Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › H02J 3 - Circuit arrangements for ac mains or ac distribution networks
Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
10/1983
10/25/1983US4412136 Load control for energy converters
10/11/1983US4409491 AC Frequency and phase synchronizer
10/11/1983CA1155176A1 Method for compensation of the reactive power of an electric smelting furnace operated with three-phase current
10/04/1983US4408149 Self-optimizing voltage control of an induction motor
10/04/1983CA1154823A1 Method and apparatus for controlling inverters in parallel operation
09/1983
09/27/1983US4406991 High power resonance filters
09/27/1983US4406984 Current responsive devices for synchronous generators
09/13/1983US4404511 Motor power factor controller with a reduced voltage starter
09/07/1983EP0087640A2 Control device for a converter
09/06/1983US4403292 Control for an electrical generating and distribution system, and method of operation
08/1983
08/23/1983US4400655 Self generative variable speed induction motor drive
08/23/1983CA1152562A1 Dual speed control circuit for power flow through an inverter
08/17/1983EP0086156A1 Programmer for controlling a refrigeration plant with multiple compressors
08/16/1983US4399397 Electronic phase shift and speed governor
08/16/1983CA1152154A1 Protected converter arrangement
08/10/1983EP0085249A1 Method and apparatus for electrical power conversion
08/09/1983US4398232 Protective relaying methods and apparatus
08/09/1983US4398141 Static VAR generators
08/03/1983EP0084651A1 Power conversion equipment
07/1983
07/26/1983US4395674 Regulating system employing an RMS composite controller
07/19/1983US4394614 Static VAR generators
07/19/1983US4394585 Power circuit-breaker with remote-controllable operation threshold
07/13/1983EP0083487A1 Static VAR generator
07/12/1983US4393157 Variable inductor
06/1983
06/29/1983EP0082160A1 Static reactive compensator.
06/22/1983EP0081752A2 Device for maintaining the voltage of a single or multiphase AC supply mains submitted to changing loads at a constant level
06/21/1983US4389607 Synchronous motor control device
06/14/1983US4388585 Electrical power generating system
06/14/1983US4388578 Power factor controller
06/08/1983EP0080788A1 Pulsed thyristor trigger control circuit
06/07/1983US4387329 Three phase power-factor control system for A.C. induction motors
06/07/1983CA1147804A1 Load demand averaging system with large load anticipation
05/1983
05/31/1983CA1147388A1 Programmable electronic real-time load controller providing demand limit control
05/26/1983WO1983001759A1 Cogeneration
05/25/1983EP0079504A1 Protective relaying methods and apparatus
05/24/1983US4385241 A.C. Electricity power supply system and methods of and apparatus for load control thereon
05/18/1983EP0079169A1 A power controller
05/17/1983US4384243 Energy saving motor controller
05/17/1983CA1146628A1 Voltage-measuring device for controlling the rectifiers of current-converters in high- voltage direct-current transmission systems
05/04/1983EP0077803A1 A method for phasic sequential coupling of three-phase short-circuit generators
04/1983
04/26/1983CA1145393A1 Power factor control system for inverter-driven a-c induction motor
04/26/1983CA1145123A1 Pipe repair methods and apparatus using an electromagnetically exploded filament
04/20/1983EP0077118A1 Motor power factor controller with a reduced voltage starter
04/05/1983US4379325 System for bridging brief network failures
04/05/1983US4379258 Power control circuit for induction motor
04/05/1983CA1144076A1 Wind-driven generator apparatus and method of making blade supports therefor
03/1983
03/30/1983EP0075319A1 Control apparatus for d.c. power transmission system
03/23/1983EP0074910A1 Methods and devices for the AC electric supply of a load without interruption of the AC signal
03/22/1983US4377780 Means for damping mechanical torsional oscillations of an electric a.c. generator
03/22/1983CA1143467A1 System for recording electrical signals, displayed on a moving support
03/08/1983CA1142589A1 Energy conservation by improved control of bulk power transfers on interconnected systems
03/08/1983CA1142578A1 Power transmission overhead line
02/1983
02/23/1983EP0072598A1 Process for matching the demand for electrical energy to the supply of electrical energy as well as a circuit used for this purpose
02/08/1983CA1140992A1 Control for var generator with deadband
02/08/1983CA1140990A1 Low loss stabilizer
02/08/1983CA1140989A1 Protective circuit for clutchless parallel generating system
02/01/1983US4371829 Capacitor unit with a discharge resistor switch
01/1983
01/26/1983EP0070733A1 Overhead electric transmission systems
01/25/1983US4370723 Computerized energy management system
01/25/1983US4370562 Electric power distribution system
01/11/1983US4368502 Lead-lag load lockout control
01/11/1983US4368418 Apparatus for controlling high voltage by absorption of capacitive vars
01/11/1983CA1139367A1 Control for an electrical generating and distribution system, and method of operation
01/06/1983WO1983000071A1 Static reactive compensator
12/1982
12/29/1982EP0067978A2 Method and device for regulating the network reactive power in a high voltage direct current power transmission
12/29/1982EP0020509B1 Hybrid dual voltage transmission system
12/28/1982US4366388 Energy utilization circuit and method
12/28/1982US4366387 Wind-driven generator apparatus and method of making blade supports _therefor
12/21/1982US4365190 Automatic var controller
12/08/1982EP0066490A1 Frequency control device for a hydraulic power plant with a low head of water
12/07/1982US4363101 Computerized power demand control in an electrochemical plant
11/1982
11/30/1982US4361792 Digital induction motor control system
11/24/1982EP0065245A1 Variable speed induction motor drive
11/23/1982US4360881 Energy consumption control system and method
11/16/1982US4359678 Electronic reactive power regulator
11/11/1982WO1982003952A1 A method for phasic sequential coupling of three-phase short-circuit generators
11/09/1982US4358729 Thyristor driver controller for reactive loads and method of operation thereof
11/09/1982US4358719 Peak power limiter system for excavator
11/02/1982US4357665 Programmable electronic real-time load controller providing demand limit control
11/02/1982CA1134908A1 Apparatus for controlling electrical power consumption
10/1982
10/28/1982WO1982003734A1 Apparatus for controlling high voltage by absorption of capacitive vars
10/26/1982US4356441 Voltage regulator utilizing a static VAR generator with half period averaging and saturating type firing angle control
10/26/1982US4356440 Power factor correction system
10/26/1982US4356402 Engine generator power supply system
10/26/1982CA1134437A1 Method of and apparatus for enabling soft-failure of modular power converter systems, including rf generator systems, embodying switching components in the power conversion
10/19/1982US4355274 Load responsive control system for constant speed induction motor
10/19/1982US4355241 Means for damping subsynchronous oscillations in an AC power system including overload protection
10/12/1982CA1133585A1 Method for controlling power flow between an electrochemical cell and a power grid
10/12/1982CA1133584A1 Static var generator compensating control circuit and method for using same
10/12/1982CA1133582A1 Dynamic parallel inductive stabilizer for synchronous machines having torsional oscillations
10/05/1982US4353024 Control for VAR generator with deadband
10/05/1982CA1133056A1 Apparatus for sensing the reactive or real components of current
09/1982
09/28/1982US4352026 Multi-phase current balancing compensator
09/28/1982CA1132655A1 Dc transmission control system
09/21/1982CA1132193A1 Method for controlling operating conditions of d.c. transmission line and control device for effecting same
09/14/1982US4349879 Apparatus for controlling electrical power consumption
09/14/1982US4349744 System for operating multiple gas turbines for coordinated dead load pickup
09/14/1982CA1131702A1 Energy management system
09/07/1982US4348668 System for controlling power distribution to customer loads
09/07/1982US4348631 Static VAR generator
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