Patents
Patents for H02P 13 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output (981)
05/2010
05/12/2010CN201467058U Voltage regulating and energy saving circuit of power transformer
05/12/2010CN201467057U Electronic transformer on-load voltage regulation converter
05/12/2010CN1402098B Volt-second clamp circuit power supply device
05/12/2010CN101707469A Transformer operation control system based on RISC chip
05/05/2010EP2181499A1 Method and device to compensate for an asymmetrical dc bias current in a power transformer connected to a high voltage converter
05/05/2010CN101702511A Intelligent oil-immersed transformer
04/2010
04/29/2010WO2010045995A2 Method for parallel control of transformers having step switches
04/29/2010DE102008053193A1 Verfahren zur Parallelsteuerung von Transformatoren mit Stufenschaltern A method for parallel control of transformers with tap changers
04/28/2010CN201444617U Electromagnetic voltage-stabilizing and electricity-saving device
04/28/2010CN201444443U Transformer capable of controlling part of voltage
04/28/2010CN101010848B Method and device for electric power flow control in high-voltage grid
04/21/2010CN201440360U Reactor for accurate tuning used for passive filter
04/21/2010CN101697474A Remote automatic control method of high-voltage shut reactor considering safety of system voltage
04/14/2010CN1766667B Method for measuring switch time of multi-contact switch and switch time measuring circuit
04/14/2010CN101694808A Transcoding method for denary shift of transformer on-load tap-changer and transcoder
04/08/2010DE202009014788U1 Selbstregulierender Transformator Self-regulating transformer
04/07/2010CN101692577A 磁控电抗器 Magnetic chokes
04/01/2010DE102008049234A1 Electrical machine for use as e.g. electric motor, in motor vehicle, has winding functionally separated from electrical machine, where winding is partly arranged in recess of stator and/or in yoke of stator and/or at exterior of stator
03/2010
03/31/2010CN201435709Y Drive transformer circuit simultaneously providing control power supply
03/31/2010CN201435287Y Adjustable inductor used for resonance circuit
03/30/2010CA2422689C Wide ratio autotransformer-type current ranging
03/24/2010CN201430069Y Efficient and energy-saving transformer
03/16/2010CA2428475C Thyristor tap changer
02/2010
02/17/2010CN201409110Y Controllable transformer
02/10/2010CN201402985Y Low-voltage cabinet dry-type magnetically controlled reactor
02/04/2010DE102009031818A1 Dynamisches Auskopplungssystem Dynamic coupling system
02/03/2010CN201398172Y Novel MCR magnetic control box
01/2010
01/20/2010CN201387564Y Control circuit
01/20/2010CN101630937A Control method and control device of extra-high voltage controllable shunt reactor
12/2009
12/30/2009CN201374676Y Energy-saving control device of low-frequency transformer
12/30/2009CN101615882A Real-time closed-loop automatic control method for power transformer
12/23/2009CN201369705Y Transformer with partial winding voltage adjustment
12/23/2009CN101609742A Self-energy-taking rapid-response controllable reactor
12/17/2009DE102008028139A1 Electrical network i.e. three-phase electrical network, managing method for coupling power station with local network, involves increasing or decreasing load current in branches by changing current supplied to superconductive secondary coil
12/16/2009CN101604951A Method for adapting transformer for different voltage stages and system thereof
12/16/2009CN100570767C Controlled reactor with compensation winding
12/16/2009CN100570766C External electric supply controllable reactor
12/16/2009CN100570765C Self-feeding controllable transductor
11/2009
11/25/2009CN201352491Y Adjustable magnetic hollow filter reactor
11/19/2009WO2009137908A1 Voltage regulation system
11/19/2009CA2724382A1 Voltage regulation system
11/17/2009CA2174568C Interconnection system for transmitting power between electrical systems
11/12/2009DE102008015819B3 Regulator for regulating alternating voltage, has secondary winding comprising non-switchable section and multiple switchable sections, where number of windings of non-switchable section and switchable sections is equal
10/2009
10/28/2009CN201333582Y Winding coil current modulation welding machine
10/28/2009CN101567658A Rotating transformer exciting circuit based on sinusoidal pulse width modulation (SPWM)
10/28/2009CN100554037C Outer rear-view mirror unit for a motor-vehicle with shape memory actuating means
10/21/2009CN201332380Y Controlling and triggering device for magnetic valve type adjustable reactor
10/21/2009CN100553110C Controller for inductive load current
10/21/2009CN100553092C Device for minimizing transformer saturation caused by power transfer in a communication system
10/15/2009DE102008011609A1 Standby-circuit for transformer power supply unit in small device for household and industry, has switching device adjusting normal operation of transformer and standby-operation of transformer during existence of control signals
10/14/2009CN201328102Y Secondary-side control device of transformer
10/14/2009CN201328101Y Safe and reliable outer exciting magnetic control electric reactor device
09/2009
09/23/2009CN100544187C Intelligent type inductive coil electric parameter N steps tuning method as well as product
09/09/2009CN101527516A Voltage varying-regulating circuit, voltage varying-regulating set and intelligent electricity-saving device
09/08/2009US7586216 Redundant electrical brake and protection system for electric generators
09/02/2009CN201303309Y Multi-functional energy-saving transformer for oil pumping unit in oil field
08/2009
08/19/2009CN201294482Y Economic operation intelligent control device for distribution transformer
08/19/2009CN201293951Y Full-automatic AC voltage compensator
08/12/2009CN101507099A A drive system for a tap changer
07/2009
07/15/2009EP1325394B1 Wide ratio autotransformer-type current ranging
06/2009
06/25/2009DE102007021691A1 Method for controlling alternating voltage comprises using a secondary number of turns of a transformer which is proportional to the rotary angle of a controller and reversibly proportional to the potential difference along a turn
05/2009
05/27/2009CN201247683Y Controller for loading capacitance-regulating distribution transformer
05/27/2009CN101442288A Intelligent charger
05/27/2009CN101442261A Single-phase universal multifunctional intelligent electricity-saving device
05/26/2009CA2605280C Method and device for prevention and protection of electrical transformer against explosion and fire
05/06/2009EP2054998A1 A drive system for a tap changer
04/2009
04/30/2009US20090109712 Capacitor based energy storage
04/29/2009CN201230299Y Combination type multi-stage loaded capacity regulating box type transformer plant
04/29/2009CN201230213Y Magnet controlled voltage regulating reactive automatic compensation device
04/22/2009CN101416134A Universal input device for a tap changer
04/08/2009CN201219240Y Illumination energy-saving voltage stabilizer without bypass power-off
04/08/2009CN101403933A Full-automatic alternating current voltage compensator
03/2009
03/25/2009CN201213083Y Dry type magnet controlled reactor
03/18/2009CN101388277A Transformer and mutual inductance value regulating method
03/11/2009CN101383220A Dry magnet controlled reactor
03/05/2009WO2009026968A1 Method and device to compensate for an asymmetrical dc bias current in a power transformer connected to a high voltage converter
03/05/2009WO2009026629A1 Transformer control circuit
03/04/2009EP2031750A2 Switching device for switching between two voltage levels of a voltage provider
02/2009
02/25/2009CN101373143A Method for detecting LVDT sensor signal
02/18/2009CN201197131Y Magnetic controlled shunt reactor excitation system
01/2009
01/21/2009CN201185404Y Control device for intelligently monitoring and detecting power supply real time
01/14/2009CN101345508A Controllable afterflow method and excitation system of magnetic controlled shunt reactor
01/14/2009CN101345122A Direct current flux control type adjustable reactor
01/07/2009CN201178305Y Excitation branch over-voltage protection apparatus of magnetic control type parallel reactor
01/07/2009CN101340153A Arc extinguishing compensating type AC voltage regulating and stabilizing apparatus
12/2008
12/31/2008CN201174679Y Energy saving controller for loaded pressure regulating switch
12/31/2008CN201174600Y AC integrated power source apparatus of mobile communication base station
12/24/2008CN100446377C TCR controller
12/10/2008CN101320954A Combination type multilevel loaded capacity-regulation box type transformer station
11/2008
11/26/2008CN100438317C Method for controlling high voltage transformer of microwave oven
11/26/2008CN100437411C System for voltage stabilization of power supply lines
11/20/2008US20080286725 Electrical Power Converter for a Simulated Weapon Device
11/19/2008CN101309011A Magnet controlled voltage regulating imaginary power automatic compensation method and device
11/13/2008DE10331866B4 Einrichtung zur Steuerung einer Spulenanordnung mit elektrisch variierbarer Induktivität, sowie Schaltnetzteil Means for controlling a coil arrangement with electrically diversifiable inductance and switching power supply
11/05/2008EP1987409A2 Universal input device for a tap changer
11/05/2008CN201146469Y High-power stepless voltage-regulating apparatus
11/05/2008CN101299541A Supervoltage magnetic-controlled shunt reactor excitation equipment
10/2008
10/22/2008CN201138787Y Magnetic excitation switching apparatus for electricity driving vibration platform
10/15/2008CN201134780Y Novel electric voltage regulating equipment
10/15/2008CN101286723A Control method for parellel reactor with ultra-high/extra-high voltage magnetic control type
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