| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 07/07/2011 | WO2011080546A1 Electrical ring main unit |
| 07/07/2011 | WO2011079926A2 A block of bushings of a three-phase rotary switch-disconnector |
| 07/07/2011 | US20110163755 Self-aligning test fixture for printed circuit board |
| 07/06/2011 | EP2341515A1 A block of bushings of a three-phase rotary switch-disconnector |
| 07/06/2011 | EP1629580B1 Switch assembly |
| 07/06/2011 | CN201893273U Three-position disconnecting switch |
| 07/06/2011 | CN201893272U Electrical interlocking mechanism of isolating switch |
| 07/06/2011 | CN201893271U Intelligent control device of isolating switch electric mechanism |
| 07/06/2011 | CN201893270U Switch base universal plate |
| 07/06/2011 | CN201893269U High-voltage disconnector contact component |
| 07/06/2011 | CN201893268U Transmission mechanism of disconnecting switch |
| 07/06/2011 | CN101248503B Contact assembly comprising a limiting element that restricts the deflection of the displaceable contact part |
| 07/05/2011 | US7974750 Cellular phone configured with off-board device capabilities and starter/charger and battery testing capabilities |
| 07/05/2011 | US7973432 Microscope system and control method for same |
| 06/30/2011 | US20110156719 Electrical insulation test apparatus |
| 06/29/2011 | EP2339603A2 Interlock apparatus of ground switch for vacuum circuit breaker |
| 06/29/2011 | CN201887337U Grounding mechanism for high-voltage switch equipment |
| 06/29/2011 | CN201886956U Indoor alternating-current high-voltage isolation switch |
| 06/29/2011 | CN201886955U Subway DC isolating switch |
| 06/29/2011 | CN201886954U Novel pole column type three-phase high-voltage isolating switch |
| 06/29/2011 | CN201886953U Large-capacity isolating switch |
| 06/29/2011 | CN201886952U Interlocking operation mechanism for switch cabinet |
| 06/29/2011 | CN201886951U Grounding switch and rear door interlocking device for high-voltage switch cabinet |
| 06/29/2011 | CN201886950U Connection structure of tension spring type balancing spring of double-arm folding high voltage alternating current isolating switch |
| 06/29/2011 | CN201886949U Strong-current locking device for earth switch of high-voltage switch cabinet |
| 06/29/2011 | CN201886948U 10 KV outdoor three-phase linkage isolating switch with earthing device |
| 06/29/2011 | CN201886947U 10KV outdoor pole mounted earth load switch |
| 06/29/2011 | CN102110956A Novel solid insulated switch |
| 06/29/2011 | CN101304164B Installation apparatus for 35Kv isolating switch controlling mechanism |
| 06/29/2011 | CN101226844B Three-pole apparatus for a medium or high voltage cubicle and associated cubicle comprising such a three-pole apparatus |
| 06/28/2011 | US7969158 Noise-reduction method for processing a test port |
| 06/28/2011 | US7969157 Fault detection circuit |
| 06/23/2011 | WO2011073158A1 Shielded high- or medium-voltage electrical equipment having improved mounting and including rotation shaft and movable contact driven by said shaft, and use in three-phase stations |
| 06/23/2011 | US20110148432 Method and device for checking the electrical insulation as well as a method and system for producing photovoltaic modules |
| 06/22/2011 | EP2335262A1 Electric switching apparatus provided with two switches, such as a busbar sectionalising switch and an earthing switch, and including a driving means common to the mobile contacts of the switches |
| 06/22/2011 | CN201877341U Interlocking device of ground switch operating mechanism |
| 06/22/2011 | CN201877340U Isolating switch control device of switch cabinet |
| 06/22/2011 | CN201877339U Operation mechanism with flexible interlocking device |
| 06/22/2011 | CN201877338U Graphite copper sleeve for disconnectors |
| 06/22/2011 | CN201877337U Self-locking device of outdoor isolating switch |
| 06/22/2011 | CN201877336U Transmission shaft device for high-voltage disconnecting switch |
| 06/22/2011 | CN201877335U Isolation switch for indoor high-voltage parallel capacitor device |
| 06/22/2011 | CN201877334U Combined 6 to 20 kV electric isolating switch and grounding switch |
| 06/22/2011 | CN101477904B Assembling apparatus for isolation conversion switch |
| 06/16/2011 | US20110140714 Determination of insulation resistance of an electric dc circuit |
| 06/15/2011 | EP2333800A1 A switch comprising a blade-type moving contact |
| 06/15/2011 | EP2333799A1 A switch comprising a blade-type moving contact |
| 06/15/2011 | CN201868313U High-voltage optical fiber isolation control short-circuiting switch |
| 06/15/2011 | CN201868312U Permanent magnet falling type switch |
| 06/15/2011 | CN201868311U Device for reducing temperature of fuse set of low-voltage isolating switch of distribution transformer |
| 06/15/2011 | CN201868310U 隔离开关 Disconnectors |
| 06/15/2011 | CN201868309U Locking operation mechanism of isolating switch |
| 06/15/2011 | CN201868308U Isolating switch base |
| 06/15/2011 | CN201868307U Rainproof cover of moving contact of isolating switch |
| 06/15/2011 | CN201868306U Online oil filling device of an outdoor high-voltage isolating switch base bearing |
| 06/15/2011 | CN201868305U Locking device of isolating switch |
| 06/15/2011 | CN201868304U Rainproof outdoor isolating switch |
| 06/15/2011 | CN201868303U Column isolating switch |
| 06/15/2011 | CN201868302U Isolating switch operating mechanism |
| 06/15/2011 | CN201868301U Shaft sleeve for isolating switch |
| 06/15/2011 | CN201868300U GN30-12/1250 indoor high-voltage isolating switch |
| 06/15/2011 | CN201868299U Outdoor AC high-voltage isolating switch |
| 06/15/2011 | CN201868298U High-voltage grounding and isolating switch |
| 06/15/2011 | CN102097236A Method for derusting altitude isolating switch |
| 06/15/2011 | CN101527220B Isolating switch with quick break function |
| 06/14/2011 | US7960977 Determining degraded insulating ability in insulation provided between two objects of an inductively operating element |
| 06/09/2011 | US20110133754 Test arrangement for impulse voltage testing of electrical high-voltage components |
| 06/09/2011 | US20110133751 Signal generating apparatus and test apparatus |
| 06/08/2011 | CN201859804U Heavy-current high-voltage alternating-current three-position disconnector |
| 06/08/2011 | CN201859803U Electric disconnector operating mechanism |
| 06/08/2011 | CN201859802U High-voltage switch conductive part made of dispersion copper |
| 06/08/2011 | CN201859580U Simulation disconnecting link for power training |
| 06/08/2011 | CN102089844A Two-column electrical disconnector |
| 06/08/2011 | CN102089843A Disconnector for switchgear |
| 06/08/2011 | CN101409173B Operating mechanism for tri-station isolating switch of gas insulated metal sealing switchgear |
| 06/08/2011 | CN101409172B Electrically-operated mechanism for middle-low-tension switch cabinet grounding switch |
| 06/01/2011 | CN201853639U Metal-packaged gas-insulated combined circuit breaking and grounding switch |
| 06/01/2011 | CN201853638U Solid insulating three-position electrical isolation device and isolation unit |
| 06/01/2011 | CN201853637U Disconnecting switch |
| 06/01/2011 | CN201853636U Special-shaped roller overrunning clutch |
| 06/01/2011 | CN201853635U Solid insulating independent grounding switch |
| 06/01/2011 | CN201852645U Disconnecting switch temperature anomaly detection device |
| 06/01/2011 | CN101404227B High voltage isolation switch |
| 06/01/2011 | CN101404226B High voltage ground switch |
| 05/31/2011 | US7952362 Device for measuring the loss factor |
| 05/25/2011 | CN201845691U Grounding switch and switch cabinet provided with same |
| 05/25/2011 | CN102074404A High-reliability outdoor high-voltage isolation switch |
| 05/24/2011 | US7948353 Power-circuit breaking device |
| 05/24/2011 | CA2379589C Locking assembly for a switch assembly |
| 05/19/2011 | DE202011004166U1 Kurzschlussschalter für Hochspannungs-Marderscheuchen im KFZ Shorting switch for high voltage marten devices in the car |
| 05/18/2011 | EP2218084B1 Disconnector for a switching device |
| 05/18/2011 | CN201838503U Interlocking device for grounding switch and rear door of high-voltage switch cabinet |
| 05/18/2011 | CN201838502U Grounding operating shaft sleeve for operating mechanism of high-tension switch |
| 05/18/2011 | CN201838501U Load disconnecting switch |
| 05/18/2011 | CN201838500U Operating device of three-station grounding disconnecting switch |
| 05/18/2011 | CN102064037A Combined type ground switch |
| 05/17/2011 | US7944212 Receptacle tester with text display |
| 05/12/2011 | US20110109321 Test apparatus and electrical device |
| 05/11/2011 | EP2319064A1 Two-column electrical disconnector |
| 05/11/2011 | EP2319063A1 Disconnector for switchgear |