| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 03/13/2013 | CN202796716U Over-travel detection system and insulating draw rod thereof |
| 03/13/2013 | CN202796715U Welding support frame of vacuum arc-extinguishing chamber |
| 03/13/2013 | CN202796714U Sealed-type high-voltage vacuum circuit breaker pole |
| 03/13/2013 | CN202796713U Sealed high-voltage vacuum circuit breaker pole having low resistance and large current |
| 03/13/2013 | CN202796712U Sealed-type high-voltage vacuum circuit breaker pole |
| 03/13/2013 | CN202796711U Sealed-type high-voltage vacuum circuit breaker pole suitable for smart power grid |
| 03/13/2013 | CN202796710U Connection mode of polar column wiring terminal and arc extinguish chamber |
| 03/13/2013 | CN202796709U Miniature high voltage vacuum load switch |
| 03/13/2013 | CN202796708U Binding post protective sleeve of outdoor AC high-voltage vacuum circuit breaker |
| 03/13/2013 | CN202796707U Combined type insulated frame of vacuum circuit breaker |
| 03/13/2013 | CN202796706U Solid packed pole with current transformer casted inside |
| 03/13/2013 | CN202796705U Permanent-magnetic operation vacuum circuit breaker |
| 03/13/2013 | CN202796704U Permanent magnetism solid insulated type indoor high-voltage vacuum circuit breaker |
| 03/13/2013 | CN202796703U Integral plastic-covered contact arm for breaker |
| 03/13/2013 | CN202796702U Interlocking device for manual energy storage and electric energy storage of breaker spring mechanism |
| 03/13/2013 | CN202796701U Connecting rod transmission device of gas insulated switchgear (GIS) disconnecting switch breaking-closing action |
| 03/13/2013 | CN202796700U Braking device of circuit breaker spring energy storage mechanism |
| 03/13/2013 | CN202796699U High voltage electrical apparatus insulation shielding device |
| 03/13/2013 | CN202796698U 10kV disconnecting switch with load breaking |
| 03/13/2013 | CN202796697U Disconnector |
| 03/13/2013 | CN102971819A A high voltage DC breaker apparatus |
| 03/13/2013 | CN102969196A Compression bar type energy storage operating mechanism for vacuum circuit breaker |
| 03/13/2013 | CN102969195A Axial adaptive bistable permanent magnetic mechanism with opening acceleration |
| 03/13/2013 | CN102969194A Novel vacuum circuit breaker with fixedly encapsulated pole |
| 03/13/2013 | CN102969193A Direct-acting vacuum switch device of ring main unit (RMU) |
| 03/13/2013 | CN102969192A Medium-pressure vacuum loading device |
| 03/13/2013 | CN102969191A Linear motion type isolation grounding switch |
| 03/13/2013 | CN102969190A 电开关 Electric switch |
| 03/13/2013 | CN102005328B Rotating arc type arc-extinguishing device of gas insulating load switch |
| 03/13/2013 | CN101828242B Gas-insulated high-voltage circuit breaker with a relief duct which is controlled by an overflow valve |
| 03/13/2013 | CN101821828B Buchholz relay for protecting oil insulated power electric equipment |
| 03/13/2013 | CN101770894B Air circuit breaker and connection mechanism |
| 03/13/2013 | CN101740261B Driving structure of high-voltage vacuum breaker sprocket wheel and driving wheel |
| 03/13/2013 | CN101118815B Medium or high voltage electrical equipment control device and method |
| 03/08/2013 | CA2788790A1 Electrical switching apparatus, and stored energy assembly and energy storage and release control mechanism therefor |
| 03/07/2013 | WO2013031037A1 Electromagnetic operation device for vacuum circuit breaker |
| 03/07/2013 | WO2013030963A1 Gas circuit breaker |
| 03/07/2013 | US20130057083 High-voltage switching device |
| 03/07/2013 | US20130056444 Gas blast circuit breaker |
| 03/07/2013 | DE112010005545T5 Vakuum-Leistungsschalter Vacuum Circuit Breaker |
| 03/07/2013 | DE102011082258A1 Schutzschaltgerät mit einer Statusanzeigevorrichtung Circuit breaker with a status display device |
| 03/06/2013 | EP2565898A1 Electrical switching station |
| 03/06/2013 | EP2565897A1 Switchgear and switchgear operating method |
| 03/06/2013 | EP2565891A2 Driver for switch in gas insulated switchgear and gas insulated switchgear having the same |
| 03/06/2013 | CN202772039U Pressure-operated load switch for gas insulation ring-network cabinet |
| 03/06/2013 | CN202772038U Permanent magnet driven air-tight vacuum breaker |
| 03/06/2013 | CN202772037U Epoxy resin type outdoor high voltage vacuum circuit breaker |
| 03/06/2013 | CN202772036U Vacuum circuit breaker |
| 03/06/2013 | CN202772035U Indoor side-mounted vacuum circuit breaker |
| 03/06/2013 | CN202772034U Vacuum arc-extinguishing chamber contact |
| 03/06/2013 | CN202772033U Vacuum transfer switch |
| 03/06/2013 | CN202772032U Vacuum circuit breaker having integrated structure |
| 03/06/2013 | CN202772031U Intelligent vacuum contactor |
| 03/06/2013 | CN202772030U Three-phase circuit breaker with variable phase spacing and electrode spacing |
| 03/06/2013 | CN102959815A Cubicle-type gas-insulated switching apparatus |
| 03/06/2013 | CN102959670A Rush-current limiting apparatus |
| 03/06/2013 | CN102959669A Phase control switchgear |
| 03/06/2013 | CN102956397A Permanent magnetic actuator with auxiliary electromagnetic loop |
| 03/06/2013 | CN101669184B Device for protecting converter modules |
| 03/06/2013 | CN101617377B Vacuum circuit breaker |
| 03/06/2013 | CN101548351B Gear for electrical circuit breakers |
| 03/05/2013 | US8389886 High-voltage circuit breaker with improved circuit breaker rating |
| 02/28/2013 | WO2012109317A3 Limit stop apparatus, circuit breakers including limit stops, and methods of using same |
| 02/28/2013 | US20130048611 Vacuum interrupter |
| 02/28/2013 | US20130048477 Circuit interconnect device racking apparatus, racking assemblies, and methods of connecting circuit interconnect devices |
| 02/28/2013 | DE102011086810B3 Polschale für einen Leistungsschalter Pole shell for a circuit breaker |
| 02/28/2013 | DE102011081921A1 Magnetaktor und Verfahren zu dessen Einsatz an elektrischen Schaltanlagen Magnetic actuator and method for its use on electrical switchgear |
| 02/28/2013 | DE102011081736A1 Elektrischer Schalter Electric switch |
| 02/28/2013 | CA2788039A1 Gas insulated switchgear with withdrawable circuit breaker unit |
| 02/27/2013 | CN202758806U Vacuum circuit breaker |
| 02/27/2013 | CN202758805U All-insulated all-sealed compact outdoor vacuum circuit breaker |
| 02/27/2013 | CN202758804U Vacuum circuit breaker |
| 02/27/2013 | CN202758803U Modularized high-voltage vacuum contactor |
| 02/27/2013 | CN202758802U Large end cover of load switch |
| 02/27/2013 | CN202758801U Pneumatic valve of load switch |
| 02/27/2013 | CN102947914A High-voltage switching unit |
| 02/27/2013 | CN102947912A Switch unit, method for assembling a switch unit, and circuit breaker for a medium voltage circuit |
| 02/27/2013 | CN102945768A Arc-control device of breaker |
| 02/27/2013 | CN102945767A Arc extinguish chamber of 110KV circuit breaker |
| 02/27/2013 | CN101599391B Novel single-fracture single-cylinder self energy high pressure sulfur hexafluoride breaker arc extinguish chamber |
| 02/21/2013 | DE102011081288A1 Leistungsschalter zum Schalten von Mittelspannung und Verfahren zum Betreiben eines solchen Leistungsschalters Power switch means for switching voltage and method for operating such a circuit breaker |
| 02/20/2013 | EP2560179A1 Vacuum arc extinguishing chamber with double breaks |
| 02/20/2013 | EP2560178A1 Circuit breaker for switching medium voltage and method for operating such a circuit breaker |
| 02/20/2013 | EP2560177A2 Solid insulated switchgear |
| 02/20/2013 | EP2559044A1 Switch unit, method for assembling a switch unit, and circuit breaker for a medium voltage circuit |
| 02/20/2013 | CN202749296U Solid-encapsulated pole with vacuum degree on-line monitoring |
| 02/20/2013 | CN202749295U Permanent magnet driving device of vacuum circuit breaker |
| 02/20/2013 | CN202749294U Switch of permanent magnetic mechanism |
| 02/20/2013 | CN202749293U Flexible connector of operating mechanism of vacuum circuit breaker |
| 02/20/2013 | CN202749292U A vacuum circuit breaker self-adaptive operating mechanism with the properties of permanent magnet and spring mechanisms |
| 02/20/2013 | CN202749291U Vacuum breaker |
| 02/20/2013 | CN202749290U Embedded pole |
| 02/20/2013 | CN202749289U Outdoor AC high voltage vacuum circuit breaker |
| 02/20/2013 | CN202749288U Fixedly embedded pole for vacuum load switch |
| 02/20/2013 | CN102938349A High-voltage gas circuit breaker |
| 02/20/2013 | CN102938348A Welded shaft transmitted permanent-magnet and solid-sealed vacuum circuit breaker |
| 02/20/2013 | CN102938347A Detachable fixation and encapsulation pole terminal and manufacturing method thereof |
| 02/20/2013 | CN102938346A Integrated permanent-magnet operating mechanism with manual brake separating function |
| 02/20/2013 | CN101834089B Run/test position indicator device of vacuum circuit breaker |
| 02/20/2013 | CN101834085B Withdrawable device of main circuit for vacuum circuit breaker |