| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/24/2009 | CN201262915Y Intelligent controller of medium-pressure vacuum circuit breaker |
| 06/24/2009 | CN201262914Y Auxiliary switch of vacuum circuit breaker |
| 06/24/2009 | CN101465236A Vacuum insulated switchgear |
| 06/24/2009 | CN101465235A On-pole switch |
| 06/24/2009 | CN101465234A Device for transmitting current of isolation switch switching bus bar |
| 06/24/2009 | CN100505130C Low-voltage intelligent vacuum circuit breaker |
| 06/23/2009 | US7550691 Adjustable switching mechanism for series coupled vaccum interrupters |
| 06/23/2009 | CA2303531C Electrical power distribution switch |
| 06/18/2009 | WO2009075394A1 High voltage circuit breaker having function of preventing opening and closing surge |
| 06/18/2009 | WO2009074856A1 Electric motor drive provided with electric energy accumulation for switch-devices |
| 06/18/2009 | WO2009074016A1 Heat dissipating means for circuit-breaker and circuit-breaker with such heat dissipating means |
| 06/18/2009 | DE102006008933B4 Elektrisches Schaltgerät Electrical switching apparatus |
| 06/17/2009 | EP2071701A1 Breaker open/closure control system |
| 06/17/2009 | CN201259863Y Cap type soft connection for vacuum circuit breaker |
| 06/17/2009 | CN201259862Y Three position load switch operating device |
| 06/17/2009 | CN101459013A Longitudinal magnetic field electrode vacuum switch tube with low loop resistance |
| 06/17/2009 | CN101459012A Permanent magnet linear motor operation mechanism for high voltage circuit breaker |
| 06/17/2009 | CN100501893C Method of current interruption using buffer type gas circuit breaker and buffer type gas circuit breaker thereof |
| 06/11/2009 | WO2009071516A1 Device for detecting and locating electrical discharges in a fluid-insulated electrical apparatus |
| 06/11/2009 | US20090145883 Method for Producing Contact Makers for Vacuum Switching Chambers |
| 06/11/2009 | US20090145882 Protection Switch |
| 06/10/2009 | EP2068335A1 Breaker open/closure controller |
| 06/10/2009 | EP2067157A2 Vacuum recloser |
| 06/10/2009 | CN201256121Y Permanent magnet mechanism for large capacity vacuum circuit breaker |
| 06/10/2009 | CN201256120Y Solid sealed pole unit for dual vacuum bubble |
| 06/10/2009 | CN201256119Y Contact tip for vacuum switch |
| 06/10/2009 | CN201256118Y Contact tip for vacuum switch |
| 06/10/2009 | CN201256117Y Insulation pulling rod for circuit breaker |
| 06/10/2009 | CN201256116Y Fixed circuit breaker |
| 06/10/2009 | CN201256115Y Vacuum additron |
| 06/10/2009 | CN201256114Y Vacuum additron |
| 06/10/2009 | CN201256113Y Vacuum additron |
| 06/10/2009 | CN201256112Y Vacuum additron |
| 06/10/2009 | CN201256111Y Vacuum additron |
| 06/10/2009 | CN201256110Y Solid packing high-voltage AC vacuum circuit breaker polar post |
| 06/10/2009 | CN201256109Y Interlocking device for high-voltage circuit breaker |
| 06/10/2009 | CN201256108Y Arc-control device for loaded switch |
| 06/10/2009 | CN201256107Y 母线联接装置 Bus coupling device |
| 06/10/2009 | CN101454858A Breaker |
| 06/04/2009 | US20090139844 Tunable electrical transient generator for electromagnetic pulser |
| 06/04/2009 | DE102007056597A1 Circuit-breaker for switch unit i.e. switch cabinet, has open-porous metal foam provided between contacts and inner wall of outer housing from current guidance parts of circuit-breaker, where outer housing is closed impermeable to gas |
| 06/03/2009 | CN201252047Y Movable end connecting structure for sealed high-pressure vacuum breaker |
| 06/03/2009 | CN201252046Y Mine arc-free permanent magnetic vacuum contactor |
| 06/03/2009 | CN201252045Y Indoor high-pressure vacuum breaker |
| 06/03/2009 | CN201252044Y Assembly of insulating tension pole for seal poles of high-voltage vacuum breaker |
| 06/03/2009 | CN201252043Y Insulating cylinder of high-voltage vacuum breaker |
| 06/03/2009 | CN201252042Y 24 kV outdoor high-voltage vacuum circuit breaker |
| 06/03/2009 | CN201252041Y Mechanical linking device between isolating switch and fixed breaker |
| 06/03/2009 | CN201252040Y Operating mechanism for drying a movable contact of a high-voltage breaker by utilizing a straight-line induction motor |
| 06/03/2009 | CN201252039Y Load switch |
| 06/03/2009 | CN201252038Y Arc-extinguishing load switch |
| 06/03/2009 | CN101449350A Circuit breaker |
| 06/03/2009 | CN101447368A Buffering gas insullation circuit breaker |
| 06/03/2009 | CN101447367A Permanent magnet linear thrust operating mechanism used for vacuum circuit breaker |
| 06/03/2009 | CN101447366A Bi-stable permanent magnetism operating mechanism |
| 06/03/2009 | CN101447365A Monostable permanent magnetism operating mechanism |
| 06/03/2009 | CN101447364A Electromagnetic force driving mechanism of an SF6 high voltage circuit breaker |
| 06/03/2009 | CN101447363A Cylindrical linear induction motor control device of a high voltage circuit breaker and application method thereof |
| 06/03/2009 | CN101447362A Permanent magnet swing angle electric operating mechanism of high voltage circuit breaker |
| 06/03/2009 | CN101447361A Remaining hydraulic spring mechanism |
| 06/03/2009 | CN100495616C Switch device of parallel connection vacuum arc extinguishing chamber |
| 05/28/2009 | US20090138212 State grasping device and open/closure controller having this state grasping device |
| 05/28/2009 | US20090134125 Switchgear and method of fabricating the same |
| 05/28/2009 | US20090134124 Buffering mechanism for gas circuit breaker |
| 05/28/2009 | US20090134123 High voltage circuit breaker with improved gas exhaust |
| 05/27/2009 | EP2063445A1 Improved high-voltage circuit breaker with gas release |
| 05/27/2009 | EP2063442A1 Power switch with flexible conductors |
| 05/27/2009 | EP1984933A4 Vacuum-type electrical switching apparatus |
| 05/27/2009 | EP1911057B1 Electrical switchgear |
| 05/27/2009 | CN201247924Y Sealing structure of vacuum circuit breaker in aeration cabinet |
| 05/27/2009 | CN201247920Y Interlocking device of switch cabinet |
| 05/27/2009 | CN201247728Y Double-purpose microminiature permanent magnet mechanism for vacuum contactor and vacuum circuit breaker |
| 05/27/2009 | CN201247727Y Operating mechanism of vacuum circuit breaker |
| 05/27/2009 | CN201247726Y Operating mechanism of vacuum circuit breaker |
| 05/27/2009 | CN201247725Y 3 to 35kV vacuum switch restrike restrainer |
| 05/27/2009 | CN201247724Y Non electric arc permanent magnet vacuum circuit breaker for mining |
| 05/27/2009 | CN201247723Y Maintenance-free and reinforced insulation solid sealed pole |
| 05/27/2009 | CN201247722Y Single-phase control switchingin device |
| 05/27/2009 | CN201247721Y Controllable electro-magnetism high-/low-voltage DC/AC vacuum permanent magnet contactor |
| 05/27/2009 | CN101442156A Connecting bar with flat interface |
| 05/27/2009 | CN100492573C High energy vacuum CROWBAR switch based on high permitivity planar flashover |
| 05/20/2009 | EP2061055A1 Switching device equipped with a circuit breaker and a disconnecting switch and comprising shared activation means |
| 05/20/2009 | EP2061052A2 Switching device for direct current applications |
| 05/20/2009 | EP2059938A1 Vacuum circuit breaker |
| 05/20/2009 | EP2059937A1 Vacuum interrupter chamber for medium-voltage switchgear |
| 05/20/2009 | EP2059935A1 Vacuum circuit breaker |
| 05/20/2009 | EP2006871A9 Electromagnetic operating device for switch |
| 05/20/2009 | CN201242972Y Fixing/sealing phase pole for circuit breaker and sealing ring thereof |
| 05/20/2009 | CN201242971Y Vacuum circuit breaker on 24kV outdoor column |
| 05/20/2009 | CN201242970Y Outdoor on-pole vacuum loaded switch falling fuse composite apparatus |
| 05/20/2009 | CN201242969Y Outdoor high-voltage SF6 can-type circuit breaker with automatic heat accompany device |
| 05/20/2009 | CN201242968Y Outdoor high-voltage isolating switch main knife striking apparatus |
| 05/20/2009 | CN101436488A On-off large parameter induction current outdoor high-voltage AC grounding switch |
| 05/20/2009 | CN101436487A Vacuum arc-extinguishing chamber |
| 05/20/2009 | CN101436486A Switching device equipped with a circuit breaker and a disconnecting switch and comprising shared activation means |
| 05/20/2009 | CN101436485A Minitype high voltage rotary isolation switch |
| 05/20/2009 | CN101436472A Permanent magnet drive mechanism |
| 05/19/2009 | US7535127 Solid state relay driver |
| 05/19/2009 | US7534976 Vacuum recloser |
| 05/14/2009 | WO2009060513A1 Switch |