| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 09/22/2010 | CN201590375U Permanent magnet vacuum circuit breaker with manual opening-closing device |
| 09/22/2010 | CN201590374U Outdoor high-voltage intelligent demarcation vacuum circuit breaker |
| 09/22/2010 | CN201590373U Low-voltage big-breaking capacity ceramic vacuum switch tube |
| 09/22/2010 | CN201590372U Fully-closed load switch |
| 09/22/2010 | CN1897199B 气体绝缘开关装置 Gas-insulated switchgear |
| 09/22/2010 | CN101840809A Vacuum circuit breaker with air cushioning |
| 09/22/2010 | CN101840808A Special circuit breaker of electrified railway |
| 09/21/2010 | CA2325301C Method and arrangement for minimizing electrical field stress in circuit interrupters and housings therefor |
| 09/16/2010 | WO2010103741A1 Overvoltage suppression device |
| 09/16/2010 | WO2010102989A1 Circuit for controlling an electromagnetic actuator for a vacuum switch |
| 09/16/2010 | US20100230388 Electrode for vacuum interrupter |
| 09/16/2010 | DE19882678B4 Anordnung zur Bestimmung des Schließzeitpunkts für eine Schalteinrichtung eines Mehrphasensystems Arrangement for determining the closing timing for a switching device of a multi-phase system |
| 09/16/2010 | DE10347452B4 Aktuator, Verfahren zur Herstellung des Aktuators und Leistungsschalter, der mit dem Aktuator ausgestattet ist Actuator, the actuator and method of manufacturing the circuit breaker which is equipped with the actuator |
| 09/16/2010 | CA2738677A1 Over-voltage suppression apparatus |
| 09/15/2010 | EP2228813A1 Medium or high voltage apparatus comprising a monitoring and chargig device for a capacitor used for driving a magnetic actuator |
| 09/15/2010 | EP2228812A1 Withdrawable device of main circuit for vacuum circuit breaker |
| 09/15/2010 | EP2228810A2 Circuit breaker with rebound preventor |
| 09/15/2010 | CN201584359U Gas buffer |
| 09/15/2010 | CN201584358U Fixing structure of shielding cylinder of glass vacuum switching tube |
| 09/15/2010 | CN201584357U Fusion welding resistant ceramic vacuum switch tube |
| 09/15/2010 | CN201584356U Ceramic vacuum switching tube |
| 09/15/2010 | CN201584355U Intelligent permanent-magnetic vacuum circuit breaker |
| 09/15/2010 | CN201584354U Bellows installation structure of SF6 gas insulated vacuum circuit breaker |
| 09/15/2010 | CN201584353U Transmission mechanism for outdoor high-voltage AC porcelain column SF6 circuit breaker |
| 09/15/2010 | CN201584306U Operating mechanism for circuit breaker |
| 09/15/2010 | CN1933078B Vacuum switchgear |
| 09/15/2010 | CN101834409A Intelligent medium voltage switch and broadband PLC (Programmable Logic Controller) communication network |
| 09/15/2010 | CN101834091A Load switch |
| 09/15/2010 | CN101834090A Cam matched with load property of 126kV vacuum circuit breaker |
| 09/15/2010 | CN101834089A Run/test position indicator device of vacuum circuit breaker |
| 09/15/2010 | CN101834088A Vacuum arc-extinguishing device for ultrahigh-voltage isolation |
| 09/15/2010 | CN101834087A Improved high-voltage breaker |
| 09/15/2010 | CN101834086A Electrode for vacuum interrupter |
| 09/15/2010 | CN101834085A Withdrawable device of main circuit for vacuum circuit breaker |
| 09/15/2010 | CN101833060A Positioning device for monitoring partial discharge of gas-insulater switchgear on line |
| 09/14/2010 | CA2267005C Test circuit for verifying operation of an arc fault detector |
| 09/09/2010 | US20100226057 Electronic vacuum switch with main parameters quickly settable also during operation of the plant under control |
| 09/09/2010 | US20100224594 Gas-insulated circuit breaker |
| 09/09/2010 | DE202010009448U1 Hochspannungsschaltvorrichtung High voltage switching device |
| 09/09/2010 | DE102009010899A1 Haltering für eine Vakuumschaltröhre und Vkuumschaltröhre Retaining ring for a vacuum interrupter and Vkuumschaltröhre |
| 09/08/2010 | EP2226824A1 Electrode contact member of vacuum circuit breaker and process for production of the same |
| 09/08/2010 | EP1522083B1 Electrical contact material and method for making same |
| 09/08/2010 | CN201577209U Electric heat-tracing device and sulfur hexafluoride breaker with electric heat-tracing device |
| 09/08/2010 | CN201576932U User demarcation intelligent load switch |
| 09/08/2010 | CN201576620U Actuating equipment of vacuum circuit breaker |
| 09/08/2010 | CN201576619U 24kv glass vacuum switch tube |
| 09/08/2010 | CN201576618U High-voltage ceramic vacuum switch tube |
| 09/08/2010 | CN201576617U Seal ring used for vacuum circuit breaker |
| 09/08/2010 | CN201576616U Vacuum breaker for high voltage ac power generator |
| 09/08/2010 | CN201576615U Horizontal vacuum breaker for high voltage ac power generator |
| 09/08/2010 | CN201576614U Device used for electric connection outside movable end of arc extinguishing chamber |
| 09/08/2010 | CN201576613U Starter transmission device |
| 09/08/2010 | CN201576612U SF6 operating mechanism |
| 09/08/2010 | CN201576597U 3300V and below 3300V alternating-current high-voltage isolator |
| 09/08/2010 | CN1602535B Method for predicting a future voltage and/or current curve |
| 09/08/2010 | CN101828242A Gas-insulated high-voltage circuit breaker with a relief duct which is controlled by an overflow valve |
| 09/08/2010 | CN101826414A Gas-insulated circuit breaker |
| 09/08/2010 | CN101826413A High-pressure vacuum contactor |
| 09/08/2010 | CN101826407A Arc-less switch and manufacturing method and using method thereof |
| 09/08/2010 | CN101825684A Intelligent vacuum circuit breaker online monitoring method |
| 09/07/2010 | US7790998 Vacuum insulated switchgear |
| 09/07/2010 | US7790994 Draw-out power cell disconnect and isolation mechanism with rack-out guide tray |
| 09/02/2010 | WO2010098699A1 Device for integration of the movable current collector in the vacuum arc - quenching chamber with a circuit breaker terminal |
| 09/02/2010 | WO2010097322A1 Switching device |
| 09/02/2010 | WO2010097287A1 Retaining ring for a vacuum switching tube and vacuum switching tube |
| 09/02/2010 | US20100219163 High-voltage circuit breaker having a switch for connection of a closing resistor |
| 09/02/2010 | US20100219162 Low-voltage, medium-voltage or high-voltage switchgear assembly having a short-circuiting system |
| 09/02/2010 | US20100219161 Gas-insulated high-voltage circuit breaker with a relief duct which is controlled by an overflow valve |
| 09/01/2010 | EP2224463A2 A gas insulated switchgear |
| 09/01/2010 | EP2223319A2 Insulation of a current interrupter of the vacuum bulb type by overmoulding |
| 09/01/2010 | EP2223318A1 Interrupter arrangement having a movable switching tube |
| 09/01/2010 | EP2223308A1 Weakly conducting nozzle for a gas circuit breaker and ptfe based material therefore |
| 09/01/2010 | CN201570436U Self-energy sulphur hexafluoride high-voltage circuit breaker |
| 09/01/2010 | CN201570435U Double-action arc extinguish chamber structure |
| 09/01/2010 | CN201570434U Dynamo-electric linkage actuating device of vacuum circuit breaker |
| 09/01/2010 | CN201570433U Anti-reverse mechanism of vacuum circuit breaker handle operating device |
| 09/01/2010 | CN201570432U Indoor high-voltage vacuum circuit breaker operation mechanism |
| 09/01/2010 | CN201570431U Wide trigger high-voltage switch tube |
| 09/01/2010 | CN201570430U High voltage vacuum circuit breaker on outdoor post provided with isolating switch |
| 09/01/2010 | CN201570429U Cam structure of vacuum circuit breaker |
| 09/01/2010 | CN201570428U Isolating switch for outdoor high-voltage alternating-current vacuum circuit breaker |
| 09/01/2010 | CN201570427U Sulfur hexafluoride switch gas-taking port gland |
| 09/01/2010 | CN201570426U Gas insulation metal enclosed switch |
| 09/01/2010 | CN201570425U Quick stopper for gas leakage |
| 09/01/2010 | CN201570397U Capacitive aging system for vacuum interrupters |
| 09/01/2010 | CN1910718B Switching device |
| 09/01/2010 | CN1835150B Electrical apparatus having a prechamber space, an arc runner and a current limiting arc quenching device |
| 09/01/2010 | CN101821828A Flow adjustment arrangement for buchholz relay |
| 09/01/2010 | CN101821827A Compact common-transmission circuit breaker having two aligned cut-off chambers |
| 09/01/2010 | CN101819904A Three-station vacuum arc extinguish chamber for isolated grounding |
| 09/01/2010 | CN101819903A Dynamic/static contact device of main circuit of load switch |
| 08/26/2010 | WO2010096290A1 Manual tripping device for circuit breaker |
| 08/26/2010 | WO2010095163A1 Electrical contact for vacuum valve and vacuum circuit breaker using the same |
| 08/26/2010 | DE10063255B4 Schaltvorrichtung mit einer Unterbrechungskammer Switching device with an interruption chamber |
| 08/26/2010 | CA2751698A1 Manual tripping device for circuit breaker |
| 08/25/2010 | EP2221845A1 Commutation type DC breaker |
| 08/25/2010 | EP2221844A1 Switching device |
| 08/25/2010 | EP2221838A1 Method, device and system for protecting an electrical appliance, as well as a transformer and a substation comprising such a device or system |
| 08/25/2010 | EP2220663A1 Heat dissipating means for circuit-breaker and circuit-breaker with such heat dissipating means |
| 08/25/2010 | EP2220662A1 Electric motor drive provided with electric energy accumulation for switch-devices |