| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 12/18/2013 | CN102089845B Method and device for producing vacuum interrupters or assemblies of vacuum interrupters, and vacuum interrupter |
| 12/18/2013 | CN101969006B Method for improving converted current switching capability of ultra-high voltage alternating current open isolating switch |
| 12/12/2013 | WO2013182318A1 Differential cylinder arrangement for a hydro-mechanical drive for an electrical circuit breaker |
| 12/12/2013 | WO2013182291A1 Working cylinder for a drive of an electric circuit breaker |
| 12/12/2013 | DE102012104992A1 Schaltgerät Switchgear |
| 12/12/2013 | DE102012011498A1 Differentialzylinderanordnung für einen hydromechanischen Antrieb für elektrische Leistungsschalter Differential cylinder arrangement for a hydro-mechanical drive for electric power switch |
| 12/11/2013 | EP2672499A1 Opening/closing device and mechanism for operating opening/closing device |
| 12/11/2013 | EP2671240A1 Vacuum bulb system comprising a locking means |
| 12/11/2013 | EP2671239A1 Electrical equipment comprising a mobile part having improved dynamics |
| 12/11/2013 | CN203339055U 灭弧室 Interrupter |
| 12/11/2013 | CN203339054U Vacuum degree detection device for arc extinguishing chamber of vacuum circuit breaker |
| 12/11/2013 | CN203339053U Driving mechanism of vacuum arc extinguish chamber in on-load tap-changer |
| 12/11/2013 | CN203339052U Integrated arc extinguish chamber of vacuum circuit breaker |
| 12/11/2013 | CN203339051U Contact device of vacuum circuit breaker |
| 12/11/2013 | CN203339050U Single-arm structure of vacuum circuit breaker |
| 12/11/2013 | CN203339049U Lower wire-outgoing base of vacuum circuit breaker |
| 12/11/2013 | CN203339048U Colum vacuum circuit breaker |
| 12/11/2013 | CN203339047U Voltage-sharing ground-shield high-voltage vacuum arc-extinguishing chamber embedded pole of lumbar support rotation type |
| 12/11/2013 | CN203339046U Circuit breaker arc extinguishing chamber arc extinguishing apparatus mounting structure |
| 12/11/2013 | CN203339045U Gas insulation load switch insulation cylinder mounting structure |
| 12/11/2013 | CN203339044U Static contact of disconnecting switch |
| 12/11/2013 | CN103444028A Tank-type switching device |
| 12/11/2013 | CN103443894A Gas-insulated high-voltage power circuit breaker |
| 12/11/2013 | CN103443893A Limit stop apparatus, circuit breakers including limit stops, and methods of using same |
| 12/11/2013 | CN103441033A Vacuum contactor |
| 12/11/2013 | CN103441032A Single-phase vacuum circuit breaker actuated on basis of electromagnetic force |
| 12/11/2013 | CN103441031A Double fracture tank type vacuum circuit breaker |
| 12/11/2013 | CN103441030A Single-fracture vacuum single-bus combined electrical apparatus |
| 12/11/2013 | CN103441029A Double fracture vacuum single bus combined electrical apparatus |
| 12/11/2013 | CN103441028A Vacuum three-position switch with rapid earth switch |
| 12/11/2013 | CN103441027A Single-fracture vacuum double-bus combined electrical apparatus |
| 12/11/2013 | CN103441026A Single-fracture can-type vacuum circuit breaker |
| 12/11/2013 | CN103441025A Double fracture vacuum double bus combined electrical apparatus |
| 12/11/2013 | CN103441024A High-current output intelligent control device for electromagnetic thrust actuating mechanism |
| 12/11/2013 | CN103441005A Hydraulic spring operation device applied to operation of opening and closing high-voltage circuit breaker |
| 12/11/2013 | CN102171780B Electrode material for vacuum circuit breaker and method for producing same |
| 12/11/2013 | CN101981645B Vacuum breaker and gas insulated switchgear using the same |
| 12/11/2013 | CN101847539B Shutter |
| 12/10/2013 | US8604377 Automatic transfer switch |
| 12/10/2013 | CA2598049C Switching resistor for an electric switching device |
| 12/05/2013 | WO2013179925A1 Switchgear and switchgear assembling method |
| 12/05/2013 | WO2013179772A1 Switching unit or switching gear |
| 12/05/2013 | WO2013179456A1 Gas circuit breaker |
| 12/05/2013 | WO2013178787A1 High-voltage switch with multiple metal enclosures |
| 12/05/2013 | WO2013178696A1 Circuit breaker apparatus |
| 12/05/2013 | WO2013177781A1 High-voltage vacuum switch |
| 12/05/2013 | DE102012209307A1 Compressed gas-insulated electric power transmission unit, has active conductors retained in receiving space of housing that is supported at supporting insulator, where receiving spaces of housing and insulator are separated from each other |
| 12/05/2013 | DE102012011130A1 Arbeitszylinder für einen Antrieb eines elektrischen Leistungsschalters Cylinder for driving an electrical circuit breaker |
| 12/04/2013 | EP2670009A1 Switch |
| 12/04/2013 | EP2670008A1 Vacuum insulation switchgear and method for replacing mold switch |
| 12/04/2013 | EP2669921A1 Circuit breaker apparatus |
| 12/04/2013 | CN203325796U Compressed-air type arc extinguish chamber of circuit breaker |
| 12/04/2013 | CN203325795U Arc-extinguishing chamber |
| 12/04/2013 | CN203325794U Integrated permanent magnetic mechanism drive unit |
| 12/04/2013 | CN203325793U Permanent magnetic and spring double operation mechanism on outdoor three-phase upright column type vacuum circuit breaker |
| 12/04/2013 | CN203325792U Outdoor vacuum circuit breaker of solid insulation |
| 12/04/2013 | CN203325791U High-voltage vacuum circuit breaker direct-acting sealing device |
| 12/04/2013 | CN203325790U GIS circuit breaker |
| 12/04/2013 | CN203325789U Inflation auxiliary device of LW6B-252 type circuit breaker |
| 12/04/2013 | CN203325788U Three phase separation type permanent magnet operating mechanism circuit breaker |
| 12/04/2013 | CN203325787U Conducting rod connection structure for GIS |
| 12/04/2013 | CN203325786U Three-way device |
| 12/04/2013 | CN203323916U Intelligent wireless temperature measurement permanent magnetic circuit breaker |
| 12/04/2013 | CN103430414A Switch for a transmission path for high-voltage direct current |
| 12/04/2013 | CN103430265A Contact member including purposely introduced undulations and vacuum interrupter including the same |
| 12/04/2013 | CN103426680A Pressure-operated load switch |
| 12/04/2013 | CN103426679A High current switching device |
| 12/04/2013 | CN102412087B Surface decontamination system for moving and static contacts of vacuum arc extinguish chamber |
| 12/03/2013 | US8598483 High-voltage power switch having a contact gap equipped with switching gas deflection elements |
| 11/28/2013 | WO2013175653A1 Electromagnetic device and switching device using said electromagnetic device |
| 11/28/2013 | WO2013175565A1 Gas circuit breaker |
| 11/28/2013 | WO2013175112A1 Arc control device for vacuum bulb |
| 11/28/2013 | US20130313228 Switch with quenching chamber |
| 11/28/2013 | DE102012208573A1 Arc extinguishing device for extinguishing arc in single-interrupting protective switching device, has blowing loop producing magnetic field that drives arc between quenching plates, where loop is arranged between arc splitter stacks |
| 11/28/2013 | DE102012104378A1 Anordnung von Vakuumschaltröhren bei einem Lastumschalter Arrangement of vacuum interrupters at a load switch |
| 11/27/2013 | EP2667395A1 Gas insulated switchgear |
| 11/27/2013 | EP2666178A1 Apparatus for removing protective gas by suction from a container |
| 11/27/2013 | EP2666173A1 Tap changer having vacuum interrupters |
| 11/27/2013 | CN203312690U Combined electric appliance with isolation, load, fusing and grounding functions |
| 11/27/2013 | CN203312687U Flame-proof and intrinsically-safe-type high-voltage vacuum power distribution equipment used for mine |
| 11/27/2013 | CN203312152U Double-switching-in-position spring operation mechanism |
| 11/27/2013 | CN203312151U Operating mechanism of vacuum circuit breaker |
| 11/27/2013 | CN203312150U A rapid eddy current driving mechanism |
| 11/27/2013 | CN203312149U High-voltage vacuum circuit breaker operating mechanism with alarm device |
| 11/27/2013 | CN203312148U Vacuum arc extinguishing chamber applied to high voltage vacuum circuit breaker |
| 11/27/2013 | CN203312147U Vacuum circuit breaker |
| 11/27/2013 | CN203312146U A novel ceramic tube casing of an electric vacuum switch tube |
| 11/27/2013 | CN203312145U Solid-sealed polar pole |
| 11/27/2013 | CN203312144U Ultra-short-type solid encapsulation pole column |
| 11/27/2013 | CN203312143U Low-voltage vacuum contactor for power control |
| 11/27/2013 | CN203312142U Vacuum circuit breaker |
| 11/27/2013 | CN203312141U Breaker and major loop slidingly-coupled structure |
| 11/27/2013 | CN203312140U Switch-on-off indicator linkage mechanism for vacuum circuit breaker |
| 11/27/2013 | CN203312139U An upper conducting rod structure of an injection moulding type terminal post |
| 11/27/2013 | CN203312138U Magnetic quenching SF6 three-position load switch |
| 11/27/2013 | CN203312137U Bus isolation switch |
| 11/27/2013 | CN203312083U Slidingly-coupled composite apparatus |
| 11/27/2013 | CN103413721A Vacuum degree on-line monitoring system of vacuum circuit breaker |
| 11/27/2013 | CN103413720A High-voltage circuit breaker with buffer and balance weight integrated |
| 11/27/2013 | CN103413719A External mechanical manual opening device and permanent magnet driving mechanism |