| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 06/01/1999 | US5909366 Controller for power transducers |
| 06/01/1999 | US5909105 Control of power networks |
| 06/01/1999 | US5909061 Solar generator for generating direct current power by sunlight and outputting generated power to commercial AC power source |
| 05/27/1999 | WO1999010960A9 Circuit for stabilizing an ac power line |
| 05/26/1999 | CN1217597A Deduction method and apparatus for frequency characteristic of electric power system and use thereof |
| 05/26/1999 | CN1217452A Wall microwave oven and control method for output thereof |
| 05/25/1999 | US5907239 Methods of enhancing capacity of transformer equipment and of power flow control using phase-shifting transformers and series impedances in parallel arrangements |
| 05/25/1999 | US5907234 Thyristor-switched capacitor bank |
| 05/25/1999 | CA2132392C Monitoring and control of a component connected to an electric power network |
| 05/20/1999 | WO1999024771A1 Device and method for controlling the operation of domestic refrigerators and freezers |
| 05/20/1999 | DE19750053A1 Haushaltskühlgerät Household refrigerator |
| 05/19/1999 | EP0917271A2 Compensation for power transfer systems using rotary transformer |
| 05/19/1999 | EP0917270A2 Power flow control and power recovery with rotary transformers |
| 05/19/1999 | CN2319954Y Energy saving protector |
| 05/19/1999 | CN1217096A Modular power management system and method |
| 05/19/1999 | CN1217095A Customer side power management sytsem and method |
| 05/19/1999 | CN1216875A Method for feeding reactive power into AC grid system, as well as inverter for such method |
| 05/18/1999 | US5905643 Method and circuit arrangement for shaping a.c. voltage |
| 05/18/1999 | US5905616 Load selectivity system for use with electronic trip circuit breakers |
| 05/18/1999 | US5905367 Power inverter apparatus using a transformer with its primary winding connected the source end and a secondary winding connected to the load end of an AC power line to insert series compensation |
| 05/12/1999 | EP0914700A1 Method and device for maintaining electric power supply in a multiphase electric energy distribution network |
| 05/12/1999 | EP0783702B1 Method and device for measuring impedance in alternating current networks and method and device for preventing the formation of separate networks |
| 05/12/1999 | CN2318747Y Reactive power compensating controller |
| 05/12/1999 | CN2318746Y Domestic electrical equipment with reactive power compensation function |
| 05/12/1999 | CN2318745Y Power wire no-interrupt high-frequency signal controlled switch device |
| 05/12/1999 | CN1043394C Power converting circuit |
| 05/06/1999 | WO1999022286A1 Switching actuator for controlling electrical consumers |
| 05/06/1999 | EP0913916A2 Three-phase transformer |
| 05/06/1999 | EP0913905A2 Method and device for limiting the total power consumption of a plurality of electrical loads from a power supply network |
| 05/06/1999 | EP0913061A1 Processing data signals |
| 05/06/1999 | EP0913019A1 Electrical power transmitting system with reduced feeder size and method of operation |
| 05/06/1999 | DE19748147A1 Static compensator for reactive power compensation in electrical power supply network |
| 05/06/1999 | DE19746719C1 Power swing indication signal determination method e.g. for power supply network |
| 05/05/1999 | CN2317571Y Synchronous device for generator |
| 05/05/1999 | CN2317570Y Improved structure of power factor adjusting disc |
| 05/05/1999 | CN1216203A Switching system |
| 05/04/1999 | US5901053 Plant for transmitting electric power to remote facilities which have an electric motor load |
| 05/04/1999 | US5900723 Voltage based VAR compensation system |
| 04/30/1999 | CA2246776A1 Method and circuit configuration for power control with low switching surges for electrical loads |
| 04/29/1999 | DE19747157A1 Switch actuator for controlling electrical loads |
| 04/28/1999 | EP0911951A1 A device for providing a voltage source converter (VSC) with voltage |
| 04/28/1999 | EP0911842A2 Method for monitoring a tap changer |
| 04/28/1999 | CN2316758Y DC control AC contactor |
| 04/28/1999 | CN1215246A Frequency converter for outoging electric driving power to motor and filter installed on it |
| 04/28/1999 | CA2214370A1 Method and apparatus for coupling power generator to utility power grid |
| 04/27/1999 | US5898585 Apparatus and method for providing supplemental alternating current from a solar cell array |
| 04/27/1999 | US5898579 Non-contact power distribution system |
| 04/27/1999 | US5896948 Reserve power system |
| 04/22/1999 | WO1999019956A1 Slow circuit breaker protection circuit |
| 04/22/1999 | WO1994014220A8 Process and device for determining the ordinal numbers of non-characteristic harmonic currents and for compensating the same |
| 04/22/1999 | CA2250625A1 Method of monitoring a tap changer |
| 04/21/1999 | CN2315699Y Reactive compensator |
| 04/21/1999 | CN2315698Y Transformer type static dynamic reactive compensator |
| 04/21/1999 | CN2315697Y Current contactless low voltage power factor automatic compensator |
| 04/20/1999 | US5896285 Apparatus for interconnection in voltage-stiff converter devices |
| 04/20/1999 | US5896281 Power conditioning system for a four quadrant photovoltaic array with an inverter for each array quadrant |
| 04/20/1999 | US5895979 Power distribution network incorporating a voltage support transformer and process of use |
| 04/15/1999 | WO1999018647A1 Voltage shifter-adapter |
| 04/15/1999 | WO1999008357A3 Method and device for improving the current quality of a superimposed network |
| 04/14/1999 | EP0908001A1 Independent load sharing of ac power systems connected in parallel |
| 04/14/1999 | EP0908000A1 Wireless selective tripping of ac power systems connected in parallel |
| 04/14/1999 | CN1213880A Power converter |
| 04/14/1999 | CN1042995C Voltage source type electric converter |
| 04/14/1999 | CN1042990C Power converter protective appts. |
| 04/13/1999 | US5894422 System and methods that facilitate the introduction of market based economic models for electric power |
| 04/08/1999 | WO1999017427A1 Synchronous compensator plant |
| 04/08/1999 | WO1999017426A2 An electric power plant with electric machine and auxiliary power means |
| 04/08/1999 | DE19835857A1 Converter |
| 04/08/1999 | DE19743162A1 Method for impact-free mains synchronization of large wind power plants |
| 04/08/1999 | CA2305427A1 Synchronous compensator plant |
| 04/08/1999 | CA2305418A1 An electric power plant |
| 04/07/1999 | EP0906654A1 Power line harmonic reduction by hybrid parallel active/passive filter system with square wave inverter and dc bus control |
| 04/07/1999 | EP0906653A1 Filter equipment |
| 04/07/1999 | EP0906651A2 Rotating electrical machine plants |
| 04/07/1999 | EP0906599A1 System for optimizing a network plan and method of operation |
| 04/07/1999 | CN1042879C Static reactive power compensating equipment |
| 04/06/1999 | US5892645 Protection system for power receiving station |
| 04/06/1999 | US5892354 Voltage control apparatus and method for power supply |
| 04/06/1999 | US5892352 Synchronization of the switching action of hysteresis current controlled parallel connected power electronics systems |
| 04/06/1999 | CA2033874C Digital signal processing method and system, electric power system signal processing system and electric power control system |
| 03/31/1999 | EP0904621A1 Modular power management system and method |
| 03/31/1999 | EP0904620A1 Real-time pricing control system and methods regarding same |
| 03/31/1999 | EP0824777B1 Process and device for the static and dynamic support of a mains voltage by means of a static compensator with a self-commutated converter |
| 03/31/1999 | CN2312538Y Arrangement for connection of generator unit to a network |
| 03/31/1999 | CN1212530A Impedence regulator system and method |
| 03/30/1999 | CA2104006C Thyristor controlled series capacitor vernier control system |
| 03/25/1999 | WO1999014836A1 Power flow controller with dc-to-dc converter linking shunt and series connected inverters |
| 03/25/1999 | WO1999000883A3 Procedure to connect an asynchronous generator on an alternating current and an electrical connecting for use at this procedure |
| 03/25/1999 | CA2303534A1 Power flow controller with dc-to-dc converter linking shunt and series connected inverters |
| 03/24/1999 | EP0903829A1 Filter device having a control circuit and electric apparatus using such device |
| 03/24/1999 | EP0809876B1 Series-compensated converter station |
| 03/24/1999 | EP0793869B1 Series compensator inserting real and reactive impedance into electric power system for damping power oscillations |
| 03/24/1999 | EP0761031B1 Control of an installation for transmission of high-voltage direct current |
| 03/24/1999 | EP0760177B1 Recovery of transmitted power in an installation for transmission of high-voltage direct current |
| 03/24/1999 | CN2311880Y Powerless automatic compensating controller |
| 03/24/1999 | CN1212061A Method and device for automatically switching three-phase voltage for power-saving transformer |
| 03/23/1999 | US5886890 Power-supply system involving system interconnection |
| 03/23/1999 | US5886888 Voltage source type power converting apparatus |
| 03/23/1999 | US5886505 Apparatus and method for bringing on line a large synchronous condenser that cannot be started by an across the line start |
| 03/23/1999 | US5886493 Synchronous machine excitation control device for absorbing harmonics superposed onto fundamental current |