| Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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| 04/07/2004 | CN2610510Y Structure for simplifying wiring on binding base |
| 04/07/2004 | CN1488184A Protective equipment for a series-capacitor installation |
| 04/07/2004 | CN1487641A Grounding direction relay system |
| 04/06/2004 | US6717781 Balanced quench protection circuit |
| 04/06/2004 | US6717519 Method and apparatus for detecting failure in solar cell module, and solar cell module |
| 04/01/2004 | WO2004027974A1 System and method for individual phase motor over voltage protection |
| 04/01/2004 | WO2004026634A1 Electric motor circuit with overload protection |
| 04/01/2004 | WO2002061905A9 Aircraft applicable ground fault circuit interrupter |
| 04/01/2004 | US20040064272 Arrangements to detect and respond to disturbances in electrical power systems |
| 04/01/2004 | DE10243970A1 Kraftfahrzeug Motor vehicle |
| 04/01/2004 | DE10243386A1 Elektronischer Zweileiterschalter und zugehörige Spannungsversorgung Electronic two-state switches and associated power supply |
| 04/01/2004 | DE10232208A1 Überlastschutz für einen drehfeldbetriebenen elektrischen Verbraucher Overload protection for a rotating field driven electrical consumer |
| 03/31/2004 | EP1403997A2 Digital protection relay with time sync function |
| 03/31/2004 | EP1403996A2 Overload protection device for electric motors and method for overload protection of electric motors |
| 03/31/2004 | EP1402611A2 Anti-pinch window control system and method |
| 03/31/2004 | CN2609258Y Electric net protector |
| 03/31/2004 | CN2609257Y Protector for three-phase AC motor |
| 03/31/2004 | CN2609256Y Automatic protector for submersible motor |
| 03/31/2004 | CN2609255Y Overvoltage protective circuit for car generator |
| 03/31/2004 | CN2609201Y Automatic telescopic device for car antenna |
| 03/31/2004 | CN1144058C Accident point positioning system |
| 03/31/2004 | CN1143760C Dould-model non-isolation type wired system of moveable wire-less electric tools |
| 03/30/2004 | US6714427 Current modulation of direct current transmission lines |
| 03/30/2004 | US6714395 Method for detecting faults internal to a distribution equipment configuration |
| 03/30/2004 | US6714022 Apparatus and method for cooling power transformers |
| 03/30/2004 | US6714020 Protective and monitoring apparatus for a generator, and use of such a protective and monitoring apparatus |
| 03/30/2004 | US6713980 Apparatus and method for controlling moving member |
| 03/25/2004 | WO2004006406A3 Circuit and method for protecting against overload of an electric motor |
| 03/25/2004 | WO2003103349A3 Motor speed-based anti-pinch control apparatus and method |
| 03/25/2004 | US20040057178 Directional ground relay system |
| 03/25/2004 | US20040057175 Electrical bus protection method & apparatus |
| 03/25/2004 | US20040057171 System and method for individual phase motor over voltage protection |
| 03/25/2004 | US20040057170 System and method for detecting loss of phase in a compressor system |
| 03/25/2004 | US20040057168 Protective equipment for a series-capacitor installation |
| 03/25/2004 | US20040056621 Movable barrier operator |
| 03/25/2004 | US20040056618 Control circuit for brushless DC motor equipped with protective circuit |
| 03/25/2004 | DE19710319B4 Schaltung zum Sperren einer Halbleiterschaltvorrichtung bei Überstrom Circuit for blocking a semiconductor switching device for overcurrent |
| 03/25/2004 | DE10261837A1 Current differential protection for transformer in multi-phase supply network, involves using derived currents to form difference currents for isolated network, and corrected currents for earthed network |
| 03/24/2004 | EP1401076A2 System and method for detecting loss of phase in a compressor system |
| 03/24/2004 | EP1401074A2 Electronic two-wire type switch and power supply therefor |
| 03/24/2004 | EP1400434A2 Electric power steering apparatus |
| 03/24/2004 | EP1310030B1 Method for controlling and adjusting a motor-driven adjusting device |
| 03/24/2004 | EP1247324B1 Exciter and electronic regulator for superconducting rotating machinery |
| 03/24/2004 | CN2607688Y Anti-theft storage battery controller |
| 03/24/2004 | CN2607687Y Motor protector |
| 03/24/2004 | CN1484354A Impedancd relay protection device according to phase compensation and method thereof |
| 03/24/2004 | CN1484267A Overload protector for sealing-structure |
| 03/24/2004 | CN1143421C Charging-discharging control circuit and chargnig-type power-supply device |
| 03/24/2004 | CN1143334C Active earth fault turn-off electric detector |
| 03/23/2004 | US6711512 Pole transformer load monitoring system using wireless internet network |
| 03/23/2004 | US6710992 Charge/discharge protection circuit for a rechargeable battery |
| 03/23/2004 | US6710988 Small-sized industrial rated electric motor starter switch unit |
| 03/23/2004 | US6710580 Method and apparatus for overload-controlling inverter power generation apparatus |
| 03/23/2004 | US6710562 Synchronous motor with an electronic control device for adjusting devices in motor vehicles and method for controlling them |
| 03/23/2004 | US6710560 Movable barrier operator |
| 03/23/2004 | US6710558 Electronically commutable motor, in particular, for a liquid pump |
| 03/23/2004 | CA2207707C Apparatus for detecting an insulation defect in a device connected into an electrical power transmission or distribution network and corresponding detection process |
| 03/18/2004 | WO2004008600A3 Electrical network protection system |
| 03/18/2004 | US20040054456 Electric power steering apparatus |
| 03/18/2004 | US20040052023 Vsc-converter |
| 03/18/2004 | DE4242560B4 Vorrichtung zum Erfassen eines Überstroms A device for detecting an overcurrent |
| 03/17/2004 | EP1398861A1 Inverter circuit and its method of operation |
| 03/17/2004 | EP1398804A2 Variable capacitor and method for manufacturing same |
| 03/17/2004 | CN2606978Y Protective circuit for preventing battery group from over discharging |
| 03/16/2004 | US6705420 Steering angle ratio control system and method |
| 03/11/2004 | US20040046529 Appliance for protecting a boat generator and for synchronisation |
| 03/10/2004 | EP1396075A2 Method for closing a motor driven window |
| 03/10/2004 | CN1480972A Variable capacitor element and its mfg. method |
| 03/10/2004 | CN1141771C Battery pack protecting circuit and battery pack contg same |
| 03/10/2004 | CN1141768C Digital travelling wave protection method for powet transmission line and its relay and protection system |
| 03/10/2004 | CN1141767C Earthing protection method for small current earthing system |
| 03/10/2004 | CN1141721C Power distributing transformer-switch combination |
| 03/04/2004 | WO2004019464A1 Electrical network for surface and submarine vessels for example naval ships and for offshore units |
| 03/04/2004 | US20040042136 Motor control device having temperature protection function |
| 03/04/2004 | US20040041681 Overload protector with hermetically sealing structure |
| 03/04/2004 | US20040041547 Device and method for inhibiting power fluctuation |
| 03/04/2004 | DE10237549A1 Elektrisches Netz für Unter- und Überwasserfahrzeuge, z. B. Marineschiffe, sowie für Offshoreanlagen Electrical network for above and below water vehicles, such. As naval vessels, and offshore installations |
| 03/03/2004 | EP1393443A2 Overcurrent detection and protection apparatus for switching element |
| 03/03/2004 | EP1393433A1 Method for determining the rotating position of the drive shaft of a commutated direct current motor |
| 03/03/2004 | CN1479424A Inputting overvoltage protection circuit and electric device with the protection circuit |
| 03/02/2004 | US6700765 High current series-pass over-voltage protection circuit |
| 02/26/2004 | WO2003073221A3 Integrated protection, monitoring and control system |
| 02/26/2004 | WO2003073181A9 Data sample and transmission modules for power distribution systems |
| 02/26/2004 | US20040039537 Arrangements to detect and respond to disturbances in electrical power systems |
| 02/26/2004 | US20040036296 Method of protection and fault detection for starter/alternator operating in the starter mode |
| 02/26/2004 | DE19949783B4 Vorrichtung mit Überstrom-Abschalteinrichtung und Übertemperatur-Abschalteinrichtung Device with overcurrent and overtemperature shutdown system shutdown system |
| 02/25/2004 | EP1086473A4 Surface mounted magnetic components having sheet material windings and a power supply including such components |
| 02/25/2004 | CN2604812Y No-maintenance power source with semi-intelligent discharging function |
| 02/25/2004 | CN2604808Y Overcurrent and short-circuit protector for ringing current generator |
| 02/25/2004 | CN2604807Y Phase-defect protector for three-phase electric machine |
| 02/25/2004 | CN2604769Y AC vacuum contactor with motor protector |
| 02/25/2004 | CN1477753A Automobile electricity-connecting conductor device capable of making automatic detection and switching power polarity |
| 02/25/2004 | CN1477748A D.C. motor rotation-blocking up detection device |
| 02/25/2004 | CN1477746A Anti-current mutual inductor saturated conventional difference current trajectory scanning and discrimination method |
| 02/25/2004 | CN1477745A Anti-current mutual-inductor saturated suddenly-changed quantity difference current dynamic recollecting discrimination method |
| 02/25/2004 | CN1140034C Protective circuit and battery |
| 02/25/2004 | CN1140030C Relay protection method for electric power system with low-voltage distribution circuit and equipment |
| 02/24/2004 | US6697570 Rotary electrical hand-tool device and startup safety routine |
| 02/24/2004 | US6697240 Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection |
| 02/24/2004 | US6696814 Microprocessor for controlling the speed and frequency of a motor shaft in a power tool |