| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 12/09/2009 | CN101599388A Insulating pull rod for breaker |
| 12/09/2009 | CN101599387A Electric railway 2*55kV solid sealing type vacuum circuit breaker |
| 12/09/2009 | CN101599386A Load switch used in visual fracture state of 24kV power distribution system |
| 12/09/2009 | CN100568434C Multi circuit selecting switchgear |
| 12/09/2009 | CN100568431C Arcing chamber of breaker |
| 12/09/2009 | CN100568428C A large power spring operation mechanism |
| 12/03/2009 | WO2009144907A1 Gas insulation switch |
| 12/03/2009 | US20090294406 Medium-voltage or high voltage electrical switchgear |
| 12/02/2009 | EP2128882A1 High voltage circuit breaker |
| 12/02/2009 | EP2126947A2 Compressed-gas cutout having a radial flow opening |
| 12/02/2009 | EP1961029B1 Vacuum interrupter |
| 12/02/2009 | CN201355594Y Electric locking device |
| 12/02/2009 | CN101595545A Interrupter tube with field distribution cylinder for high- or medium-voltage circuit breakers |
| 12/02/2009 | CN100565746C Gas path breaker |
| 12/02/2009 | CN100565745C Gas exhaust for circuit breaker |
| 12/02/2009 | CN100564897C Hydraulic automatic control valve |
| 12/01/2009 | US7626286 Method for mains-synchronous switching of circuit breakers, and an apparatus for carrying out this method |
| 11/26/2009 | WO2009141056A1 Circuit breaker drive |
| 11/26/2009 | WO2009140999A1 Circuit breaker |
| 11/26/2009 | US20090289038 subsea arrangement |
| 11/26/2009 | US20090289037 High current switch and method of operation |
| 11/26/2009 | DE102008023502A1 Vakuumschaltröhre Vacuum interrupter |
| 11/25/2009 | EP2122647A1 Electric direct current network for water vessels and for offshore units having increased shut-off security |
| 11/25/2009 | CN201352530Y Vacuum circuit breaker |
| 11/25/2009 | CN201352529Y Vacuum breaker and electrode unit structure thereof |
| 11/25/2009 | CN101589446A High-voltage disconnecting circuit breaker and method of operating the same |
| 11/25/2009 | CN101587796A Breaker adjustable tripping spring structure |
| 11/25/2009 | CN101587795A Circuit breaker and a system having the circuit breaker |
| 11/25/2009 | CN101587787A Isolating switch |
| 11/25/2009 | CN101587783A Double-action type linkage mechanism for extra-high voltage circuit breaker |
| 11/25/2009 | CN100562961C A medium voltage vacuum contactor |
| 11/24/2009 | US7622829 Rotating electric motor for operating an electric component |
| 11/19/2009 | WO2009138397A1 Switching chamber |
| 11/19/2009 | WO2009138394A1 Vacuum circuit interrupter |
| 11/19/2009 | US20090283500 Arc extinguishing resin processed article and circuit breaker using the same |
| 11/19/2009 | DE102008024097A1 Leistungsschalterantrieb Circuit breaker operating mechanism |
| 11/18/2009 | EP2120244A1 High voltage output switch |
| 11/18/2009 | EP1733409B1 Electric device with compressed insulating gas comprising a composite insulator provided with a window for observation of the contacts |
| 11/18/2009 | CN201348972Y Mounting structure for main circuit of vacuum breaker |
| 11/18/2009 | CN201348971Y Open-close busbar current conversion device for improved isolating switch |
| 11/18/2009 | CN101584013A Pole for a gas-insulated high-voltage switch and method for producing a switch pole of this type |
| 11/18/2009 | CN101582578A On-load ice-thawing electric transmission line |
| 11/18/2009 | CN101582348A Low-voltage large-current vacuum arc extinguishing chamber |
| 11/18/2009 | CN101582347A Permanent magnet type 35KV vacuum circuit breaker |
| 11/18/2009 | CN101582346A Insulator type gas circuit-breaker |
| 11/18/2009 | CN101582345A Middle- and high-voltage electrical switch disconnector |
| 11/18/2009 | CN101582339A Manual operation switch |
| 11/18/2009 | CN101582338A Bistable permanent magnetism operating mechanism control circuit |
| 11/17/2009 | US7619177 Nozzle fastening for electrical switching apparatus |
| 11/12/2009 | WO2009137550A1 Low oil trip assembly for a fault interrupter and load break switch |
| 11/12/2009 | WO2009135817A1 Medium voltage switch unit. |
| 11/12/2009 | WO2009135501A1 Switching device comprising a gas-tight switching chamber |
| 11/12/2009 | WO2009094048A3 Circuit breaker with high speed mechanically-interlocked grounding switch |
| 11/12/2009 | DE102008049995B3 Vakuumschaltröhre Vacuum interrupter |
| 11/12/2009 | DE102008028980A1 System sowie Verfahren zur Diagnose des technischen Betriebszustandes eines Leistungsschalters System and method for diagnosing the technical operating state of a circuit breaker |
| 11/12/2009 | CA2723376A1 Low oil trip assembly for a fault interrupter and load break switch |
| 11/11/2009 | EP2117025A1 Medium voltage switch unit |
| 11/11/2009 | EP1444713B2 Power switch |
| 11/11/2009 | CN201345320Y Ceramic metallization pipe shell for vacuum interrupter |
| 11/11/2009 | CN201345319Y Annular rotating-terminal vacuum switch |
| 11/11/2009 | CN201345318Y 12kv vacuum switch pipe with end caps adopting curved surface structure |
| 11/11/2009 | CN201345317Y High-coaxiality vacuum switch pipe |
| 11/11/2009 | CN201345316Y 12kv vacuum switch pipe |
| 11/11/2009 | CN201345315Y 12kv vacuum switch pipe for vacuum breaker |
| 11/11/2009 | CN201345314Y Wireless remote controller of 24kV high-voltage vacuum circuit breaker |
| 11/11/2009 | CN201345313Y Special vacuum switch for switching combined capacitor bank |
| 11/11/2009 | CN201345312Y Material-saving vacuum contactor with high breaking capacity |
| 11/11/2009 | CN201345311Y Unicoil monostabillity permanent magnetism operating mechanism |
| 11/11/2009 | CN201345310Y Air chamber transmission sealing device of high-voltage circuit breaker and high-voltage circuit breaker with same |
| 11/11/2009 | CN201345304Y Rapid operation spring mechanism |
| 11/11/2009 | CN100559534C High-voltage circuit-breaker time-delay pilot switch adopting compressed spring over-center mechanism |
| 11/11/2009 | CN100559533C Torsional spring time-delay pilot switch used for short-time control of high-voltage circuit-breaker |
| 11/04/2009 | CN201340966Y Sealed terminal post applicable to 24KV high voltage switch cabinet |
| 11/04/2009 | CN201340823Y Three-phase sealed vacuum circuit breaker |
| 11/03/2009 | US7612471 Hybrid electrical switching device |
| 11/03/2009 | US7612309 Buffering mechanism for gas circuit breaker |
| 11/03/2009 | CA2498733C High-voltage loadbreak switch with enhanced arc suppression |
| 10/29/2009 | WO2009131238A1 Vacuum circuit breaker |
| 10/29/2009 | US20090266796 Gas-Insulated Power Apparatus |
| 10/28/2009 | EP2111628A1 Electric direct current network for water vessels and for offshore units |
| 10/28/2009 | CN101567280A Gas insulation arc-extinguishing chamber |
| 10/28/2009 | CN101567279A Magnetic force clutch |
| 10/28/2009 | CN101567275A Method and mould for producing first outer-packing vacuum arc extinguishing chamber of phase post of circuit breaker element |
| 10/28/2009 | CN100555496C High capacity vacuum load switch |
| 10/22/2009 | WO2009106731A3 Insulation of a current interrupter of the vacuum bulb type by overmoulding |
| 10/22/2009 | US20090261071 Gas-blast circuit breaker with a radial flow opening |
| 10/22/2009 | US20090261070 Insulating Nozzle, Comprising a First Material and a Second Material |
| 10/21/2009 | EP2109870A1 Pole for a gas-insulated high-voltage switch and method for producing a switch pole of this type |
| 10/21/2009 | CN201332228Y Special tool for disassembling crank arm copper sleeves arranged at the base of oil-minimum breaker |
| 10/21/2009 | CN201332056Y Permanent-magnet linear push operating mechanism for vacuum breaker |
| 10/21/2009 | CN201332055Y Device for preventing high pressure vacuum circuit breaker from mistakenly switching in |
| 10/21/2009 | CN201332054Y Overcurrent trip module of high-voltage vacuum circuit breaker |
| 10/21/2009 | CN201332053Y Vibration damping mounting structure of secondary control circuit board of high-voltage vacuum circuit breaker |
| 10/21/2009 | CN201332052Y Solid sealed pole of high-voltage vacuum circuit breaker |
| 10/21/2009 | CN201332051Y Operation mechanism interlocking apparatus of high-voltage vacuum circuit breaker |
| 10/21/2009 | CN201332050Y Locking electromagnet module of high-voltage vacuum circuit breaker |
| 10/21/2009 | CN201332049Y 接触器 Contactors |
| 10/21/2009 | CN201332048Y Air-insulated vacuum load switch |
| 10/21/2009 | CN201332047Y SF6 high-voltage breaker electromagnetic force drive mechanism |
| 10/21/2009 | CN201332046Y Electromagnetic hydraulic valve type spring hydraulic pressure operating mechanism with self-defense ability |