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)
10/1984
10/02/1984US4475139 Thyristor-switched capacitor apparatus
10/02/1984US4475076 Power tapping apparatus
09/1984
09/25/1984US4473792 Coupling an induction motor type generator to A.C. power lines
09/25/1984CA1175101A1 Power factor controller
09/19/1984EP0118418A1 Circuit arrangement for compensation of fast changing reactive power, in particular on the point of consumers, which generate harmonics.
09/18/1984US4472674 Method of static reactive power compensation
09/18/1984US4472641 Power supply apparatus
09/18/1984US4472640 Peak load limiting
09/11/1984US4471232 Method of and apparatus for controlling loads on an electrical power supply
09/04/1984US4470005 Static VAR generator having a thyristor circuit arrangement providing reduced losses
09/04/1984US4469998 Three-phase power factor controller with induced emf sensing
09/04/1984US4469997 Self generative PWM voltage source inverter induction motor drive
08/1984
08/28/1984US4468603 Load voltage-current displacement regulator motor control system
08/22/1984EP0116275A2 Reactive power compensator
08/21/1984US4467258 Power factor correction for variable speed drive
08/21/1984US4467216 Multiple fixed hydraulic geometry turbine control system
08/14/1984US4466030 Cassette loading/unloading apparatus for cassette tape recorder
08/14/1984US4465965 Power limiting apparatus
08/08/1984EP0115418A2 Power supply apparatus
08/07/1984US4464724 System and method for optimizing power shed/restore operations
08/07/1984CA1172312A1 Energy conserving drive system
07/1984
07/31/1984US4463432 Power controller using dual deadbands for reducing oscillatory load manipulations
07/31/1984CA1171907A1 Pulsed thyristor trigger control circuit
07/31/1984CA1171904A1 Converter control apparatus
07/25/1984EP0113872A1 Method of controlling thyristor switches for power factor correcting capacitors in an electrical network
07/24/1984CA1171460A1 Capacitor unit with a discharge resistor switch
07/24/1984CA1171458A1 Static var generators
07/19/1984WO1984002807A1 Direct current cable protection system
07/18/1984EP0113503A1 Three-phase power factor controller with induced EMF sensing
07/10/1984US4459529 Power factor control circuit for AC motors
07/10/1984US4459492 Method for operating a high voltage direct current transmission system including any desired number of transformer stations
06/1984
06/27/1984EP0111524A1 A system for electrically coupling a three phase generator
06/26/1984US4456832 Load management apparatus
06/21/1984WO1984002404A1 Method and apparatus for automatically setting the demand phase lag input to an induction-motor power factor controller
06/19/1984CA1169486A1 Induction generator system with switched capacitor control
06/12/1984US4454462 Power factor motor controller
06/12/1984CA1169125A1 Apparatus for controlling high voltage by absorption of capacitive vars
06/05/1984US4453122 Electrical balancing control for three-phase loads
05/1984
05/29/1984US4451777 Static VAR generation for transmission line compensation
05/23/1984EP0109096A1 Variable inductance device
05/22/1984CA1167921A1 Static var generator
05/22/1984CA1167920A1 Static var generator
05/15/1984US4449055 Circuit breaker control device
05/08/1984US4447783 Programmable RF power regulator (stabilizer)
05/08/1984US4447712 Heating system
05/08/1984CA1167100A1 Device for compensating the reactive electrical energy in a network
05/01/1984US4446359 Peak load control for an electric heating system
05/01/1984CA1166690A1 Static reactive power compensator
04/1984
04/25/1984EP0106371A2 Variable inductance for a three-phase circuit
04/24/1984US4445049 Inverter for interfacing advanced energy sources to a utility grid
04/24/1984CA1166310A1 A.c. electricity power supply system and methods of and apparatus for load control thereon
04/18/1984EP0105697A1 Electrical timing control switch
04/10/1984US4442364 Overhead electric transmission systems
04/03/1984US4441032 Converter control apparatus for parallel connected multi-terminal direct current system
03/1984
03/27/1984US4439718 Motor power control circuit for A.C. induction motors
03/20/1984US4438474 Current limiter and VAR generator utilizing a superconducting coil
03/20/1984US4438386 Static VAR generation for transmission line compensation of subsynchronous resonance
03/15/1984WO1984001059A1 Circuit arrangement for compensation of fast changing reactive power, in particular on the point of consumers, which generate harmonics
03/13/1984US4437052 Static VAR generator
03/06/1984CA1163323A1 Voltage compensation for an a-c network supplying a rapidly-changing load
03/06/1984CA1163322A1 Power factor correction system
03/06/1984CA1163316A1 Three phase power factor controller
02/1984
02/28/1984US4434376 Method and means for damping subsynchronous oscillations and DC offset in an AC power system
02/28/1984CA1162981A1 Method and apparatus for power load shedding
02/28/1984CA1162977A1 Thyristor-switched capacitor apparatus
02/21/1984US4433276 Three phase power factor controller
02/14/1984CA1162238A1 Power factor monitoring and control system
02/07/1984US4430607 Circuit arrangement
02/07/1984US4430579 Electrically operated, mechanically held electrical switching device
02/07/1984US4430573 Load control for energy converters
01/1984
01/25/1984EP0099043A2 System for the control of electric energy consumption, preferably domestic
01/17/1984US4426614 Pulsed thyristor trigger control circuit
01/17/1984US4426609 Power factor controller
01/10/1984CA1160283A1 Method and device for controlling a high-voltage d-c (hvdc) transmission installation with a short coupler
01/05/1984WO1984000083A1 A system for electrically coupling a three phase generator
01/03/1984CA1159899A1 Automatic device for synchronization of prime mover with electrical grid
12/1983
12/28/1983EP0096915A1 Power supply system comprising an a.c. voltage supply source, a load and a connecting cable between the source and the load
12/27/1983US4423477 Rectifier controller
12/27/1983US4423335 Energy controller and method utilizing bi-metal elements to adjust thermostat setting and to shed and restore controlled loads in prioritized order
12/27/1983CA1159522A1 System for coupling a capacitance to an ac voltage network
12/27/1983CA1159514A1 Static var generator with overvoltage protection for the switched capacitors thereof
12/27/1983CA1159513A1 Load management control apparatus with improved duty cycle operation
12/20/1983US4421992 Smart switch
12/20/1983US4421989 Power plant with a gas turbine for operation of a generator
12/20/1983CA1159103A1 Series capacitor protection with gapless arrestor blocks
12/06/1983US4419667 System for controlling power distribution to customer loads
12/06/1983US4419666 System for controlling power distribution to customer loads
12/06/1983US4419665 System for controlling power distribution to customer loads
12/06/1983US4419591 Multiterminal DC power transmission system
12/06/1983US4419589 Multi-stage electrical control system
11/1983
11/22/1983US4417196 Cord sets with power-factor control
11/22/1983US4417194 Induction generator system with switched capacitor control
11/22/1983US4417190 Control system for an induction motor with energy recovery
11/22/1983CA1157512A1 High voltage direct current transmission apparatus
11/10/1983WO1983003930A1 Power factor sensing motor controller
11/09/1983EP0093654A1 System for generating and distributing electric power for vehicles, particularly for air craft
11/01/1983US4413217 Power factor controller
11/01/1983US4413189 Demand reduction system for regulated electric utility distribution circuits
10/1983
10/25/1983US4412171 Circuit arrangement for damping power oscillations of synchronous generators in networks
10/25/1983US4412167 Polyphase power factor controller
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