| 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) |
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| 01/07/1986 | US4563733 Startup circuit for a switched power supply |
| 01/07/1986 | US4563719 Ballasts with built-in ground-fault protection |
| 01/07/1986 | CA1199098A1 Sectionaliser |
| 01/02/1986 | EP0166125A1 Electronic switching device, preferably operating without making contact |
| 01/01/1986 | CN85200741U Multiple-protection contactor for three-phase electric motor |
| 12/31/1985 | US4562507 Protective relay |
| 12/31/1985 | US4562506 Distribution line powered switchgear control |
| 12/31/1985 | US4561691 Safety device for electromechanical opening and closing mechanism |
| 12/31/1985 | CA1198799A1 Computer-controlled switching apparatus |
| 12/27/1985 | EP0165864A1 Protection circuit for an electric motor with variable speed |
| 12/27/1985 | EP0165803A2 A system and an apparatus for locating a grounding fault on electric power equipment |
| 12/24/1985 | US4561120 Protective relaying system |
| 12/24/1985 | US4560922 Method for determining the direction of the origin of a disturbance affecting an element of an electrical energy transfer network |
| 12/20/1985 | CN85200585U Apparatus for autormatically protecting refrigerator from damage caused by short time power cutting |
| 12/18/1985 | EP0164711A2 Method for detection and location of a fault point on a power transmission line and device for carrying out the method |
| 12/18/1985 | EP0164407A1 Shock hazard protection system. |
| 12/17/1985 | CA1198201A1 Protective relay apparatus |
| 12/10/1985 | US4558309 Ground tether continuity monitor |
| 12/10/1985 | US4558226 Voltage detecting circuit with hysteresis characteristic and high noise immunity |
| 12/03/1985 | US4556946 Ground detection arrangement for A.C. generator |
| 12/03/1985 | US4556874 Fusible circuit breaker |
| 12/03/1985 | US4556842 Tracking filter for sensing DC content in an AC waveform |
| 11/27/1985 | EP0162185A1 Digital protective relay monitoring system |
| 11/19/1985 | US4554607 Fuse loss indicating circuit |
| 11/12/1985 | US4553188 Sectionalizer |
| 11/12/1985 | US4553187 Overcurrent detection device |
| 11/10/1985 | CN85200444U Relay compound type apparatus for protecting pull-out of synchronous motor |
| 11/10/1985 | CN85200443U Safety alarm for winding of closed compressors |
| 11/10/1985 | CN85200442U Relay compound type apparatus for protecting pull-out of synchronous motor in power interruption |
| 11/06/1985 | EP0160235A1 Supervision device for the tripping circuit of an electrical power circuit breaker, and supervision method |
| 11/05/1985 | US4551811 Ground detection arrangement for an A.C. generator |
| 11/05/1985 | US4550728 Epilator |
| 11/05/1985 | CA1196382A1 Current sensing circuit for motor controls |
| 10/30/1985 | EP0159557A2 Overvoltage arrester with a separating device and blinking signalisation |
| 10/29/1985 | US4550360 Circuit breaker static trip unit having automatic circuit trimming |
| 10/16/1985 | EP0157881A1 Current detecting circuit |
| 10/15/1985 | US4547726 Means and method for measuring power system frequency |
| 10/15/1985 | US4547720 Induction motor start-stall detection apparatus and method |
| 10/15/1985 | US4547715 Current control circuit |
| 10/10/1985 | CN85200061U Overvoltage protecting unit |
| 10/09/1985 | EP0157054A1 Residual current circuit breaker |
| 10/08/1985 | US4546401 Two-pole overcurrent protection device |
| 10/02/1985 | EP0156727A1 Device for the supervision of an electrical voltage being subject to unintentional, momentary interruptions |
| 10/01/1985 | US4544980 Domestic power line breaker |
| 10/01/1985 | CA1194549A1 Method and device for finding faults on electric lines by the principle of low impedance |
| 09/25/1985 | EP0155429A1 Circuit arrangement for the supervision of a voltage |
| 09/25/1985 | EP0155408A1 Differential-type protective relay |
| 09/25/1985 | EP0155367A1 Short-circuit distance relay |
| 09/24/1985 | US4543570 For detecting occurrence of combustion in a thermal deburring apparatus |
| 09/24/1985 | CA1194203A1 Fault responsive protective device |
| 09/24/1985 | CA1194201A1 Microprocessor based recloser control |
| 09/18/1985 | EP0155076A1 Circuit breakers for direct and alternating current |
| 09/18/1985 | EP0154760A1 Circuit arrangement for the supervision of a current |
| 09/17/1985 | US4542468 Ground detection arrangement for an A.C. generator |
| 09/17/1985 | US4542433 Unbalance protection apparatus for a multiple transmission line |
| 09/17/1985 | US4542432 Ground fault detection circuit |
| 09/17/1985 | CA1193639A1 Electric blanket safety circuit |
| 09/11/1985 | EP0154450A1 Earth leakage protective circuit |
| 09/10/1985 | US4541058 Protective relay system |
| 09/10/1985 | US4541030 Protective electric house-wiring switch |
| 09/10/1985 | US4540939 Apparatus for monitoring current levels in an a.c. transmission line |
| 09/04/1985 | EP0153614A2 Process and device for determining the positive and negative phase sequence components of current in an unbalanced 3-phase system |
| 08/28/1985 | EP0152739A1 Method for the determination of the instant of the reclosure of a power circuit breaker, and apparatus to carrying out this method |
| 08/28/1985 | EP0152579A1 Device for the short circuit protection of a converter with GTO thyristors |
| 08/27/1985 | US4538197 Synchronism check relay |
| 08/27/1985 | US4538196 Protective relay apparatus and method for providing single-pole tripping |
| 08/27/1985 | US4538195 Three terminal current differential protective relay |
| 08/27/1985 | US4538194 Ground fault desensitization circuit for electronic breaker |
| 08/27/1985 | US4538040 Electrical switch means particularly adapted to GFCI test and reset switches |
| 08/21/1985 | EP0151565A1 Phase relay for ac power transmission line protection. |
| 08/20/1985 | US4536815 Protective relay apparatus and method for providing single-pole tripping |
| 08/20/1985 | CA1192295A1 Device for controlling the tripping/reset cycle of a circuit breaker |
| 08/13/1985 | US4535410 Power supply failure early warning detector |
| 08/13/1985 | US4535409 Microprocessor based recloser control |
| 08/13/1985 | US4535321 Method and system for monitoring faults in electrical circuits |
| 08/13/1985 | CA1191934A1 Molded case switch having improved performance and single-phase protection |
| 08/13/1985 | CA1191904A1 Method of detecting ground faults in a network for distribution of electric power and a device for carrying out the method |
| 08/13/1985 | CA1191903A1 Leakage current detecting structure |
| 08/07/1985 | EP0150911A2 Battery pack with electronic means for limiting current flow for powering an electrical device |
| 08/07/1985 | EP0150814A2 Digital impedance relay |
| 08/06/1985 | US4533888 Magnetic circuit control apparatus |
| 08/06/1985 | CA1191584A1 Remotely controlled valve |
| 07/31/1985 | EP0149749A1 Current threshold detector |
| 07/30/1985 | US4532571 Circuit breaker |
| 07/30/1985 | US4532568 Three-phase leakage protection by electronic control |
| 07/24/1985 | EP0149372A1 Differential leakage device equipped with a device for monitoring the power supply of the electronic circuit |
| 07/24/1985 | EP0149046A2 Control arrangement for circuit breaker |
| 07/16/1985 | US4530027 Power failure protector circuit |
| 07/16/1985 | US4530025 Current ratio-differential relay |
| 07/16/1985 | US4530023 Solid state interrupt circuit |
| 07/16/1985 | US4529929 Method of detecting ground faults in a network for distribution of electric power and a device for carrying out the method |
| 07/10/1985 | EP0147818A2 Electronic circuit for protection of productive systems coupled to a power supply |
| 07/10/1985 | EP0147604A1 Digital protective relay system |
| 07/10/1985 | EP0147509A2 High-speed current limiting circuit breaker |
| 07/10/1985 | EP0038621B1 Communications circuit line protector and method of making the same |
| 07/09/1985 | US4528611 Relay for pilot protection of electrical power lines |
| 07/09/1985 | US4528610 Short circuit fault isolation means for electrical circuit arrangements |
| 07/09/1985 | US4528608 Electronic current interrupter included in a DC distribution system |
| 07/02/1985 | US4527214 Power inverter with overload protection apparatus |
| 06/25/1985 | US4525764 System for disconnecting an electrical power source from a load |