| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 09/23/2009 | CN201315265Y High-voltage isolating switch |
| 09/23/2009 | CN201315264Y Base of high-voltage grounding switch |
| 09/23/2009 | CN101540241A Gear and rack type isolated switch |
| 09/22/2009 | CA2452860C Resistance assembly for hookstick operated switching assembly |
| 09/16/2009 | CN201311868Y Isolating switch and switch cabinet provided with isolating switch |
| 09/16/2009 | CN201311867Y Indoor high pressure isolating switch |
| 09/16/2009 | CN201311866Y Interlocking support of high voltage switch cabinet |
| 09/16/2009 | CN101533728A Assembling and disassembling device of high-voltage isolating switch static contact finger |
| 09/15/2009 | US7589289 Solid insulated disconnection switch and solid insulated switchgear using the same |
| 09/09/2009 | CN201307550Y Rotary interlock actuating mechanism of voltage switching cabinet |
| 09/09/2009 | CN201307549Y Rotary type isolating switch fixed contact |
| 09/09/2009 | CN101527220A Isolating switch with quick break function |
| 09/09/2009 | CN101527219A Protective shield of pole load switch |
| 09/03/2009 | WO2009108564A1 Mounting assembly |
| 09/03/2009 | US20090219035 Method and system for improved testing of transistor arrays |
| 09/03/2009 | CA2716379A1 Mounting assembly |
| 09/02/2009 | CN201302943Y Current circuit breaker |
| 09/02/2009 | CN201302942Y Conductive loop contact finger structure of disconnecting switch |
| 09/01/2009 | US7582989 Safety relay having independently testable contacts |
| 08/26/2009 | CN201298510Y Automatic brake |
| 08/26/2009 | CN201298489Y Mechanical interlock used for unlocking two locks with one key in isolating switch mechanism |
| 08/26/2009 | CN201298488Y Pile head fixed plate capable of replacing switch on post under 10KV load |
| 08/26/2009 | CN101515518A Combined electrical apparatus isolation earthing switch operating mechanism |
| 08/25/2009 | US7579843 Methods and apparatus for analyzing partial discharge in electrical machinery |
| 08/25/2009 | US7579570 High-voltage outdoor bushing configuration |
| 08/20/2009 | WO2009101464A1 A configurable circuit breaker |
| 08/19/2009 | EP2091057A1 Gas-insulated switchgear and assembly method thereof |
| 08/19/2009 | CN201294193Y Handle device for high-voltage circuit-breaker |
| 08/19/2009 | CN201294192Y Main shaft operation regulating lever for high voltage isolating switch |
| 08/19/2009 | CN201294191Y Conjunction structure of rotary isolation switch spindle nose and end girder |
| 08/19/2009 | CN201294190Y Link bar |
| 08/19/2009 | CN201294189Y Mechanism for operating motor of electric power switch equipment |
| 08/19/2009 | CN201294174Y Device for preventing press-button type switch from being touched by mistake |
| 08/19/2009 | CN101510475A Ultra rapid operation mechanism for high voltage switch |
| 08/18/2009 | US7576547 Measuring array |
| 08/18/2009 | US7576450 Regulated alternating current power supply |
| 08/13/2009 | US20090201029 Electronic component device testing apparatus |
| 08/13/2009 | DE102008036006B3 Handantrieb Hand drive |
| 08/12/2009 | CN201289974Y Device for filling oil for high tension apparatus |
| 08/12/2009 | CN201289965Y Looped network cabinet |
| 08/06/2009 | US20090195257 Method and device for monitoring a first voltage value |
| 08/05/2009 | CN201285989Y Novel looped network cabinet |
| 08/05/2009 | CN201285711Y Manual operating mechanism for electric switch equipment |
| 08/05/2009 | CN101499383A Electric connection device between contact tubes on high-voltage switch assembly |
| 08/05/2009 | CN101499382A Electric connection device used for high-voltage switch assembly |
| 07/29/2009 | CN201282064Y Misoperation resistance prewarning device for transforming plant |
| 07/29/2009 | CN201282063Y Rotational structure of isolation switch |
| 07/29/2009 | CN201282062Y Three-station grounding switch main shaft with movable contact capable of being mounted |
| 07/29/2009 | CN100520988C Device for detecting interferences or interruptions of the inner fields smoothing layer of medium or high voltage cables |
| 07/22/2009 | CN201278326Y Manual operation interlocking apparatus for high-voltage switch three-position mechanism |
| 07/22/2009 | CN201278325Y Mechanical interlocking apparatus for high-voltage isolation switch |
| 07/22/2009 | CN101490780A Switch for a switching unit for energy supply and distribution |
| 07/22/2009 | CN101490779A Electrical switching device having contact piece displaceable along an axis of movement |
| 07/21/2009 | US7564150 Control device for an electrical appliance and control method |
| 07/16/2009 | US20090180527 Measuring apparatus, measuring method, recording medium, and test apparatus |
| 07/15/2009 | CN201274252Y DC ultra-high-voltage isolation switch |
| 07/15/2009 | CN101484960A Ground disconnector |
| 07/09/2009 | US20090174563 Battery identification for battery packs with inter-cell taps |
| 07/09/2009 | DE19857170B4 Schaltgerät Switchgear |
| 07/08/2009 | CN201270219Y Center breaking type high-voltage isolation disconnecting link |
| 07/02/2009 | WO2009080472A1 Three-positions disconnector for medium voltage panels |
| 07/02/2009 | US20090166168 Grounding switch |
| 07/01/2009 | CN201266569Y High voltage power anti-incorrect manipulation closedown lever |
| 07/01/2009 | CN201266568Y Closed type air switch |
| 07/01/2009 | CN201266567Y Special-purpose tool for dismounting isolation switch sensing finger |
| 06/30/2009 | US7554336 Method for measuring the insulation resistance in an IT network |
| 06/30/2009 | US7554318 Transient reversing voltage detecting circuit |
| 06/24/2009 | EP2073332A1 Three-positions disconnector for medium voltage panels |
| 06/24/2009 | EP2073229A1 Pyrotechnical short-circuiting switch with self-tightening electric contacts and assembly for protection against internal arcs comprising such a short-circuiting switch |
| 06/23/2009 | CA2303531C Electrical power distribution switch |
| 06/18/2009 | WO2009075703A2 Pipeline security system |
| 06/18/2009 | WO2009074501A1 Disconnector for a switching device |
| 06/18/2009 | CA2699182A1 Pipeline security system |
| 06/17/2009 | CN201259861Y Middle disposed high-voltage switch cabinet grounding switch controlling mechanism interlocking apparatus |
| 06/17/2009 | CN101461020A Polyphase switch panel for medium-voltage switchgear assemblies |
| 06/17/2009 | CN101459011A Fuse body group cover for load isolating switch |
| 06/17/2009 | CN101459010A GW5 type isolation switch insulation column rotary limitation construction |
| 06/17/2009 | CN101459009A Switch device for fast disconnecting closed load isolating switch |
| 06/17/2009 | CN101459008A Contact structure for separating switch touching knife and stationary contact |
| 06/16/2009 | US7547993 Radiofrequency double pole single throw switch |
| 06/10/2009 | EP2068333A2 Support for an electrical device provided with a control device and surveillance device comprising such a support |
| 06/10/2009 | CN201256106Y High voltage switch operation mechanism |
| 06/10/2009 | CN201256105Y Multifunctional error operation preventing isolation switch suitable for motor soft starting cabinet |
| 06/10/2009 | CN201256104Y High capacity isolation switch suitable for motor soft starting cabinet |
| 06/10/2009 | CN201256103Y External pressing contact tip mechanism |
| 06/10/2009 | CN101452791A Electric connection device of outdoor high-voltage isolating switch |
| 06/03/2009 | CN201252037Y Interlocking device for cable vault door |
| 06/03/2009 | CN201252036Y Electrically operated device for a switch cabinet grounding switch |
| 06/03/2009 | CN101447360A Isolating switch for underground high-voltage power distribution device |
| 05/27/2009 | CN201247920Y Interlocking device of switch cabinet |
| 05/27/2009 | CN201247720Y Novel monopole isolation switch |
| 05/27/2009 | CN201247719Y Outdoor vertical hanging monopole isolation switch |
| 05/27/2009 | CN201247718Y Electric operation type fuse isolation switch electric appliance |
| 05/27/2009 | CN201247717Y Interlocking mechanism of switch cabinet |
| 05/27/2009 | CN101443871A Switching device, in particular fused interrupters |
| 05/27/2009 | CN101441943A Electric connection device for high voltage isolating switch |
| 05/21/2009 | US20090128163 Simulated battery logic testing device |
| 05/20/2009 | CN201242967Y Outdoor high-voltage isolating switch operating mechanism |
| 05/20/2009 | CN201242966Y Outdoor high-voltage isolating switch main knife |
| 05/20/2009 | CN201242965Y Outdoor high-voltage isolating switch grounding knife |