| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 08/21/2008 | US20080197703 Power Supply Control Circuit and Electronic Circuit |
| 08/21/2008 | US20080197702 Programmable infrastructure system |
| 08/21/2008 | DE202008007988U1 Netzgerät mit einem Systemumschaltkreis AC adapter with a Systemumschaltkreis |
| 08/21/2008 | DE202006020446U1 Schiff mit einem Universal-Landanschluss Ship with a universal shore supply |
| 08/21/2008 | DE102007006719A1 Anordnung und Verfahren zur Kompensation eines Fehlerstromes bei einem Erdschluss Apparatus and method for compensating a fault current for a ground fault |
| 08/20/2008 | EP1959536A2 Cogeneration system |
| 08/20/2008 | EP1959535A2 Cogeneration system |
| 08/20/2008 | EP1959534A1 Utility grid, controller, and method for controlling the power generation in a utility grid |
| 08/20/2008 | EP1959136A2 Wind park including wind energy arrays with turn angle moved towards each other |
| 08/20/2008 | EP1958309A1 Electrical energy transmission device |
| 08/20/2008 | EP1748529B1 Method and system for the forecast of needed energy quantities of a consumer, in particular industrial consumer, from an energy provider or energy dispatcher, and device for energy need forecast |
| 08/20/2008 | EP1423908A4 Electrical power conservation apparatus and method |
| 08/20/2008 | CN101247073A Energy feedback and harmonic reactive-load compensation system suitable for multi-group commutating device |
| 08/20/2008 | CN101247049A Utility grid, controller, and method for controlling the power generation in a utility grid |
| 08/20/2008 | CN101247048A Coordinated action method for steam generator set shafting torsional oscillation protection |
| 08/20/2008 | CN101247047A Three-phase co-compensation and split-phase compensation combined power-factor adjustment device |
| 08/20/2008 | CN101247046A Harmonic wave dynamic managing and reactive-load dynamic compensation compound control method and implementing device thereof |
| 08/20/2008 | CN101247045A Electric voltage safety monitoring method based on voltage stabilization field in partition load space |
| 08/20/2008 | CN101247044A High-efficiency non-error seamless updating method of automatization main station system |
| 08/20/2008 | CN101246505A Electric network electromagnet transient and electromechanical transient hybrid simulation system and simulation method thereof |
| 08/20/2008 | CN100413174C Method and apparatus for carrying out combining-net using voltage control type inverter |
| 08/20/2008 | CN100413173C Thyristor based static synchronous compensator |
| 08/20/2008 | CN100413172C Power factor compensation method |
| 08/19/2008 | US7414331 Power converter system and method |
| 08/19/2008 | US7414330 Power switch device |
| 08/19/2008 | US7414329 Polyphase power distribution and monitoring apparatus |
| 08/19/2008 | CA2621696A1 Cogeneration system |
| 08/14/2008 | WO2008097761A1 Parallel hts transformer device |
| 08/14/2008 | WO2008097591A2 Multi-source, multi-load systems with a power extractor |
| 08/14/2008 | WO2008097458A1 Power-line sag calculation by way of power-system state estimation |
| 08/14/2008 | WO2008096133A2 An electrical supply system |
| 08/14/2008 | WO2008095988A1 A grid-tie |
| 08/14/2008 | WO2008061924A3 Device for flexible power transmission and deicing of a high-voltage power line by means of direct current |
| 08/14/2008 | US20080195255 Utility grid, controller, and method for controlling the power generation in a utility grid |
| 08/14/2008 | US20080193584 Electric Service Load Management |
| 08/14/2008 | US20080191669 Method and apparatus for regulating a power supply of an integrated circuit |
| 08/14/2008 | US20080191637 Method and apparatus for controlling electrical lighting installations |
| 08/14/2008 | US20080191553 Semiconductor integrated circuit |
| 08/14/2008 | DE102007005852A1 Wind park, has accumulative network, turbine transformers and wind energy plants, where group of wind energy plants has separate swiveling transformer that produces swiveling phase to another group of wind energy plants |
| 08/14/2008 | CA2680561A1 Multi-source, multi-load systems with a power extractor |
| 08/13/2008 | EP1954560A2 Method for supplying the electrical on-board power network of ships with external energy |
| 08/13/2008 | EP1361639B1 Power system having generator driven by engine |
| 08/13/2008 | CN201100940Y Main circuit structure for middle and low voltage energy feedback power unit |
| 08/13/2008 | CN201100261Y Intelligent energy-saver for wind engine |
| 08/13/2008 | CN101242103A Intelligent optimization method for power system stabilizer parameter |
| 08/13/2008 | CN101242102A Method for integrated evaluation of large-scale complex power grid |
| 08/13/2008 | CN101242101A Establishment method and simulation method for load harmony wave stabalized status model of power system |
| 08/13/2008 | CN101242100A Fixed current power output control system |
| 08/13/2008 | CN101242086A Ice and snow fusion method for air power transmission line |
| 08/13/2008 | CN101241377A Photovoltaic grid-connected circuit topological structure |
| 08/13/2008 | CN100411299C Energy-saving control method and apparatus for asynchronous motor of walking-beam pumping unit |
| 08/13/2008 | CN100411273C Series composation step-up single phase power factor correction circuit |
| 08/13/2008 | CN100411272C Method for switching highvoltage line without interrupting by introducing second power line |
| 08/13/2008 | CN100411201C Electric power device and lights for vehicle |
| 08/12/2008 | US7412304 Power system for area containing a set of power consumers |
| 08/12/2008 | US7411313 Controller for plural supplies driving single load |
| 08/09/2008 | CA2620535A1 Electrical power control outlet and system |
| 08/07/2008 | WO2008094447A1 System and method for configuring a wireless module power limit |
| 08/07/2008 | WO2008094403A2 Power system with multiple generator sets |
| 08/07/2008 | WO2008094086A1 Tapping power from a hvdc transmission system |
| 08/07/2008 | WO2008094051A1 Switching technique for efficient electrical power utilization |
| 08/07/2008 | WO2008092251A1 Assembly for transmitting n-phase current |
| 08/07/2008 | US20080189061 Real-time power-line sag monitoring using time-synchronized power system measurements |
| 08/07/2008 | US20080185916 Application of Power Multiplication to Electric Power Distribution |
| 08/07/2008 | CA2676375A1 Assembly for transmitting n-phase current |
| 08/07/2008 | CA2676164A1 Switching technique for efficient electrical power utilization |
| 08/06/2008 | EP1953892A2 Grid interconnection device, grid interconnection system and electric power control system |
| 08/06/2008 | EP1953891A1 A customer intelligent reactive power automatic compensation energy-saved device |
| 08/06/2008 | EP1953856A2 Fuel cell system using external heat sources for maintaining internal temperature |
| 08/06/2008 | EP1952503A2 Power distribution load shedding system and method of use |
| 08/06/2008 | EP1952500A1 Device for limiting current of electric appliance |
| 08/06/2008 | EP1952292A2 Flexible electric load management system and method therefor |
| 08/06/2008 | CN201097438Y Controllable powerless and harmony wave generator circuit |
| 08/06/2008 | CN101238625A 电网响应控制设备 Grid response control device |
| 08/06/2008 | CN101238624A System and method for centralized monitoring of distributed power transformer |
| 08/06/2008 | CN101237185A Energy feedback and harmonic wave passive compensation system applicable to commutation device |
| 08/06/2008 | CN101237150A Integrated device of efficient light voltage parallel network and mixed active power filter |
| 08/06/2008 | CN101237149A Method and apparatus for improving AC transmission system using DC transmission system |
| 08/06/2008 | CN101237148A Low-frequency surge detection and protection method and device for power system |
| 08/06/2008 | CN101237147A Integrated power capacitor |
| 08/06/2008 | CN101237145A M-series modulation and variance judgement based parallel network active alone island detection system and method |
| 08/06/2008 | CN101237134A DC high current ice fusion device with static dynamic no-power compensation function |
| 08/06/2008 | CN100409360C Control apparatus and control method |
| 08/06/2008 | CN100409135C Stabilivolt circuit |
| 08/06/2008 | CN100408365C Electromagnetic interference filter |
| 08/05/2008 | US7408270 Forward converter |
| 08/02/2008 | CA2576846A1 Reversing switch |
| 07/31/2008 | WO2008091820A2 Unity gain voltage buffer with dual supply voltage |
| 07/31/2008 | WO2008090283A2 Active filtration of a three-phase current |
| 07/31/2008 | WO2008071995A3 Load balancing arrangement |
| 07/31/2008 | WO2008046081A3 Noise reduction circuits |
| 07/31/2008 | US20080179959 Power system with multiple generator sets |
| 07/31/2008 | US20080179954 Unity gain voltage buffer with dual supply voltage for managing current consumption in low voltage applications |
| 07/31/2008 | US20080179953 Combined Power Switch and Data distribution unit |
| 07/31/2008 | US20080179952 Circuit Arrangement for Supplying Variable Loads from Three Phases |
| 07/31/2008 | US20080179951 Wide-voltage-range converter |
| 07/30/2008 | EP1950505A2 System for controlling demand of multi-air conditioner |
| 07/30/2008 | EP1950504A2 System and method for controlling demand of multi-air conditioner |
| 07/30/2008 | EP1949601A2 A home automation system |
| 07/30/2008 | EP1949521A1 Device for inhibit energy diversion in circuits/networks |