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) |
---|
06/14/1995 | CN2200820Y Watt-hour meter with anti-steal, anti-leak and anti-touch electric |
06/13/1995 | US5424894 Electrical line-fault detector and circuit breaker device |
06/13/1995 | US5424893 Gas discharge device power supply with ground fault protection |
06/07/1995 | EP0656678A1 Detector device for homopolar faults on an electric energy distribution network |
06/07/1995 | CN2200252Y Protector of motor |
06/07/1995 | CN2200251Y Electrical leakage protector for big three-phase electrical equipment |
06/07/1995 | CN2200250Y Power supply protector for hot-air curtain machine |
06/07/1995 | CN2200249Y Domestic remote control protecting switch |
06/07/1995 | CN2200248Y Automatic protector of low voltage electrifield wire netting controlled by computer |
06/07/1995 | CN2200247Y Tracking type electronic protector |
06/07/1995 | CN2200246Y Electronic safety protecting automatic controller |
06/07/1995 | CN2200245Y Multifunctional protector |
06/07/1995 | CN2200185Y Terminal box for single phase electric energy meter |
06/06/1995 | US5422778 Protection system for controller and control wiring induced under voltage faults in an electric power generating system |
06/06/1995 | US5422551 Safety device and method for power window |
06/02/1995 | CA2136909A1 Electrical power distribution system apparatus-resident personality memory module |
05/31/1995 | EP0655820A1 Ground fault circuit interrupter |
05/31/1995 | EP0655784A1 Triangular protection component |
05/31/1995 | CN2199626Y Multifunctional protector for low-voltage network |
05/31/1995 | CN2199625Y DC over-current relay |
05/30/1995 | US5420740 Ground fault circuit interrupter with immunity to wide band noise |
05/30/1995 | CA2033427C Method and apparatus for detecting stall current in an energized electrical motor |
05/24/1995 | EP0654882A1 Process for monitoring movable elements |
05/24/1995 | DE4339569A1 Voltage monitoring and fault signalling apparatus |
05/24/1995 | DE4333259C1 Verfahren zum Erzeugen eines die Richtung eines Kurzschlußstromes angebenden Richtungssignals A method for generating a direction of a short-circuit current direction indicative signal |
05/24/1995 | CN2198702Y Automatic controller for low voltage electric load |
05/24/1995 | CN2198697Y Excess voltage and excess current protector |
05/24/1995 | CN2198696Y Device for electric drill and lighting in mine |
05/24/1995 | CN2198680Y Household electric appliance safety distribution device |
05/23/1995 | US5418679 Circuit for overriding the cripple mode so that the relay remains latched |
05/23/1995 | US5418678 Manually set ground fault circuit interrupter |
05/17/1995 | EP0653234A1 Liquid filter |
05/17/1995 | EP0653111A1 Reverse-polarity protection by means of a protecting element having a reduced surface. |
05/17/1995 | EP0653110A1 Reverse-polarity protection with reduced element surface. |
05/17/1995 | EP0653073A1 Electric arc detector |
05/17/1995 | CN1102745A Communication line safety device with alarming device |
05/16/1995 | US5416689 Current mode switching power supply overload protection circuit with false fault condition screening |
05/11/1995 | DE4338283A1 Textile machine producing cross-wound bobbins |
05/10/1995 | EP0651921A1 Current limiters in power utility applications |
05/10/1995 | CN2196819Y Power-saving protection device for AC contactor |
05/10/1995 | CN2196792Y Automatic voltage-regulating protector for super-low power-consumption integreted circuit |
05/10/1995 | CN1102514A Bypass-type leading control circuit with extra A.C. power |
05/03/1995 | EP0651488A1 An electrical protection device |
05/03/1995 | EP0650615A1 A fault-tolerant computer system |
05/03/1995 | CN2196329Y Over-current protection plug |
05/03/1995 | CN2196306Y Electricity-stealing-proof single phase watt-hour meter |
05/02/1995 | US5412528 Safety disconnect system |
05/02/1995 | US5412526 Surge arrester circuit and housing therefor |
05/02/1995 | CA2024488C Method and apparatus for line power monitoring for uninterruptible power supplies |
04/26/1995 | EP0649585A1 Switching arrangement for a communications channel |
04/26/1995 | EP0649584A1 Remotely actuated switch and protection circuit |
04/26/1995 | CN2195815Y Pulling safety power-saving switch |
04/19/1995 | EP0649207A1 Self-testing circuit breaker ground fault and sputtering arc trip unit |
04/19/1995 | EP0649206A1 Ground fault circuit interrupter with immunity to wide band noise |
04/19/1995 | CN2195150Y Energy-saving failure memory protector for asynchronous motor |
04/19/1995 | CN2195149Y Solid phase failure protector |
04/19/1995 | CN2195148Y Power supply overvoltage protector for vehicle |
04/19/1995 | CN2195147Y Electronic current overload protection relay for vehicle |
04/11/1995 | US5406438 Apparatus for triggering chemically augmented electrical fuses |
04/11/1995 | US5406437 Zero phase sequence current filter with adjustable impedance |
04/11/1995 | CA2058549C Arc preventing electrostatic power supply |
04/06/1995 | WO1995009469A1 Method of generating a protection-triggering signal |
04/06/1995 | WO1995009467A1 Method and device for identifying single ground faults |
04/06/1995 | WO1995009465A1 Method of generating a signal indicating the direction of a short-circuit |
04/06/1995 | WO1995009464A1 Method of generating fault signals indicating the nature of a fault in an electrical power-supply network to be monitored |
04/06/1995 | WO1995009463A1 Method of generating a fault-indication signal |
04/06/1995 | DE4434705A1 Method and device for monitoring at least two redundant controller channels of an exciter device of an electric generator |
04/05/1995 | EP0647005A1 Parallel and series protection module |
04/05/1995 | EP0596879B1 Process and arrangement for recognizing defects in power converters |
04/05/1995 | EP0483165B1 A ground fault circuit interrupter having loss of neutral or loss of ground protection |
04/04/1995 | US5404083 Energy-efficient cost-effective electronic ballast |
03/30/1995 | WO1995008857A1 Switching installation for distributing electric power protected against arc interference |
03/30/1995 | DE4333156A1 Circuit arrangement for connecting an electronic assembly to an operating voltage |
03/30/1995 | DE4332319A1 Device for reducing interfering radiation and for reducing electrical power losses in electrical networks (power supplies) |
03/29/1995 | EP0645865A2 Surge protection device and system |
03/29/1995 | EP0645029A1 Automatic venting system for a vehicle |
03/29/1995 | CN2193601Y Current leakage protecting socket |
03/28/1995 | US5402299 Coordination arrangment for protective devices in electrical systems |
03/28/1995 | US5402071 Ground fault monitoring device for an electrical power distribution system |
03/23/1995 | DE4344013C1 Electrical circuit arrangement |
03/23/1995 | DE4331992A1 Cell-like switching installation which is protected against internal arcs, for distribution of electrical energy |
03/21/1995 | US5400206 Short circuit and overload protection circuit which allows a predetermined number of reconnection attempts |
03/21/1995 | US5400205 Breaker fail-safe system for a multi-channel electric power generating system |
03/21/1995 | US5400204 System for detecting a breakage of a power cable for an elevator system |
03/21/1995 | US5400202 Electrostatic discharge protection circuit for integrated circuits |
03/21/1995 | US5399974 Fault current filter |
03/21/1995 | US5399950 Automatic venting system for a vehicle with obstruction detection utilizing dynamically modified thresholds |
03/16/1995 | WO1995007571A1 A.c. controller |
03/16/1995 | WO1995007548A1 Current limiting device |
03/16/1995 | DE4330823A1 Antriebsvorrichtung mit einer Sicherheitseinrichtung für den Sonderbetrieb Drive device with a safety device for special operation |
03/16/1995 | CA2171187A1 Ac power controller |
03/15/1995 | CN2192122Y Automatic protector for transformer of neon lamp |
03/15/1995 | CN2192101Y AC static disposition protective switch controller |
03/09/1995 | DE4400657C1 Arrangement for the mains disconnection of a control device |
03/09/1995 | DE4331640C1 Method and device for turning off or reversing a drive arrangement for a motor vehicle part which can be moved |
03/09/1995 | DE4330944A1 Method for predictive current limiting in a solid-state railway current converter |
03/08/1995 | EP0642198A1 Electronic load protecting device |
03/08/1995 | EP0641496A1 Method and device for preventing understabilization of longitudinal differential protection in case of external fault and current transformer saturation. |
03/08/1995 | CN2191495Y AC voltage selector |
03/08/1995 | CN2191487Y 剩余电流动作保护器 Residual current operated protective devices |