| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 07/12/2012 | US20120175347 Vacuum Switch With Pre-Insertion Contact |
| 07/12/2012 | US20120175346 Embedded pole part with an isolating housing made of thermoplastic material |
| 07/12/2012 | US20120175345 Electromagnetic contractor |
| 07/12/2012 | US20120175344 Magnetic contactor |
| 07/12/2012 | DE102012000272A1 Elektromagnetische Schaltvorrichtung The electromagnetic switching device |
| 07/12/2012 | DE102011017306A1 Hochspannungsschaltanlage mit gasförmiger Isolation High-voltage switchgear with gaseous insulation |
| 07/11/2012 | EP2474991A1 Switch unit and switchgear |
| 07/11/2012 | EP1709654B1 Switching device |
| 07/11/2012 | CN202333977U Environment-friendly type intelligent integral switch |
| 07/11/2012 | CN202332716U 内置冷阴极规管的真空灭弧室真空度测量装置 Built-in cold cathode regulatory vacuum interrupter vacuum measurement device |
| 07/11/2012 | CN202332715U 手动合闸机构 Manual closing mechanism |
| 07/11/2012 | CN202332714U 真空断路器闭锁驱动机构 Vacuum circuit breaker lockout drive mechanism |
| 07/11/2012 | CN202332713U 用于真空负荷开关的面板操作机构 Panel for vacuum load switch operating mechanism |
| 07/11/2012 | CN202332712U 真空接触器的分闸机构 Vacuum contactor opening mechanism |
| 07/11/2012 | CN202332711U 真空接触器的合闸保持机构 Vacuum contactor closing retaining mechanism |
| 07/11/2012 | CN202332710U 真空接触器的电动合分闸装置 Vacuum contactors electric sub-gate device |
| 07/11/2012 | CN202332709U 一种户外高压真空断路器用隔离开关 Kind of outdoor high voltage vacuum circuit breaker with isolation switch |
| 07/11/2012 | CN202332708U 一种触发真空断路器机构卸载的电磁线圈 An electromagnetic coil vacuum circuit breaker trigger mechanism uninstall |
| 07/11/2012 | CN202332707U 真空断路器的单模块操动机构 Single module actuator vacuum circuit breaker |
| 07/11/2012 | CN202332706U 盘型叠式旋磁纵吹真空灭弧室 Rotating magnetic disk-type stacked vertical blow vacuum interrupter |
| 07/11/2012 | CN202332705U 盘式旋磁横吹真空灭弧室 Disc gyromagnetic cross blowing vacuum interrupter |
| 07/11/2012 | CN202332704U 盘式旋磁纵吹真空灭弧室 Disc gyromagnetic vertical blow vacuum interrupter |
| 07/11/2012 | CN202332703U 盘型叠式旋磁真空灭弧室 Stacked rotating magnetic disk type vacuum interrupter |
| 07/11/2012 | CN202332702U 一种真空负荷开关用隔离刀装置 A vacuum load isolation switch with a knife device |
| 07/11/2012 | CN202332701U 一种中置式断路器框架安装结构 A medium-mounted circuit breaker frame mounting structure |
| 07/11/2012 | CN202332700U 高压断路器的固封极柱 High voltage circuit breaker solid seal pole |
| 07/11/2012 | CN202332699U 一种固定真空断路器真空泡的绝缘支架 A fixed-vacuum breaker vacuum insulation foam scaffold |
| 07/11/2012 | CN202332698U 固封极柱式真空断路器 Solid letters column vacuum circuit breakers |
| 07/11/2012 | CN202332697U 一种用于变电站的户内高压真空断路器 An indoor substation high voltage vacuum circuit breaker |
| 07/11/2012 | CN202332696U 一种户外高压交流自动重合器 Kind of outdoor high-voltage AC automatic recloser |
| 07/11/2012 | CN202332695U 一种真空灭弧室固封极柱 A vacuum interrupter embedded pole |
| 07/11/2012 | CN202332694U 一种真空灭弧室固封极柱的绝缘密封装置 A vacuum interrupter solid seal insulation seals pole in |
| 07/11/2012 | CN202332693U 用于光控模块化多断口真空断路器的光纤复合支柱绝缘子 Fiber composite post insulator for light control modular multi-fracture vacuum breaker |
| 07/11/2012 | CN202332692U 多断口高压真空断路器的动态均压装置 Dynamic Multi-voltage vacuum circuit breaker fracture equalizing device |
| 07/11/2012 | CN202332691U 高压真空断路器 High voltage vacuum circuit breaker |
| 07/11/2012 | CN202332690U 用于智能一体化变电站的高压负荷开关 For intelligent integration of high-voltage substation load switch |
| 07/11/2012 | CN202332689U 六氟化硫断路器内部导气筒 Sulfur hexafluoride circuit breaker inside the guide cylinder |
| 07/11/2012 | CN202332688U 本质安全型高压负荷开关 Intrinsically safe high voltage load switch |
| 07/11/2012 | CN202332687U 弹簧机构断路器及其操控部件 Breaker spring mechanism and control components |
| 07/11/2012 | CN202332627U 防止带负荷分、合隔离联锁装置 Prevent belt load points, co-isolation interlock device |
| 07/11/2012 | CN1941243B High voltage circuit breaker with improved interrupting capacity |
| 07/11/2012 | CN102576623A Method of manufacturing a current terminal for embedded pole part and pole part itself |
| 07/11/2012 | CN102576621A Medium voltage switchgear having disconnecting switches and three-position switches |
| 07/11/2012 | CN102575738A Shock absorber of operation mechanism for opening and closing device and method for lubricating same |
| 07/11/2012 | CN102568921A Gas insulated circuit breaker |
| 07/11/2012 | CN102568920A Vacuum circuit breaker |
| 07/11/2012 | CN102568919A Energy storing apparatus of vacuum circuit breaker |
| 07/11/2012 | CN102568918A Three-phase rotation type double-fracture vacuum arc extinguishing chamber |
| 07/11/2012 | CN102568917A Disc rotation type four-fracture vacuum arc extinguishing chamber |
| 07/11/2012 | CN102568916A Fan-shaped vacuum arc extinguishing chamber with double stations |
| 07/11/2012 | CN102568915A Method for reducing fault rate of 10kV vacuum circuit breaker |
| 07/11/2012 | CN102568914A Ultra-low-power power supply control system for permanent magnet vacuum circuit breakers |
| 07/11/2012 | CN102568913A Vacuum circuit breaker with improved rated current |
| 07/11/2012 | CN102568912A Drive unit for operating switch of medium or high voltage switching system |
| 07/11/2012 | CN102568911A Device for operating electrical switch |
| 07/11/2012 | CN102568910A 1100kV extra-high voltage series complement bypass switch |
| 07/11/2012 | CN102568716A Insulating supporting apparatus and manufacturing method thereof |
| 07/11/2012 | CN102565686A Embedded type intelligent vacuum circuit breaker for real-time monitoring |
| 07/11/2012 | CN101997274B Solid insulation complete-sealing switch isolation hood |
| 07/11/2012 | CN101620948B Vacuum switch and vacuum switchgear |
| 07/11/2012 | CN101523535B Solenoid controlled opening/closing apparatus |
| 07/10/2012 | US8217536 Magnetizing inrush current suppression device for transformer and control method of same |
| 07/05/2012 | US20120168407 Device and method for circuit protection |
| 07/05/2012 | US20120168406 System and apparatus for circuit protection within an equipment enclosure |
| 07/05/2012 | US20120168405 Switchgear Device Having at Least One Single-Pole Breaking Unit Comprising a Contact Bridge and Circuit Breaker Comprising One Such Device |
| 07/04/2012 | CN202307729U 用于罐式六氟化硫断路器的边相收放结构及罐式六氟化硫断路器 Sulfur hexafluoride circuit breaker edge for tank and tank structure with retractable sulfur hexafluoride circuit breakers |
| 07/04/2012 | CN202307676U 一种高压断路器灭弧室用绝缘筒 A high voltage circuit breaker chamber with insulating tube |
| 07/04/2012 | CN202307675U 一种真空开关触头超行程调节装置 A vacuum switch contact overtravel adjustment means |
| 07/04/2012 | CN202307674U 真空灭弧室及采用该真空灭弧室的真空断路器 Vacuum interrupter and the use of the vacuum interrupter vacuum breaker |
| 07/04/2012 | CN202307673U 交流高压真空接触器 AC high voltage vacuum contactors |
| 07/04/2012 | CN202307672U 基于真空断路器的灌封式灭弧单元 Vacuum breaker formula based potting extinguishing unit |
| 07/04/2012 | CN202307671U 一种永磁式真空断路器 A permanent magnet type vacuum breaker |
| 07/04/2012 | CN202307670U 真空负荷隔离开关 Vacuum load isolation switch |
| 07/04/2012 | CN202307669U 一种带真空断路器的复合式高压组合电器集成装置 Hybrid integrated high-voltage electrical apparatus in combination with a vacuum circuit breaker |
| 07/04/2012 | CN202307668U 一种户外高压真空断路器的导电装置 Conducting apparatus outdoor high voltage vacuum circuit breaker |
| 07/04/2012 | CN202307667U 一种互感器式户外高压真空断路器 One kind of transformer-type outdoor high voltage vacuum circuit breaker |
| 07/04/2012 | CN202307666U 电气化铁道真空断路器及电气化铁道开关设备 Electrified railway vacuum circuit breakers and switchgear electrified railway |
| 07/04/2012 | CN202307665U 一种高压户外隔离开关 A high voltage outdoor isolating switch |
| 07/04/2012 | CN202307664U 隔离换向开关传动轴组件 Isolation for the switch drive shaft assembly |
| 07/04/2012 | CN202307663U 一种252kV 三相机械连动罐式高压六氟化硫断路器 One kind of mechanical interlocking three-phase 252kV high voltage SF6 circuit breaker tank |
| 07/04/2012 | CN202307662U 断路器灭弧用静弧触头 Stationary arc contact with the circuit breaker |
| 07/04/2012 | CN202307661U 高压隔离开关断口引弧结构 High-voltage isolation switch fracture arc structure |
| 07/04/2012 | CN202307660U 一种罐式六氟化硫断路器支撑结构及罐式六氟化硫断路器 A tank of sulfur hexafluoride circuit breaker tank support structure and sulfur hexafluoride circuit breakers |
| 07/04/2012 | CN202307567U Differential cylinder for hydraulic mechanical driver of electric power switch and driver |
| 07/04/2012 | CN102549697A Embedded pole part with an isolating housing made of thermoplastic material |
| 07/04/2012 | CN102545088A Nitrogen ring main unit |
| 07/04/2012 | CN102543565A Gas circuit breaker |
| 07/04/2012 | CN102543564A Device for detecting loss of vacuum in vacuum cutting device and vacuum cutting device comprising such device |
| 07/04/2012 | CN102543563A Mining phase change vacuum contactor |
| 07/04/2012 | CN102543562A Manual energy storing device for vacuum circuit breaker |
| 07/04/2012 | CN102543561A Closing holding device for vacuum circuit breaker |
| 07/04/2012 | CN102543560A Rigid power transmission device |
| 07/04/2012 | CN102543559A Disc-type double-station vacuum arc extinguish chamber |
| 07/04/2012 | CN102543558A Vacuum switch module for looped network cabinet |
| 07/04/2012 | CN102543557A Switch unit and switchgear equipped therewith |
| 07/04/2012 | CN102543556A Alternating current vacuum contactor |
| 07/04/2012 | CN102543555A Medium voltage type gas insulation disconnecting switch |
| 07/04/2012 | CN102543554A Spring stored-energy device for fluid dynamic spring stored-energy driving device |
| 07/04/2012 | CN102543553A SF6 circuit-breaker gyromagnetic air compression type arc extinguishing chamber structure |
| 07/04/2012 | CN102543552A Electronic electromagnetic type intelligent switch for high-voltage power system |