| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 05/25/2011 | CN101174760B Gas insulation switch device and voltaic arc damage detecting method |
| 05/24/2011 | US7948336 Mold cased circuit breaker |
| 05/24/2011 | US7946197 Breaker racking tool |
| 05/24/2011 | CA2722212A1 Breaker |
| 05/19/2011 | US20110114602 Contactor assembly for switching high power to a circuit |
| 05/18/2011 | CN201838507U Vacuum circuit breaker and tripping cushioning device thereof |
| 05/18/2011 | CN201838506U Combined device of energy storage part and opening and closing part of spring operating mechanism |
| 05/18/2011 | CN201838505U Vacuum arc extinguish chamber |
| 05/18/2011 | CN201838504U 真空继电器 Relays |
| 05/18/2011 | CN102067260A Controller unit for switching device |
| 05/18/2011 | CN102067259A Controller unit for switching device |
| 05/18/2011 | CN102067258A Tripping assembly for switching device |
| 05/18/2011 | CN102064038A Intelligent circuit breaker with phase selection function |
| 05/18/2011 | CN102064026A Electric contact for vacuum valve and vacuum interrupter using the same |
| 05/17/2011 | US7943881 Grounding disconnector and a method of manufacturing such a grounding disconnector |
| 05/17/2011 | CA2580109C Circuit interrupting device with a turnbuckle and weld break assembly |
| 05/12/2011 | WO2011055564A1 Switch device operating mechanism |
| 05/12/2011 | WO2011054870A1 Use of specific composite materials as extinguishing material for electric arcing in electric apparatuses |
| 05/12/2011 | WO2011054736A1 A spring operated actuator for an electrical switching apparatus |
| 05/12/2011 | WO2011054728A1 A spring operated actuator for an electrical switching apparatus |
| 05/12/2011 | DE102009060132B3 Stufenschalter mit Polungsschalter an einem Regeltransformator Step switch with polarity to a control transformer |
| 05/12/2011 | CA2779548A1 A spring operated actuator for an electrical switching apparatus |
| 05/11/2011 | CN201829815U Small intelligent vacuum ring-network cabinet |
| 05/11/2011 | CN201829412U Gas insulated switchgear (GIS) high-voltage alternating current vacuum circuit breaker operation mechanism |
| 05/11/2011 | CN201829411U Permanent-magnet vacuum circuit breaker |
| 05/11/2011 | CN201829410U Long-service-life vacuum arc-extinguishing chamber for high-and low voltage switches |
| 05/11/2011 | CN201829409U Installation barrel for vacuum arc extinguishing chamber |
| 05/11/2011 | CN201829408U GIS high-voltage alternating-current vacuum circuit breaker |
| 05/11/2011 | CN201829407U Novel circuit breaker capable of being used for underground laying |
| 05/11/2011 | CN201829406U Tangential annular flow protective device of outdoor high-voltage alternating current isolation switch |
| 05/11/2011 | CN201829388U Transverse clamping device for vacuum circuit breaker |
| 05/11/2011 | CN102055137A Bus isolating switch with fuse protector |
| 05/11/2011 | CN102054622A Temperature measuring medium voltage circuit breaker |
| 05/11/2011 | CN102054621A Novel high-voltage vacuum circuit breaker |
| 05/11/2011 | CN101459012B Permanent magnet linear motor operation mechanism for high voltage circuit breaker |
| 05/11/2011 | CN101236858B Vacuum arc-extinction porcelain shell component and its making technology |
| 05/11/2011 | CN101226846B Gas-insulated switch |
| 05/11/2011 | CN101142649B Electric supply circuit, switch actuating device and method for operating said switch actuating device |
| 05/10/2011 | US7939777 Vacuum interrupter chamber |
| 05/05/2011 | WO2011052206A1 Tank-type vacuum interrupter |
| 05/05/2011 | WO2011052109A1 Vacuum valve |
| 05/05/2011 | WO2011052011A1 Electromagnet device and switching device using electromagnet device |
| 05/05/2011 | WO2011052009A1 Electromagnetically operated switching device |
| 05/05/2011 | WO2011050832A1 An hvdc breaker and control apparatus for controlling an hvdc breaker |
| 05/05/2011 | US20110100958 Features to limit the exhaust debris exiting a circuit breaker |
| 05/05/2011 | DE102010005466B3 Vakuumschaltröhre Vacuum interrupter |
| 05/04/2011 | EP2317529A1 A spring operated actuator for an electrical switching apparatus |
| 05/04/2011 | EP2317528A1 A spring operated actuator for an electrical switching apparatus |
| 05/04/2011 | EP2316122A1 High-voltage power switch with a switch gap |
| 05/04/2011 | CN201820702U Opening limit device for vacuum breaker |
| 05/04/2011 | CN201820701U Vacuum circuit breaker of permanent magnet mechanism |
| 05/04/2011 | CN201820700U Operating mechanism of vacuum circuit breaker |
| 05/04/2011 | CN201820699U One-way overrunning clutch of spring actuation mechanism of vacuum circuit breaker |
| 05/04/2011 | CN201820698U Solid sealed pole post |
| 05/04/2011 | CN201820697U Vacuum switch tube for outdoor circuit breaker |
| 05/04/2011 | CN201820696U High-voltage vacuum circuit breaker |
| 05/04/2011 | CN201820695U Sealed pole column |
| 05/04/2011 | CN201820694U High-voltage alternating-current vacuum circuit breaker on outdoor column |
| 05/04/2011 | CN201820693U 24kV outdoor high-voltage alternating-current vacuum isolation load switch |
| 05/04/2011 | CN201820692U 固体绝缘高压断路器极柱 Solid insulated high voltage circuit breaker poles |
| 05/04/2011 | CN201820691U High-voltage vacuum circuit breaker with function of reducing noise |
| 05/04/2011 | CN201820690U High-voltage gas insulation load switch |
| 05/04/2011 | CN102047366A Vacuum interrupter |
| 05/04/2011 | CN102047365A Gas insulation switch |
| 05/04/2011 | CN102044376A Low-voltage universal vacuum circuit breaker |
| 05/04/2011 | CN102044375A Vacuum switch tube |
| 05/04/2011 | CN102044354A Method for manufacturing post terminal part of circuit breaker |
| 05/04/2011 | CN101540480B Vacuum-load isolating switch-fuse combined electrical apparatus |
| 05/04/2011 | CN101409175B Combined high-voltage load switch and high-voltage switchgear thereof |
| 05/03/2011 | US7936549 State grasp device, and switching control device of power switching apparatus employing the state grasp device |
| 05/03/2011 | US7935907 Contact system for a short-circuiting device in a medium-voltage or high-voltage switchboard plant |
| 04/28/2011 | WO2011047428A1 Remote isolation system, method and apparatus |
| 04/28/2011 | WO2011017210A3 Mechanically interlocked transfer switch |
| 04/28/2011 | DE102009053901B3 Ventilanordnung Valve assembly |
| 04/28/2011 | DE102009007474B4 Vakuumschaltröhre Vacuum interrupter |
| 04/27/2011 | EP2313904A1 High-voltage isolator with field control element |
| 04/27/2011 | EP2313901A1 Cam disc and spring deflection switch for a spring-loaded drive and spring-loaded drive |
| 04/27/2011 | CN201813298U Novel electromagnetic driver and device using same |
| 04/27/2011 | CN201812739U Vacuum arc chute |
| 04/27/2011 | CN201812738U Insulation cylinder for 24kV vacuum circuit breaker |
| 04/27/2011 | CN201812737U Embedded pole |
| 04/27/2011 | CN201812736U Bipolar vacuum circuit breaker for gas-insulated metal-enclosed switching device |
| 04/27/2011 | CN201812735U Vacuum circuit breaker and conductive clip structure |
| 04/27/2011 | CN201812734U Three-phase three-station cable joint isolated overall-shield vacuum circuit breaker |
| 04/27/2011 | CN201812733U Fully-shielded touching vacuum circuit breaker used on outdoor column |
| 04/27/2011 | CN201812732U Fully shielding touch vacuum circuit breaker suitable for being buried under ground |
| 04/27/2011 | CN201812731U Decussate fully-screened vacuum circuit breaker |
| 04/27/2011 | CN201812730U Insulation bush of load switch |
| 04/27/2011 | CN201812729U 252kVGIS three-phase mechanical linkage circuit breaker transmission device |
| 04/27/2011 | CN201812728U Driving device of 252kV GIS (Gas Insulated Sub-Station) breaker |
| 04/27/2011 | CN201812690U Three-station mechanism for realizing quick tripping |
| 04/27/2011 | CN102037534A Circuit breaker with high speed mechanically-interlocked grounding switch |
| 04/27/2011 | CN102037533A Circuit breaker drive |
| 04/27/2011 | CN102034651A Fully-integrated spring operating mechanism for high-voltage alternating-current circuit breaker |
| 04/27/2011 | CN102034643A Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch |
| 04/27/2011 | CN102034642A Intelligent vacuum circuit breaker |
| 04/27/2011 | CN102034641A Vacuum switch of 10kv circuit |
| 04/27/2011 | CN102034640A Circuit breaker with parallel rated current paths |
| 04/27/2011 | CN102034622A Half shaft and fastening arm fastening mechanism for switch operating mechanism |
| 04/26/2011 | US7932476 Transmission for an electrical circuit breaker |