| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 03/24/1992 | US5099348 Display for remote receiver in a utility management system |
| 03/24/1992 | US5099190 Reactive power compensation apparatus |
| 03/24/1992 | US5099186 Integrated motor drive and recharge system |
| 03/24/1992 | US5099145 System disconnection detection circuit for a distributed location power source |
| 03/19/1992 | WO1992004757A1 Energy saving device |
| 03/17/1992 | US5097249 Power status detecting apparatus |
| 03/11/1992 | CN2098758U Voltage-reducing autostarter with internal compensation of power factor |
| 03/05/1992 | WO1992003773A1 Process for symmetrical load distribution in power supply units connected in parallel on the output side |
| 03/04/1992 | EP0473256A2 Control system for a current source converter supplying an ac bus |
| 03/03/1992 | US5093630 Overvoltage protection in series thyristor string for static var compensator |
| 02/27/1992 | DE4025718A1 Verfahren zur symmetrischen lastverteilung bei ausgangsseitig parallelgeschalteten stromversorgungsgeraeten A method for symmetrical load distribution at the output side parallel power supplies |
| 02/26/1992 | EP0472294A1 Power pack |
| 02/25/1992 | US5091839 Method and apparatus for supplying voltage to a three-phase voltage system having a load-carrying neutral conductor with a pulse width modulated three phase invertor |
| 02/19/1992 | EP0471178A2 Power Transfer Unit |
| 02/19/1992 | EP0471107A1 Method and device to keep the symmetry of a three-phase system |
| 02/19/1992 | EP0471106A1 Method and device for maintaining three-phase symmetry |
| 02/18/1992 | US5089937 Power interface apparatus for a DC power distribution system |
| 02/18/1992 | CA1296054C Arrangement for connecting plural self-commutated voltage type inverters to autility grid |
| 02/11/1992 | CA1295669C Converter system for coupling two high voltage three-phase networks |
| 02/06/1992 | DE4037531A1 Controlling rectifiers in AC inverter for locomotive traction - forming AC rated value by multiplying regulating signal with sinusoidal signal at frequency of AC actual value |
| 01/28/1992 | US5084812 Arrangement for converting two single-phase alternating currents into a symmetric three-phase current |
| 01/28/1992 | CA1295016C Power factor correction system |
| 01/22/1992 | EP0467374A2 Control circuit for an invertor operable in an individual mode and an interconnection mode |
| 01/22/1992 | CN2094142U Reactive power in-situ compensator for motors |
| 01/21/1992 | US5083039 Variable speed wind turbine |
| 01/15/1992 | EP0466041A2 Energy storage system |
| 01/15/1992 | EP0436627A4 Method and apparatus for controlling a power converter |
| 01/15/1992 | CN1057929A Automatic balance device for three phase current leakage |
| 01/14/1992 | US5081591 Optimizing reactive power distribution in an industrial power network |
| 01/14/1992 | CA1294310C Power control for cooking appliance with transient operating modes |
| 01/09/1992 | WO1992000624A1 A switchboard |
| 01/08/1992 | EP0464423A1 Device for controlling the total energy-consumption of an electricity consumer |
| 01/07/1992 | US5079410 Power control system adaptable to a plurality of supply voltages |
| 01/02/1992 | DE4020294A1 Electrical switch for computer or HI=FI system - provides time delays between outputs by clock-driven shift register |
| 12/31/1991 | US5077517 Voltage fluctuation and higher harmonics suppressor |
| 12/31/1991 | US5077485 Voltage regulator load division using real and reactive generator output power components to control the exciter |
| 12/05/1991 | DE4042377A1 DC electric drive e.g. for traction of vehicle or locomotive |
| 12/03/1991 | CA1292792C Responder unit for energy management system |
| 12/03/1991 | CA1292771C Cogeneration system and method |
| 11/27/1991 | CN1014947B Control apparatus of dc power coupling system |
| 11/27/1991 | CN1014946B Reactive power compensation apparatus with improved gate circuit |
| 11/26/1991 | CA1292512C Method and system for quadrature interconnection of two synchronous or asynchronous three-phase networks |
| 11/26/1991 | CA1292511C Method and compensating device for compensating current oscillations |
| 11/22/1991 | CA2017270A1 Food-processing apparatus |
| 11/21/1991 | EP0456872A1 Food-processing apparatus |
| 11/21/1991 | EP0456728A1 Power supply system. |
| 11/20/1991 | CN2089215U Multifunction reactive power on-site compesator for motor |
| 11/20/1991 | CN1014852B Basic circuit for adjusting the capacitance of a capacitor |
| 11/13/1991 | EP0402362A4 Electrical load shedding circuit |
| 11/13/1991 | CN2088754U Multual-inductor syntony damper in electric net of neutral point without grounding |
| 11/11/1991 | WO1991017492A1 Ac power conditioning circuit |
| 11/06/1991 | CN2088304U Power-economizing automatic controller for use in networks |
| 11/05/1991 | US5063532 Active filter device |
| 10/31/1991 | DE4013506A1 DC-operated drive system - has voltage converter between DC source and DC-AC converter supplying motor |
| 10/30/1991 | CN2087838U Imaginary power compensator |
| 10/30/1991 | CN1014574B Static automatic imaginary power compenastion y-delta converter |
| 10/16/1991 | EP0452049A2 Thyristor switch gate pulse generator |
| 10/16/1991 | CN2086948U Starting compensation control cabinet for low-voltage energy-saving cage motor |
| 10/15/1991 | US5057989 Pwm controlled dc/ac power converter |
| 10/09/1991 | EP0449843A1 Circuit breaker warning relay and control accessory |
| 10/08/1991 | US5055702 Method and apparatus for controlling application of electrical power |
| 10/02/1991 | EP0448571A1 A method for supplying electricity. |
| 10/02/1991 | DE4010122A1 Electrical supply using two auto-transformers - with equal power loading and voltage for load from similar tapping points |
| 10/02/1991 | CN2086014U Reactive site-compensator for high-voltage electric digging machine |
| 10/01/1991 | US5053691 Methods and device for stabilizing an electric supply system through the adaptation of a controller of a static compensating device |
| 10/01/1991 | CA1290014C Ferroresonant three-phase constant ac voltage transformer |
| 09/25/1991 | EP0447392A1 Polyphase power converter with ripple filter choke. |
| 09/25/1991 | CN2085577U Electric power full-automatic reactive smooth compensating complete set of arrangement |
| 09/25/1991 | CN1054858A Arrangement for connecting system |
| 09/24/1991 | US5051685 Waveform corrector |
| 09/24/1991 | US5051684 Three-phase voltage stiff convertor |
| 09/24/1991 | US5051683 Reactive power controller without initial abrupt disturbance on power source |
| 09/22/1991 | WO1991015047A1 Process and device for detecting the load angle of a generator connected to an electric supply network |
| 09/19/1991 | DE4004671C1 Automatically identifying installation configuration - using computer to cover stepped transformers coupled to bus=bars as desired and for regulation |
| 09/18/1991 | EP0446451A2 Method of operating a reactive power regulator |
| 09/17/1991 | CA1289190C Static var compensator |
| 09/04/1991 | EP0444666A2 Interconnection for electric power system |
| 09/04/1991 | CN2084247U Phase controlling type reactive power automatic compensator |
| 08/28/1991 | CN2083803U Intelligent reactive co automatic compensation device |
| 08/21/1991 | EP0442756A1 Electric power utility |
| 08/21/1991 | EP0442455A2 Series capacitor equipment |
| 08/21/1991 | CN1053973A Arrangement for compensating reactive power |
| 08/20/1991 | US5041959 Control system for a current source converter supplying an AC bus |
| 08/14/1991 | EP0440988A1 Three-phase voltage stiff convertor |
| 08/08/1991 | WO1991011841A1 Cycloconvertor equipment |
| 08/08/1991 | DE4101433A1 Building management installation with standby electric power supply - for interconnected subscriber stations not enjoying priority status for emergency supply in event of mains failure |
| 08/07/1991 | EP0439953A2 Apparatus for controlling the reactive impedance of a transmission line |
| 08/06/1991 | US5038265 Power supply with multiple outputs and load balancing |
| 08/06/1991 | US5038095 Control for a DC link power conversion system |
| 07/30/1991 | US5036452 Current sharing control with limited output voltage range for paralleled power converters |
| 07/24/1991 | EP0438059A2 Reactive power compensation apparatus |
| 07/24/1991 | EP0437861A2 Signal processing method and system. |
| 07/23/1991 | CA1286718C Dual generator electrical system |
| 07/23/1991 | CA1286716C Reactive power processing circuit for a current source gto inverter |
| 07/17/1991 | EP0436980A1 Power supply with improved power factor correction |
| 07/17/1991 | EP0436627A1 Method and apparatus for controlling a power converter. |
| 07/17/1991 | CN1053154A Switching power supply apparatus and isolating method thereof |
| 07/17/1991 | CN1053152A Integrated synchronizer |
| 07/17/1991 | CN1053151A Ac current collecting unit of electromechanical integration |
| 07/17/1991 | CN1053150A Electric freq. collecting unit of electromechanical integration |