Patents
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)
08/2000
08/08/2000US6101073 Ground fault protecting apparatus and method for solar power generation and solar power generation apparatus using the apparatus and method
08/08/2000US6100607 Safety method and device for full-voltage power supply to a user apparatus only when required, and control assembly comprising such a safety device
08/02/2000EP1023755A1 Protective device, especially for protection against lightning
08/02/2000EP1023649A1 Method and circuit for monitoring the operating condition of electric motors
08/02/2000CN1261733A Earthing protective method and device for low voltage distribution system
08/02/2000CN1261672A Fault detection of electric line
08/02/2000CN1261671A Fault locator using positive phase, sequence electricity quantity
08/02/2000CN1261651A Protector for refrigerating compressor and protecting method for refrigerating compressor
08/01/2000US6097580 GFCI ground fault current filtering
08/01/2000US6097280 Fault locator that uses positive-phase-sequence electricity
08/01/2000US6097246 Current limiting breaking device using electromagnetic repulsion coil
08/01/2000US6097192 Method for initializing short time and groundfault protection heat index accumulators in a trip unit
08/01/2000US6097166 Movable barrier having force and position learning capability
08/01/2000US6097107 Short prevention control apparatus of air conditioner for electric vehicles
07/2000
07/27/2000WO2000044078A1 Circuit breaker
07/27/2000WO2000043227A1 Method and device for operating an adjusting drive in a motor vehicle
07/27/2000DE10002360A1 Error localizer for executing troubleshooting at parallel transmission line has error localizing unit that executes troubleshooting according to electrical data synchronous correction processing
07/26/2000EP1022837A2 Surge protector
07/26/2000EP1021816A1 Electronic switch for quick, automatic response to current overloads
07/26/2000EP1021123A1 Dishwasher
07/26/2000EP0980598A4 Electrical plug
07/26/2000CN2389436Y External located protection type transformer
07/26/2000CN2389435Y Multi-purpose apparatus with high function-price ratio
07/26/2000CN1261218A Breaking device for instantaneous overload
07/25/2000US6094365 Power supply device of switching mode with leakage current protection circuit
07/25/2000US6094330 Circuit interrupter having improved current sensing apparatus
07/25/2000US6094329 DI protective switching device
07/25/2000US6094092 Overcurrent detection circuit
07/25/2000US6092355 Control system
07/20/2000DE19901855A1 Operating method for adjustment drive for motor vehicle involves comparing actuating force with limit force and reversing adjustment drive if limit is exceeded
07/19/2000EP1020729A2 Fault detection for power lines
07/19/2000EP1019997A1 Method for monitoring status parameters in a switching mechanism, and corresponding device
07/19/2000CN2388756Y Digital phase and amplitude discriminating leakage protector
07/19/2000CN2388755Y Digital phase and amplitude discriminating leakage protector
07/19/2000CN2388754Y 智能漏电保护器 Intelligent leakage protection
07/19/2000CN1260903A Circuit protection device
07/18/2000US6092219 Method for use of bus parking states to communicate diagnostic information
07/18/2000US6092218 System and method for self-referential accesses in a multiprocessor computer
07/18/2000US6091591 Di protective switching device
07/13/2000WO2000041286A1 Lightning protection systems
07/13/2000DE19901789A1 Directional earth-fault determination method for power supply networks
07/13/2000CA2358292A1 Lightning protection systems
07/12/2000EP1018116A1 Method and apparatus of recording data in the optical recording medium
07/12/2000EP1018027A1 Method for the location of a high-resistance earth fault in a power distribution system on the basis of current measurements
07/12/2000EP0796433B1 Plant parameter detection by monitoring of power spectral densities
07/12/2000CN2387649Y Automatic protective instrument for preventing fraudulent use of electricity
07/12/2000CN2387648Y Phase loss protector for three-phase power source
07/12/2000CN2387647Y Device for preventing fraudulent use of electricity
07/12/2000CN1260081A Electrical plug
07/11/2000US6088244 Switching power supply using a single isolating element to facilitate multiple functions
07/11/2000US6088205 Arc fault detector with circuit interrupter
07/11/2000US6086177 Process for controlling closing movement of closing mechanisms with immediate squeeze protection after activation of a mechanism
07/06/2000WO2000039905A1 Intelligent power distribution network
07/06/2000WO2000039904A1 Method for event analysis at an intelligent electronic device
07/06/2000WO2000039822A1 Method of detecting manual trips in an intelligent electronic device
07/06/2000WO2000039715A2 Method of statistical analysis in an intelligent electronic device
07/06/2000WO2000014456A8 Control system for bathers
07/05/2000EP1017173A2 Power supply control device and method of controlling the same
07/05/2000EP1016101A1 Winding in transformer or inductor
07/05/2000CN2386563Y Switch flashy flow overcurrent and short-circuit protector
07/05/2000CN2386562Y Portable electronic device capable of testing battery cover state and taking protection measure
07/05/2000CN2386553Y Electromagnetic short-circuit protecition switch socket
07/05/2000CN2386552Y Power-supply socket with high sensitivity leakage and overvoltage protection
07/04/2000US6084758 Power distribution system with circuit breakers remotely resettable by signals transmitted over the power lines
07/04/2000US6084756 Apparatus for testing protection of an electric power distribution circuit by an arc fault circuit breaker
07/04/2000US6084755 Protective relay-based monitoring system of DC power within an electric power substation
07/04/2000US6084207 Method and apparatus for using direct current to detect ground faults in a shielded heater wire
06/2000
06/29/2000WO2000038292A1 An electric device
06/29/2000DE19860721A1 Operating method for three-point converter of electric rail vehicle drives
06/28/2000EP1014643A2 Network interface unit
06/28/2000EP1014530A2 Electrical power distribution installation for electrical power system
06/28/2000EP1014527A2 Fault protection system for a respiratory conduit heater element
06/28/2000EP1014526A2 Method in connection with protective relay and protective relay
06/28/2000EP1014413A2 Electronic driving circuit for a bistable actuator
06/28/2000EP1012940A1 Circuit protection arrangements
06/28/2000EP1012616A1 Method and configuration for testing digital protection devices
06/28/2000CN2385456Y Overvoltage lightning protector for domestic electrical equipment and power supply line
06/28/2000CN2385455Y Simple earth leakage protector
06/28/2000CN2385454Y Overload, short circuit, overvoltage, leakage protective switch
06/28/2000CN1258123A Electric power system protection and control system and method, and storage medium for program module
06/22/2000WO2000036624A1 Remote controllable circuit breakers with positive temperature coefficient resistivity (ptc) elements
06/22/2000CA2320251A1 Remote controllable circuit breakers with positive temperature coefficient resistivity (ptc) elements
06/21/2000EP1011186A2 Electric load management circuit
06/21/2000EP1011185A2 Improved fault protection scheme
06/21/2000EP1011183A2 Earth leakage protective circuit arrangement
06/21/2000DE19944680A1 Vorrichtung zur Phasenfehler-Erkennung Apparatus for phase error detection
06/21/2000DE19858929A1 Error signal generation for AC power transmission conductor short-circuit indication
06/21/2000DE19858601A1 Earth leakage circuit breaker comprises current which can only be switched on by solenoid switch if mains voltage is applied and test circuit and current detector unit are supplied with sufficient current by voltage supply
06/21/2000DE19857739A1 Fehlerstromschutzschaltungsanordnung Fault protection circuitry
06/21/2000CN2384354Y Overvoltage and overcurrent protection circuit for connector circuit of subscribers line of telephone exchanger
06/21/2000CN2384353Y Universal relay for line protection
06/21/2000CN1257335A Fault protector
06/21/2000CN1257334A Intelligent controller for communicable plastics casing circuit breaker
06/20/2000US6078489 Method for performing instantaneous protection in a trip unit
06/20/2000US6078488 Fault-tolerant analog output circuit
06/20/2000US6078160 Bidirectional DC motor control circuit including overcurrent protection PTC device and relay
06/20/2000US6078108 Apparatus for interrupting the flow of current in a cable
06/20/2000CA2034238C Circuit breaker with rating plug having memory
06/14/2000EP1009084A2 Electrical equipment having energy saving mode capable of shutting off of supplying of voltage to primary power supply supplying circuit under no use thereof
06/14/2000EP1009006A1 Standard control device for an electromagnet for opening or closing a circuit breaker