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