| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 01/06/2010 | EP2141780A1 Phase control switch and switching pole control method in phase control switch |
| 01/06/2010 | EP2141720A1 Vacuum switch and vacuum switchgear |
| 01/06/2010 | EP2140468A1 Method for securing a getter for a vacuum switching tube and vacuum switching tube |
| 01/06/2010 | EP2140467A2 Device for monitoring vacuum |
| 01/06/2010 | CN201378685Y Low-voltage distribution box |
| 01/06/2010 | CN201378541Y Novel load switch |
| 01/06/2010 | CN101622683A Bistable electromagnetic actuator, control circuit for a dual coil electromagnetic actuator, and dual coil electromagnetic actuator including such control circuit |
| 01/06/2010 | CN101620948A Vacuum switch and vacuum switchgear |
| 01/05/2010 | US7642480 Actuating the contacts of an interrupting chamber in opposite directions via an insulating tube |
| 01/05/2010 | US7642478 Device for controlling an electric power cutoff device |
| 12/31/2009 | US20090321393 Current-limiting arc-quenching device |
| 12/31/2009 | US20090321392 Circuit Breaker |
| 12/31/2009 | DE102008024419B3 Schaltkammer Switching chamber |
| 12/30/2009 | WO2009156133A1 Pole part of a medium-voltage or high-voltage switchgear assembly, and method for its production |
| 12/30/2009 | EP2139016A1 Pole part of a medium-voltage or high-voltage switchgear assembly, and method for its production |
| 12/30/2009 | EP2137749A1 Device for protecting converter modules |
| 12/30/2009 | CN201374280Y Four-bar mechanism of horizontal vacuum breaker |
| 12/30/2009 | CN201374279Y Secondary control circuit board of vacuum circuit breaker |
| 12/30/2009 | CN201374278Y Vacuum circuit breaker with long standby time |
| 12/30/2009 | CN201374277Y Breaker with sulfur hexafluoride arc extinguish chamber and permanent magnetic mechanism |
| 12/30/2009 | CN201374269Y Static contact |
| 12/30/2009 | CN201374264Y Combination appliance of isolation switch and vacuum circuit breaker |
| 12/30/2009 | CN201374260Y Spatial linkage transmission device of spring operation mechanism |
| 12/30/2009 | CN101615525A Metal-hydrate containing arc-extinguishing compositions and methods |
| 12/30/2009 | CN101615524A Single phase permanent magnetic mechanism for vacuum circuit breaker |
| 12/30/2009 | CN100576402C A vacuum breaker for dual stabilized permanent magnetic machine |
| 12/30/2009 | CN100576401C Electrical switchgear |
| 12/30/2009 | CN100576391C Spring operating mechanism |
| 12/30/2009 | CN100575962C Arc root current density distribution test method and device |
| 12/29/2009 | US7639460 Switching apparatus and method for varying an impedance of a phase line of a segment of an electrical power line |
| 12/24/2009 | US20090314746 Arc-quenching core assembly |
| 12/23/2009 | WO2009153583A1 Apparatus for automatic disconnection of current limiter |
| 12/23/2009 | WO2009153397A1 Controller unit for switching device |
| 12/23/2009 | WO2009153396A1 Tripping assembly for switching device |
| 12/23/2009 | WO2009153395A1 Controller unit for switching device |
| 12/23/2009 | EP2136382A1 Apparatus for automatic disconnection of current limiter |
| 12/23/2009 | CN201369289Y Device for manual brake closing and separating and lock catch protection thereof for high-pressure vacuum permanent magnetic circuit breaker |
| 12/23/2009 | CN201369288Y Insulating pull rod and vacuum breaker with same |
| 12/23/2009 | CN201369287Y Outdoor insulation high-voltage vacuum breaker |
| 12/23/2009 | CN201369286Y 40.5 KV high-insulation vacuum switching pipe |
| 12/23/2009 | CN201369285Y 40.5 KV vacuum switching pipe with internal shielding tube |
| 12/23/2009 | CN201369284Y Large creep distance seal terminal |
| 12/23/2009 | CN201369283Y Recovering and refilling device for sulfur hexafluoride gas |
| 12/23/2009 | CN201369282Y SF6 circuit breaker arc extinguishing chamber air cylinder running-in device |
| 12/23/2009 | CN201369281Y Switch linked device |
| 12/23/2009 | CN201369253Y Hand-operating switch |
| 12/23/2009 | CN201369250Y Bistable unicoil permanent magnetic actuator |
| 12/23/2009 | CN201369248Y Hydraulic operating mechanism for high-voltage AC circuit breaker |
| 12/23/2009 | CN201367463Y Copper element pickling tooling device for vacuum arc extinguish chamber |
| 12/23/2009 | CN101609983A Restrain device and control method for excitation inrush current of transformer |
| 12/23/2009 | CN101609753A Arc-extinguishing commutation switch and manufacture method thereof |
| 12/23/2009 | CN100573766C Electric device with compressed insulating gas comprising a composite insulator provided with a window for observation of the contacts |
| 12/23/2009 | CA2728221A1 Controller unit for switching device |
| 12/23/2009 | CA2727419A1 Controller unit for switching device |
| 12/23/2009 | CA2727418A1 Tripping assembly for switching device |
| 12/17/2009 | WO2009149749A1 A dc current breaker |
| 12/17/2009 | US20090308845 Arc containment device and method |
| 12/17/2009 | CA2726065A1 A dc current breaker |
| 12/16/2009 | EP2133897A1 Device for controlling and pressurising a switch for an electric cut-off device with at least two positions |
| 12/16/2009 | EP2132757A1 Gas-insulated switchgear device |
| 12/16/2009 | CN201364855Y Vacuum switch tube |
| 12/16/2009 | CN201364854Y Double-fracture vacuum fling-cut switch |
| 12/16/2009 | CN201364853Y Touchable vacuum circuit breaker |
| 12/16/2009 | CN201364852Y Outdoor GIS circuit breaker |
| 12/16/2009 | CN201364851Y Permanent magnet swing-angle motor actuator of high-voltage circuit breaker |
| 12/16/2009 | CN201364850Y Cylindrical linear induction motor control device of high-voltage circuit breaker |
| 12/16/2009 | CN201364849Y Permanent magnet linear motor actuator of high-voltage circuit breaker |
| 12/16/2009 | CN201364836Y Tooling die for movable contact of vacuum circuit breaker |
| 12/16/2009 | CN201364835Y Analog bubble of vacuum arc extinguishing chamber |
| 12/16/2009 | CN201364834Y Mounting instrument for switch-on spring of vacuum circuit breaker |
| 12/16/2009 | CN101604824A Outdoor 27.5 kV fixedly-sealed type vacuum modularized electric appliance for electrified railway |
| 12/16/2009 | CN101604595A High voltage circuit breaker |
| 12/16/2009 | CN101604594A High-voltage rotating type integrated switch |
| 12/16/2009 | CN101604585A High-voltage loadbreak switch with enhanced arc suppression |
| 12/15/2009 | US7633365 Circuit breaker apparatus |
| 12/10/2009 | WO2009147034A1 Vacuum interrupter |
| 12/10/2009 | US20090302006 Mechanically interlocked transfer switch |
| 12/10/2009 | DE102008026799A1 Vakuumschaltröhre Vacuum interrupter |
| 12/09/2009 | EP2130209A1 Bistable electromagnetic actuator, control circuit for a dual coil electromagnetic actuator, and dual coil electromagnetic actuator including such control circuit |
| 12/09/2009 | EP1554742B1 Production of a circuit-breaker pole, insulated by a solid material |
| 12/09/2009 | CN201359965Y Secondary auxiliary switch interlocking mechanism of vacuum breaker |
| 12/09/2009 | CN201359964Y Closing transmission mechanism of vacuum circuit breaker |
| 12/09/2009 | CN201359963Y Sucking disc type electromagnetic mechanism of vacuum breaker |
| 12/09/2009 | CN201359962Y Fixed switch arc suppression device |
| 12/09/2009 | CN201359961Y Lower line-outgoing connecting mechanism of vacuum circuit breaker |
| 12/09/2009 | CN201359960Y Overcurrent device for vacuum circuit breaker |
| 12/09/2009 | CN201359959Y Electromagnet installing box for vacuum circuit breaker |
| 12/09/2009 | CN201359958Y Gas circuit integrated control system of vacuum circuit breaker |
| 12/09/2009 | CN201359957Y Vacuum circuit breaker |
| 12/09/2009 | CN201359956Y Combined medium-voltage vacuum circuit breaker |
| 12/09/2009 | CN201359955Y Can-type breaker |
| 12/09/2009 | CN201359917Y Double-track cam disc |
| 12/09/2009 | CN201359916Y Parallel connection structure of horn contacts |
| 12/09/2009 | CN201359915Y Vacuum tube switch core of on-load tap switch |
| 12/09/2009 | CN201359913Y On-load tap switch with phase-controlled permanent magnet mechanism |
| 12/09/2009 | CN201359912Y Lever drive mechanism of vacuum tube |
| 12/09/2009 | CN101601111A Phase control switchgear |
| 12/09/2009 | CN101599391A Novel single-fracture single-cylinder self energy high pressure sulfur hexafluoride breaker arc extinguish chamber |
| 12/09/2009 | CN101599390A Community terminal highly and lowly distributed GIS high pressure sulfur hexafluoride breaker arc extinguish chamber |
| 12/09/2009 | CN101599389A Double acting self energy thermal expansion type high pressure sulfur hexafluoride breaker arc extinguish chamber |