| Patents for H02H 1 - Details of emergency protective circuit arrangements (5,580) |
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| 09/02/1986 | CA1210847A1 Electronic relay of arc detection |
| 08/27/1986 | CN85109150A Transmission lines protective systems |
| 08/19/1986 | US4607309 Apparatus for detecting arcing faults on low-voltage spot networks |
| 07/29/1986 | US4603367 Power supply for overcurrent circuit trip system |
| 07/08/1986 | CA1207425A1 Residual differential device equipped with a surveillance system for the electronic power supply |
| 05/27/1986 | US4591940 Signal quality monitor for protective relay system |
| 05/20/1986 | US4590547 Active full-wave rectifier detector circuit |
| 03/25/1986 | US4578732 Ground fault circuit interrupter including snap-acting contacts |
| 03/19/1986 | EP0174905A1 High-voltage gas-insulated metal-clad installation divided into gas-tight compartments by means of partitioning lead-through insulators |
| 03/18/1986 | US4577279 Fault locating device |
| 03/05/1986 | EP0173083A1 Protective control method |
| 01/28/1986 | US4567540 Power supply for a circuit interrupter |
| 01/15/1986 | EP0167884A2 DC supply unit with overcurrent protection |
| 12/31/1985 | US4562506 Distribution line powered switchgear control |
| 12/24/1985 | US4561120 Protective relaying system |
| 10/02/1985 | EP0156727A1 Device for the supervision of an electrical voltage being subject to unintentional, momentary interruptions |
| 09/25/1985 | EP0155429A1 Circuit arrangement for the supervision of a voltage |
| 09/18/1985 | EP0154760A1 Circuit arrangement for the supervision of a current |
| 09/03/1985 | US4539618 Digitally controlled overload relay |
| 08/27/1985 | US4538194 Ground fault desensitization circuit for electronic breaker |
| 08/20/1985 | CA1192295A1 Device for controlling the tripping/reset cycle of a circuit breaker |
| 08/06/1985 | US4533888 Magnetic circuit control apparatus |
| 08/06/1985 | US4533865 Circuit arrangement for identifying and storing power line faults |
| 08/06/1985 | CA1191547A1 Test system for waveguide arc detector circuits |
| 07/30/1985 | US4532571 Circuit breaker |
| 07/24/1985 | EP0149372A1 Differential leakage device equipped with a device for monitoring the power supply of the electronic circuit |
| 06/18/1985 | US4524446 Signal quality monitor for protective relay system |
| 06/11/1985 | US4523248 Safety circuit for a detachable connecting cable |
| 05/21/1985 | CA1187556A1 Method of protection of electrical networks in the event of power swinging by means of a swing arrester and a swing arrester for the performance of the method |
| 05/14/1985 | US4517619 Protective relay system for a power system |
| 05/08/1985 | EP0140418A1 Active double-sided rectifier circuit |
| 05/07/1985 | US4516183 Overcurrent relay |
| 05/07/1985 | US4516022 Detection of light-producing events |
| 04/16/1985 | US4511839 Method and a system for analyzing the secondary current in a current transformer, the primary side of which is connected into a line of an electric energy supply network |
| 04/16/1985 | CA1185651A1 Ground isolation monitoring apparatus having a protective circuit |
| 04/03/1985 | EP0136254A1 Power supply unit for an overcurrent trip unit |
| 04/03/1985 | EP0135795A1 Switching device for the detection of fault arcs in electrical installations |
| 03/19/1985 | US4506259 Digital fault monitor for conductive heaters |
| 02/26/1985 | US4502033 Circuit control device |
| 02/26/1985 | CA1183252A1 Ground fault circuit interrupting device with improved integrated circuit power supply |
| 02/26/1985 | CA1183251A1 Ground fault circuit interrupting device with improved coordination of electronic circuit operation |
| 02/13/1985 | EP0133128A1 Overcurrent protection device |
| 01/09/1985 | EP0130254A1 Power supply for a circuit interrupter |
| 01/02/1985 | CA1180379A Automatic fault protection system for power recovery control |
| 01/01/1985 | US4491892 Electronic current overload protection installation |
| 11/28/1984 | EP0126270A1 Device for the optical detection of a fault arc in an encapsulated high voltage switch gear |
| 11/20/1984 | US4484165 Circuit control device |
| 10/16/1984 | US4477855 Protecting system for transmission lines |
| 10/02/1984 | US4475094 Circuit control device |
| 09/19/1984 | EP0119042A1 Protective relay system |
| 09/04/1984 | CA1173905A1 Fault anticipation apparatus for high voltage electrical equipment |
| 08/22/1984 | EP0116105A1 Domestic power line breaker |
| 08/14/1984 | US4466071 High impedance fault detection apparatus and method |
| 08/01/1984 | EP0114292A1 Three-phase power supply unit |
| 07/31/1984 | US4463401 Interface circuit apparatus |
| 07/24/1984 | US4461571 Test system for wave guide arc detector circuits |
| 06/26/1984 | US4456871 Power supply for electronic control system |
| 06/19/1984 | CA1169535A1 Circuit interrupter with digital trip unit and automatic reset |
| 06/05/1984 | CA1168746A1 Overcurrent relay circuit |
| 05/01/1984 | US4446501 Circuit control system |
| 05/01/1984 | US4446500 Remote control circuit breaker circuit |
| 05/01/1984 | US4446426 On-line RF arc monitor for large rotating generators |
| 04/25/1984 | EP0106045A1 Earth leakage circuit breaker |
| 04/18/1984 | EP0105816A1 Device for automatically grounding structures accidentally being under tension |
| 03/28/1984 | EP0103921A1 High voltage equipment with registration of unwanted light |
| 03/20/1984 | CA1164081A1 Ground fault circuit interrupting device with improved thyristor triggering |
| 02/08/1984 | EP0100173A1 Monitor for signal quality in a protective relay system |
| 02/07/1984 | US4430683 Ground fault detecting device for use with a DC circuit |
| 01/25/1984 | EP0099233A2 Circuit control device |
| 01/24/1984 | US4428022 Circuit interrupter with digital trip unit and automatic reset |
| 01/24/1984 | US4428019 Ground fault circuit interrupting device with improved integrated circuit power supply |
| 01/24/1984 | US4428017 For monitoring the current flow in an electrical load |
| 01/17/1984 | US4426670 Method of protection of electrical networks in the event of power transients by means of a surge arrester and a surge arrester for the performance of the method |
| 01/10/1984 | US4425596 Electric circuit breaker |
| 12/28/1983 | EP0096915A1 Power supply system comprising an a.c. voltage supply source, a load and a connecting cable between the source and the load |
| 12/13/1983 | US4420805 Protective relaying system |
| 12/06/1983 | CA1158300A1 Computer-controlled switching device |
| 11/23/1983 | EP0094871A1 Electronic arc detection relay |
| 11/16/1983 | EP0093802A1 Test system for waveguide arc detector circuits |
| 11/02/1983 | EP0092620A1 Protective relay |
| 10/19/1983 | EP0036417B1 Cut off device monitored by a computer |
| 10/05/1983 | EP0090095A1 Method and device for evaluating the secondary current of a current transformer primary connected to an electric power supply line |
| 09/27/1983 | CA1154527A1 Circuit interrupter with digital trip unit and power supply |
| 09/21/1983 | EP0089048A2 Circuit for detecting and memorising defects in power supply systems |
| 09/06/1983 | CA1153425A1 Ground monitoring system |
| 08/02/1983 | CA1151279A1 Solid state trip unit for an electrical circuit breaker |
| 07/19/1983 | CA1150389A1 Memory circuit in a relay protection device |
| 07/12/1983 | US4393431 Overcurrent relay circuit |
| 07/12/1983 | CA1149923A1 Circuit interrupter with digital trip unit and optically-coupled data input/output system |
| 06/14/1983 | CA1148246A1 Earth leakage current breaker |
| 05/31/1983 | CA1147440A1 Current monitoring control for electrically powered devices |
| 05/24/1983 | US4385271 Fault monitoring by detecting a polarity difference |
| 05/11/1983 | EP0078534A1 Device for controlling a disconnecting and reclosing cycle of a circuit breaker |
| 05/10/1983 | CA1146251A1 Time delayed undervoltage relay |
| 05/03/1983 | CA1145837A1 Ground fault trip mode network for static trip circuit breakers |
| 04/19/1983 | US4380785 Solid state trip unit for an electrical circuit breaker |
| 04/06/1983 | EP0075656A1 Electronic overcurrent protective device |
| 03/29/1983 | US4378507 Emergency power shutdown system for educational laboratory |
| 03/08/1983 | US4376243 Arc detector for electric rod furnace |
| 03/01/1983 | US4375660 Ground isolation monitoring apparatus having a protective circuit |