| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 09/13/1994 | US5347191 Dynamic transformer power supply |
| 09/13/1994 | US5346163 Power supply regulation system for a railway |
| 09/08/1994 | DE4306581A1 Method for detecting a defective invertor in an invertor parallel circuit |
| 09/07/1994 | EP0613517A1 Steam generating power station, process for operating the same and interlinking network. |
| 09/07/1994 | EP0546167A4 Electrical distribution system with improved circuit for multiple circuit breaker control |
| 09/07/1994 | EP0538298A4 A switchboard |
| 09/06/1994 | US5345377 Harmonic controller for an active power line conditioner |
| 09/06/1994 | US5345375 System and method for reducing harmonic currents by current injection |
| 09/06/1994 | US5345360 Control circuit controlling switching of a latching relay |
| 08/31/1994 | EP0613078A1 Automatic monitor power reduction system for a computer |
| 08/31/1994 | EP0520981B1 Process and device for detecting the load angle of a generator connected to an electric supply network |
| 08/30/1994 | US5343139 Generalized fast, power flow controller |
| 08/30/1994 | US5343080 Harmonic cancellation system |
| 08/24/1994 | EP0612133A1 Device for preventing reverse charging |
| 08/24/1994 | CN2175487Y Low voltage screen for reactive power compensation with wave-filtration function |
| 08/24/1994 | CN2175486Y Hall-effect type controlling device for automatically compensating reactive power for power network |
| 08/23/1994 | US5341281 Harmonic compensator using low leakage reactance transformer |
| 08/18/1994 | WO1994018683A1 System for reducing harmonics by harmonic current injection |
| 08/10/1994 | EP0610058A2 Device for suppressing voltage fluctuation and higher harmonics |
| 08/10/1994 | EP0609434A1 Active filter for reducing non-fundamental currents and voltages |
| 08/04/1994 | WO1994017579A1 Method for interconnecting two synchronous polyphase ac networks and interconnecting apparatus for the same |
| 08/03/1994 | CN2173474Y Electric network harmonic wave active suppressing device |
| 08/02/1994 | US5334927 Multiphase switching system and generator arrangement having such a switching system |
| 07/27/1994 | EP0436627B1 Method and apparatus for controlling a power converter |
| 07/19/1994 | US5331535 Power conversion control apparatus |
| 07/12/1994 | US5329222 Apparatus and method for dynamic voltage restoration of utility distribution networks |
| 07/06/1994 | EP0604540A1 Measuring process for obtaining a switching command in a rapid changeover device. |
| 07/05/1994 | US5327355 Voltage or reactive power control method and control device therefor |
| 07/05/1994 | US5327336 Constant voltage constant frequency inverter and method for controlling the same |
| 07/05/1994 | CA2086650A1 Multi-bushing single-phase electric distribution transformer for feeder phase current balancing |
| 07/05/1994 | CA1330579C Utility metering |
| 06/29/1994 | EP0603374A1 Computer-controlled circuit breaker arrangement with circuit breaker having identification circuit |
| 06/28/1994 | US5325285 Parallel running control apparatus for PWM inverters |
| 06/28/1994 | US5324990 Voltage inverter power conservation circuit |
| 06/23/1994 | WO1994014236A1 Power control system for an a.c. induction motor |
| 06/23/1994 | WO1994014220A1 Process and device for determining the ordinal numbers of non-characteristic harmonic currents and for compensating the same |
| 06/23/1994 | WO1994014219A1 Device and process for reversibly storing electric power by its reversible transformation |
| 06/23/1994 | WO1994014129A1 Local in-device memory feature for electrically powered medical equipment |
| 06/23/1994 | DE4341508A1 Reactive power compensation system |
| 06/23/1994 | CA2151829A1 Power control system for an a.c. induction motor |
| 06/21/1994 | US5323330 Reduction of disturbances in a power network |
| 06/21/1994 | US5323307 Power management and automation system |
| 06/15/1994 | CN2169241Y Imaginary power compensating controller |
| 06/15/1994 | CN2169240Y Starting protection box of energy-saving three phase asynchronous motor |
| 06/14/1994 | US5321598 Three-phase active filter utilizing rotating axis transformation |
| 06/14/1994 | CA2054051C Integrated motor drive and recharge system |
| 06/09/1994 | WO1994012945A1 Subscriber electric power load control system |
| 06/08/1994 | EP0600809A1 AC dynamic compensator |
| 06/08/1994 | EP0600312A2 Method of controlling parallel-connected inverters on the basis of current maximal values |
| 06/08/1994 | EP0600073A1 Computer-controlled circuit breaker energy management arrangement having reliable memory and clock |
| 06/07/1994 | US5319535 Active power line conditioner having capability for rejection of common-mode disturbances |
| 06/07/1994 | US5319534 Series-parallel active power line conditioner utilizing reduced-turns-ratio transformer for enhanced peak voltage regulation capability |
| 06/07/1994 | US5319513 Harmonic monitor and protection module |
| 06/04/1994 | CA2110072A1 Method for the parallel connection of inverters by reference to extreme current values |
| 06/01/1994 | CN1087453A Method and apparatus for harmonic distortion correction |
| 05/31/1994 | US5317500 Active no-break power transfer control for a VSCF power generating system |
| 05/31/1994 | US5317366 Processing unit and system including plurality of the processing units |
| 05/26/1994 | WO1994011939A1 Safety shut-off for modular office panels |
| 05/25/1994 | EP0598465A2 Method and apparatus for harmonic distortion correction |
| 05/25/1994 | CN1087211A Current-regulation type reactive static compensator for automatic constant voltage source |
| 05/24/1994 | US5315499 Computer-controlled circuit breaker energy management arrangement having reliable memory and clock |
| 05/24/1994 | US5315497 Symmetrical universal AC-AC power conditioner |
| 05/18/1994 | EP0597322A2 Consumption management and control device particularly for civil electric systems |
| 05/18/1994 | EP0597039A1 Plural inverter control arrangement |
| 05/18/1994 | CN1024618C Parallel operation controller for pulse-width modulation inversing device |
| 05/11/1994 | WO1994010745A1 Harmonic controller for an active power line conditioner |
| 05/11/1994 | WO1994010744A1 Active power line conditioner with synchronous transformation control |
| 05/11/1994 | WO1994010743A1 Load current fundamental filter with one cycle response |
| 05/11/1994 | CA2147257A1 Active power line conditioner with synchronous transformation control |
| 05/11/1994 | CA2146987A1 Load current fundamental filter with one cycle response |
| 05/11/1994 | CA2146761A1 Harmonic controller for an active power line conditioner |
| 05/10/1994 | US5311066 Universal phase match path generator for three-phase power |
| 05/04/1994 | EP0594851A1 Electric power accumulating apparatus |
| 05/04/1994 | EP0594833A1 Vernier control system for subsynchronous resonance mitigation. |
| 05/04/1994 | CN1086351A Automatic regulating device for capacity of transformer |
| 05/03/1994 | US5309353 Multiple reference frame controller for active filters and power line conditioners |
| 05/03/1994 | US5309346 Transmission line fault current dynamic inverter control |
| 04/27/1994 | CN1086052A Electric power distribution technique for additional dc city electricity or dc city electricity |
| 04/26/1994 | CA2010571C Power transmission and distribution digital protection system |
| 04/21/1994 | DE4235274A1 Setting-up and operating controllable and non-controllable electrical equipment e.g. lighting - entering facts contg. measured and stored sequence of instantaneous power input values and corresp. energy consumption values and calculating weighting matrix |
| 04/20/1994 | EP0593258A2 Power supply |
| 04/19/1994 | US5305242 AC power supply apparatus and load current measurement method in AC power supply apparatus |
| 04/19/1994 | US5304911 Power control system for an A.C. induction motor |
| 04/14/1994 | WO1994008382A1 Synchronizer |
| 04/14/1994 | WO1994008381A1 Apparatus and method for charging electric vehicles |
| 04/13/1994 | EP0592335A1 Independent self-service device for delivering electrical power |
| 04/13/1994 | EP0591620A1 Battery power supply system |
| 04/13/1994 | EP0294394B1 Peak power shaving apparatus and method |
| 04/13/1994 | CN1024246C Switch-mode power supply with burst mode standby operation |
| 04/12/1994 | US5302906 Method and arrangement for determining a load angle of a generator which is connected to an electrical supply network |
| 04/12/1994 | US5302857 Portable power adapter |
| 04/05/1994 | US5301256 State space search system |
| 04/05/1994 | US5301121 Measuring electrical parameters of power line operation, using a digital computer |
| 04/03/1994 | CA2107490A1 Pulse width modulation with bypass mode |
| 03/31/1994 | WO1994007291A1 Method and arrangement for detecting and damping transient oscillations at or near a natural resonant frequency in a power transmission system |
| 03/31/1994 | DE4232356A1 Power supply system with at least two rectifier-inverter pairs - has voltage from one pair phase-shifted with respect to other pair thus eliminating unwanted harmonics |
| 03/30/1994 | CN1024105C Arrangement for compensating reactive power |
| 03/23/1994 | CN2159627Y Power factor self compensating controller |
| 03/23/1994 | CN1084327A Method and apparatus for an asynchronous static switch |
| 03/22/1994 | US5297015 Power supply control system |