| 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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| 10/15/1986 | CN85205367U Muiltifunctional controller |
| 10/15/1986 | CN85204799U Controller for automatically putting spare apparatus into use |
| 10/08/1986 | CN86100489A Transient voltage protection for toroidal transformer |
| 10/07/1986 | US4616302 Over-current sensing circuit for switching-type power supply |
| 10/01/1986 | EP0196234A2 Gas insulated switchgear |
| 10/01/1986 | CN86102108A Switching device isolated by gas |
| 09/30/1986 | CA1212147A1 Method and device for locating a fault point on a three-phase power transmission line |
| 09/23/1986 | US4613808 Fault detector for an alternator |
| 09/17/1986 | EP0194921A1 Electrical motor equipped with a thermistor overcurrent protective device |
| 09/17/1986 | EP0194892A2 Protected refrigerator compressor motor systems |
| 09/17/1986 | CN85108028A Circuit of checking abnormality for inverted amplifier |
| 09/10/1986 | EP0193723A1 Current supervision for a switching regulator |
| 09/09/1986 | CA1211199A1 Overcurrent protection device |
| 09/09/1986 | CA1211152A1 Apparatus for bonding and protecting electrical cable shields |
| 09/02/1986 | US4609983 Apparatus for determining active and/or reactive current and/or the power thereof in an inverter with a given input d-c voltage, especially in a pulsed inverter |
| 08/28/1986 | WO1986005040A1 Inverter shoot-through protection circuit |
| 08/27/1986 | EP0192540A1 Chopper supply protected against very strong overintensities |
| 08/27/1986 | EP0192120A2 Data transmission process and device for remote control |
| 08/27/1986 | CN85109150A Transmission lines protective systems |
| 08/26/1986 | US4608637 Control device for driving road-vehicle electric-powered equipment |
| 08/26/1986 | US4608626 Electrical inverter with minority pole current limiting |
| 08/26/1986 | CA1210453A1 Apparatus for detecting ground fault in variable- voltage variable-frequency power system |
| 08/20/1986 | EP0191571A1 Alternator regulator protection circuit |
| 08/20/1986 | CN85109713A Load state detecting apparatus of an induction motor |
| 08/13/1986 | EP0190930A2 Transient voltage protection for toroidal transformer |
| 08/13/1986 | EP0190401A2 Safety device for an electromotive driven tool |
| 08/13/1986 | EP0052630B1 Field coil fault detector for automotive alternator battery charging systems |
| 08/13/1986 | CN85100985A Dynamo step out protector |
| 08/13/1986 | CN85100969A Protector for power supply interruption and step out of a.c.electric machine |
| 08/06/1986 | EP0189537A1 Motor device |
| 08/05/1986 | US4604674 Reclosing relay apparatus |
| 08/05/1986 | US4604673 Distribution transformer with surge protection device |
| 08/05/1986 | CA1209206A1 Voltage regulator for charging generator |
| 07/30/1986 | EP0189037A1 Static VAR compensator |
| 07/30/1986 | EP0188733A1 Compact resistor assembly |
| 07/30/1986 | CN85100977A Technical improvement for eliminating magnetism of generator and protection from overvoltage of rotation |
| 07/29/1986 | CA1208700A1 Method for detecting a fault or also the direction of a fault in electric lines and means for executing this method |
| 07/23/1986 | CN85108840A Current monitoring for switching regulator |
| 07/22/1986 | CA1208348A1 Ultra-high-speed relay |
| 07/22/1986 | CA1208337A1 Vacuum monitor for vacuum interrupter |
| 07/17/1986 | WO1986004190A1 Re-regulation circuit for automobile tachometer detection circuit |
| 07/17/1986 | WO1986004188A1 Transistor inverter interlock circuit |
| 07/17/1986 | WO1986004187A1 Generating system with fault detection |
| 07/17/1986 | WO1986004119A1 Pump control apparatus and method |
| 07/16/1986 | EP0187455A2 Electrical apparatus |
| 07/16/1986 | EP0187312A1 Filter circuit |
| 07/16/1986 | CN85202537U Device with automatic leaking warning and shutoff oil for oil-filled cable |
| 07/15/1986 | US4600917 Gate-turn-off thyristor failure detecting circuit |
| 07/09/1986 | CN85203626U 3-way circuit breaker for temperature adjusting, fireproof, electric shock protection |
| 07/08/1986 | US4599556 Method for detecting a disturbance along a conductor in an electricity-distribution system of the grid type |
| 07/08/1986 | US4599504 Induction heating apparatus with protection against power interruption |
| 07/08/1986 | CA1207386A1 Balancing device for series connected switches |
| 07/03/1986 | WO1986003897A1 Device for checking semiconductor rectifiers connected in series |
| 07/02/1986 | EP0186333A1 Method and apparatus for detecting surge in centrifugal compressors driven by electric motors |
| 07/02/1986 | EP0186282A1 Apparatus for driving a vehicle window |
| 07/02/1986 | CN85108175A Method of protecting motor from overload according to the ageloss |
| 07/02/1986 | CA1207022A Current supply apparatus for an a.c. consumer |
| 07/02/1986 | CA1207020A Electric motor fault and dynamic braking protection system |
| 06/25/1986 | EP0185449A1 Control apparatus for a vehicle window motor |
| 06/17/1986 | US4595965 Apparatus and method for detecting a rotating rectifier fault |
| 06/17/1986 | US4595861 Defining a capacitive load |
| 06/17/1986 | CA1206200A1 False recovery detection circuit for parallel or serial strings of thyristors |
| 06/10/1986 | US4594636 Reactive load drive and surge protection |
| 06/10/1986 | US4594634 High-voltage direct-current supply with over-current protection |
| 06/10/1986 | US4594632 Overvoltage protection circuit for synchronous machinerotor |
| 06/10/1986 | US4594631 Temperature protective circuit for a charging generator |
| 06/10/1986 | CN85107983A Apparatus for detecting position of internal fault of gas insulated bus |
| 06/05/1986 | WO1986003348A1 Circuit breaker for automatically breaking faulty section |
| 06/05/1986 | WO1986003249A1 Control and drive arrangement for movable members |
| 06/05/1986 | EP0141819A4 Short-protected buffer circuit. |
| 06/04/1986 | EP0183108A1 Electric short circuit monitoring device for speed-controlled three phase current motors, including their leads |
| 06/03/1986 | CA1205516A1 Short circuit protection apparatus |
| 05/28/1986 | EP0182204A1 Inverter with a bridge of electronic switches |
| 05/27/1986 | US4591773 Motor driving circuit for motor actuator |
| 05/27/1986 | CA1205133A1 Voltage controlled current switch with short circuit protection |
| 05/21/1986 | EP0181575A1 Superconducting coil device |
| 05/20/1986 | US4590533 Overvoltage protective relay device |
| 05/20/1986 | CA1204820A1 Diode failure detecting device in rotary rectifier |
| 05/20/1986 | CA1204818A1 Fold-back power supply |
| 05/14/1986 | EP0180955A1 Digital distance relay |
| 05/13/1986 | US4589051 Second breakdown protection circuit for X-ray generator inverter |
| 05/13/1986 | US4589050 Method and apparatus for the protection of a thyristor power conversion system |
| 05/13/1986 | US4589046 Apparatus for detecting ground fault in variable-voltage variable-frequency power system |
| 05/09/1986 | WO1986002773A1 Electrical components incorporating a temperature responsive device |
| 05/07/1986 | EP0180453A2 Pump monitor for photoactivation patient treatment system |
| 05/07/1986 | CN85203580U Family electrical appliance safety device |
| 05/06/1986 | CA1204151A1 Inverter power transistor protection |
| 04/30/1986 | EP0179262A1 Protection method and circuit |
| 04/29/1986 | US4585981 Device for driving motor-operated closure parts |
| 04/23/1986 | EP0178852A1 Electronic ballast circuit for fluorescent lamps |
| 04/22/1986 | US4584515 Re-regulation circuit for automobile tachometer detection circuit |
| 04/16/1986 | EP0178043A1 Power supply for electroluminescent panels |
| 04/16/1986 | EP0177652A2 Motor protector particularly suited for use with compressor motors |
| 04/15/1986 | US4581900 Method and apparatus for detecting surge in centrifugal compressors driven by electric motors |
| 04/15/1986 | CA1203281A1 Detector for shorted rotating diode |
| 04/10/1986 | CN85103168A Device prerenting a.c.contactor from contact metal welding, phase fault and noise |
| 04/09/1986 | EP0177323A2 On-load tap changing device |
| 04/09/1986 | EP0176766A2 A power converter for a motor control system |
| 04/09/1986 | EP0176708A1 Temperature protection circuit with hysteresis |
| 04/08/1986 | US4581711 Monitoring system for motors |