| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 08/08/2012 | CN101226845B Contact drive assembly |
| 08/07/2012 | US8237076 Vacuum switch |
| 08/07/2012 | US8237075 Vacuum circuit breaker and gas-insulated switchgear using the same |
| 08/07/2012 | US8237074 Switching device |
| 08/07/2012 | CA2488759C Isolator/circuit-breaker device for electric substations |
| 08/02/2012 | WO2012101758A1 Switch |
| 08/02/2012 | WO2012100831A1 Circuit breaker apparatus |
| 08/02/2012 | US20120193325 Flexible seal for high voltage switch |
| 08/01/2012 | EP2482301A1 Flexible seal for high voltage switch |
| 08/01/2012 | EP2481135A1 Electrical conductor casing provided with current sensors |
| 08/01/2012 | CN202363356U Insulating pull rod of circuit breaker for gas charging cabinet |
| 08/01/2012 | CN202363355U Connection mechanism for gas-insulated switchboard (GIS) breaker operation pull rod |
| 08/01/2012 | CN202363354U Quick permanent-magnet flexible connector for vacuum circuit breaker |
| 08/01/2012 | CN202363353U Sealing structure of fixation and encapsulation pole column |
| 08/01/2012 | CN202363352U Fixation and encapsulation polar column capable of producing air holes difficultly |
| 08/01/2012 | CN202363351U Novel solid-sealed polar pole |
| 08/01/2012 | CN202363350U Self-protection vacuum contactor |
| 08/01/2012 | CN202363349U A vacuum breaker embedded type main loop for switchgear |
| 08/01/2012 | CN202363348U Mobile vacuum load switch and fuse composite appliance device |
| 08/01/2012 | CN202363347U Packed pole for outdoor vacuum circuit breaker |
| 08/01/2012 | CN202363346U AC high-voltage vacuum circuit breaker |
| 08/01/2012 | CN102623237A Permanent magnet control mechanism for vacuum breaker |
| 08/01/2012 | CN102623236A Permanent magnetic operation mechanism of high voltage vacuum breaker |
| 08/01/2012 | CN102623235A Outdoor high voltage vacuum breaker of 40.5 KV |
| 08/01/2012 | CN102623234A Medium-voltage switchgear device comprising a vacuum cartridge |
| 08/01/2012 | CN102623233A Contact arm sealing ring |
| 08/01/2012 | CN102623232A Three-phase transferring outdoor high voltage vacuum breaker of 40.5 KV |
| 08/01/2012 | CN102623231A Solid-sealed polar column unit for solid insulation switch equipment |
| 08/01/2012 | CN102623202A Composite vacuum on-load tap-changer switching assembly |
| 08/01/2012 | CN101419871B Intelligent duplicate power supply conversion switch |
| 08/01/2012 | CN101419870B Intelligent duplicate power supply conversion switch |
| 08/01/2012 | CN101393817B Chamber type intelligent duplicate power supply converting switch |
| 07/31/2012 | US8232499 Contactor assembly for switching high power to a circuit |
| 07/31/2012 | US8232497 Relief valve for discharging a dielectric gas between two volumes of a high-voltage or medium-voltage interrupting chamber |
| 07/31/2012 | US8232496 Switch disconnector |
| 07/31/2012 | US8232488 Operating mechanism for a switching device |
| 07/31/2012 | CA2761350A1 Flexible seal for high voltage switch |
| 07/26/2012 | WO2012099839A1 Electrical current interrupting device |
| 07/26/2012 | WO2012099316A1 Gas insulated switchgear |
| 07/26/2012 | WO2012098073A1 Apparatus for removing protective gas by suction from a container |
| 07/26/2012 | WO2012098003A1 Method for producing a folding or diaphragm bellows, and a folding or diaphragm bellows for medium-voltage technology |
| 07/26/2012 | WO2012097957A1 Tap changer having vacuum interrupters |
| 07/26/2012 | US20120187090 Medium-Voltage Switchgear Device Comprising a Vacuum Cartridge |
| 07/26/2012 | US20120187089 High-voltage, super-voltage and heavy current breaker |
| 07/26/2012 | DE102011002922A1 Multipole low voltage switching device for switching electric load e.g. three-phase electrical line, has switching elements that are arranged spatially one behind other along direction of movement of switching contacts |
| 07/26/2012 | CA2824539A1 Electrical current interrupting device |
| 07/25/2012 | EP2479769A1 Medium-voltage cutting device including a vacuum tube |
| 07/25/2012 | EP2479463A1 Pressure limiting valve, in particular for a medium-voltage cell |
| 07/25/2012 | CN202352580U Double-side adjustable insulating pull rod for 35 kV breaker |
| 07/25/2012 | CN202352579U Vacuum circuit breaker contact |
| 07/25/2012 | CN202352578U Sulfur hexafluoride breaker preventing closing coil from burning |
| 07/25/2012 | CN202352577U Novel load switch arcing contact and fixed contact thereof |
| 07/25/2012 | CN102610432A TCM monostable permanent magnet mechanism |
| 07/25/2012 | CN102610431A Intelligent outdoor high-voltage permanent magnet vacuum circuit breaker |
| 07/25/2012 | CN102610430A Permanent magnetic type high-voltage vacuum circuit breaker |
| 07/25/2012 | CN102610429A Multipole low voltage switching device |
| 07/25/2012 | CN102610428A Circuit breaker arrangement for medium voltage to high voltage applications |
| 07/25/2012 | CN102610427A Intelligent switch-on-off speed monitoring device for vacuum circuit breaker |
| 07/25/2012 | CN102610426A Switchgear |
| 07/25/2012 | CN102610381A Integrated transformer |
| 07/25/2012 | CN101847526B Hydraulic spring operation mechanism |
| 07/25/2012 | CN101661850B Protector for preventing interception over-voltage and arc reignition over-voltage of vacuum circuit breaker |
| 07/25/2012 | CN101599386B Load switch used in visual fracture state of 24kV power distribution system |
| 07/24/2012 | US8227721 Power line current interrupter having a vacuum switch chamber |
| 07/24/2012 | US8227720 Vacuum switch and vacuum switchgear |
| 07/19/2012 | WO2012095958A1 Power switching control device and closing control method thereof |
| 07/19/2012 | WO2012095942A1 Power switching control device and closing control method thereof |
| 07/19/2012 | US20120181860 Dual bipolar magnetic field for linear high-voltage contactor in automotive lithium-ion battery systems |
| 07/19/2012 | US20120181254 Winding for a contact of a medium-voltage vacuum circuit-breaker with improved arc extinction, and an associated circuit-breaker and vacuum circuit-breaker, such as an ac generator disconnector circuit-breaker |
| 07/19/2012 | US20120181253 Apparatus for interrupting current |
| 07/19/2012 | CA2824435A1 Power switching control device and closing control method thereof |
| 07/19/2012 | CA2823234A1 Power switching control device and closing control method thereof |
| 07/18/2012 | EP2477202A1 Apparatus for interrupting current |
| 07/18/2012 | EP2477201A1 Improvement in or relating to arc suppression systems. |
| 07/18/2012 | CN202339884U 一种永磁操动机构 A permanent magnet actuator |
| 07/18/2012 | CN202339883U 盘式旋磁真空灭弧室 Rotating magnetic field vacuum interrupter disc |
| 07/18/2012 | CN202339882U 一种大电流固封极柱真空断路器的散热结构 A high current solid seal cooling structure pole vacuum circuit breaker |
| 07/18/2012 | CN202339881U 柔性输电用快速卧式真空开关 FACTS with fast horizontal vacuum switch |
| 07/18/2012 | CN102598181A Tank-type vacuum interrupter |
| 07/18/2012 | CN102598180A Switch device operating mechanism |
| 07/18/2012 | CN102598179A Electromagnetically operated switching device |
| 07/18/2012 | CN102598174A A spring operated actuator for an electrical switching apparatus |
| 07/18/2012 | CN102592882A Bidirectional bi-travel operating mechanism for three-station vacuum arc extinguish chamber |
| 07/18/2012 | CN102592881A Disc type laminated gyromagnetic transversely-blowing vacuum arc extinguishing chamber |
| 07/18/2012 | CN102592880A Novel high pressure vacuum circuit breaker |
| 07/18/2012 | CN102592879A Switch unit and switchgear |
| 07/18/2012 | CN102592878A Intelligent device and method for monitoring switch-on spring performance of vacuum circuit breaker |
| 07/18/2012 | CN102592877A Working cylinder integrated with control valve and high-power hydraulic spring operating mechanism |
| 07/18/2012 | CN102592876A Air blowing arc extinguishing load switch |
| 07/18/2012 | CN101656167B Spring actuating mechanism of vacuum circuit-breaker |
| 07/18/2012 | CN101656165B Gas circuit breaker |
| 07/18/2012 | CN101635223B 10KV vacuum circuit breaker |
| 07/18/2012 | CN101553894B 断路器 Breaker |
| 07/18/2012 | CN101432834B Interrupter unit of an electrical switching device |
| 07/18/2012 | CN101375360B Alternator circuit-breaker disconnecting switch of compact structure |
| 07/18/2012 | CN101246788B Vacuum switchgear |
| 07/17/2012 | US8222556 Circuit breaker |
| 07/12/2012 | WO2012094370A1 Vacuum switch with pre-insertion contact |
| 07/12/2012 | WO2012093507A1 Switching apparatus |
| 07/12/2012 | WO2012020853A8 Method of extinguishing an electric arc in a low or high voltage switchgear by pulse discharge |