contactor controller
10/21/2009CN101563823A Fuse and breaker alarm device and method using a finite state machine
10/21/2009CN101563821A Automatic function with selectable fuse rating for single fuses and fuse panels
10/21/2009CN101562405A Multifunctional high-voltage power supply
10/21/2009CN101562336A Surge protective device
10/21/2009CN101562333A Fast current protection method for distribution network containing distributed power
10/21/2009CN101562332A Self-adaptive current fast tripping protection method for distribution network comprising inverse distributed power
10/21/2009CN101562328A Residual current circuit breaker
10/21/2009CN101562327A Overvoltage protective device in wireless fixed phone charging mode
10/21/2009CN101562326A Current gain control of circuit breaker trip unit
10/21/2009CN101562325A Circuit breaker having seperate restrained and unrestrained zone selective interlock setting capability
10/21/2009CN101562324A Trip unit and method having a defined trip function for ground fault protection
10/21/2009CN101562323A Short-circuit protection circuit
10/21/2009CN101562322A Network power supply graded latch-selective power-off control system under coal mine well
10/21/2009CN101562095A Intelligent controller
10/21/2009CN100553096C Ground fault detection system and method for inverter
10/21/2009CN100553063C Power supply switch circuit capable of avoiding overgreat load of bus interface and related drive method
10/21/2009CN100553060C Socket type earthing fault circuit breaker with function of coil broken circuit fault indication
10/21/2009CN100552638C System and method for automatically and dynamically optimizing application data resources to meet business objectives
10/21/2009CN100552465C Method of detecting triphase asymmetry failure in low voltage line and comprehensive protection module
10/20/2009US7606696 Programmable extended compression mask for dynamic trace
10/20/2009US7606017 Protection device: surge suppressing conductor
10/20/2009US7606016 Power amplifier protection
10/20/2009US7606015 Power semiconductor device architecture for output transistor protection
10/20/2009US7606013 Electro-static discharge protection circuit
10/20/2009US7606012 Semiconductor device and designing method for the same
10/20/2009US7605567 Battery protecting circuit and battery with such protecting circuit
10/15/2009WO2009126669A2 Quarter wave stub surge suppressor with coupled pins
10/15/2009WO2009124884A1 Apparatus and method for recognizing an error in a power bridge circuit
10/15/2009WO2009124818A1 Relay system comprising two jfet transistors in series
10/15/2009WO2009124338A1 An electrical protection device and an electrical distribution system including an electrical protection device
10/15/2009US20090257165 Overcurrent Switching Apparatus
10/15/2009US20090257164 Protection device, protection method using the same, method for processing signal using the same, and method for detecting quantity of electricity using the same
10/15/2009US20090257163 Current gain control of circuit breaker trip unit
10/15/2009US20090257162 Technique for combining in-rush current limiting and short circuit current limiting
10/15/2009US20090257161 Rechargeable battery protection device
10/15/2009US20090257160 Universal trip unit
10/15/2009US20090257159 Short circuit protection circuit
10/15/2009US20090257158 Circuit breaker zone selective interlock for differentiated faults and method of operation
10/15/2009US20090257157 Circuit breaker having separate restrained and unrestrained zone selective interlock setting capability
10/15/2009DE102008018619A1 Switch on current limiting method for transformer, involves immediately disconnecting connection of electrical line at transformer, and enabling connection of line after elapsing set shut-off duration of less than preset milliseconds
10/15/2009CA2662230A1 Method of setting a ground fault trip function for a trip unit and a trip unit having a defined trip function for ground fault protection
10/14/2009EP2109202A2 Multifunctional residential circuit breaker
10/14/2009EP2109122A1 Spool component for use in a crowbar switch
10/14/2009EP2018694B1 Detecting faults in power systems
10/14/2009CN201327993Y Over-voltage trigger for electric leakage circuit breaker
10/14/2009CN201327992Y Residual current operated circuit breaker with high sensitivity
10/14/2009CN201327991Y Remote supply and communication anti-interference protection device
10/14/2009CN201327990Y Reclosure starting system of ultra-high voltage transmission line
10/14/2009CN201327917Y Switching-off and tripping socket
10/14/2009CN101558542A A method and an apparatus for protecting a bus in a three-phase electrical power system
10/14/2009CN101557278A Method for security-oriented transmission, security switch device and control unit
10/14/2009CN101557094A Disconnection auto-action or alarm circuit of external residual current transformer
10/14/2009CN101557093A Small voltaic arc large current DC switch
10/14/2009CN101557092A Protection circuit and circuit protection method
10/14/2009CN101557091A Short circuit protection circuit
10/14/2009CN101556494A Method, circuit and device for resetting electronic system
10/14/2009CN100550562C Method for detecting earth-fault conditions in motor controller
10/14/2009CN100550556C Truelike detection method and equipment of transformer and electric switch facility
10/14/2009CN100550555C A high-voltage battery system and secure protection method
10/14/2009CN100550554C Three or four pole low-voltage power switch provided with rogowski coils
10/14/2009CN100549713C Insulation monitoring system
10/13/2009US7603584 Method and apparatus of recording data in the optical recording medium
10/13/2009US7603327 System and method for managing object based clusters
10/13/2009US7602083 Apparatus and method for powering load center circuits with an auxiliary power source
10/08/2009WO2009121799A1 Protection device
10/08/2009WO2009121770A1 Protection device
10/08/2009WO2009121518A1 Adjusting device having an anti-trap protection and offset in the start-up phase
10/08/2009WO2009121382A1 Method and arrangement for generating an error signal
10/08/2009US20090251841 Incorporating electrostatic protection into miniature connectors
10/08/2009US20090251840 Quarter wave stub surge suppressor with coupled pins
10/08/2009US20090251837 System and Method for Information Handling System Display Backlight Protection and Monitoring
10/08/2009US20090251836 Circuit breaker meter
10/08/2009US20090251835 Safety switch device
10/08/2009US20090251833 Electrostatic discharge protection device for high speed transmission lines
10/08/2009US20090251832 Over heating detection and interrupter circuit
10/08/2009US20090251010 Power conversion circuit for reducing power loss and electronic device having such power conversion circuit
10/08/2009DE202009007389U1 FI-Auslöseschutz für Überspannungen RCD tripping protection for overvoltage
10/08/2009DE102008017499A1 Fehlerstrom-Schutzschalter-Vorrichtung Residual current circuit breaker device
10/08/2009CA2719516A1 Three-phase faulted circuit indicator
10/07/2009EP2107662A2 Residual current circuit breaker device
10/07/2009EP2083278A9 Method and apparatus for determining location of phase-to-phase fault
10/07/2009CN201323444Y Improved control circuit of recloser
10/07/2009CN201323437Y Cut-off device for trolley wires
10/07/2009CN201323436Y Multifunctional three-phase protector
10/07/2009CN201323435Y Multifunctional single-phase protector
10/07/2009CN201323434Y Control circuit for protecting low-voltage electromotor of driven rotary machine against self-starting accidents
10/07/2009CN201323336Y Novel computer socket
10/07/2009CN201322972Y Electrical fire monitoring device based on fire-fighting alarming linkage bus
10/07/2009CN101552467A Method for supplying power for high-power server equipment
10/07/2009CN101552461A Method for protecting power distribution network containing distributed generation
10/07/2009CN101552458A Protective circuit of a control and protection switch
10/07/2009CN101552457A Power supply anomaly protection method, device and base station
10/07/2009CN101552452A Short-circuit protection circuit for switching power supply of frequency converter
10/07/2009CN101552451A Switch power supply cycle-by-cycle wave over-voltage protection circuit
10/07/2009CN101552450A Pure simulation circuit for realizing undervoltage instantaneous release
10/07/2009CN101552412A Novel electric leakage protecting socket
10/07/2009CN101551938A Voltage-current transformation method
10/07/2009CN101550906A DC electric machine variable pitch system and control method thereof
10/07/2009CN100547872C Method for obtaining fault signal of distribution circuit
1 ... 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 ... 331