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)
11/2010
11/04/2010US20100277960 Aircraft power supply and method of operating the same
11/03/2010EP2245640A1 Electrically variable inductor, associated tunable filter and methods
11/03/2010CN201622923U On-load oil conservator for transformer
11/03/2010CN201622922U Phase-shifting dry-type transformer for frequency conversion and voltage regulation
10/2010
10/28/2010WO2010122422A1 Tap charger
10/27/2010EP2244273A1 Tap changer
10/27/2010CN201616333U 一种节约电磁线的弧焊变压器 An economical magnet wire arc welding transformer
10/27/2010CN101872673A Three-phase induction regulator and winding method thereof
10/26/2010US7821374 Wideband planar transformer
10/20/2010CN101867393A Transmission device for transmitting data by striding over power line transformer
10/20/2010CN101867194A Wind park, method of correcting voltage imbalances, and wind turbine
10/20/2010CN101866740A Measuring contact sequence in a tap changer
10/20/2010CA2701063A1 Measuring contact sequence in a tap changer
10/14/2010WO2010115485A1 On-load tap changer comprising semiconductor switching elements
10/14/2010DE102009017197A1 Stufenschalter mit Halbleiter-Schaltelementen Position switch with semiconductor switching elements
10/14/2010DE102009017196A1 Stufenschalter mit Halbleiter-Schaltelementen Position switch with semiconductor switching elements
10/14/2010CA2758035A1 Tap changer with semiconductor switching elements
10/13/2010CN201608037U 单相无励磁分接开关 Single-phase circuit tap
10/13/2010CN201608036U 潜油泵变压器的调压结构及包含该调压结构的潜油泵变压器 Surge structure submersible pump and submersible pump transformer transformer structure that contains the regulator
10/13/2010CN101111982B Electric machine
10/12/2010USRE41814 Method and apparatus for providing selectable output voltages
10/06/2010CN201601034U 一种新型选择开关静触头 A new selector switch static contact
10/06/2010CN201601007U 无励磁分接开关支架 No circuit tap holder
10/06/2010CN201601006U 有载调压变压器的调压线圈结构 OLTC transformer coil structure regulator
10/06/2010CN201601005U 一种电力主变压器有载调压过负荷闭锁重动装置 A power main transformer load tap Verb overload lockout device
10/06/2010CN101325124B Tapping switch for load voltage-regulating transformer and voltage-regulating transformer using the same
09/2010
09/30/2010DE102009014333A1 Einrichtung zur Überwachung von Stufenschaltern Means for monitoring of tap changers
09/29/2010CN201594462U Voltage regulator
09/29/2010CN201594461U Voltage regulating transformer
09/29/2010CN201594460U Tertiary winding continuous voltage adjusting rectifier transformer
09/23/2010US20100241286 Drive system for a tap changer
09/22/2010CN201590341U Extraction-type contact contacting structure of on-load tap-changer
09/22/2010CN201590318U Changeable non-excitation shunting switch
09/22/2010CN201590317U Converter transformer used for polycrystalline silicon hydrogenation furnace
09/22/2010CN201590316U Regulating rectifier transformer with balance variable third winding
09/15/2010CN201584281U High-voltage booster transformer
09/15/2010CN201579519U Three-phase annular energy-saving dc electric welding machine
09/14/2010US7796005 Power source for plasma device
09/09/2010DE102009034627B3 Laststufenschalter mit Kraftspeicher OLTC with energy store
09/08/2010CN101826392A Voltage-regulating winding of shell transformer
09/08/2010CN101383233B Moving contact for tap switch
09/01/2010CN201570360U Electronic non-contact on-load capacitance regulation tapping switch
08/2010
08/26/2010WO2010094993A1 Pulse generator (versions)
08/25/2010CN201562573U Self-coupling low-voltage dual-voltage on-load voltage-regulating transformer
08/25/2010CN201562571U Non-excitation tapping switch structure suitable for two-legged single phase transformer
08/25/2010CN201562570U Transformer non-exciting regulation structure
08/25/2010CN201562569U On-chip center tap differential inductor
08/25/2010CN201562545U Winding wiring structure for self-coupled loaded voltage regulating transformer with double bodies
08/19/2010US20100207599 Electric motor drive unit for on-load tap-chargers
08/18/2010CN201556863U Main transformer on-load voltage regulation switch overhaul tool
08/18/2010CN201556518U 10-20 kV voltage conversion input dry type distribution transformer
08/18/2010CN101807475A Dual voltage switch
08/18/2010CN101807474A Tap changer switch
08/18/2010CN101807473A Parallel horn contact system
08/18/2010CN101807472A Vacuum tube group for replacing copper-tungsten contact group of on-load tap changer
08/18/2010CN101807471A Application of phased permanent magnet mechanism in on-load tap-changer and no-arc transferring on-load tap-changer
08/18/2010CN101807470A Vacuum on-load tap changer double-track cam disk
08/18/2010CN101807469A Lever system for driving vacuum bubble
08/18/2010CN101807468A Punch holder capable of accommodating vacuum bubbles
08/11/2010CN201549352U Insulating wrapping and fixing structure of tapping wire of wedge-shaped no-excitation tapping switch for transformer
08/11/2010CN101800116A analogue transformer
08/11/2010CN101799270A Transformer type angle sensing system
08/11/2010CN101299382B Directly-mounting type bar shape wiring block and slide tapping switch using the same
08/04/2010CN1933055B Non-field cage-shape tap changer for transformer
07/2010
07/28/2010CN101789310A Method for manufacturing static contact and insulation strip composite piece of non-excited magnetic strip-type tap switch
07/28/2010CN101354954B Loaded voltage transformer with angle-connecting high-voltage coil using reactance type on-load tap-changer
07/21/2010CN201532843U Transformer with segmental structure
07/21/2010CN201532842U Transformer structure of double-voltage S11 oil-immersed distribution transformer
07/21/2010CN201532203U Sliding hammer impacting type acoustic shock sensor
07/20/2010US7759913 Apparatus and methods for controlling operation of a single-phase voltage regulator in a three-phase power system
07/14/2010CN201527912U Fine adjusting contact bridge and tap selector
07/14/2010CN201527895U Connecting molding device of transformer nonexcitation resolving switch lead wire
07/07/2010CN201522920U Multi input voltage transformer
07/01/2010WO2010072623A1 Medium-/low-voltage transformer having tap changing, and method for the operation thereof
06/2010
06/30/2010CN101325123B Method for making high-power switch power supply plane magnetic element
06/24/2010DE102008064487A1 Mittel-Niederspannungstransformator mit Stufenschaltung Medium-low voltage transformer tap change
06/24/2010DE102008064485A1 Stufenschalter für Mittel-Niederspannungstransformatoren Stage switch for medium-low voltage transformers
06/23/2010CN201514848U Ring structure magnetic saturation voltage stabilizing transformer for power distribution equipment
06/23/2010CN201514846U Ganged linear voltage-regulating non-excitation tap switch
06/23/2010CN201514845U Ganged voltage-regulating non-excitation tap switch
06/23/2010CN201514844U Switch for on-load adjusting capacity of capacity adjustable transformer in power network of 20 KV and below
06/23/2010CN201510795U On-load tap changer on-line oil-filtering integrative machine
06/23/2010CN101752070A Vacuum tube switching core used for M type on-load tap-changer
06/23/2010CN101752068A 220,000V-grade auto-OLTC (on-load tap changer)
06/23/2010CN101752066A Inductor module and circuit module
06/23/2010CN101383222B Externally hanging combined loaded tap-changer
06/17/2010WO2010067649A1 Variable inductor
06/16/2010CN201508761U Current-limiting reactor capable of changing inductance value of primary winding through controlling on-off of auxiliary winding
06/16/2010CN201508760U On-load tap changer of high voltage D connection
06/16/2010CN101743602A Method for influencing the magnetic coupling between two bodies at a distance from each other and device for performing the method
06/16/2010CN101740212A Single-phase double-on-load voltage-regulating transformer
06/16/2010CN101740211A Voltage regulation and rectification transformer with balance transformer third winding
06/09/2010CN201503761U Non-excitation strip tap switch
06/09/2010CN201503760U Oil immersed type vacuum on-load tap-changer
06/02/2010CN201498344U No-excitation caged positive and reverse change-over voltage tapping switch used in transformer
06/02/2010CN201498343U No-excitation cage type tapping switch used in transformer
06/02/2010CN201498342U No-excitation tapping switch used in transformer
06/02/2010CN201498341U Single-phase pressure-adjusting MCR
06/02/2010CN201498321U U1 type combined magnetic core with finely adjustable air gap
06/02/2010CN101383220B Dry magnet controlled reactor
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