| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
|---|
| 03/23/1999 | US5886417 Electrical power generating installation and method of operating same |
| 03/18/1999 | WO1999013550A1 System for supplying electromotive consumers with electric energy |
| 03/18/1999 | WO1998041793A3 High efficiency lighting system |
| 03/18/1999 | DE19740611A1 Method of interrupting the current supply for an electrical load |
| 03/18/1999 | DE19739917A1 System zur Versorgung elektromotorischer Verbraucher mit elektrischer Energie System for supplying electric motor supplied with electrical energy |
| 03/18/1999 | DE19732218C1 Transformerless ac. inverter circuit, for coupling photovoltaic systems or wind generator systems, esp. in the low power range, to current networks |
| 03/17/1999 | EP0902534A2 Impedance regulator system and method |
| 03/17/1999 | EP0901691A2 Control equipment for an active filter |
| 03/17/1999 | CN1042580C Controlling apparatus of power exchanger with self blowout unit |
| 03/16/1999 | US5883802 Energy usage controller for an appliance |
| 03/16/1999 | US5883796 Dynamic series voltage restoration for sensitive loads in unbalanced power systems |
| 03/16/1999 | US5883445 Power sharing device |
| 03/11/1999 | WO1999012243A1 Method and device for offsetting network voltage distortions |
| 03/11/1999 | WO1999012242A1 Method and device for improving the quality of voltage of a secondary supply unit |
| 03/11/1999 | WO1998057244A3 Method and apparatus for power output control and correction |
| 03/11/1999 | CA2302498A1 Method and device for offsetting network voltage distortions |
| 03/11/1999 | CA2302344A1 Method and device for improving the voltage quality of a secondary supply unit |
| 03/10/1999 | EP0901212A2 Noise currents compensator in devices with switching power output stages |
| 03/10/1999 | EP0900464A1 Reduction of harmonics in ac machines |
| 03/10/1999 | EP0775383A4 Control circuit for cryogenically-cooled power electronics employed in power conversion systems |
| 03/10/1999 | CN1042477C Synchronizing method for synchronous power generator and network |
| 03/10/1999 | CN1042476C HVDC transmission |
| 03/09/1999 | US5880948 Method and apparatus for producing any desired M-phase, nth order electrical system in a converter-fed device |
| 03/09/1999 | US5880536 Customer side power management system including auxiliary fuel cell for reducing potential peak load upon utilities and providing electric power for auxiliary equipment |
| 03/09/1999 | US5878584 Air conditioner with solar generator |
| 03/04/1999 | WO1999010960A1 Circuit for stabilizing an ac power line |
| 03/04/1999 | DE19738467A1 Procedure for load-synchronous compensation of at least one load |
| 03/04/1999 | DE19738125A1 Verfahren und Vorrichtung zur Kompensation von in einem Netz auftretenden Netzspannungsverzerrungen Method and apparatus for compensating for occurring in a power line voltage distortions |
| 03/03/1999 | EP0898844A1 Switching system |
| 03/03/1999 | EP0796517B1 Process and device for generating any desired m-phase nth order distribution system in a converter-fed device |
| 03/03/1999 | EP0729662B1 Converter connection with a balancing circuit |
| 03/03/1999 | CN2309659Y Reactive dynamic compensating device for tracting power supply system |
| 03/03/1999 | CN1209914A Intelligent power supply with staged loading capability |
| 03/03/1999 | CN1209687A Harmonic current attenuation device for electric motor |
| 02/25/1999 | WO1999009636A1 Method for increasing the power at the shaft of an electric motor |
| 02/25/1999 | DE19734722A1 Verfahren und Vorrichtung zur Verbesserung der Stromqualität eines überlagerten Netzes Method and device for improving the current quality of a superimposed network |
| 02/24/1999 | CN1208982A Counter valtage inverse ratio regulation circuit system |
| 02/23/1999 | CA2097601C Control of power network |
| 02/18/1999 | WO1999008357A2 Method and device for improving the current quality of a superimposed network |
| 02/18/1999 | CA2300306A1 Method and device for improving the current quality of an overlay network |
| 02/16/1999 | US5872707 SVC converter with an extra phase leg to replace a failed phase leg |
| 02/11/1999 | WO1999007055A1 Method for injecting reactive power in an alternating current system, and inverter therefor |
| 02/11/1999 | WO1998048498A3 Energy management method and apparatus |
| 02/11/1999 | DE19735933A1 Resonance detection and damping circuit for AC network neutral system |
| 02/11/1999 | DE19733516A1 Blind load compensation method for AC voltage network |
| 02/11/1999 | CA2298784A1 Method for injecting reactive power in an alternating current system, and inverter therefor |
| 02/10/1999 | EP0896270A1 Reverse proportional voltage adjusting circuit system |
| 02/10/1999 | EP0896269A1 Method and device for automatically switching three-phase voltage for power saving transformer |
| 02/10/1999 | CN2307390Y AC large high precision fully automatic voltage stabilizer |
| 02/10/1999 | CN1042079C Power system compensator apparatus and power converter apparatus |
| 02/09/1999 | US5870293 System for signalling power unbalance between electric power stations |
| 02/09/1999 | US5869953 Retrofittable energy saving device |
| 02/04/1999 | WO1999005765A1 Device for compensating voltage fluctuations at the terminals of a load with unstable impedance |
| 02/04/1999 | DE19746574C1 Method of functional monitoring of step switches |
| 02/03/1999 | EP0895341A2 Switching control arrangement |
| 02/03/1999 | CN1206947A Electricity saving device for power supply line of oil pumping machine |
| 02/02/1999 | US5867376 DC magnetization suppression in power converter transformers |
| 02/02/1999 | US5867375 System for transmitting power |
| 02/02/1999 | US5867017 Energy control system with remote switching |
| 02/02/1999 | CA2158360C Method and control arrangement for dc transmission, and a control device |
| 01/27/1999 | EP0893775A1 Process and system for management of electrical power supply |
| 01/27/1999 | EP0893002A1 Method and device for determining short-circuit power in an electric power network |
| 01/27/1999 | EP0893001A1 Distributed frequency relay |
| 01/27/1999 | CN1206233A Controller of power tranfer device |
| 01/26/1999 | US5864474 Apparatus for controlling rescue operations and for improving power efficiency |
| 01/20/1999 | EP0891472A1 Process and plant for operating a block-type thermal power station |
| 01/20/1999 | CN1041779C Method for stabilizing power supply network against reactive load fluctuations, and power factor compensation device |
| 01/19/1999 | US5861683 Panelboard for controlling and monitoring power or energy |
| 01/19/1999 | CA2115710C Power supply |
| 01/13/1999 | EP0891029A2 Line control method |
| 01/13/1999 | EP0890212A1 Transformer arrangement |
| 01/13/1999 | EP0824779B1 Process and circuitry to cover peak energy demands in electric alternating or three-phase current networks |
| 01/13/1999 | EP0767982B1 Method and device for compensation of unbalance in a series-compensated converter station |
| 01/13/1999 | CN1204879A Device for distributing energy for airplane |
| 01/13/1999 | CN1204773A Method and apparatus for detecting out-of-step in electric power system |
| 01/13/1999 | CN1041679C Induction motor control apparatus providing high efficiency with rapid response to changes in load torque |
| 01/12/1999 | USRE36037 Electrical distribution system for vehicle |
| 01/12/1999 | US5859480 AC power supply controller for use in semiconductor fabrication facilities |
| 01/12/1999 | CA2161244C Method of phase-shifting voltages applied to susceptances interconnecting two synchronous polyphase ac networks and a phase-shifting interconnecting apparatus thereof |
| 01/07/1999 | WO1999000884A1 Aircraft secondary power system |
| 01/07/1999 | WO1999000883A2 Procedure to connect an asynchronous generator on an alternating current and an electrical connecting for use at this procedure |
| 01/07/1999 | EP0889571A2 An auxiliary electric supply apparatus |
| 01/07/1999 | EP0888662A2 Electromagnetic device |
| 01/07/1999 | EP0888661A2 An electric high voltage ac machine |
| 01/07/1999 | EP0888659A1 Customer side power management system and method |
| 01/07/1999 | EP0888628A1 Transformer/reactor |
| 01/07/1999 | EP0888627A1 A dc transformer/reactor |
| 01/07/1999 | DE19829424A1 Unipolar filter for reducing zero currents in electric power supply |
| 01/07/1999 | CA2294403A1 Aircraft secondary power system |
| 01/06/1999 | CN1204422A Process and device for regulating N power converter stations of multipoint hvdct network |
| 01/05/1999 | US5856776 Method and apparatus for signal coupling at medium voltage in a power line carrier communications system |
| 12/30/1998 | EP0887905A2 Procedure to connect an asynchronous generator on an alternating current and an electrical connecting for use at this procedure |
| 12/30/1998 | EP0886912A1 A converter device |
| 12/30/1998 | EP0886904A1 Apparatus for and method of evenly distributing an electrical load across a three-phase power distribution network |
| 12/30/1998 | EP0861406A4 Thermal energy storage air conditioning system |
| 12/30/1998 | EP0569556B1 Variable speed wind turbine |
| 12/30/1998 | CN1203703A Apparatus and method for interline power flow control |
| 12/30/1998 | CN1203657A Thermal energy storage air conditioning system |
| 12/29/1998 | US5854743 Control system for power conversion system |
| 12/29/1998 | CA2147926C Apparatus for controlling converter having self-arc-extinction elements |