Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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10/22/1985 | US4549274 Distributed electric power demand control |
10/16/1985 | EP0158576A1 Method and device for controlling the frequency of an electric current |
10/16/1985 | EP0158007A1 Redundant current supply |
10/16/1985 | EP0157860A1 Controllable risk parameter for device control system. |
10/15/1985 | CA1195381A1 Cord sets with power-factor control |
10/10/1985 | CN85200038U Reactive-voltage general control unit by microcomputer |
10/08/1985 | US4546303 Static reactive-power compensation apparatus |
10/08/1985 | US4546301 Circuit and method for controlling an alternating or three-phase current motor |
10/02/1985 | EP0156396A2 Power converter control apparatus and power converter control method |
09/26/1985 | EP0118418A4 Circuit arrangement for compensation of fast changing reactive power, in particular on the point of consumers, which generate harmonics. |
09/25/1985 | EP0155597A1 Device for generating thyristor control pulses to supply an inductance for controlling the reactive power of an electrical network |
09/17/1985 | CA1193656A1 Static var generator |
09/10/1985 | US4540895 Device having thyristors connected in series |
09/10/1985 | US4540889 Method and apparatus for improving the dielectric strength of direct current cable insulation |
09/10/1985 | CA1193351A1 Method and system for interconnecting three-phase synchronous or asynchronous circuits through variable reactive impedances |
09/03/1985 | CA1192984A1 Electrical power supply for the electronic equipments of an acoustic wave long receiver assembly |
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 | EP0152595A1 Control apparatus for D.C. power transmission system |
08/27/1985 | CA1192611A1 Method of static reactive power compensation |
08/21/1985 | EP0152002A1 Phase-shifter |
08/21/1985 | EP0029447B1 Frequency control for ac systems connected in parallel |
08/20/1985 | US4536126 System and method employing a digital computer for automatically synchronizing a gas turbine or other electric power plant generator with a power system |
08/14/1985 | EP0151271A1 HVDC-current coupling station |
08/13/1985 | CA1191896A1 Static var generator for transmission line compensation of subsynchronous resonance |
08/13/1985 | CA1191895A1 Static var generation for transmission line compensation |
08/13/1985 | CA1191891A1 Power conversion equipment |
08/07/1985 | EP0151023A2 Apparatus for controlling power supply to electronic circuitry |
08/06/1985 | US4533857 Electrical energy saving device for motors |
08/06/1985 | US4532761 Load control system and method of combined cycle turbine plants |
07/23/1985 | US4531086 Device for stabilizing the voltage of a single- or multi-phase a-c network |
07/16/1985 | US4529926 Power factor regulating method for connection of a capacitor to a line and apparatus embodying the method |
07/16/1985 | US4529925 Reactive power compensating cycloconverter |
07/16/1985 | CA1190617A1 High power resonance filters |
07/09/1985 | US4528457 DC-AC converter for supplementing an AC power source |
07/03/1985 | EP0146726A1 Method and device for the operation of a HVDC transmission system with advanced phase control of the converters |
07/03/1985 | EP0146725A1 Method and device for starting up a high-voltage direct current transmission system for normal operation |
07/02/1985 | US4527071 Modular power plant for the combined production of electrical and thermal energy and installation comprising a plurality of modular power plants |
06/19/1985 | EP0144556A1 Reactive power compensator for compensating a reactive current component in an AC network |
06/18/1985 | US4524418 Demand estimation apparatus |
06/11/1985 | US4523249 Alternating current limiting apparatus |
06/11/1985 | US4523248 Safety circuit for a detachable connecting cable |
06/04/1985 | US4521840 D-C Bus current monitoring system |
05/28/1985 | US4520274 Method and apparatus for controlling the loads or a plurality of units on a shared source |
05/28/1985 | CA1187964A1 Dumping control method and device for electrical heating installation |
05/22/1985 | EP0142096A2 Method and device for the operation of a high-voltage direct current transmission system with a bypass in case of failure |
05/21/1985 | CA1187555A1 Protective relaying methods and apparatus |
05/15/1985 | EP0141230A1 Three-phase filter circuit plant |
05/14/1985 | US4517634 Power conversion equipment |
05/14/1985 | US4517472 High voltage power supply |
05/14/1985 | US4517468 Diagnostic system and method |
05/07/1985 | US4516198 Control system for DC power transmission |
05/07/1985 | CA1186729A1 Control system for dc power transmission |
04/25/1985 | WO1985001851A1 Controllable risk parameter for device control system |
04/23/1985 | US4513243 Core form transformer for selective cancellation of subsynchronous resonance |
04/23/1985 | US4513240 Method and apparatus for selective cancellation of subsynchronous resonance |
04/23/1985 | CA1186018A1 Control device for a converter |
04/16/1985 | US4511807 Electrical generator control system |
04/16/1985 | US4510756 Plant at a local site operating |
04/16/1985 | CA1185650A1 Overhead electric transmission systems |
04/09/1985 | US4510401 Processes and devices for providing a load with an electric AC supply without discontinuity of the AC signal |
04/09/1985 | US4510398 To maintain a building's power consumption |
04/09/1985 | CA1185317A1 Self generative variable speed induction motor drive |
03/13/1985 | EP0134167A2 High voltage isolation transformer |
03/13/1985 | EP0134145A2 Electrical systems comprising temperature sensitive device |
03/12/1985 | CA1183895A1 System for reducing the rating requirements of static compensator components at hvdc inverter stations |
03/05/1985 | US4503380 Static reactive compensator |
02/28/1985 | WO1985000940A1 Closed loop power factor control for silicon controlled rectifier drilling rigs |
02/19/1985 | US4500795 Electrical timing control switch |
02/12/1985 | US4499385 Recreational vehicle power control system |
02/12/1985 | CA1182518A1 Motor power factor controller with a reduced voltage starter |
01/30/1985 | EP0132266A1 Direct current cable protection system |
01/29/1985 | US4496899 Control for a force commutated current source var generator |
01/22/1985 | CA1181482A2 Polyphase induction generator network with power factor control |
01/15/1985 | US4494179 Control device for a converter |
01/15/1985 | US4494010 Programmable power control apparatus responsive to load variations |
01/08/1985 | US4492874 Synchronization fuel control for gas turbine-driven AC generator by use of maximum and minimum fuel signals |
01/08/1985 | CA1180755A1 Method of operating a high voltage direct current transmission system |
01/02/1985 | EP0130002A2 Electronic grounding system for electrical distribution systems |
01/02/1985 | CA1180419A Load control for energy converters |
01/02/1985 | CA1180417A Load control for energy converters |
12/27/1984 | EP0129492A2 Method and system for interconnecting synchronous or asynchronous three-phase networks by means of variable reative impedances |
12/27/1984 | EP0129287A1 Control system |
12/27/1984 | EP0129250A2 Converter control system |
12/19/1984 | EP0128796A1 Method of controlling the supply of electric motors, and apparatus for carrying out the method |
12/19/1984 | EP0128182A1 Method and apparatus for automatically setting the demand phase lag input to an induction-motor power factor controller. |
12/18/1984 | US4489386 Device control system |
12/18/1984 | US4489243 Solar powered actuator with continuously variable auxiliary power control |
12/12/1984 | EP0127742A1 Power supply |
12/11/1984 | US4488106 Resettable power limiting apparatus |
12/11/1984 | CA1179404A1 Method of and apparatus for controlling loads on an electrical power supply |
12/05/1984 | EP0126882A2 Switchgear equipment for electrical energy distribution, and method to operate the switchgear equipment |
11/21/1984 | EP0125796A1 System and apparatus for monitoring and control of a bulk electric power delivery system |
11/13/1984 | US4482857 Closed loop power factor control for drilling rigs |
11/13/1984 | CA1177879A1 Self-calibrating power factor controller for ac induction motors |
10/30/1984 | US4480219 Phase-to-voltage converter |
10/24/1984 | EP0122445A2 Continuous ship power supply from the propulsion network at alternating current ship drive of a vaiable frequency and partial frequency converter |
10/17/1984 | EP0121696A1 Method and circuit arrangement for controlling an alternating current or a three-phase motor |
10/16/1984 | US4477765 Voltage regulator |
10/16/1984 | US4477733 Temperature dependent duty cycler control system |
10/09/1984 | US4476398 Home demand controller |