| 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) |
|---|
| 09/14/1993 | US5245498 Downed conductor automatic detecting device |
| 09/14/1993 | US5245496 Self-programming non-invasive motor overload prevention system |
| 09/07/1993 | US5243489 Protection circuit for multiple phase power system |
| 09/07/1993 | US5243488 Protection circuit limiting overvoltages between two selected limits and its monolithic integration |
| 09/02/1993 | WO1993017479A1 Fault-current protective switch |
| 09/01/1993 | CN2141639Y Electronic transformer for neon lamp |
| 09/01/1993 | CN2141614Y Silicon controllable single-phase automatic power limiter |
| 09/01/1993 | CN2141609Y Electricity leakage protecting plug |
| 09/01/1993 | CN1022008C Circuit breaker with over-temp. protection and low error calculator |
| 08/31/1993 | US5241444 Adaptive trip fault current indicator |
| 08/31/1993 | CA1321822C Circuit breaker warning relay and control accessory |
| 08/31/1993 | CA1321821C Circuit breaker with removable display and keypad |
| 08/31/1993 | CA1321820C Digital circuit interrupter with selectable trip parameters |
| 08/26/1993 | DE4239609A1 Monitoring circuit for devices sensing direction of movement |
| 08/26/1993 | DE4205208A1 Fehlerstromschutzschalter Residual current circuit breakers |
| 08/25/1993 | EP0556191A1 Servomotor-control circuit. |
| 08/25/1993 | CN2141129Y Automatic safety leakage-protective plug |
| 08/25/1993 | CN2141124Y Protective electrical appliance with multi-functional tripping circuit |
| 08/24/1993 | US5239439 Protection circuit for power supply systems |
| 08/24/1993 | US5239438 Fault current protective device |
| 08/24/1993 | US5239253 Portable engine generator |
| 08/24/1993 | CA1321619C Electrode line protection |
| 08/19/1993 | WO1993016517A1 Method and device for preventing overstabilization of longitudinal differential protection in case of internal fault |
| 08/18/1993 | CN2140575Y Telecommunication appliance protector |
| 08/18/1993 | CN2140570Y 多功能安全插座 Versatile safety sockets |
| 08/17/1993 | US5237480 Interrupting power |
| 08/10/1993 | US5235505 Overcurrent detector |
| 08/05/1993 | WO1993015542A1 Overvoltage and overload current attenuator |
| 08/05/1993 | WO1993015539A1 Device for providing electric power from a signal transmitter |
| 08/05/1993 | DE4203467A1 Monitor for single earth faults on insulated electric traction system - has artificial earth point and bridge connected detector circuit with fault indication via independent DC source |
| 08/05/1993 | DE4203299A1 Insulation monitor for intermediate voltage stage of frequency changer e.g. for mining equipment - uses balanced intermediate voltage reference for comparison with threshold and automatic disconnection under fault |
| 08/04/1993 | CN2139747Y New type comprehensive device for domestic electric appliances |
| 07/28/1993 | EP0552273A1 Circuit protection arrangement. |
| 07/28/1993 | EP0552265A1 Overcurrent protection device. |
| 07/27/1993 | US5231565 Electrical distribution system having mappable control inputs |
| 07/27/1993 | US5231309 Current leakage breaking circuit for a copying apparatus |
| 07/21/1993 | EP0552002A1 A breaker apparatus for connection between a power line and an external circuit, and a method of operation thereof |
| 07/21/1993 | CN2138851Y Multifunctional protector |
| 07/21/1993 | CN1074567A Driver capable of protecting semiconductor switch |
| 07/21/1993 | CN1074561A A breaker apparatus for connection between a power line and an external circuit, and a method of operation thereof |
| 07/21/1993 | CN1074560A Control-break and power-supply circuit and application thereof |
| 07/20/1993 | US5229907 Device for protection against overvoltages of integrated electronic circuits, particularly for applications in the motor car field |
| 07/20/1993 | US5229712 Circuit and method for producing a flexible reference voltage |
| 07/20/1993 | US5229651 Method and apparatus for line power monitoring for uninterruptible power supplies |
| 07/20/1993 | US5229579 Motor vehicle heated seat control |
| 07/20/1993 | CA1320561C Loss-of-potential supervision for a distance relay |
| 07/20/1993 | CA1320560C Circuit breaker with over-temperature protection and low error i_t calculator |
| 07/14/1993 | EP0276296B1 Current-limiting circuit |
| 07/14/1993 | CN2138359Y Time dividing and electric supply limiting monitor |
| 07/14/1993 | CN2138358Y Automatic monophase leakage protector |
| 07/14/1993 | CN2138357Y Multifunctional energy saving controller of refrigerator |
| 07/14/1993 | CN2138356Y Multifunctional cut-off protector |
| 07/14/1993 | CN2138355Y Current limiting protector for sensing signals on load resistance |
| 07/07/1993 | EP0451154A4 High voltage power supply control system |
| 07/07/1993 | CN2137832Y Three-phase load protection controlling device |
| 07/07/1993 | CN2137831Y Telecontrol fully-automatic protection device for switch-off of domestic electric appliance |
| 07/07/1993 | CN2137830Y Multifunction load regulating and controlling safety device for use of electricity |
| 07/07/1993 | CN1074075A Full-function protection system for electronic ballast |
| 07/07/1993 | CN1074042A Measuring current and voltage with zero sequence mutual inductor measuring unbalance current method |
| 07/07/1993 | CN1021530C Solid-state trip unit for dc circuit breakers |
| 06/30/1993 | EP0548324A1 Electrical distribution system having mappable control inputs |
| 06/30/1993 | CN2137406Y Multifunctional protector for electricity supply |
| 06/30/1993 | CN2137401Y Power-saving safety socket |
| 06/29/1993 | US5224011 Multifunction protective relay system |
| 06/29/1993 | US5224010 Power supply supervisor with independent power-up delays and a system incorporating the same |
| 06/29/1993 | US5224007 Current window detection circuit |
| 06/29/1993 | US5224006 Electronic circuit breaker with protection against sputtering arc faults and ground faults |
| 06/29/1993 | US5223795 Method and apparatus for detecting arcing in electrical connections by monitoring high frequency noise |
| 06/24/1993 | WO1993012436A1 Fault indicator for power lines |
| 06/24/1993 | CA2085416A1 Low voltage inhibiting circuit for a microcomputer |
| 06/23/1993 | CN2137045Y Automatic protecting magnetic starter for phase-defect |
| 06/23/1993 | CN2137044Y Electrical leakage protector for blowing machine |
| 06/23/1993 | CN2137043Y Overcurrent protection apparatus for electric circuit of internal combustion equipment |
| 06/23/1993 | CN2137038Y Plug with electrical leakage protector |
| 06/23/1993 | CN1073554A Self-hold controller for quantitative electric supply during predefined period |
| 06/23/1993 | CN1073553A Intelligent controller for electric consumption |
| 06/23/1993 | CN1073528A Secret card type watt-hour meter |
| 06/23/1993 | CN1073368A Electric potential treating instrument |
| 06/23/1993 | CN1021388C Multipolar earthing leakage switch comprised of standard fittings |
| 06/19/1993 | WO1993012566A1 Remotely programmable electronic trip system |
| 06/19/1993 | CA2101849A1 Remotely programmable electronic trip system |
| 06/17/1993 | DE4140556A1 Earth leakage protection unit for Three=phase current mains - carries out angular measurement between displaced voltage occurring at star point of 3 phase current mains and reference voltage and has fault signal producer |
| 06/16/1993 | EP0546963A1 In-series protection circuit |
| 06/16/1993 | CN2136542Y Multifunctional self-restoring fuse cut-out |
| 06/15/1993 | US5220494 Protection circuit and method for variable speed drives utilizing phase controlled converters |
| 06/15/1993 | US5220479 Electronic trip device whose front panel is formed by a flat screen display |
| 06/15/1993 | US5220478 Apparatus for displaying thermal condition of motor controller |
| 06/15/1993 | US5220311 Direction indicating fault indicators |
| 06/10/1993 | WO1993011608A1 Power switch |
| 06/10/1993 | WO1993011593A1 Arrangement for the off-mains switching of control devices |
| 06/09/1993 | EP0484341A4 A power supply |
| 06/09/1993 | EP0483165A4 A ground fault circuit interrupter having loss of neutral or loss of ground protection |
| 06/09/1993 | EP0483164A4 A ground fault circuit interrupter |
| 06/09/1993 | EP0480937A4 Loss of neutral or ground protection circuit |
| 06/09/1993 | CN2135860Y Low-voltage leakage selecting protector under coal mine well |
| 06/09/1993 | CN2135855Y Snap separating type electric leakage protector |
| 06/09/1993 | CN2135854Y Solid state phase-lose protective relay |
| 06/09/1993 | CN2135845Y Full switching off and over voltage protective power socket for remote electric appliance |
| 06/09/1993 | CN2135844Y Energy-saving safety plug for colour tv |
| 06/08/1993 | US5218282 Automatic door operator including electronic travel detection |