| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
|---|
| 11/27/1979 | US4176386 Overcurrent relay |
| 11/20/1979 | US4175255 Device to protect against flow of current |
| 09/25/1979 | CA1063227A1 Protective relay circuits |
| 08/07/1979 | CA1060087A1 Two pole ground fault circuit interrupter with improved rectified supply and transient suppression for a trip circuit |
| 07/31/1979 | US4163268 Circuit arrangement for monitoring readiness for operation of actuating devices of a safety apparatus for vehicles |
| 07/31/1979 | US4163227 Apparatus for monitoring arcing of brushes in a dynamoelectric machine |
| 07/31/1979 | US4163119 Protective circuit for electroacoustic transducer with hall element and voice coil temperature rise time constant circuit |
| 07/17/1979 | US4161651 Simultaneously sampled remote data reading and transmission system using optical fibers |
| 07/10/1979 | CA1058291A1 Protective relay device |
| 06/05/1979 | US4157513 Protective system for power stage of monolithic circuitry |
| 05/22/1979 | US4156262 Overload-protection circuit for electric motors |
| 05/22/1979 | CA1055142A1 Zener diode effect long acceleration module |
| 05/08/1979 | US4153924 Inrush current restraint circuit for alternating power system switch |
| 05/08/1979 | US4153923 Ground monitoring system and method |
| 05/01/1979 | US4152744 Solid state tripping circuit |
| 04/17/1979 | US4150412 Filter excitation circuitry |
| 03/20/1979 | CA1051092A1 Indicating apparatus |
| 03/13/1979 | US4144551 Power interrupter device for an electrical distribution system |
| 03/07/1979 | EP0001003A2 Apparatus and method for operating a dynamo-eletric machine |
| 02/13/1979 | US4139878 Apparatus for sensing a high phase signal from a multi-phase AC load circuit |
| 02/06/1979 | US4138707 Ground fault protective systems with predetection neutralization of reactive currents |
| 01/16/1979 | US4135223 Electronic protection circuit |
| 12/26/1978 | US4131929 Bridge circuits for sensing currents in a three-phase A.C. circuit |
| 12/19/1978 | US4130850 High speed fault diverter switch for gas-insulated systems |
| 10/10/1978 | CA1040269A1 Ground integrity monitor for electrical apparatus |
| 09/19/1978 | US4115828 Arc detection and control apparatus |
| 09/05/1978 | US4112476 Ground fault protection system |
| 08/15/1978 | US4106498 Initialization circuit |
| 08/15/1978 | CA1036663A1 Current sensitive circuit protection system |
| 08/01/1978 | US4104691 Circuit breaker apparatus including asymmetrical fault detector |
| 05/30/1978 | US4092691 Protective relay arrangements |
| 05/30/1978 | US4092582 Electrical coupling arrangements |
| 05/09/1978 | US4089033 High speed bus differential relay |
| 04/11/1978 | US4084232 Power confidence system |
| 03/21/1978 | US4080642 Power system safety monitor |
| 02/21/1978 | US4075675 Ground conductor monitoring system and method |
| 01/31/1978 | US4071875 Detector apparatus |
| 01/31/1978 | US4071873 Apparatus for detecting abnormal conditions of transmitted signals |
| 01/31/1978 | US4071871 Motor protector circuit |
| 01/03/1978 | US4067052 Process for detecting electrical faults |
| 12/20/1977 | US4064454 Corona discharge detecting device |
| 12/13/1977 | US4063302 Protection arrangement for an inverter |
| 12/13/1977 | US4063300 Protective relay arrangements |
| 11/29/1977 | US4060843 Protection circuit for multiple phase power systems |
| 11/01/1977 | US4056839 Protective relay devices |
| 11/01/1977 | US4056838 In-band signal-to-noise ratio monitor for an FSK relaying system |
| 10/18/1977 | US4054934 Solid state inverse overcurrent relay |
| 10/18/1977 | US4054932 Over-current protective apparatus for a power circuit |
| 10/11/1977 | US4053815 Ground fault interrupters |
| 09/13/1977 | US4048663 Solid state overload relay transformer circuit |
| 08/16/1977 | US4042964 Motor protection circuit |
| 07/12/1977 | US4035612 Circuit for detecting trouble in electric lines connecting relatively movable circuits |
| 07/05/1977 | US4034269 Protective relay circuits |
| 07/05/1977 | US4034267 Indicating apparatus |
| 05/17/1977 | US4024435 Ground fault protective systems with variable rate integration of fault signals |
| 05/03/1977 | US4021702 Arrangement for detecting deficient operational capability of vacuum switching vessels |
| 03/29/1977 | US4015206 Protective relaying modem receiver |
| 03/29/1977 | US4015169 Two pole ground fault circuit interrupter with improved rectified supply and transient suppression for a trip circuit |
| 02/08/1977 | US4007401 Current sensitive circuit protection system |
| 01/11/1977 | US4002950 Power transmission control system |
| 01/11/1977 | US4002948 Long delay acceleration module for an overload relay system |
| 12/07/1976 | US3996499 Zener diode effect on long acceleration module |
| 12/07/1976 | US3996496 Ground integrity monitor for electrical apparatus |
| 10/05/1976 | US3984737 Protective relaying system |
| 09/07/1976 | US3979255 Method for operating a system with a variable excursion margin setpoint |
| 08/31/1976 | US3978374 Method and apparatus for the detection of short circuits |
| 08/24/1976 | US3976920 Filtering arrangement for relay protection devices |
| 08/24/1976 | US3976918 False triggering protection for ground fault sensor |
| 08/24/1976 | US3976917 Protection device for a power plant to prevent overloading in the event of short circuits |
| 07/20/1976 | US3970932 Hot line detection system for high voltage switchgear |
| 07/20/1976 | US3970915 Fault detector and interrupt circuit useful in a television signal processing system |
| 06/29/1976 | US3967189 Power supply for electronic circuits at high-voltage potential |
| 06/22/1976 | US3965394 Apparatus for protecting a multiphase power transmission line from intermembral faults |
| 06/08/1976 | US3962646 Squelch circuit for a digital system |
| 05/25/1976 | US3959695 Circuit interrupter with ground fault trip control |
| 05/25/1976 | US3959694 Electrical circuit protection apparatus |
| 05/11/1976 | US3956671 Protection device for objects included in electrical power supply networks |
| 02/24/1976 | US3940663 Drive circuit for a main contactor |
| 02/10/1976 | US3938007 Electrical network protection device with automatic switch over between protection criteria |
| 01/13/1976 | US3932791 Multi-range, high-speed A.C. over-current protection means including a static switch |