| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 07/10/1997 | DE19600289A1 Electrical power supply network surge compensation method and device |
| 07/09/1997 | EP0782784A1 Process for regulating a four-quadrant regulator operating as a mains converter |
| 07/08/1997 | US5646811 Reverse-charge prevention apparatus |
| 07/08/1997 | US5646511 Power system compensator apparatus and power converter apparatus |
| 07/03/1997 | DE19654161A1 Power factor correction circuit e.g. for circuit mode power supply |
| 07/02/1997 | CN2257418Y Electricity-saving protector for refrigerator |
| 07/01/1997 | US5644485 Converter connection with a balancing circuit |
| 07/01/1997 | US5644482 HVDC transmission system with multiple converter stations |
| 07/01/1997 | US5644219 Solar energy system |
| 07/01/1997 | US5644214 Power factor correction circuit |
| 07/01/1997 | US5644175 For coupling a source to a load through a junction |
| 07/01/1997 | US5644174 Universal AC sequencer for a server |
| 07/01/1997 | US5644173 For controlling the energy usage in a facility |
| 06/26/1997 | WO1997023026A1 Load distribution and management system |
| 06/24/1997 | US5642007 Series compensator inserting real and reactive impedance into electric power system for damping power oscillations |
| 06/24/1997 | US5642006 Synchronizing device |
| 06/24/1997 | US5642005 Method for interconnecting two synchronous polyphase AC networks and interconnecting apparatus for the same |
| 06/24/1997 | US5642000 Method for preventing power collapse in electric power systems |
| 06/19/1997 | WO1997022174A1 A converter device |
| 06/19/1997 | WO1997022169A2 Voltage based var compensation system |
| 06/19/1997 | DE19547969C1 Electrical filter for reducing sub-harmonics or intermediate harmonics |
| 06/18/1997 | CN2256605Y 35KV outdoor type three phase high voltage reactive compensator |
| 06/18/1997 | CN1152205A Power converter protective appartus |
| 06/17/1997 | US5640060 Apparatus for synchronizing frequency and phase of two voltage sources |
| 06/17/1997 | CA2125457C Power converter |
| 06/11/1997 | EP0778672A2 Integrated circuit output buffer |
| 06/11/1997 | EP0777929A1 Fail-safe lighting system with load shedding and dimming |
| 06/11/1997 | EP0725994B1 Device for measuring the time element of a power switch |
| 06/11/1997 | CN1151626A Control and protection system for AC-DC conversion system |
| 06/11/1997 | CN1151598A Voltage lowering device and asynchronous traction system supplied from single-phase mains supply incorporating device of this kind |
| 06/10/1997 | US5638297 Method of on-line transient stability assessment of electrical power systems |
| 06/10/1997 | US5638295 Transfer switch system with subnetwork |
| 06/05/1997 | WO1997020375A2 Apparatus and method for interline power flow control |
| 06/05/1997 | WO1997020374A1 Polyphase static var compensator arrangement |
| 06/05/1997 | WO1997020373A2 Process and device for regulating n power converter stations of a multipoint hvdct network |
| 06/05/1997 | CA2238970A1 Process and device for regulating n power converter stations of a multipoint hvdct network |
| 06/04/1997 | EP0776540A1 Hybrid filter for reducing distortion in a power system |
| 06/04/1997 | CN1151217A Guide system for a power station |
| 06/03/1997 | CA2127834C Control system for power converter |
| 05/29/1997 | WO1997019304A1 Thermal energy storage air conditioning system |
| 05/29/1997 | CA2237323A1 Thermal energy storage air conditioning system |
| 05/28/1997 | EP0775383A2 Control circuit for cryogenically-cooled power electronics employed in power conversion systems |
| 05/28/1997 | CN2255110Y Reactive-load compensation device placed on electric wire pole |
| 05/28/1997 | CN1150717A Control system for power conversion system |
| 05/28/1997 | CN1150672A Method of initializing and updating network model |
| 05/22/1997 | WO1997018385A2 Method and device for rapid output adjustment of a power-generating facility |
| 05/21/1997 | CN1150267A Power system stabilizing apparatus |
| 05/20/1997 | US5631545 For firing solid state devices |
| 05/20/1997 | US5630341 Method for processing cable and wire |
| 05/15/1997 | DE19541370A1 Converter unit with superconducting magnetic energy store |
| 05/14/1997 | CN1149776A Compensating method for instantaneous voltage drop and its device |
| 05/13/1997 | US5629862 Method for selecting fault contingencies |
| 05/13/1997 | CA2036333C Series capacitor equipment |
| 05/09/1997 | WO1997016885A1 Interconnection system for transmitting power between electrical systems |
| 05/07/1997 | EP0771486A1 Dynamic method for preventing voltage collapse in electrical power systems |
| 05/07/1997 | CN2253887Y Outdoor on pole type power factor automatic compensation capacitor cabinet |
| 05/06/1997 | US5627760 Method and apparatus for real time recursive parameter energy management system |
| 05/06/1997 | US5627744 Converter enhanced variable frequency power bus architecture |
| 05/06/1997 | US5627737 Power inverter for use in system interconnection |
| 05/06/1997 | US5627735 Method and device for compensation of unbalance in a series compensated converter station |
| 05/06/1997 | US5627734 Method and control arrangement for DC transmission, and a control device |
| 05/06/1997 | US5627722 Single high voltage supply for use in a multiple developer electrophotographic printer |
| 05/06/1997 | US5627454 Method for stabilizing a power supply network against reactive load fluctuations, and a power factor compensation device |
| 05/02/1997 | EP0770232A1 Guide system for a power station |
| 04/30/1997 | CN1148747A Method and circuit for disconnecting transformer in depdendence on whether load connected thereto requires power, or not |
| 04/29/1997 | US5625751 Neural network for contingency ranking dynamic security indices for use under fault conditions in a power distribution system |
| 04/29/1997 | US5625548 Control circuit for cryogenically-cooled power electronics employed in power conversion systems |
| 04/29/1997 | US5625546 Method and apparatus for the variable allocation of static inverters to at least one load |
| 04/29/1997 | US5625277 Dynamic mechanically switched damping system and method for damping power oscillations using the same |
| 04/29/1997 | US5625236 Electrical load controller to regulate power consumption |
| 04/29/1997 | US5624572 Dialysis with electrical power, controllers and heaters |
| 04/23/1997 | EP0769216A1 Hvdc transmission |
| 04/23/1997 | EP0693218B1 Device for assembling power capacitors |
| 04/16/1997 | EP0767982A1 Method and device for compensation of unbalance in a series-compensated converter station |
| 04/16/1997 | EP0704114A4 A power converter with star configured modules |
| 04/15/1997 | US5621654 System and method for economic dispatching of electrical power |
| 04/15/1997 | US5621633 Apparatus for controlling converter having self-arc-extinction elements |
| 04/15/1997 | US5621626 Method and device for control of an installation for transmission of high-voltage direct current |
| 04/15/1997 | US5621305 Overload management system |
| 04/15/1997 | US5621256 Hysteresis in a circuit for sensing presence of a plug |
| 04/10/1997 | WO1997013309A1 Mains-adapted voltage-applying high-output oblique transformer controlled by a current converter |
| 04/09/1997 | EP0711466B1 Process, arrangement and use for limiting short circuit current on an electric energy transmission line |
| 04/09/1997 | EP0698309B1 Phase-shifting apparatus for interconnecting two synchronous polyphase ac networks |
| 04/08/1997 | US5619119 Method of phase-shifting voltages applied to susceptances interconnecting two synchronous polyphase AC networks and a phase-shifting interconnecting apparatus thereof |
| 04/08/1997 | US5619080 Line filter for reducing AC harmonics |
| 04/08/1997 | US5619079 For reducing electromagnetic interference in an electrical system |
| 04/03/1997 | DE19536468A1 Netzfreundlicher stromrichtergesteuerter, spannungseinprägender Schrägtransformator großer Leistung A network-compatible converter-controlled, voltage-applying oblique transformer of large power |
| 04/02/1997 | CN2251240Y Power factor booster for electronic ballast |
| 04/02/1997 | CN1146830A Installation for transmission of electric power by means of high-voltage direct current |
| 04/01/1997 | US5617447 Method of stabilizing a power supply network against reactive load fluctuations, and a reactive power compensation device |
| 04/01/1997 | US5617305 Current resonance type switching power supply circuit |
| 04/01/1997 | US5617012 Power converter protecting apparatus for electric power system |
| 04/01/1997 | US5616969 Power distribution system having substantially zero electromagnetic field radiation |
| 04/01/1997 | US5616968 Expandable AC power supply device |
| 04/01/1997 | US5616967 Method and apparatus for decoupling of unused power supply pins of a printed circuit board capable of operating at a plurality of predetermined voltages |
| 03/25/1997 | US5614770 For injecting current onto an ac power line |
| 03/19/1997 | CN2249987Y Capacity adjustable compact capacitor |
| 03/18/1997 | US5612609 Continuous conduction mode switching power supply with improved power factor correction |
| 03/18/1997 | CA2069665C Apparatus for detecting short-circuit for use in bi-polar d.c. transmission system |
| 03/13/1997 | WO1997009869A1 System and method for optimizing energy efficiency of a building system for a target energy consumption level |