| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 04/03/2013 | CN202856156U 252kV electronic current transformer combined type high voltage isolating switch |
| 04/03/2013 | CN202855614U Improved mechanical interlocking operating mechanism |
| 04/03/2013 | CN202855613U Novel clutch transmission device for disconnecting switch |
| 04/03/2013 | CN202855612U High voltage isolation switch with good stability performance |
| 04/03/2013 | CN202855611U Extra-high-voltage disconnector double-spring balance adjustment mechanism |
| 04/03/2013 | CN202855610U Extra-high-voltage disconnector electric operating mechanism |
| 04/03/2013 | CN202855609U Single-arm folding insertion-type ultra-high-voltage direct-current disconnector |
| 04/03/2013 | CN202855608U Side-installed type isolating switch structure |
| 04/03/2013 | CN202855607U Three-position combination switch |
| 04/03/2013 | CN202855606U Three-column horizontal double-fracture turnover-type outdoor high-voltage direct-current disconnector |
| 04/03/2013 | CN202855605U Three-column horizontal double-fracture turnover-type outdoor high-voltage alternating-current disconnector |
| 04/03/2013 | CN202855601U Single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch |
| 04/03/2013 | CN103026439A Drive for a switch disconnector with C O switching capacity |
| 04/03/2013 | CN103021721A Three-position switch spring operating mechanism |
| 04/03/2013 | CN103021720A Electric connecting mechanism for outdoor alternating-current high-voltage disconnector |
| 04/03/2013 | CN103021719A Ice-melting isolating switch |
| 04/03/2013 | CN103021718A Three-position switch operating mechanism with anti-overshoot device |
| 03/27/2013 | EP2573785A1 Three-phase electrical short-circuiting device with pyrotechnic actuator |
| 03/27/2013 | CN202839436U Contact connector of isolating switch |
| 03/27/2013 | CN202839435U Five-prevention operating mechanism for high-tension switch cabinet |
| 03/27/2013 | CN202839434U Modified disconnector for electrified railway continuous transmission lines |
| 03/27/2013 | CN202839433U Transmission connecting rod of isolating switch |
| 03/27/2013 | CN202839432U Wiring board of high-voltage isolating switch |
| 03/27/2013 | CN202839431U High-voltage isolator |
| 03/27/2013 | CN202839430U A 10kV outdoor isolation switch structure |
| 03/27/2013 | CN202839429U Manually operated mechanism for disconnecting switch |
| 03/27/2013 | CN202839428U Disconnecting switch for subways |
| 03/27/2013 | CN202839427U Electric grounding switch |
| 03/27/2013 | CN103000438A Disconnector and operating mechanism shell thereof |
| 03/27/2013 | CN103000437A Closing mechanism and disconnector comprising same |
| 03/27/2013 | CN103000395A Screwing-type special drawing head and method for switching high voltage isolator |
| 03/27/2013 | CN101894701B 220KV vertical opening type isolating switch shunting device and method thereof |
| 03/20/2013 | CN202816772U Switch auxiliary device |
| 03/20/2013 | CN202816771U Track traffic earthing device operating mechanism |
| 03/20/2013 | CN202816770U Track traffic grounding device |
| 03/20/2013 | CN202816769U Indoor high-voltage isolation switch earthing device |
| 03/20/2013 | CN202816768U Grounding knife of track traffic grounding device |
| 03/20/2013 | CN202816767U Vertical contact grounding switch |
| 03/20/2013 | CN202816766U High-speed rail safety detection grounding device |
| 03/20/2013 | CN102983037A Earth switch interlocking device applied to high-voltage switchgear |
| 03/20/2013 | CN102983036A Transmission device used for multi-station switch single phase and three-phase mechanical linkage |
| 03/20/2013 | CN102983035A Three phase earthing switch structure driven by duplex pull rods and distributed in I shape |
| 03/19/2013 | CA2736031C High current switch and method of operation |
| 03/13/2013 | CN202796696U Switch cabinet lower door interlocking mechanism |
| 03/13/2013 | CN202796695U Isolating switch protective sleeve |
| 03/13/2013 | CN202796694U 10 KV outdoor high voltage disconnecting switch |
| 03/13/2013 | CN202796693U High-voltage isolation switch |
| 03/13/2013 | CN202796692U Improved isolation switch unit |
| 03/13/2013 | CN202796691U Ice melting isolating switch with lightning protection function |
| 03/13/2013 | CN102969189A Sealing mechanism and operation tool for grounding switch mechanical lock relieving device |
| 03/13/2013 | CN101118815B Medium or high voltage electrical equipment control device and method |
| 03/12/2013 | CA2736004C Electrical connection with reduced bending forces and method for reducing bending forces in such connection |
| 03/07/2013 | WO2013029334A1 Movable and static contact connection assembly and high-voltage isolation grounding switch |
| 03/07/2013 | US20130056339 Electrical cut-off device with high making capacity |
| 03/06/2013 | EP2565897A1 Switchgear and switchgear operating method |
| 03/06/2013 | CN202772029U Isolating switch mechanism |
| 03/06/2013 | CN202772028U High-voltage power distribution cabinet maintenance back door electrical lockout circuit |
| 03/06/2013 | CN202772027U Novel high voltage isolation switch |
| 03/06/2013 | CN102959668A Compact ground isolator |
| 03/06/2013 | CN102956396A Compact type grounding isolating three-station switch |
| 03/06/2013 | CN101964269B Conversion-drum three-position isolating mode and isolating switch |
| 03/06/2013 | CN101816057B Fused load disconnector with double contact guard for variable connecting direction |
| 03/06/2013 | CN101764374B Solid insulation fully closed combined electrical apparatus |
| 02/28/2013 | WO2013026518A1 Drive apparatus for a multi-position switch |
| 02/28/2013 | DE102011111183A1 Antriebsvorrichtung für einen Mehrstellungsschalter Driving apparatus for a multi-position switch |
| 02/28/2013 | CA2787726A1 Integrated safety disconnects for power systems |
| 02/27/2013 | CN202758800U Three-position electric operating mechanism |
| 02/27/2013 | CN202758799U Isolation switch |
| 02/27/2013 | CN202758798U Upper end head of load switch |
| 02/27/2013 | CN202758797U Contact structure of isolation switch |
| 02/27/2013 | CN202758796U Load switch |
| 02/27/2013 | CN202758795U Safe and reliable direct-current isolation switch |
| 02/27/2013 | CN102945766A Three-position operation device used for inflatable cabinet |
| 02/26/2013 | US8384395 Circuit for controlling temperature and enabling testing of a semiconductor chip |
| 02/26/2013 | US8384392 Methods and apparatus for continuous ground fault self test |
| 02/26/2013 | CA2610007C Three-pole apparatus for a medium or high voltage cubicle and associated cubicle comprising such a three-pole apparatus |
| 02/21/2013 | US20130043881 Apparatus and method for identifying high risk non-ceramic insulators (nci) with conductive or high permittivity defects |
| 02/20/2013 | EP2559047A1 Switching device |
| 02/20/2013 | CN202749287U Isolating switch |
| 02/20/2013 | CN202749286U Operation mechanism lubricating device of isolating switch |
| 02/20/2013 | CN102938345A Three-position isolating-grounding switch |
| 02/20/2013 | CN102938344A Disconnector misoperation prevention device |
| 02/20/2013 | CN102938343A Locating pin of isolating switch |
| 02/20/2013 | CN102054619B High-voltage electric isolating switch contact |
| 02/19/2013 | US8378241 Self-locking connector clip |
| 02/14/2013 | US20130037399 Folding high voltage electric power switch |
| 02/13/2013 | CN202736820U Isolation switch with high locking stability |
| 02/13/2013 | CN202736819U Outdoor AC high-tension disconnecting switch |
| 02/13/2013 | CN202736818U High-voltage isolation electric switch device |
| 02/13/2013 | CN202736817U High-voltage isolation/grounding switch device |
| 02/13/2013 | CN202736816U High voltage isolating/grounding switch device |
| 02/13/2013 | CN202736815U Intelligent disconnecting switch with electronic transformer |
| 02/13/2013 | CN202736814U Motor-driven operating mechanism of disconnecting switch |
| 02/13/2013 | CN202736813U Clutch for three-position isolating switch operating mechanism of inflatable cabinet |
| 02/13/2013 | CN202736812U Disconnector specially for connection between DC ice melting device and converter station ice melting line |
| 02/13/2013 | CN202732947U Sealing and protecting structure for operation bearing base for high voltage isolator switch and grounding switch |
| 02/13/2013 | CN102931021A Three-phase horizontal line-arrayed isolating switch with self-compacting earthing switch |
| 02/13/2013 | CN102931020A Disconnecting switch with insulator crossbar |
| 02/13/2013 | CN102054620B Electric and manual operating mechanism of grounding switch in medium and high voltage switch equipment |
| 02/07/2013 | WO2013017909A1 Load break switch |