| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 02/28/2002 | CA2421789A1 Method to enable customers to respond to prices in a pool type energy market |
| 02/27/2002 | EP1181759A1 Electrical peak load distributor |
| 02/27/2002 | CN2479673Y Reactive energy-saving box for electric machine |
| 02/27/2002 | CN2479672Y Contactless switch for compensation system |
| 02/27/2002 | CN1338139A Electric utility system with superconducting magnet energy storage |
| 02/27/2002 | CN1337768A Method and wire for reducing or eliminating resistance in power transmission line |
| 02/26/2002 | US6351400 Method and apparatus for a solar power conditioner |
| 02/26/2002 | US6351106 Static voltage regulator and controller |
| 02/26/2002 | US6351103 Process for supplying electrical energy to the network with an AC generator associated with a turbine |
| 02/26/2002 | US6351083 Circuit for selective power supply to electrical units |
| 02/21/2002 | WO2002015365A2 Energy management system and methods for the optimization of distributed generation |
| 02/21/2002 | WO2002015362A1 Circuit arrangement for the static generation of a variable electric output |
| 02/21/2002 | US20020021113 Load drive circuit having parallel-connected switch circuits |
| 02/21/2002 | DE10039134A1 Energy supply control method for electrical loads in electrical energy supply network uses control and distribution device for selectively connecting load to supply network |
| 02/21/2002 | DE10038815A1 Controlled current overload method for MV or HV network components evaluates measured parameter controlling current overload for providing new parameter value |
| 02/20/2002 | CN2478273Y User's network reactive power auto compensator |
| 02/20/2002 | CN1079602C Inverter control unit |
| 02/19/2002 | US6348778 Method and apparatus for improving the voltage quality of secondary power supply unit |
| 02/14/2002 | WO2002013352A1 Digital signal voting scheme |
| 02/14/2002 | WO2002013351A1 Electric power device controller and working power control system using the same |
| 02/14/2002 | WO2001071887A3 Monitoring and security arrangement |
| 02/14/2002 | WO2001071881A3 Energy management system which includes on-site energy supply |
| 02/14/2002 | US20020019740 Electric power marketing method and electric power marketing system |
| 02/14/2002 | US20020017973 Tuned filters for electric power systems |
| 02/14/2002 | US20020017947 Semiconductor circuit device having hierarchical power supply structure |
| 02/14/2002 | US20020017893 Method and circuit for using polarized device in AC applications |
| 02/14/2002 | US20020017821 Generator transfer switching system with multiple generator modes |
| 02/13/2002 | CN1335559A Method for maintaining information management system and providing maintenance plan |
| 02/13/2002 | CN1079175C Electric system reactive power automatic regulating & controlling method |
| 02/07/2002 | WO2002011263A2 Power grid backfeed protection apparatus |
| 02/07/2002 | WO2002010877A2 System of and method for power management |
| 02/07/2002 | WO2001082445A3 Multiple power generator connection method and system |
| 02/07/2002 | US20020014802 Power system utilizing a DC bus |
| 02/07/2002 | DE10020182A1 Three phase, sinusoidal power transformation with freely-adjustable primary side power factor, adjusts primary voltage source and input current phase angles |
| 02/07/2002 | CA2415857A1 System of and method for power management |
| 02/06/2002 | EP1178417A2 Maintenance information management system and method of providing a maintenance plan |
| 02/06/2002 | CN1078972C Method and apparatus for filtering electric current supplied to motor |
| 02/01/2002 | CA2353667A1 Generator transfer switching system |
| 01/31/2002 | US20020013689 Electric power generation process and apparatus |
| 01/31/2002 | US20020012215 Protection of a dynamic voltage restorer |
| 01/30/2002 | EP1176690A2 Device and method for distributing electrical load between multiple load consuming devices |
| 01/30/2002 | EP1176689A2 Power consuption system, information assembly and medium |
| 01/30/2002 | CN1078761C System networking electric generator |
| 01/29/2002 | US6342779 Method of control by phase angle |
| 01/24/2002 | WO2002007365A2 System and method for monitoring and controlling energy usage |
| 01/24/2002 | WO2001041547A3 Capacitor bank switching |
| 01/24/2002 | US20020010624 Advertisement providing method and system therefor |
| 01/24/2002 | US20020008982 Method and control system for voltage control at a converter station |
| 01/23/2002 | EP1174993A1 Method and control system for voltage control at a converter station |
| 01/23/2002 | EP1174004A2 Method and device for supplying an electric arc melting furnace with current |
| 01/22/2002 | CA2219336C System for signalling power unbalance between electric power stations |
| 01/21/2002 | CA2337970A1 Maintenance information management system and method of providing a maintenance plan |
| 01/17/2002 | WO2002005412A1 Active filter and method for suppressing current harmonics |
| 01/17/2002 | WO2002005403A1 Grid-linked power supply |
| 01/17/2002 | WO2001071897B1 An improved electrical substation |
| 01/17/2002 | US20020007388 Energy service business method and system |
| 01/17/2002 | US20020005704 Driving system for driving AC motor |
| 01/17/2002 | US20020005668 Power flow management in an electric power grid |
| 01/16/2002 | CN2472390Y Intellectual automatic reactive voltage regulator |
| 01/15/2002 | US6339538 Inverter circuit and method of operation |
| 01/15/2002 | US6339265 Voltage drop compensating reactor |
| 01/15/2002 | US6339263 Plant for feeding alternating voltage with reduced losses |
| 01/10/2002 | US20020003688 System for monitoring power consumers in an electrical circuit |
| 01/10/2002 | US20020003379 High efficiency lighting system |
| 01/09/2002 | CN2471006Y Outdoor compound powerfree compensation device |
| 01/09/2002 | CN2471005Y High-voltage prize-type power-free compensation device |
| 01/09/2002 | CN2470995Y 低压配电箱 Low-voltage distribution box |
| 01/09/2002 | CN1330442A Method for grouping cmpensation capacitors to regulate power factor of electric power network |
| 01/08/2002 | US6338009 Method and apparatus for estimating frequency characteristics of power system, and application thereof |
| 01/08/2002 | US6337561 Apparatus for stabilizing a power system adapted to generating systems |
| 01/03/2002 | WO2001073921A3 Method and apparatus for coordinating uninterruptible power supply modules to provide scalable, redundant power |
| 01/03/2002 | WO2001073518A9 Wind power plant having fixed-speed and variable-speed windmills |
| 01/03/2002 | US20020002115 Direct current (DC); phase angle of the AC (alternating current) power is controlled by controlling a current component of the AC power; computer programs; energy storage devices, such as superconducting magnet |
| 01/03/2002 | DE10021466A1 Device for exchanging electrical power between primary and secondary side 3-phase systems, has matrix converter whose switching state is determined from current influencing parameters |
| 01/02/2002 | EP1168566A2 System and method for synchronizing the phase angle for an AC power source with a grid |
| 01/02/2002 | EP1168565A1 Protection of a dynamic voltage restorer |
| 01/02/2002 | EP1168564A1 Controller of adjustable DC voltage for a transformerless reactive series compensator |
| 01/02/2002 | EP1168563A2 Power amount control method and apparatus |
| 01/02/2002 | EP1168562A2 Electric power marketing method and electric power marketing system |
| 01/02/2002 | EP1168270A2 System for surveillance of electricity consumers in an electric circuit |
| 01/02/2002 | EP1166422A1 Improved method for supplying electric power to a network using an alternating current generator associated with a turbine |
| 01/02/2002 | EP1166421A1 Control of active power in a high voltage direct current transmission system |
| 01/02/2002 | EP0906653B1 Filter equipment |
| 01/02/2002 | CN1077340C Intelligent power supply with staged loading capability |
| 12/27/2001 | WO2001098851A1 System and method for monitoring and controlling energy distribution |
| 12/27/2001 | US20010056330 Anti-islanding method and apparatus for distributed power generation |
| 12/27/2001 | US20010055186 Zero threshold surge suppressor |
| 12/26/2001 | CN2468202Y Low-voltage comprehensive reactive-load compensation equipment |
| 12/25/2001 | US6333863 Method to compensate for unbalanced loads in polyphase systems |
| 12/25/2001 | US6333569 Pulse width modulation method of inverter |
| 12/20/2001 | WO2001097359A1 A method and a device for stabilizing power generated by groups of generators |
| 12/20/2001 | WO2001096993A2 Control circuit for sequentially switching electrical loads |
| 12/20/2001 | DE10126303A1 Verifying operation of electrical supply modules, involves detecting operation of each module at defined time, so that not more than one module commences operating at any time |
| 12/19/2001 | EP1164691A1 Control method of a wind power station and wind power station |
| 12/19/2001 | EP0852841B1 Mains-adapted voltage-applying high-output oblique transformer controlled by a current converter |
| 12/19/2001 | CN2466840Y Thyristor trigger circuit of high-voltage static type dynamic reactive power compensation device |
| 12/19/2001 | CN2466839Y Power supply common mode and series mode noise filter specially adapted for household cinema |
| 12/19/2001 | CN1327291A Method for determining load exchange state of electric distribution system |
| 12/19/2001 | CN1076532C System for evenly distributing electrical load across three-phase power |
| 12/19/2001 | CN1076529C Distributed freqquency relay |