Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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08/30/2000 | CN1264948A Universal controller for flexible AC transmission equipment |
08/29/2000 | US6111767 Inverter integrated instrumentation having a current-voltage curve tracer |
08/24/2000 | WO2000049698A1 Systems and methods for utilizing excess electric power from a marine transportation vessel |
08/24/2000 | DE19907575A1 Schaltungsanordnung zum Liefern eines Speisestromes Circuit arrangement for providing a supply current |
08/24/2000 | DE19906076A1 Vorrichtung zur Leistungsversorgung von elektrischen Verbrauchern, die an Sitzen in einem Flugzeug zugeordneten dezentralen Stromversorgungseinheiten angeschlossen sind An apparatus for power supply of electrical consumers that are connected to the associated seats in an aircraft remote power supply units |
08/23/2000 | CN1264471A Battery testing and classification |
08/23/2000 | CN1264201A Integrated solar energy application system for lifting water and lighting |
08/22/2000 | US6108226 Voltage selection apparatus and methods |
08/22/2000 | US6108222 Power factor correction circuit |
08/22/2000 | US6107785 Polyphase static var compensator arrangement for supply voltage regulation by energy dissipation |
08/22/2000 | US6107784 System interconnection protective device for non-utility generation equipment |
08/22/2000 | US6107610 Power factor correction system for a resistive load device |
08/22/2000 | US6107560 Photovoltaic power generation apparatus |
08/17/2000 | WO2000048302A1 Power supply |
08/17/2000 | WO2000048287A1 Ferroresonance-suppressing static transfer switch |
08/17/2000 | WO2000048286A1 Electric utility system with superconducting magnetic energy storage |
08/17/2000 | WO2000048149A1 Modular power quality monitoring device |
08/17/2000 | WO2000013284A9 Line power unit for micropower generation |
08/17/2000 | CA2362620A1 Power supply |
08/16/2000 | EP1028512A2 Power supply device for electric consumers connected to decentralised power supply units assigned to seats in an aircraft |
08/16/2000 | EP1027762A2 A plant for transmitting electric power, including vsc-converter and dc/dc-converter |
08/16/2000 | EP0944945A4 Improvements relating to signalling in electricity distribution systems |
08/16/2000 | CN2392294Y High voltage-resistant IGBT structure type high voltage arm |
08/16/2000 | CN1263643A Control equipment for active filters and method for reduction of harmonics in bipolar DC link |
08/16/2000 | CN1055573C High-low voltage capacitor complete compensator |
08/15/2000 | US6104624 System connecting device |
08/15/2000 | US6104182 Method of deriving a signal indicating an oscillation in an electric power supply system |
08/15/2000 | US6104171 Generator set with redundant bus sensing and automatic generator on-line control |
08/15/2000 | US6104102 Multi-quality electric power supply apparatus |
08/15/2000 | CA2178862C Power converter protective apparatus using mechanical and semiconductor bypass means |
08/10/2000 | WO2000031863B1 System with choke in parallel with a/c line for load conditioning |
08/10/2000 | DE19902997A1 Influencing effect of energy optimization system for limiting electrical power drain of several electric loads e.g. for large kitchens and bakeries, involves isolating certain loads from system during switch-off-free periods |
08/09/2000 | CN2391369Y Electric network reactive compensation shunt capacitor on-load group switch |
08/09/2000 | CN2391368Y Carrier signal direction controller |
08/09/2000 | CN2391367Y Electric network |
08/09/2000 | CN2391229Y Digital wave three phase AC voltage stabilizing device |
08/09/2000 | CN1262552A Photoelectric electric generator and its controlling method |
08/08/2000 | US6101073 Ground fault protecting apparatus and method for solar power generation and solar power generation apparatus using the apparatus and method |
08/08/2000 | US6100674 Method of monitoring a tap changer |
08/08/2000 | CA2152028C Variable speed generator-motor apparatus capable of improving accuracy of power system |
08/02/2000 | EP1024575A2 Photovoltaic power generation apparatus and control method thereof |
08/02/2000 | CN2390355Y Whole bridge phase-shift soft-switch communication basic switch supply unit |
08/02/2000 | CN2390354Y HF switch supply unit |
08/01/2000 | US6097506 Electricity turning-on control device and facsimile device |
08/01/2000 | US6097108 Apparatus and method for fail-safe control of events in preparation for electrical power transfers |
07/26/2000 | EP1022838A2 Electric power variation compensating device |
07/26/2000 | EP1022218A2 Marine power distribution arrangement |
07/25/2000 | US6094650 Database analysis using a probabilistic ontology |
07/25/2000 | US6093975 Turbogenerator/motor control with synchronous condenser |
07/19/2000 | EP1020006A1 Synchronous compensator plant |
07/19/2000 | EP1020005A2 An electric power plant |
07/19/2000 | EP1019998A1 Harmonic compensation apparatus and methods |
07/19/2000 | CN2388763Y 无功功率补偿器 Reactive power compensation |
07/19/2000 | CN2388738Y Receptacle with waveform pyrifying function |
07/19/2000 | CN1260621A All-weather reactive power self-compensating stati capacitor shield |
07/19/2000 | CN1054711C Method and device for compensating unbalance in series-compensated converter station |
07/18/2000 | CA2128125C Method of on-line transient stability assessment of electrical power systems |
07/13/2000 | WO2000041288A1 Load shifting control system for commercial refrigeration |
07/13/2000 | WO2000016463A8 Man-machine interface for a custom tabular display |
07/13/2000 | DE19920973A1 Equipment for improving power factor of air conditioning system equipped with inverter frequency changer by forced modification of the supply current wave shape |
07/13/2000 | DE19900185A1 Verfahren und Vorrichtung zum Schalten von Verbrauchern eines Elektrogerätes Method and apparatus for switching loads of an electrical appliance |
07/13/2000 | CA2358297A1 Load shifting control system for commercial refrigeration |
07/12/2000 | EP1018793A2 Method and device for switching a consumer of an electrical apparatus |
07/12/2000 | EP1018127A1 Power distribution network incorporating a voltage support transformer and process of use |
07/12/2000 | CN2387654Y Static reacive-load compensation equipment |
07/12/2000 | CN1259643A Device for improving power factor for air conditioner |
07/11/2000 | US6088688 Computerized resource accounting methods and systems, computerized utility management methods and systems, multi-user utility management methods and systems, and energy-consumption-based tracking methods and systems |
07/11/2000 | US6088245 Switching control arrangement |
07/06/2000 | DE19861015A1 Anordnung zur Einspeisung von elektrischem Strom in ein 3-phasiges Stromnetz Arrangement for feeding electric current in a 3-phase electricity network |
07/05/2000 | EP1017147A2 Device for feeding electrical current in a three-phase network |
07/05/2000 | EP1016752A2 Electric apparatus capable of turning off a power supply circuit automatically to inhibit resuming of operation until safety is ensured at the time of restoration from abnormal stop |
07/05/2000 | EP0803146A4 Structure and method for performing active injection mode filtering on an ac power system |
07/05/2000 | CN1258957A Supply unit for electronic machine |
07/05/2000 | CN1258948A Serial active filter method and system based on fundamental flux compensation |
07/04/2000 | US6084318 Customer side power management system including auxiliary fuel cell for reducing potential peak load upon utilities and providing electric power for auxiliary equipment |
06/29/2000 | DE19960543A1 Vorrichtung für das automatische Abschalten der Standby-Leistung eines Gerätes Apparatus for the automatic shutdown of the standby power of a device |
06/29/2000 | DE19858218A1 Maintaining upper total power limit for group of electrical loads when drawing power from supplier involves switching off load(s) at least temporarily depending on total power trend |
06/28/2000 | EP1014534A1 Source-transfer switching system and method |
06/28/2000 | EP1014530A2 Electrical power distribution installation for electrical power system |
06/28/2000 | EP1012946A1 Method and device for improving the quality of voltage of a secondary supply unit |
06/28/2000 | EP1012945A1 Series compensation of electric alternating current machines |
06/28/2000 | EP1012943A1 System for supplying electromotive consumers with electric energy |
06/28/2000 | CN1258123A Electric power system protection and control system and method, and storage medium for program module |
06/27/2000 | CA2162073C Apparatus and method for generating a signal representative of total harmonic distortion in waveforms of an a/c electrical system |
06/21/2000 | EP1010231A1 Method and device for offsetting network voltage distortions |
06/21/2000 | CN2384356Y Power compensating energy-saving device |
06/21/2000 | CN1053770C Method and device for controlling series-compensated converter station |
06/21/2000 | CN1053769C Method and device for controlling series-compensated converter station |
06/20/2000 | US6078162 Method for operating parallel DC-linked AC converters for feeding an asynchronous motor and circuitry for carrying out the method |
06/20/2000 | US6078110 Method of obtaining the adjustable capacitor |
06/15/2000 | WO2000035061A1 Switching apparatus and method for an electric power transmission line section |
06/14/2000 | EP1009084A2 Electrical equipment having energy saving mode capable of shutting off of supplying of voltage to primary power supply supplying circuit under no use thereof |
06/14/2000 | EP1009054A2 Fuel cell device |
06/14/2000 | CN2383271Y Program control intelligent power saving device |
06/14/2000 | CN2383262Y Power factor computer automatic compensator |
06/14/2000 | CN1256543A Electric machine |
06/14/2000 | CN1256542A Overvoltage suppressor blocking static reactive power generator under pulse mode |
06/14/2000 | CN1053531C Method for correcting harmonic distortion |
06/13/2000 | US6075350 Power line conditioner using cascade multilevel inverters for voltage regulation, reactive power correction, and harmonic filtering |
06/13/2000 | US6075349 Compensation device and power transmission system using a compensation device |