| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 01/07/2014 | US8624136 Cable termination systems and isolating apparatus for electrical power transmission conductors and methods using the same |
| 01/03/2014 | WO2014001029A1 Three-position load isolating switch for medium-voltage switchgear assemblies |
| 01/01/2014 | EP2678875A1 Device and method for checking a control signal intended for a disconnecting switch |
| 01/01/2014 | CN203377155U Ring main unit phase-deficient operation-prevention load switch tripping device |
| 01/01/2014 | CN203377154U Close position fast adjustable type static contact of high voltage isolation switch |
| 01/01/2014 | CN103489693A High voltage distribution cabinet operation shaft safety interlocking mechanism |
| 01/01/2014 | CN103489692A Manual interlocking device of three-station mechanism |
| 01/01/2014 | CN103489691A Interlocking mechanism of operation shaft and back door in high voltage distribution cabinet |
| 01/01/2014 | CN101625937B Cut-off device for separating or connecting two parts of an electric circuit, including a voltage transformer |
| 12/31/2013 | US8618813 Circuit fault detecting device and method |
| 12/31/2013 | CA2645268C Method for grounding a high voltage electrode |
| 12/25/2013 | EP2677530A2 Linear actuating earthing switch |
| 12/25/2013 | EP1991999B1 Electrical switching device |
| 12/25/2013 | CN203367841U Solid insulating ring main unit |
| 12/25/2013 | CN203367128U Isolation switch and electric conduction return circuit structure thereof |
| 12/25/2013 | CN203367127U Built-in operating mechanism of ring network cabinet |
| 12/25/2013 | CN203367126U Locomotive high-pressure isolation switch based on pneumatic control |
| 12/25/2013 | CN203367125U Switch moving blade |
| 12/25/2013 | CN203367124U Isolation switch and transition disc thereof |
| 12/25/2013 | CN203367123U Ultra-fast earthing switch for switchgear |
| 12/25/2013 | CN203367122U Folding arm type high-voltage isolation switch |
| 12/25/2013 | CN203367121U High-voltage isolation switch base |
| 12/25/2013 | CN203367120U Insulating grounding switch device and solid insulating switch with the same |
| 12/25/2013 | CN203367119U Folding arm type insulating switch capable of realizing conversion of different angles |
| 12/25/2013 | CN203367118U Three-position isolation grounding switch |
| 12/25/2013 | CN203367117U SFDG lower-housing lower port |
| 12/25/2013 | CN103474983A High voltage and great current direct-current circuit breaker and control method thereof |
| 12/25/2013 | CN103474284A Three-work-station dual-ground-connection load switch |
| 12/25/2013 | CN102543550B Direct current isolation switch for rail transit |
| 12/25/2013 | CN102368445B Three-working-position isolation switch |
| 12/18/2013 | EP2160805B1 Radio unit with rf switch device |
| 12/18/2013 | CN203351488U Low voltage isolating switch fuse |
| 12/18/2013 | CN203351487U High voltage load switch one-piece mandrel rack |
| 12/18/2013 | CN203351486U Electric grounding switch |
| 12/18/2013 | CN203351485U Surface contact rapid grounding switch |
| 12/18/2013 | CN203351482U Outdoor alternating-current high-voltage isolation switch |
| 12/18/2013 | CN103456548A GW6B type disconnecting switch open-type transmission case |
| 12/18/2013 | CN101969006B Method for improving converted current switching capability of ultra-high voltage alternating current open isolating switch |
| 12/11/2013 | CN203339496U Live anti-misoperation grounding switch device for high-voltage switch cabinet |
| 12/11/2013 | CN203339043U Withstand voltage structure for earthing switch |
| 12/11/2013 | CN203339042U Isolation switch having auxiliary switch |
| 12/11/2013 | CN203339041U Bird nesting preventer with disconnecting link universal joint |
| 12/11/2013 | CN203339040U Three-station isolation switch position sensing device |
| 12/11/2013 | CN203339039U Grounding component of isolating switch |
| 12/11/2013 | CN203339038U High-voltage isolating switch heating apparatus |
| 12/11/2013 | CN103441023A High-voltage isolating switch |
| 12/11/2013 | CN102709100B Three-station isolating grounding switch |
| 12/11/2013 | CN102280296B High-voltage isolation switch with contact finger function and manufacturing method thereof |
| 12/11/2013 | CN102148108B Closing/opening operating mechanism for upper and lower isolating switches and grounding switch and switch cabinet |
| 12/10/2013 | US8604806 Method for testing mask articles |
| 12/05/2013 | DE102013104321A1 Manueller Service-Trennschalter mit integrierter Vorladefunktion Manual service disconnect switch with integrated precharge |
| 12/04/2013 | EP2670009A1 Switch |
| 12/04/2013 | DE202012103263U1 Fahrleitungstrennschalter Catenary disconnectors |
| 12/04/2013 | CN203325785U High-voltage switch interlocking device |
| 12/04/2013 | CN203325784U High-voltage disconnecting switch |
| 12/04/2013 | CN203325783U Isolation switch with ice-melting short circuit and grounding switching functions |
| 12/04/2013 | CN203325750U High-voltage switch box body |
| 12/04/2013 | CN103430268A Switch disconnector arrangement |
| 12/04/2013 | CN103426678A Three-position transmission device |
| 12/04/2013 | CN103426677A Novel three-position driving device |
| 12/04/2013 | CN103426661A Bidirectional limiting and locking device of high-voltage electrical appliance operating mechanism |
| 12/04/2013 | CN102360980B Three-working-position isolation switch |
| 12/04/2013 | CN102254729B Moving contact vertical motion type high voltage isolating switch capable of detecting position of moving contact |
| 12/04/2013 | CN102254728B Dynamic contact horizontal movement type high-voltage isolation switch allowing for detection of position of dynamic contact |
| 11/27/2013 | CN203312136U Heavy-current three-position double-fracture disconnecting switch |
| 11/27/2013 | CN203312135U Maloperation-preventing boundary load switch with knife switch |
| 11/27/2013 | CN203312134U Gas taken device for circuit breaker |
| 11/27/2013 | CN203312133U Conducting structure suitable for large-current isolating switch |
| 11/27/2013 | CN203312132U Three-position solid insulation isolation switch |
| 11/27/2013 | CN203312131U High voltage isolation switch |
| 11/27/2013 | CN203312130U Three-station mechanism having brake-reclosing and ground connection on-off function |
| 11/27/2013 | CN203312129U Automatic protective device for preventing breakage of pillar porcelain insulator of high-voltage power-driven disconnecting switch |
| 11/27/2013 | CN203312128U AC high-voltage line high-voltage isolating switch insulating support body and high-voltage isolating switch |
| 11/27/2013 | CN203312127U Outdoor high-voltage direct operated isolation switch with circuit detection device |
| 11/27/2013 | CN203312126U Outdoor high-voltage direct operated isolation switch with overvoltage protection device |
| 11/27/2013 | CN203312125U Outdoor high-voltage direct operated isolation switch with detection control device |
| 11/27/2013 | CN203312059U Manual emergency tripping device |
| 11/27/2013 | CN103413718A High-reliability outdoor pile high-voltage alternating current single-phase disconnecting switch |
| 11/27/2013 | CN103413717A High-voltage alternating current single-phase disconnecting switch on outdoor column and with operation device |
| 11/27/2013 | CN102254730B Three-station isolation grounding switch |
| 11/20/2013 | EP2663990A1 High-voltage switchgear |
| 11/20/2013 | CN203300530U Three-location isolation ground switch and its conductive circuit |
| 11/20/2013 | CN203300529U Base transmission device of isolation switch |
| 11/20/2013 | CN203300528U Box-type transmission device of high-voltage alternating-current isolating switch |
| 11/20/2013 | CN203300527U Highly-efficient and energy-saving electronic switch |
| 11/20/2013 | CN203300526U An electric grounding switch |
| 11/20/2013 | CN103400719A Insulating protective cover for high voltage load switch connecting terminal |
| 11/20/2013 | CN103400718A Protection device for isolating switch secondary mechanism |
| 11/20/2013 | CN103400717A Multi-electrode field distortion gas switch and multi-switch synchronous triggering method |
| 11/14/2013 | WO2013167319A1 Switching arrangement |
| 11/13/2013 | CN203288486U Inner control mechanism for ring network cabinet |
| 11/13/2013 | CN203288485U Direct-acting isolating earthing switch |
| 11/13/2013 | CN203288435U Disconnecting switch and operating mechanism thereof |
| 11/13/2013 | CN102496516B Explosion-proof box body locking mechanism provided with isolating switch on door to be locked |
| 11/13/2013 | CN102089843B Disconnector for switchgear |
| 11/13/2013 | CN101996815B Switchgear and operation method of switchgear |
| 11/12/2013 | US8581447 Method and device for operating a circuit arrangement |
| 11/06/2013 | CN203277284U Double separation type high voltage automatic circuit breaker load melt body |
| 11/06/2013 | CN203277200U Multifunctional Bar-shaped fusing disconnecting switch |
| 11/06/2013 | CN203277199U An automatically-controlled breaker isolating switch |