| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 01/22/2009 | US20090020507 Vacuum insulated switchgear |
| 01/22/2009 | US20090020506 Electrical Switching Device |
| 01/21/2009 | EP2017866A1 Vacuum insulated switchgear |
| 01/21/2009 | EP2016603A1 Power switch, especially high-current switch |
| 01/21/2009 | EP2016601A1 Power switch, especially high-current switch |
| 01/21/2009 | CN201185152Y Vacuum circuit-breaker |
| 01/21/2009 | CN201184430Y Permanent magnetism hydraulic valve |
| 01/21/2009 | CN201184429Y Monostable permanent magnetism hydraulic valve for hydraulic pressure spring operating mechanism |
| 01/21/2009 | CN101350506A Vacuum insulated switchgear |
| 01/21/2009 | CN101350269A Permanent magnet type drive mechanism |
| 01/21/2009 | CN101350268A Permanent magnet type vacuum circuit-breaker |
| 01/21/2009 | CN101350267A High voltage power anti-incorrect manipulation deadlock lever |
| 01/21/2009 | CN101350257A Bistable permanent magnet mechanism |
| 01/21/2009 | CN101350256A Operation apparatus for three-position switch |
| 01/21/2009 | CN100454463C Manual switching-off device for permanent magnet switch operating mechanism |
| 01/21/2009 | CN100454462C Very high breaker in use for GIS |
| 01/21/2009 | CN100454461C Double-fracture combination column type superhigh voltage multiplier breaking circuit breaker |
| 01/21/2009 | CN100454458C Gradual damping oil buffer |
| 01/15/2009 | WO2009008257A1 Electric apparatus for electric power |
| 01/15/2009 | WO2009007203A1 Switchgear assembly with an outflow channel |
| 01/15/2009 | US20090014418 Electrical Switching Device with Potential Control |
| 01/15/2009 | US20090014417 Movable contactor for air circuit breaker with contact spring protecting mechanism |
| 01/15/2009 | DE19946223B4 Schaltstange für Hochspannungs-Leistungsschalter Shift rod for high-voltage circuit breaker |
| 01/15/2009 | DE102007042383B3 Switch pole with solid insulator and wear protection arrangement for use in the open air has field control element covering annular gap between outer circumference of input connector and inner circumference of through opening |
| 01/15/2009 | DE10029763B4 Vakuumschaltröhre Vacuum interrupter |
| 01/14/2009 | EP2015331A2 Operating mechanism with device preventing contact vibration for vacuum circuit breaker. |
| 01/14/2009 | EP1573767B1 Insulating material piece for an electrical high voltage device and method for production thereof |
| 01/14/2009 | CN201181675Y Connecting structure for spring operation mechanism and spline principal shaft of vacuum circuit breaker |
| 01/14/2009 | CN201181674Y Double-side sheet structure and manual energy accumulation apparatus of spring operating mechanism |
| 01/14/2009 | CN201181673Y Manual switch-off device of permanent magnet breaker |
| 01/14/2009 | CN201181672Y Breaker mechanism installation seat |
| 01/14/2009 | CN201181671Y Breaker of miniature spring operating mechanism |
| 01/14/2009 | CN201181652Y Interlocking mechanism component and air switch interlocking mechanism |
| 01/14/2009 | CN101345167A Method and apparatus for improving dynamic response ability of coil magnetic field to moving iron core |
| 01/14/2009 | CN101345157A Vacuum circuit breaker on 24kV outdoor column |
| 01/14/2009 | CN101345156A Demarcation switch |
| 01/14/2009 | CN100452271C Drive kinematics in a hybrid circuit-breaker |
| 01/14/2009 | CN100452261C Method and apparatus for on-off circuit safety |
| 01/13/2009 | US7476823 Current pause device for an electric power circuit interrupter |
| 01/08/2009 | WO2008135670A9 Bistable electromagnetic actuator, control circuit for a dual coil electromagnetic actuator, and dual coil electromagnetic actuator including such control circuit |
| 01/08/2009 | US20090008367 Switching chamber for a gas-insulated high-voltage switch |
| 01/08/2009 | DE102007031949A1 Schaltgeräteanordnung mit einem Abströmkanal Switchgear arrangement with an outflow channel |
| 01/08/2009 | DE102007031948A1 Switching device arrangement, has outlet channel for filling of switching gases from switching section and moved relative to switching section, and gas outlet openings dampened depending on starting and ending of movement of channel |
| 01/07/2009 | EP2011135A1 Method for the production of a contact piece, and contact piece for low-voltage, medium-voltage, high-voltage, and generator switchgear |
| 01/07/2009 | EP1595273A4 A self-fixturing system for a vacuum interrupter |
| 01/07/2009 | CN201178062Y AC high-voltage vacuum circuit breaker |
| 01/07/2009 | CN201178061Y Intelligent dual-power switching device |
| 01/07/2009 | CN201178044Y Mechanical locking apparatus of double electric power automatic converting switch |
| 01/07/2009 | CN201178042Y Large power spring operating mechanism |
| 01/07/2009 | CN201177071Y Electromagnetic hydraulic valve possessing self-defence capability |
| 01/07/2009 | CN101341563A Method and apparatus for the sonic detection of high pressure conditions in a vacuum switching device |
| 01/07/2009 | CN100449902C Inserting electric device, especially overvoltage discharger |
| 01/07/2009 | CN100449668C Breaking contactor with constant pressure blowoff of flames in use for breaker in extra high voltage |
| 01/07/2009 | CN100449667C Switching device |
| 01/06/2009 | US7473863 High voltage operating rod sensor and method of making the same |
| 01/02/2009 | DE102007044214B3 Arc extinguishing unit for line circuit breaker, has obstruction element i.e. plate, arranged in or at guide part between two guide bars such that arc cannot run constantly during locomotion of arc into guide part |
| 01/01/2009 | US20090000925 circuit breaker cradle with an interlock system and a method of using the same |
| 12/31/2008 | WO2009001778A1 Vacuum insulating device |
| 12/31/2008 | WO2009001660A1 Buffer type gas isolator |
| 12/31/2008 | EP1671343B1 Drive for a vacuum switch gear |
| 12/31/2008 | EP1292959B1 Vacuum interrupter with two contact systems |
| 12/31/2008 | CN201174352Y Micro 252kV outdoor high-voltage circuit breaker |
| 12/31/2008 | CN201174351Y High intensity cam mechanism for VRC vacuum contactor |
| 12/31/2008 | CN101336463A Switch state monitoring apparatus |
| 12/31/2008 | CN101335152A Method for enhance speed of permanent magnet mechanism of vacuum circuit-breaker and permanent magnet mechanism |
| 12/25/2008 | US20080314874 Vacuum Interrupter |
| 12/25/2008 | US20080314873 Switching chamber for a high-voltage switch having a heating volume for holding quenching gas produced by switching arcs |
| 12/24/2008 | EP2006871A2 Electromagnetic operating device for switch |
| 12/24/2008 | EP2005456A1 Electromagnetic actuator, in particular for a medium-voltage switch |
| 12/24/2008 | DE102007028205A1 Schaltpol für ein Hochspannungsnetz Switching pole for a high voltage power |
| 12/24/2008 | CN201170999Y On-site maintenance apparatus for electric power SF6 switch |
| 12/24/2008 | CN201170998Y Quenching chamber of circuit breaker capable of self-arc-extinguishing with single air chamber |
| 12/24/2008 | CN101331573A Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device |
| 12/24/2008 | CN101331572A Load interrupter for an encapsulated switchgear and permanent magnet system for a load interrupter |
| 12/24/2008 | CN101331571A Electric switchgear, particularly high-voltage circuit-breaker, comprising a housing |
| 12/24/2008 | CN101329965A 24 KV outdoor high-voltage vacuum breaker |
| 12/24/2008 | CN101329964A Non-SF6 gas insulative outdoor high voltage vacuum breaker |
| 12/24/2008 | CN101329386A Vacuum degree measuring instrument of non-dismount arc-extinguishing chamber vacuum switch |
| 12/18/2008 | WO2008151937A1 Switching pole for a high-voltage network |
| 12/18/2008 | WO2005078461A3 Lead-through with a power semi-conductor component |
| 12/18/2008 | US20080308532 Vacuum insulated switchgear |
| 12/18/2008 | US20080308531 Vacuum insulated switchgear |
| 12/17/2008 | EP2002456A1 Energy supply system and method related thereto |
| 12/17/2008 | CN201167058Y Side-installed type vacuum circuit-breaker |
| 12/17/2008 | CN101326606A Vacuum switch tube |
| 12/17/2008 | CN101326605A Electro-magnetic force driving actuator and circuit breaker using the same |
| 12/17/2008 | CN101325135A Spring operating mechanism |
| 12/11/2008 | WO2008116788A3 Device for monitoring vacuum |
| 12/11/2008 | US20080303352 Automatic charging and power management device |
| 12/11/2008 | US20080302765 Vacuum-Insulated Switching Device |
| 12/11/2008 | US20080302764 Contact backing for a vacuum interrupter |
| 12/11/2008 | US20080302763 Vacuum fault interrupter |
| 12/10/2008 | EP1999768A1 Insulating switching rod with a contact pressure arrangement comprising a plurality of helical compression springs wound in opposite senses |
| 12/10/2008 | EP1805774A4 Circuit interrupting device with a turnbuckle and weld break assembly |
| 12/10/2008 | CN201163595Y Porcelain case component of vacuum arc-extinguishing chamber |
| 12/10/2008 | CN201163594Y Indoor high voltage vacuum permanent magnet type breaker |
| 12/10/2008 | CN201163593Y 户外高压真空断路器 Outdoor high-voltage vacuum circuit breaker |
| 12/10/2008 | CN201163592Y 真空接触器 Vacuum contactor |
| 12/10/2008 | CN201163591Y Moving-type high-pressure AC vacuum contactor, fusible cut-out composite set |
| 12/10/2008 | CN201163590Y Lead screw nut speed reduction manpower operation mechanism |