Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 29 - Variable transformers or inductances not covered by group
Patents for H01F 29 - Variable transformers or inductances not covered by group (3,889)
06/2010
06/02/2010CN101154498B Device and method for controlling changing operation of on-load tap changer
05/2010
05/26/2010EP2189990A1 Single phase winding module and arrangement of single phase winding modules
05/26/2010CN201489980U Rack large-corner quick mechanism of on-load tap changer
05/26/2010CN201489979U Load conversion main contact mechanism of oil immersed vacuum on-load tap changer
05/26/2010CN201489978U Variable parallel reactor
05/26/2010CN201489964U Large-capacity arc furnace transformer
05/20/2010WO2010056122A1 Current limiter
05/20/2010US20100123452 Power supply system and method of controlling power supply system
05/19/2010CN201478087U Switch changeover tool with transmission mechanism on-load switch
05/19/2010CN101278249B Method and device for controlling of a magnetic flux
05/19/2010CN101009155B Tap switching device when loading
05/12/2010CN201467554U Lighting control power saver
05/12/2010CN201467057U Electronic transformer on-load voltage regulation converter
05/12/2010CN201465775U Rectifying transformer for main modulation common box separating assembly graphitizing furnace
05/12/2010CN201465772U Structure of T-shaped wiring traction transformer
05/12/2010CN201465769U Iron core reactor with continuously adjustable inductance
05/12/2010CN201465768U Iron core reactor with adjustable inductance
05/12/2010CN201465767U Epoxy-resin filled Scott dry-type transformer with shunting taps
05/12/2010CN201465766U On-load tap switch gear transcoder for transformer
05/12/2010CN201465709U Variable resonant inductor
05/12/2010CN1905094B Non-exciting reversing change-over voltage regulating strip-shape tap switch
05/11/2010US7714683 Inductance device, filter device comprising the same, and noise filter comprising the same
05/05/2010CN1988074B Carbon brush conducting structure of autotransformer
05/05/2010CN101702367A Transductor used for direct-current current transformation valve
05/04/2010US7710097 Power supply with reduced power losses during standby mode
04/2010
04/28/2010CN201444443U Transformer capable of controlling part of voltage
04/28/2010CN201444441U On-load tap changing oil immersion type power transformer
04/28/2010CN201444440U Bar-shaped non-excitation tapchanger control mechanism
04/28/2010CN201444438U Arrangement structure of high-voltage tapping lead wires of transformer
04/28/2010CN101699592A Main current carrying contact system
04/28/2010CN101699583A On-load tap changing overload locking-out repeating device of electric power main transformer
04/22/2010WO2010043546A1 High frequency ignition system
04/21/2010CN201440371U 10KV to 20KV adjustable-type combinational box-type transformer
04/21/2010CN201440364U Online oil filter with on-load tap switch
04/21/2010CN1725983B System of heating a biological site in a patient's body
04/21/2010CN101697312A Low-voltage dual-voltage on-load-tap-changing auto-transformer
04/21/2010CN101697310A Winding connection structure for double-active-part on-load-tap-changing auto-transformer
04/21/2010CN101197207B Non-combustible on-load tap-switch
04/14/2010EP1358499B1 Tap changer monitoring
04/14/2010CN201438697U Power distributor for medium-voltage carrier communication
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
04/07/2010CN101692398A high-voltage booster transformer
04/07/2010CN101692395A Linked linear voltage regulation non-excitation tap switch
04/07/2010CN101692394A Linked voltage regulation non-excitation tap switch
04/07/2010CN101692393A Switch of loaded-regulating capacity regulating transformer in power grid of 20KV and below
04/07/2010CN101692392A Non-excitation cage-type positive and negative voltage regulation tap switch for transformer
04/01/2010DE102008049432A1 Leistungsschalter und Stromwandler für einen Leistungsschalter Circuit breaker and current transformer for a circuit breaker
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
03/31/2010CN201435299Y Mining flameproof on-load voltage regulation dry-type transformer
03/30/2010CA2422689C Wide ratio autotransformer-type current ranging
03/25/2010WO2010033759A1 Binary voltage regulator
03/24/2010CN201430069Y Efficient and energy-saving transformer
03/24/2010CN201430068Y Non-excitation combined strip-type tap switch
03/24/2010CN101677029A Design method of high tension coil of dry on-load coarse and fine voltage regulation transformer
03/17/2010CN201425882Y On-load tap switch main contact structure with intermittent movement
03/16/2010CA2428475C Thyristor tap changer
03/10/2010CN201422078Y Three-stage intelligent regulating transducer device used for energy-saving elevator safety protection power supply
03/10/2010CN201421772Y High-frequency and high-power adjustable inductance coil device
03/10/2010CN101667487A Optical control load switcher
03/04/2010WO2010022751A1 Method for switching without any interruption between winding taps on a tap-changing transformer
03/04/2010WO2010022750A1 Tap switch with semiconductor switching elements
03/04/2010CA2735031A1 Method of uninterrupted changeover between winding taps of a tapped transformer
03/04/2010CA2735029A1 On-load tap changer with semiconductor switching elements
03/03/2010CN101661834A Off circuit tap changer for transformer
03/03/2010CN101661833A Excitation-free cage type tapping switch for transformer
03/03/2010CN101661832A Controllable reactor with air gap
02/2010
02/25/2010DE202008013649U1 Regelbarer Dreiphasen-Schweißtransformator Adjustable three-phase welding transformer
02/24/2010EP2156446A1 Method for influencing the magnetic coupling between two bodies at a distance from each other and device for performing the method
02/24/2010CN201413765Y Transformable off-circuit tap switch
02/24/2010CN201413764Y Transmission device used in tapping switch of transformer
02/18/2010US20100039200 Magnetic components and methods of manufacturing the same
02/17/2010CN101651029A Vacuum vessel switching core used by on-load tap-changer
02/17/2010CN101651028A Solid insulating transformer
02/10/2010CN201402727Y No-load excitation conversion voltage-regulating tap switch
02/03/2010CN201398172Y Novel MCR magnetic control box
02/03/2010CN101640117A Wide-range continuously adjustable air-core reactor
02/03/2010CN101640116A Mine explosion-proof type loaded voltage-adjusting dry type transformer
02/03/2010CN101640115A On-load tapping switch hanger
02/03/2010CN100587863C Change action monitoring device for on-load tap changers
01/2010
01/27/2010CN201392725Y Dual-power transformer
01/27/2010CN201392719Y Novel three-winding power transformer
01/27/2010CN201392708Y Automatic oil recharging system
01/20/2010CN201387800Y Transformer
01/20/2010CN201387799Y Adjustable iron-core reactor
01/20/2010CN101630584A Differential inductor of on-chip center tap
01/13/2010CN201383432Y Unloading-structure non-excitation tapping switch
01/13/2010CN201383431Y Non-excitation tapping switch with contact isolating device
01/13/2010CN201383430Y Non-excitation tapping switch with movable contact guiding device
01/13/2010CN201383429Y Unloading type non-excitation tapping switch
01/13/2010CN201383428Y Non-excitation tapping switch with contact isolating device
01/06/2010CN101620926A Multi-carbon-brush voltage regulator
12/2009
12/30/2009EP2139089A1 Transformation device for automatically adjusting voltage of three-phase power supply
12/30/2009EP2139088A1 Core-saturated superconductive fault current limiter and control method of the fault current limiter
12/23/2009WO2009152662A1 Self power-acquiring quickly responsive controllable electric reactor
12/23/2009CN201369705Y Transformer with partial winding voltage adjustment
12/23/2009CN201369212Y On-load tap switch on-line oil cleaning device
12/23/2009CN101609742A Self-energy-taking rapid-response controllable reactor
12/23/2009CA2727976A1 Self power-acquiring quick-responsive controllable reactor
12/16/2009CN201364808Y Non-excitation cylindrical tap-changer
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