| 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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| 01/26/2000 | CN2361020Y Safety protector for using electricity |
| 01/25/2000 | US6018451 Circuit breaker trip unit and method for real-time fault indication |
| 01/19/2000 | EP0973239A2 Protective circuit |
| 01/19/2000 | CN2359827Y Induction type short-circuit-proof protector |
| 01/19/2000 | CN1241849A Method for determining propagation delays and method for determining processor-clock drift in communications system |
| 01/13/2000 | WO2000002298A2 Electromagnetic relay |
| 01/13/2000 | DE19833984A1 Schutzschalteinrichtung Protection switching device |
| 01/13/2000 | DE19832599A1 Elektronischer Überstromauslöser mit einer analogen Umgehungsschaltung Electronic trip with an analog bypass circuit |
| 01/13/2000 | DE19832591A1 Leistungsschalter mit einer Einrichtung zur Verarbeitung eines Stromsignales Circuit-breaker with means for processing a current signal |
| 01/13/2000 | DE19830643A1 Arcing protection arrangement protecting low voltage networks against arcing enables detection of arcing and initiates measures to provide warning or switch off appropriate circuits |
| 01/12/2000 | EP0971471A2 Improvements in or relating to parallel-feeder directional overcurrent protection |
| 01/12/2000 | EP0971470A2 Circuit breaker with a device for processing a current signal |
| 01/12/2000 | EP0971469A2 Electronic overcurrent tripping relay with an analog bypass circuit |
| 01/12/2000 | EP0970840A2 Protection device against voltage kickback of permanently excited electrical drive |
| 01/12/2000 | EP0970555A1 Electronic fuse |
| 01/12/2000 | CN1241012A Electrical switchgear with synchronous control system and actuator |
| 01/12/2000 | CN1048364C Overvoltage cut-off circuit with special switchboard branch line direct through communication line |
| 01/12/2000 | CN1048363C Three-phase AC Voltage protector |
| 01/11/2000 | US6014305 ESD event detector |
| 01/11/2000 | US6014303 Overcurrent preventing device |
| 01/11/2000 | US6014299 Device and method for protecting a CPU from being damaged by an overrating voltage or overrating current |
| 01/11/2000 | US6014297 Apparatus for detecting arcing faults and ground faults in multiwire branch electric power circuits |
| 01/11/2000 | CA2191005C Miswiring indicator in ground fault protection devices |
| 01/10/2000 | CA2267490A1 Single pole arc fault circuit interrupter with miswire detection |
| 01/06/2000 | WO2000001050A1 A device for protecting an object against fault related over-currents |
| 01/06/2000 | WO2000001049A1 Method for operating an electronic overcurrent trip for a power circuit breaker |
| 01/05/2000 | EP0969579A2 Electronic overcurrent tripping relay and method of operating same |
| 01/05/2000 | EP0968884A2 Power supplying apparatus for vehicle and intensive wiring apparatus |
| 01/05/2000 | EP0968871A2 Power-feed control apparatus provided in a vehicle |
| 01/05/2000 | EP0968558A1 Programmable fuse and programming device for timer |
| 01/05/2000 | EP0968460A1 Clock line over-current protector and industrial control system |
| 01/05/2000 | CN2357428Y Three-phase over-voltage protector |
| 01/04/2000 | US6011682 No-zap low-cost lightning protection |
| 01/04/2000 | US6011680 Connector, in particular a plug-in connector for TT and TN networks |
| 01/04/2000 | US6011679 Methods and apparatus for controlling a power supply with improved techniques for providing protection limits |
| 01/04/2000 | US6011480 Protection quality capability for protective relays used in an electric power system |
| 01/04/2000 | US6011416 Switch circuit having excess-current detection function |
| 12/30/1999 | DE19830016A1 Electronic over-current release operating method for power switch |
| 12/30/1999 | DE19828057A1 Unit monitoring continuous voltage supply to SRAM in vehicle controller |
| 12/29/1999 | WO1999067867A1 A protection device and method |
| 12/29/1999 | WO1999067865A1 A switching device |
| 12/29/1999 | WO1999067864A1 A protection device |
| 12/29/1999 | WO1999067861A1 Temperature controlled circuit interrupter |
| 12/29/1999 | WO1999067857A1 A switching device |
| 12/29/1999 | EP0966781A1 Circuit interrupter having improved current sensing apparatus |
| 12/29/1999 | CN1047888C Process for regulating automatic door operated by drive motor |
| 12/29/1999 | CN1047887C Device for differentially protecting power transformer |
| 12/29/1999 | CN1047886C Differential protection device sensitive to pulsating current |
| 12/29/1999 | CN1047885C Mine lighting transformer protective method and device |
| 12/28/1999 | US6008973 Circuit breaker including interface to convert a rectified signal to a sinusoidal signal |
| 12/28/1999 | US6008971 Fault protection arrangement for electric power distribution systems |
| 12/28/1999 | CA2141263C Electromagnetic and radio frequency interference suppression for ground fault circuit interrupters |
| 12/28/1999 | CA2034389C Stall protection circuit for an electronically commutated motor |
| 12/23/1999 | WO1999066618A1 A protection device and method |
| 12/23/1999 | DE19826906A1 Determining cos phi from amplitude ratio of apparent power |
| 12/22/1999 | EP0966087A2 Overvoltage protection circuit |
| 12/22/1999 | EP0966086A2 Integrated protection circuit, method of providing current-limiting and short-circuit protection and converter employing the same |
| 12/22/1999 | EP0966085A1 Control device for the cut-off of a motorised shading device |
| 12/22/1999 | EP0966084A1 Method for controlling the triggering of a safety device in a high voltage generator and high voltage generator using such method |
| 12/22/1999 | CN2355485Y Multifunctional three phase protection electronic switch |
| 12/22/1999 | CN2355484Y Protector for electric leakage ard electric shock |
| 12/22/1999 | CN2355426Y Device for prevention of electric charge evasion |
| 12/21/1999 | US6005760 Combination current sensor and relay |
| 12/21/1999 | US6005759 Method and system for monitoring and controlling an electrical distribution network |
| 12/21/1999 | US6005758 Communication terminal for electrical power line distribution system |
| 12/21/1999 | US6005757 Electrical switching device or trip unit acquiring predetermined settings from another electrical switching device or trip unit |
| 12/21/1999 | US6005393 Method of determining an earth-fault current |
| 12/18/1999 | CA2275222A1 Procedure for controlling safe triggering means in a high voltage generator and high voltage generator using such a procedure |
| 12/18/1999 | CA2275065A1 Improvements in or relating to parallel-feeder directional overcurrent protection |
| 12/15/1999 | EP0783787B1 Power cut-off device |
| 12/15/1999 | CN2354282Y Displaying type domestic zero power-off leakage breaker |
| 12/15/1999 | CN1047482C Automatic electronic air-switch |
| 12/15/1999 | CN1047481C Three-phase overcurrent protection circuit |
| 12/14/1999 | US6002602 Switching power source with power outage detection signal |
| 12/14/1999 | US6002566 Resettable overcurrent protective circuit |
| 12/14/1999 | US6002565 Fault current safety switch |
| 12/14/1999 | US6002564 Overcurrent protection thick-film resistor device and overcurrent protection circuit using the same |
| 12/14/1999 | US6002563 Plug-in power module incorporating ground-fault detection and reporting |
| 12/14/1999 | US6002561 Arcing fault detection module |
| 12/09/1999 | WO1999063636A1 Protective relay with modular control panel |
| 12/09/1999 | WO1999063635A1 Redundant communications in a protective relay |
| 12/09/1999 | CA2297975A1 Protective relay with modular control panel |
| 12/08/1999 | EP0963043A2 Circuit and method for protecting from overcurrent conditions and detecting an open electrical load |
| 12/08/1999 | EP0963025A2 Faulted feeder detection in earth fault in electricity distribution network |
| 12/08/1999 | EP0963024A1 Protective switching device |
| 12/08/1999 | EP0963023A2 Arc fault detector comparing integrated interval to interval filtered load current and circuit breaker incorporating same |
| 12/08/1999 | EP0962903A1 Safety system for suspending the supply of gas when a leak is detected |
| 12/08/1999 | EP0961959A1 Voltage regulator circuit |
| 12/08/1999 | CN2353075Y Safety electric power distribution box |
| 12/08/1999 | CN2353074Y Multi-function electronic arrangement for preventing screw-off or phase interruption and for limiting current |
| 12/08/1999 | CN2353073Y Full automatic emergency protective arrangement for electric power supply |
| 12/07/1999 | US5999388 Method and apparatus for limiting current in a direct voltage network of a power transmission system |
| 12/07/1999 | US5999384 Circuit interrupter with arcing fault protection and PTC (positive temperature coefficient resistivity) elements for short circuit and overload protection |
| 12/04/1999 | CA2234327A1 Continuity circuit checker |
| 12/02/1999 | WO1999062159A1 Electronic tripping device for a circuit breaker |
| 12/02/1999 | DE19825384A1 Elektronische Auslöseeinheit für einen Leistungsschalter The electronic trip unit for a circuit breaker |
| 12/02/1999 | DE19824269A1 Schutzschaltungsanordnung zum Auftrennen eines Gleichstromkreises Protection circuitry for separating a DC circuit |
| 12/02/1999 | DE19822748A1 Arrangement for protection against inverse connection of DC supply voltage in vehicle |
| 12/02/1999 | CA2265204A1 Combination ground fault and arc fault circuit interrupter |
| 12/01/1999 | EP0961381A2 Power window switch device |