| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 09/09/2009 | EP2099047A1 Combustion contact device and output switch |
| 09/09/2009 | EP2097915A2 High-voltage disconnecting circuit breaker and method of operating the same |
| 09/09/2009 | EP2097914A1 Circuit breaker |
| 09/09/2009 | CN201307551Y Outdoor high-voltage alternating-current ground switch with high-parameter switching-induced current |
| 09/09/2009 | CN101527223A High-voltage vacuum breaker |
| 09/09/2009 | CN101527222A Corrugated pipe for vacuum circuit breaker |
| 09/09/2009 | CN101527221A External GIS local discharge ultrahigh frequency monitoring sensor |
| 09/09/2009 | CN101527209A A switching device |
| 09/09/2009 | CN101527206A Hydraulic operating mechanism of high voltage circuit breaker |
| 09/09/2009 | CN100538952C High-voltage loadbreak switch with enhanced arc suppression |
| 09/08/2009 | US7586058 Electrical switching apparatus, and ARC hood assembly and chimney therefor |
| 09/08/2009 | US7586057 Electrical switching apparatus and vented case therefor |
| 09/03/2009 | WO2009108729A1 Improved vacuum interrupter switch for power distribution systems |
| 09/03/2009 | WO2009108544A1 Insulator integrated power supply |
| 09/03/2009 | WO2009106731A2 Insulation of a current interrupter of the vacuum bulb type by overmoulding |
| 09/03/2009 | US20090218319 Vacuum Circuit Breaker |
| 09/03/2009 | US20090218318 Vacuum switching chamber for medium-voltage switchgear assemblies |
| 09/03/2009 | US20090218208 Disconnector and a support insulator therefor |
| 09/03/2009 | DE102008004870A1 Mit einem Schutzschalter mechanisch koppelbares Modul With a circuit breaker mechanically linkable module |
| 09/02/2009 | EP1938350B1 Dielectric insulation seal for a vacuum tube |
| 09/02/2009 | CN201302948Y Vacuum monitoring system of vacuum circuit breaker |
| 09/02/2009 | CN201302947Y Modification on transmission structure between chain wheel and driving wheel of high voltage vacuum breaker |
| 09/02/2009 | CN201302946Y Permanent magnetic actuator for vacuum circuit breaker supplied with power by super capacitor |
| 09/02/2009 | CN201302945Y Integrated high voltage alternating current vacuum circuit breaker |
| 09/02/2009 | CN201302944Y GIS slitter knife with position indicator |
| 09/02/2009 | CN101523537A Vacuum circuit breaker |
| 09/02/2009 | CN101523536A Vacuum interrupter chamber for medium-voltage switchgear |
| 09/02/2009 | CN101523535A Solenoid controlled opening/closing apparatus |
| 09/02/2009 | CN101521405A Intelligent double-power supply switching device |
| 09/02/2009 | CN101521123A Medium-voltage switch |
| 09/02/2009 | CN101521097A Composite vacuum arc-extinguishing on-load voltage regulation switch of power transformer |
| 09/02/2009 | CN100536054C Rotary electric arch pulse power switch |
| 09/02/2009 | CN100536053C Vacuum loading switch |
| 09/01/2009 | US7582989 Safety relay having independently testable contacts |
| 08/27/2009 | WO2009103657A1 Vacuum power switch |
| 08/27/2009 | US20090212022 Circuit Breaker Compartment Arc Flash Venting System |
| 08/27/2009 | DE102008027274B3 Leistungstransformator mit Stufenschalter Power transformer with tap changer |
| 08/26/2009 | EP1952414B1 Vacuum insulated switchgear |
| 08/26/2009 | CN201298500Y Plateau type high voltage AC vacuum contactor |
| 08/26/2009 | CN201298499Y Auxiliary switchboard of vacuum circuit breaker |
| 08/26/2009 | CN201298498Y Jumper wire board for vacuum circuit breaker |
| 08/26/2009 | CN201298497Y Under-voltage release for vacuum circuit breaker |
| 08/26/2009 | CN201298496Y Loading plate of vacuum circuit breaker wiring board |
| 08/26/2009 | CN201298495Y Vacuum circuit breaker capable of removing switching electromagnet conveniently |
| 08/26/2009 | CN201298494Y Indoor high-voltage vacuum circuit-breaker |
| 08/26/2009 | CN201298493Y Indoor AC high-voltage vacuum circuit-breaker |
| 08/26/2009 | CN201298492Y Mechanical interlock of high voltage electric appliance switch cabinet |
| 08/26/2009 | CN201298491Y Air insulated power distribution board of a medium-voltage switch device |
| 08/26/2009 | CN201298490Y Gas insulation type load switch |
| 08/26/2009 | CN201298463Y Driving structure for circuit breaker |
| 08/26/2009 | CN201298461Y Breaker hydraulic mechanism |
| 08/26/2009 | CN101517683A Breaker open/closure controller |
| 08/26/2009 | CN101515520A Intelligent self-diagnosis medium-pressure vacuum circuit breaker |
| 08/26/2009 | CN101515519A Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same |
| 08/25/2009 | US7579572 High current switch and method of operation |
| 08/25/2009 | US7579570 High-voltage outdoor bushing configuration |
| 08/19/2009 | EP2091058A1 Apparatus and method for compressing exciting inrush current of transformer |
| 08/19/2009 | CN201294199Y Manual brake-dividing device for high voltage AC vacuum circuit breaker |
| 08/19/2009 | CN201294198Y Spring operation mechanism for vacuum circuit-breaker |
| 08/19/2009 | CN201294197Y Assembling structure for contact compression spring of medium-pressure vacuum circuit breaker |
| 08/19/2009 | CN201294196Y Indoor vacuum circuit breaker |
| 08/19/2009 | CN201294195Y Miniaturisation high voltage permanent magnet vacuum circuit breaker module |
| 08/19/2009 | CN201294194Y Arc initiating device of high voltage isolating switch |
| 08/19/2009 | CN201294165Y External connection constant voltage flushing device for hydraulic mechanism |
| 08/19/2009 | CN201294164Y Working cylinder for preventing high-voltage circuit breaker from being divided slowly |
| 08/19/2009 | CN100530481C A 252kV single-break vacuum interrupter |
| 08/19/2009 | CN100530480C High-voltage vacuum circuit breaker with mono-fracture voltage to 252kV |
| 08/19/2009 | CN100530479C Outdoor high-voltage open combined electri cappliance |
| 08/19/2009 | CN100530478C Telescopic combined moving iron core permanent magnet operation mechanism |
| 08/19/2009 | CN100530467C Monostable self-locking type air gas variable permanent magnet operation device |
| 08/19/2009 | CN100530465C Vacuum interrupter and system and method for releasing magnetic field distortion |
| 08/18/2009 | US7577534 Risk assessment of metal vapor arcing |
| 08/18/2009 | CA2498775C Method and apparatus for detecting wear in components of high voltage electrical equipment |
| 08/13/2009 | WO2009098122A1 Arrangement comprising a movable blocking element |
| 08/13/2009 | US20090200273 Mounting Base With Arc Plenum |
| 08/13/2009 | US20090200272 Arc-extinguishing processed resin article and circuit breaker that uses same |
| 08/13/2009 | US20090200271 Self-Adjusting Plug-In Line Terminal |
| 08/13/2009 | US20090200270 Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same |
| 08/13/2009 | DE19951042B4 Unterbrecher-Betätigungsmechanismus mit klappbarer Kontaktarm-Verbindungsanordnung Breaker operating mechanism with foldable contact connector assembly |
| 08/13/2009 | DE10204042B4 Leistungsschalter Circuit breaker |
| 08/12/2009 | EP2088609A2 Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same |
| 08/12/2009 | EP2088606A2 Circuit breaker |
| 08/12/2009 | EP2087498A1 High-voltage circuit breaker comprising a rotary arc |
| 08/12/2009 | CN201289817Y Looped network cabinet loop load switch |
| 08/12/2009 | CN201289816Y Outdoor high-voltage permanent magnet type vacuum circuit breaker |
| 08/12/2009 | CN201289815Y High voltage vacuum circuit breaker |
| 08/12/2009 | CN201289814Y Permanent magnet type vacuum circuit-breaker |
| 08/12/2009 | CN201289813Y Sulfur hexafluoride gas-filled forcer device for high-voltage circuit-breaker |
| 08/12/2009 | CN201289812Y Operating mechanism of load switch |
| 08/12/2009 | CN201289811Y Directly dynamic seal device for high-voltage circuit breaker |
| 08/12/2009 | CN201289810Y Box type intelligent double power transfer switch |
| 08/12/2009 | CN201289797Y Permanent magnet type double power supply transfer switch |
| 08/12/2009 | CN201289796Y Permanent magnet drive mechanism |
| 08/12/2009 | CN101504895A Novel air pressing type load switching unit |
| 08/12/2009 | CN101504894A Intelligent high voltage duplicate power source converting switch |
| 08/06/2009 | US20090194510 Switching device, in particular power switching device |
| 08/06/2009 | US20090194403 Heavy-duty circuit breaker with a housing |
| 08/05/2009 | EP2085995A1 Vacuum bulb for an electric cut-off device at least providing the function of a disconnecting switch |
| 08/05/2009 | CN201285989Y Novel looped network cabinet |
| 08/05/2009 | CN201285733Y Solid sealed pole |