| 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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| 06/17/2004 | US20040117077 Electrical system for a ship |
| 06/17/2004 | US20040114400 Method and apparatus for overload-controlling inverter power generation apparatus |
| 06/17/2004 | US20040113592 Method of and apparatus for detecting sensor loss in a generator control system |
| 06/17/2004 | DE10252754A1 Elektromotor mit einer Vorrichtung zur Temperaturüberwachung Electric motor with a device for monitoring the temperature |
| 06/16/2004 | CN1505862A Protection of electrical power lines |
| 06/16/2004 | CN1505861A Jamming protection device for moving member |
| 06/16/2004 | CN1504759A Method and apparatus of detecting internal motor faults in an induction machine |
| 06/16/2004 | CN1154219C Earthing protection method for stator of power generator |
| 06/15/2004 | US6751080 Control circuit for semiconductor device with overheat protecting function |
| 06/15/2004 | US6750576 Permanent magnet induced electric machine and method for operating such a machine |
| 06/10/2004 | WO2004049553A1 Controller of ac generator for vehicle |
| 06/10/2004 | WO2004049535A1 Protective switch |
| 06/10/2004 | US20040109274 Battery pack having a protection circuit |
| 06/10/2004 | US20040109272 Power converter with polarity reversal and inrush current protection circuit |
| 06/10/2004 | US20040109268 Limiting circuit for a brushless dc motor |
| 06/10/2004 | US20040109267 Method and apparatus of detecting internal motor faults in an induction machine |
| 06/09/2004 | EP1427082A2 Method and apparatus of detecting internal motor faults in an induction machine |
| 06/09/2004 | EP1426988A2 Solid electrolytic capacitors |
| 06/09/2004 | DE20320319U1 Electrical/electronic transformer for converting supply voltage to load voltages has temperature-controlled device preventing overheating by reducing converter power if secondary side short-circuited |
| 06/09/2004 | DE10255168A1 Schutzschalter Circuit breaker |
| 06/09/2004 | CN2620413Y Portable electronic apparatus with charger function |
| 06/09/2004 | CN1503361A Electrostatic discharge protective element for high voltage input pad |
| 06/09/2004 | CN1153325C Charging and discharging control circuit |
| 06/08/2004 | US6748163 Electric heater with dual overheat limits |
| 06/08/2004 | US6747300 H-bridge drive utilizing a pair of high and low side MOSFETs in a common insulation housing |
| 06/03/2004 | WO2004047137A1 Auxiliary release device for motor protection switches |
| 06/03/2004 | US20040105664 Linear electric motor controller and system for providing linear speed control |
| 06/03/2004 | US20040105284 Method and apparatus for current limiting of an output of a DC-to-DC converter |
| 06/03/2004 | US20040105197 Solid electrolytic capacitors |
| 06/03/2004 | US20040104701 Jamming protection device for moving member |
| 06/03/2004 | DE10355270A1 Verfahren zum Schützen und zur Fehlererfassung für einen Anlasser/eine Lichtmaschine, der/die in einer Anlasserbetriebsart arbeitet A method for protecting and error detection for a starter / a dynamo, the / who works in a starter mode |
| 06/03/2004 | DE10254295A1 Permanent magnet machine rotor or magnet temperature monitoring procedure calculates temperature from no load voltage and remanence function |
| 06/03/2004 | DE10254038A1 Hilfsauslöser für Motorschutzschalter Auxiliary releases for motor protection switch |
| 06/03/2004 | DE10253864A1 Star connected stator virtual earth connection monitoring procedure for electrical machines uses difference processing with optimized digital filter of null voltage and coil current measurements |
| 06/03/2004 | DE10251977A1 Synchronmotor Synchronous motor |
| 06/02/2004 | CN1502158A Electrical system for a ship |
| 06/02/2004 | CN1501562A Circuit for implementing online AC input high-voltage protection |
| 06/02/2004 | CN1501092A Satellite connection earthing method and apparatus for monitoring stators |
| 06/01/2004 | US6744609 Motor control circuit having motor protective circuit |
| 06/01/2004 | US6744231 Movable barrier operator |
| 05/27/2004 | WO2004045049A1 Electric motor comprising a temperature monitoring device |
| 05/27/2004 | WO2004045036A1 Fault detection apparatus and method |
| 05/27/2004 | US20040100740 Switched-mode power supply |
| 05/27/2004 | US20040100216 Current limitation process of brush and brushless DC motors during severe voltage changes |
| 05/27/2004 | DE202004004693U1 Machine e.g. machine tool driven by at least one three-phase current motor, includes rotary field monitor and phase drop-out detector with restart protection |
| 05/26/2004 | EP1422802A2 A method of and apparatus for detecting sensor loss in a generator control system |
| 05/26/2004 | EP1422090A1 Power window driving device |
| 05/26/2004 | EP1421671A1 Method and apparatus for controlling power supplied to a motor |
| 05/26/2004 | EP1262007B1 Permanent magnet induced electric machine and method for operating such a machine |
| 05/26/2004 | EP1249060B1 Method for protecting an electrical motor against thermal overload |
| 05/26/2004 | CN2618345Y Three-phase AC electric motor phase failure protector |
| 05/26/2004 | CN1499704A Switching mains |
| 05/26/2004 | CN1499688A Motor protector |
| 05/26/2004 | CN1499559A Combination block of motor protector for compressor |
| 05/25/2004 | US6741943 Crossover fault classification for power lines with parallel circuits |
| 05/25/2004 | US6741916 Accident point locating system |
| 05/25/2004 | US6741437 Safety device for electrical storage cell battery and battery equipped with the device |
| 05/25/2004 | CA2204212C Load actuation circuit with a surge protecting function |
| 05/21/2004 | WO2004042905A1 Power converter |
| 05/21/2004 | WO2004042885A1 Intelligent power system |
| 05/21/2004 | WO2004042884A1 Method for controlling an electrical machine and a system for carrying out said method |
| 05/20/2004 | US20040095694 Fault condition protection |
| 05/20/2004 | US20040095023 Intelligent power system |
| 05/19/2004 | EP1419572A1 Device and method for monitoring the connection of an electrical supply unit |
| 05/19/2004 | EP1145264A4 Silicon equivalent ptc circuit |
| 05/19/2004 | EP1142077B1 Safety device associated with a sliding panel powered by an electric motor and method using same |
| 05/19/2004 | EP1016481B1 Control device for boring machine |
| 05/19/2004 | EP0901698B1 Ground fault protection circuit for a multiple source system |
| 05/19/2004 | DE10251095A1 Electric machine operating method for motor vehicle, by determining reliable torque from desired torque and detecting deviation of instantaneous torque from reliable torque |
| 05/19/2004 | DE10059142B4 Strombegrenzungsapparat Current limiting apparatus |
| 05/19/2004 | CN2617081Y Electronic trigger with temperature protection |
| 05/19/2004 | CN2617067Y Multifunctional maintenance free vehicular battery microcomputerised controller |
| 05/19/2004 | CN1498448A Aircraft applicable ground fault circuit interrupter |
| 05/19/2004 | CN1497829A Power supply capable of protecting circuit of electric apparatus |
| 05/19/2004 | CN1497717A Circuit device and its manufacturing method |
| 05/19/2004 | CN1497259A Direct earth detector and system connecting generating device using it |
| 05/18/2004 | US6738719 Crossover fault classification for power lines with parallel circuits |
| 05/18/2004 | US6738246 Electrical circuit breaker for protecting against overcurrents |
| 05/18/2004 | US6738245 Series-pass over-voltage protection circuit having multiple transistors in parallel |
| 05/18/2004 | US6738241 Fireguard circuit |
| 05/18/2004 | US6737869 Fault locator and selectivity sensor |
| 05/18/2004 | US6737821 Barrier operator with fault control |
| 05/13/2004 | WO2004040733A1 Differential protection for synchronous machines |
| 05/13/2004 | WO2004040732A1 Earth fault protection for synchronous machines |
| 05/13/2004 | WO2004040731A1 Method and apparatus for control of an electric power system in response to circuit abnormalities |
| 05/13/2004 | WO2004040529A2 Bus total overcurrent system for a protective relay |
| 05/13/2004 | US20040090910 Multi-terminal differential protection system |
| 05/13/2004 | US20040090805 Switching power supply apparatus |
| 05/13/2004 | US20040090725 Protection of an electric power transmission network |
| 05/13/2004 | US20040090724 Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
| 05/13/2004 | US20040090213 Current modulation of direct current transmission lines |
| 05/13/2004 | DE10249568A1 Fault analysis method for electronic control device for electric motor determines conduction resistance of each switch element of electronic control device for comparison with expected value |
| 05/13/2004 | DE10014072B4 Sicherheitsgerät für motorbetriebene Fenster Safety device for motorized window |
| 05/12/2004 | EP1418664A2 Synchronmotor |
| 05/12/2004 | CN2615942Y Electric voltage protective circuit for AC/DC power source |
| 05/12/2004 | CN2615941Y Intelligent multifunction AC motor monitoring protector |
| 05/12/2004 | CN2615940Y Three-phase air pump electric protector |
| 05/12/2004 | CN1495433A System and method for detecting open-phase of compressor system |
| 05/12/2004 | CN1149736C Electronic circuit with wide dynamic range of on/off delay time |
| 05/12/2004 | CN1149461C Power saving circuit of power factor adjusting type |