| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/22/2011 | CN101527221B External GIS local discharge ultrahigh frequency monitoring sensor |
| 06/22/2011 | CN101409177B AC high voltage vacuum contactor |
| 06/22/2011 | CN101359550B Vacuum switch tube |
| 06/22/2011 | CN101154532B Indoor A. C. high voltage isolative switch |
| 06/21/2011 | US7964816 Interrupting chamber having two compression chambers |
| 06/16/2011 | WO2011070022A1 High-voltage circuit breaker with a removable screen for improving the field gradient |
| 06/16/2011 | WO2011031033A3 Gas-insulated switchgear for a high-voltage circuit breaker |
| 06/15/2011 | EP2333801A1 Device for the electrical connection of a busbar with an isolated electric feedthrough to a circuit breaker |
| 06/15/2011 | EP2332160A1 Cutoff chamber for high-voltage circuit breaker with improved arc quenching |
| 06/15/2011 | EP1899999B1 Electrical switchgear |
| 06/15/2011 | CN201868771U Environment-friendly solid all-insulated switch |
| 06/15/2011 | CN201868737U Fuse protector type disconnecting switch for installing bus |
| 06/15/2011 | CN201868322U 断路器永磁操动机构 Breaker permanent magnetic actuator |
| 06/15/2011 | CN201868321U Spring energy-storage operating mechanism of vacuum circuit breaker |
| 06/15/2011 | CN201868320U 10kV line vacuum switch |
| 06/15/2011 | CN201868319U On-post vacuum circuit breaker |
| 06/15/2011 | CN201868318U Double-power high-voltage vacuum breaker |
| 06/15/2011 | CN201868317U Solid-sealed pole of circuit breaker |
| 06/15/2011 | CN201868316U Air pipeline control device of circuit breaker |
| 06/15/2011 | CN201868315U Sulfur hexafluoride gas-filling device |
| 06/15/2011 | CN201868314U Three-station isolating/grounding switch, series high-voltage switch combined electrical equipment and gas-insulated metal-enclosed power transmission line |
| 06/15/2011 | CN201868280U Equipment for manufacturing pole part of circuit breaker |
| 06/15/2011 | CN201868279U Mounting die for vacuum arc distinguishing chamber |
| 06/15/2011 | CN102097250A Mounting structure and mounting method for brake separating spring of vacuum contactor |
| 06/15/2011 | CN102097249A Vacuum arc extinguish chamber for three-phase alternating-current high voltage vacuum contactor |
| 06/15/2011 | CN102097248A Vacuum circuit breaker with electromotive force compensation circuit |
| 06/15/2011 | CN102097247A Vacuum circuit breaker with electromotive force compensation circuit |
| 06/15/2011 | CN102097246A Rotational structure of vacuum on-load tap changer (OLTC) |
| 06/15/2011 | CN102097245A Three-phase AC (Alternating Current) high-voltage vacuum contactor with long service life |
| 06/15/2011 | CN102097244A Arc plate of partial-discharge sensor box for detecting ultrahigh frequency electromagnetic wave signals |
| 06/15/2011 | CN102097243A Installation method of SF6 gas breaker |
| 06/15/2011 | CN102097225A Breaker with permanent magnet mechanism |
| 06/15/2011 | CN101542662B A method and an apparatus for predicting the future behavior of currents in current paths |
| 06/15/2011 | CN101447367B Permanent magnet linear thrust operating mechanism used for vacuum circuit breaker |
| 06/15/2011 | CN101404228B Vacuum circuit breaker |
| 06/15/2011 | CN101226847B AC high voltage vacuum breaker |
| 06/09/2011 | WO2011067122A1 Circuit breaker arrangement |
| 06/09/2011 | WO2011066986A1 Magnetic actuator unit for a circuit-breaker arrangement |
| 06/09/2011 | DE202009018213U1 Dielektrisches Isolationsmedium A dielectric isolation medium |
| 06/09/2011 | DE102009057703A1 Leistungsschalteranordnung Power switch assembly |
| 06/09/2011 | DE102007038165B4 Elektromagnetischer Aktor The electromagnetic actuator |
| 06/08/2011 | EP2330708A1 Transformer inrush current suppression device |
| 06/08/2011 | EP2330609A1 Magnetic actuator unit for a circuit-braker arrangement |
| 06/08/2011 | CN201859810U Integrated type vacuum circuit breaker insulation barrel |
| 06/08/2011 | CN201859809U Solid sealed pole with abnormal soft connection |
| 06/08/2011 | CN201859808U Transmission mechanism protection case of tank circuit breaker |
| 06/08/2011 | CN201859807U State sensing device of oil-immersed load switch |
| 06/08/2011 | CN201859806U Shielding device for static contact seat of tank breaker |
| 06/08/2011 | CN201859805U Outdoor high-voltage alternating-current porcelain knob type SF6 circuit breaker |
| 06/08/2011 | CN102089845A Method and device for producing vacuum interrupters or assemblies of vacuum interrupters, and vacuum interrupter |
| 06/08/2011 | CN102089840A Hydraulic stored-energy spring mechanism |
| 06/08/2011 | CN102087929A Controller and system including a controller for detecting a failure thereof |
| 06/08/2011 | CN101651029B Vacuum vessel switching core used by on-load tap-changer |
| 06/08/2011 | CN101300654B Current interrupter device having a double compression chamber |
| 06/07/2011 | US7956306 High-voltage switch with a metal container filled with insulating gas |
| 06/03/2011 | WO2011064064A1 Method and apparatus for determination of wear to a contact element |
| 06/02/2011 | US20110127237 Gas insulated switchgear |
| 06/01/2011 | EP2328159A1 Method and device for determining the wear on a contact element |
| 06/01/2011 | DE202009018239U1 Schalteinrichtung mit dielektrischem Isolationsmedium Switching device with dielectric isolation medium |
| 06/01/2011 | DE102009033982B4 Vakuumschaltröhre Vacuum interrupter |
| 06/01/2011 | DE102009031598B4 Vakuumschaltröhre Vacuum interrupter |
| 06/01/2011 | CN201853648U Closing control mechanism of vacuum circuit breaker |
| 06/01/2011 | CN201853647U Hand one-way operating mechanism of vacuum load switch |
| 06/01/2011 | CN201853646U Monostable twin-coil permanent magnet mechanism |
| 06/01/2011 | CN201853645U High-voltage vacuum circuit breaker device and solid insulation permanent magnet operating ring network cabinet |
| 06/01/2011 | CN201853644U Full-control type high-voltage vacuum contactor |
| 06/01/2011 | CN201853643U High breaking vacuum load switch-fuse combined electrical appliance |
| 06/01/2011 | CN201853642U Vacuum load switch outgoing line |
| 06/01/2011 | CN201853641U Sulfur hexafluoride (SF6) gas insulated vacuum circuit breaker |
| 06/01/2011 | CN201853640U Insulating pull rod in SF6 (scale factor) switch product |
| 06/01/2011 | CN201853590U Switching operation rod with lighting function |
| 06/01/2011 | CN101582338B Bistable permanent magnetism operating mechanism control circuit |
| 06/01/2011 | CN101221865B Magnetic driven switch device of power system |
| 06/01/2011 | CN101221863B Double coil variable current control circuit of vacuum circuit breaker permanent magnet mechanism |
| 06/01/2011 | CN101217078B A permanent magnetic actuator vacuum circuit breaker assembly with series resistance |
| 06/01/2011 | CN101101823B Adaptable arc chute for circuit breaker |
| 05/26/2011 | WO2011061323A1 Valve arrangement |
| 05/26/2011 | WO2011061041A1 Valve arrangement |
| 05/26/2011 | WO2011060921A1 Medium voltage circuit breaker arrangement |
| 05/26/2011 | US20110120976 Pole part of a medium-voltage or high-voltage switch gear assembly, and method for its production |
| 05/26/2011 | US20110120975 Gas-insulated high-voltage switch |
| 05/26/2011 | DE19958645C5 Hybridleistungsschalter Hybrid circuit breaker |
| 05/25/2011 | EP2325859A1 Gas-isolated high voltage switch |
| 05/25/2011 | EP2325858A1 Medium Voltage circuit breaker arrangement |
| 05/25/2011 | CN201845697U Permanent-magnetic vacuum circuit breaker |
| 05/25/2011 | CN201845696U Isolation phase-change switch with vacuum breaks |
| 05/25/2011 | CN201845695U Plug for movable fit hole of lower cover of sulphur hexafluoride shell |
| 05/25/2011 | CN201845694U Upper cover of housing of high voltage load switch |
| 05/25/2011 | CN201845693U Lower cover for load switch shell |
| 05/25/2011 | CN201845692U Transmission device of 252kVGIS (gas insulated switchgear) isolating or grounding switch |
| 05/25/2011 | CN201845668U Three-station mechanism adopting double worm gear and worm |
| 05/25/2011 | CN102077312A Vacuum switching tube |
| 05/25/2011 | CN102077311A Pole part of a medium-voltage or high-voltage switchgear assembly, and method for its production |
| 05/25/2011 | CN102077310A Load interrupter comprising an arc extinguishing device |
| 05/25/2011 | CN102074410A One-phase vacuum circuit breaker with low operation power |
| 05/25/2011 | CN102074409A Sealing pole with irradiating device |
| 05/25/2011 | CN102074408A Intelligent high-voltage vacuum circuit breaker |
| 05/25/2011 | CN102074407A Breaker |
| 05/25/2011 | CN102074406A Gas-insulated high-voltage switch |
| 05/25/2011 | CN102074405A Rotary load switch contact arc extinguishing system of SF6 ring main unit |