| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 04/02/2013 | US8410388 Self-blowout circuit breaker having a filling and overpressure valve |
| 03/28/2013 | WO2013042687A1 Switchgear operating mechanism and switchgear |
| 03/28/2013 | WO2013042685A1 On-load tap changing device and energizing mechanism thereof |
| 03/28/2013 | WO2013042566A1 Solenoid operating device and opening and closing device using same |
| 03/28/2013 | WO2013041903A1 Compact circuit breaker |
| 03/28/2013 | WO2013041697A1 Mixture of hydrofluoroolefin and fluoroketone for use as an insulation and/or arc-extinguishing medium and a gas insulated high-voltage electrical device comprising same |
| 03/28/2013 | WO2013041695A1 Mixture of hydrofluoroolefin and fluoroketone for use as an insulation and/or arc-extinguishing medium and a gas insulated medium-voltage electrical device comprising same |
| 03/28/2013 | WO2013041579A1 Circuit breaker comprising a discharge conduit |
| 03/28/2013 | WO2013041324A1 Electromagnetic drive |
| 03/28/2013 | US20130075369 Vacuum switch and hybrid switch assembly therefor |
| 03/28/2013 | US20130075368 Vacuum switching apparatus including first and second movable contact assemblies, and vacuum electrical switching apparatus including the same |
| 03/28/2013 | US20130075367 DC Switching Device |
| 03/28/2013 | DE102011083594A1 Leistungsschalterunterbrechereinheit Breaker interrupter unit |
| 03/28/2013 | DE102011083593A1 Leistungsschalterunterbrechereinheit Breaker interrupter unit |
| 03/28/2013 | DE102011083588A1 Anordnung aufweisend eine Leistungsschalterunterbrechereinheit Arrangement comprising a circuit breaker interrupter unit |
| 03/28/2013 | DE102011083514A1 Gleichspannungs-Leistungsschalter DC circuit breaker |
| 03/27/2013 | EP2573887A1 Cubicle-type gas-insulated switching apparatus |
| 03/27/2013 | EP2572364A1 Nozzle for blowing out an electric arc |
| 03/27/2013 | CN202839452U Riveting structure of conducting rod and contact of vacuum arc extinguish chamber |
| 03/27/2013 | CN202839451U Vacuum arc extinguish chamber |
| 03/27/2013 | CN202839450U Vacuum arc extinguishing chamber |
| 03/27/2013 | CN202839449U Anti-condensation aluminum bracket for vacuum circuit breaker |
| 03/27/2013 | CN202839448U Novel vacuum contactor |
| 03/27/2013 | CN202839447U Intelligent vortex touch high-speed switch |
| 03/27/2013 | CN202839446U Spraying type self-cooling epoxy resin solid sealed pole |
| 03/27/2013 | CN202839445U Conductive contact arm for AC high voltage vacuum circuit breaker |
| 03/27/2013 | CN202839444U Embedded pole for outdoor vacuum circuit breaker |
| 03/27/2013 | CN202839443U Vacuum circuit breaker key lock |
| 03/27/2013 | CN202839442U Vacuum current-limiting circuit breaker |
| 03/27/2013 | CN202839441U Intelligent branch division vacuum circuit breaker controller |
| 03/27/2013 | CN202839440U Intelligent branch division vacuum circuit breaker complete device |
| 03/27/2013 | CN202839439U Double-acting type high-voltage sulfur-hexafluoride circuit breaker and double-acting transmission device thereof |
| 03/27/2013 | CN202839438U Double-acting high-voltage sulfur-hexafluoride circuit breaker and double-acting transmission device thereof |
| 03/27/2013 | CN202839437U Sulfur hexafluoride load switch with isolating distance |
| 03/27/2013 | CN103000445A Elastic pressure relief system for reducing breaker operation work |
| 03/27/2013 | CN103000444A Self-energy sulfur hexafluoride (SF6) circuit breaker double nozzle type arc extinguishing chamber and arc extinguishing method thereof |
| 03/27/2013 | CN103000443A Single-stage direct actuating low-voltage permanent magnet vacuum load switch |
| 03/27/2013 | CN103000442A Solid-sealed polar pole for intelligent vacuum breaker |
| 03/27/2013 | CN103000441A Intelligent breaker |
| 03/27/2013 | CN103000440A Vacuum interrupter |
| 03/27/2013 | CN103000439A Protective switch device with a status display device |
| 03/27/2013 | CN101393813B Electromagnetic actuator and switching device equipped with such an electromagnetic actuator |
| 03/21/2013 | WO2013038919A1 Magnetizing inrush current suppressing device |
| 03/21/2013 | WO2013037798A1 Busbar connection |
| 03/21/2013 | WO2013037726A1 Interrupting chamber for a circuit breaker |
| 03/21/2013 | WO2013037589A1 Direct current circuit breaker |
| 03/21/2013 | US20130068728 High voltage relay non mercury |
| 03/21/2013 | CA2848474A1 Busbar connection |
| 03/21/2013 | CA2844245A1 Magnetizing inrush current suppression device |
| 03/20/2013 | EP2571039A1 Vacuum interrupter |
| 03/20/2013 | EP2569795A1 Gas blast circuit breaker |
| 03/20/2013 | EP2569794A1 A high voltage dc breaker apparatus |
| 03/20/2013 | EP2569793A1 A high voltage dc breaker apparatus |
| 03/20/2013 | CN202816788U Insulating tension pole, and electrical device comprising the same |
| 03/20/2013 | CN202816787U Driving mechanism of vacuum breaker |
| 03/20/2013 | CN202816786U A permanent magnetic operating mechanism of a high-voltage vacuum circuit breaker |
| 03/20/2013 | CN202816785U A 40.5kV outdoor high-voltage vacuum circuit breaker with three respectively-motioned phases |
| 03/20/2013 | CN202816784U Breaker voltage equalizing cover |
| 03/20/2013 | CN202816783U Encapsulation terminal post for vacuum circuit breakers |
| 03/20/2013 | CN202816782U Solid sealed pole |
| 03/20/2013 | CN202816781U Indoor high-voltage AC vacuum circuit breaker |
| 03/20/2013 | CN202816780U Integrated environmentally friendly solid-sealed polar pole |
| 03/20/2013 | CN202816779U Solid insulated pole |
| 03/20/2013 | CN202816778U Girder and truck assembly for vacuum circuit breaker |
| 03/20/2013 | CN202816777U Anti-maloperation baffle plate for vacuum breaker |
| 03/20/2013 | CN202816776U Sulfur hexachloride power circuit breaker aerating device |
| 03/20/2013 | CN202816775U Load switch outer connection wire sealing assembly |
| 03/20/2013 | CN202816774U Load switch inlet and outlet wire sealing assembly |
| 03/20/2013 | CN202816773U High-voltage isolation switch arc-ignition apparatus |
| 03/20/2013 | CN202816715U Spring energy-storage control module, operating mechanism thereof and circuit breaker |
| 03/20/2013 | CN102986100A Switchgear with single-phase insulation comprising air and screens |
| 03/20/2013 | CN102985990A Gas blast circuit breaker |
| 03/20/2013 | CN102983038A High-voltage vacuum circuit breaker with O-shaped electrodynamic force compensation device |
| 03/20/2013 | CN102097247B Vacuum circuit breaker with electromotive force compensation circuit |
| 03/20/2013 | CN101882531B Manual closing mechanism of high-voltage vacuum permanent magnet mechanism circuit-breaker |
| 03/20/2013 | CN101728783B Gas insulated circuit breaker system and gas insulated circuit breaker monitoring method |
| 03/20/2013 | CN101404229B Circuit breaker interrupter tube with double compression volume |
| 03/19/2013 | US8399791 Interrupter arrangement having a movable switching tube |
| 03/14/2013 | WO2013035547A1 Tank-type breaker |
| 03/14/2013 | WO2013035463A1 Puffer type gas circuit breaker |
| 03/14/2013 | WO2013034447A1 Contact for a vacuum switching tube and contact system |
| 03/14/2013 | WO2013034445A1 Electromagnetic drive |
| 03/14/2013 | WO2013034350A1 Electrical switchgear unit |
| 03/14/2013 | US20130062317 Installation switching device |
| 03/14/2013 | US20130062316 Vacuum interrupter |
| 03/14/2013 | US20130062315 Vacuum interrupter |
| 03/14/2013 | US20130062314 Dielectric loaded fluids for high voltage switching |
| 03/14/2013 | US20130062313 Gas circuit breaker |
| 03/14/2013 | CA2847457A1 Electromagnetic drive |
| 03/13/2013 | EP2568553A1 Busbar connection |
| 03/13/2013 | EP2568493A1 High-Voltage switching device |
| 03/13/2013 | CN202796772U 10kV rapid intelligent column breaker |
| 03/13/2013 | CN202796724U Arc blow-out and extinguishing apparatus of switch cabinet |
| 03/13/2013 | CN202796723U Permanent magnetic operating mechanism of high-voltage vacuum circuit breaker |
| 03/13/2013 | CN202796722U Breaker mechanism with free tripping function and for conducting closing operation manually and quickly |
| 03/13/2013 | CN202796721U High voltage vacuum circuit breaker tripping device |
| 03/13/2013 | CN202796720U Opening control device for high-voltage vacuum circuit breaker |
| 03/13/2013 | CN202796719U Closing device of high-voltage vacuum circuit breaker |
| 03/13/2013 | CN202796718U Outdoor permanent-magnet vacuum circuit breaker |
| 03/13/2013 | CN202796717U High-voltage vacuum circuit breaker spring operating mechanism |