| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 10/21/2009 | CN201332030Y Mechanical split-combined indication device of circuit breaker |
| 10/21/2009 | CN101563744A Apparatus and method for compressing exciting inrush current of transformer |
| 10/21/2009 | CN101563743A Power open/close device |
| 10/21/2009 | CN101562088A Pulse power type permanent magnet linear motor (PMLM) operating mechanism of high-voltage circuit-breaker |
| 10/21/2009 | CN101562084A Double contact switch |
| 10/21/2009 | CN100552852C Servo control device and method for position of moving contact in high voltage breaker |
| 10/20/2009 | CA2381237C Switch actuator |
| 10/15/2009 | WO2009125467A1 Vacuum breaker and gas insulated switchgear using the same |
| 10/15/2009 | WO2009124837A1 Vacuum switching tube |
| 10/15/2009 | WO2009124582A1 Gas-insulated high voltage switch |
| 10/15/2009 | US20090256427 Module for controlling a switch in a high voltage electrical substation |
| 10/15/2009 | US20090255905 Main circuit terminal assembly for vacuum circuit breaker |
| 10/15/2009 | US20090255792 Contact assembly of circuit breaker |
| 10/15/2009 | DE102008018174A1 Elektrisches Schaltgerät Electrical switching apparatus |
| 10/14/2009 | EP2108184A1 Switchgear for high pressure environments |
| 10/14/2009 | CN201328017Y Power supply device for permanent-magnetic mechanism circuit breaker |
| 10/14/2009 | CN201328010Y Mineral flame-proof type vacuum feed switch and reactive power compensation composite set |
| 10/14/2009 | CN201327799Y Breaker operation mechanism tripping apparatus |
| 10/14/2009 | CN201327792Y Low temperature and low gas pressure circuit breaker |
| 10/14/2009 | CN201327791Y Fixed side-mounted type vacuum circuit breaker |
| 10/14/2009 | CN201327790Y Mid removable vacuum circuit breaker |
| 10/14/2009 | CN201327789Y Sealing main circuit for circuit breaker |
| 10/14/2009 | CN201327781Y 断路器 Breaker |
| 10/14/2009 | CN101557093A Small voltaic arc large current DC switch |
| 10/14/2009 | CN101556878A Operation mechanism of high-voltage vacuum load switch-fuse combined electric apparatus |
| 10/14/2009 | CN101556877A Main circuit terminal assembly for vacuum circuit breaker |
| 10/14/2009 | CN101556876A Electronic electromagnetic intelligent switch |
| 10/14/2009 | CN100550245C Control device for vacuum circuit breaker |
| 10/09/2009 | CA2661978A1 Arc splitter arrangement for an electrical switch |
| 10/08/2009 | US20090250436 Large-capacity vacuum circuit breaker |
| 10/08/2009 | DE19715780B4 Vorrichtung zur optischen Erfassung von Störlichtbogen in Schaltgeräten und -anlagen Device for optical detection of arcing in switching devices and systems |
| 10/07/2009 | EP2107584A1 Large-capacity vacuum circuit breaker |
| 10/07/2009 | EP2107583A1 Medium voltage circuit breaker with capacitor bank supervisor. |
| 10/07/2009 | CN201323161Y Protective device for breaker closing electromagnet |
| 10/07/2009 | CN201323160Y Circuit breaker with closed isolating switch at both sides |
| 10/07/2009 | CN201323159Y Fixed metal-enclosed high-pressure switch apparatus |
| 10/07/2009 | CN201323158Y Improved control circuit of LW8-35A circuit breaker |
| 10/07/2009 | CN101553894A Circuit breaker |
| 10/07/2009 | CN101552153A A vacuum arc-extinguishing chamber contact |
| 10/07/2009 | CN101552152A Large-capacity vacuum circuit breaker |
| 10/07/2009 | CN101552146A Current breaking device for low voltage and high voltage |
| 10/07/2009 | CN101552145A Closing keeping device for spring operation mechanism |
| 10/07/2009 | CN101549655A Outdoor 2 multiply 27.5 kV solid-sealing vacuum modular device of electrified railway |
| 10/06/2009 | US7598628 Automated bypass method and apparatus |
| 10/01/2009 | WO2009119080A1 Switch device and operating mechanism for switch device |
| 10/01/2009 | WO2009118358A1 Electric cut-off device with augmented visibility |
| 09/30/2009 | CN201319349Y Separating part structure improvement of high pressure vacuum circuit breaker |
| 09/30/2009 | CN201319348Y Closing part structure improvement of high pressure vacuum circuit breaker |
| 09/30/2009 | CN201319347Y Touching arm for indoor vacuum circuit breaker |
| 09/30/2009 | CN201319346Y SF* composite type high-voltage combined electric appliance |
| 09/30/2009 | CN101548351A Gear for electrical circuit breakers |
| 09/30/2009 | CN101546672A Manipulating mechanism of indoor HVAC vacuum circuit breaker |
| 09/30/2009 | CN101546671A Vacuum arc extinguish chamber structure of indoor HVAC vacuum circuit breaker |
| 09/30/2009 | CN101546670A Zero current disjunction AC vacuum contactor |
| 09/30/2009 | CN101546658A Electric cut-off device with augmented visibility |
| 09/29/2009 | US7595461 Heavy-duty circuit breaker with erosion-resistant short-circuit current routing |
| 09/29/2009 | CA2426702C Isolating nozzle for arc blow circuit breaker |
| 09/24/2009 | WO2009115439A1 Permanent magnet quenching device for load interrupters |
| 09/24/2009 | US20090235721 Reduced graphene oxide film |
| 09/23/2009 | EP2104127A1 Switchgear |
| 09/23/2009 | CN201315287Y Arc extinguish chamber of double-chamber thermal expanding self-extinguishing type SF6 circuit breaker and an air cylinder thereof |
| 09/23/2009 | CN201315286Y Tank-type circuit breaker |
| 09/23/2009 | CN201315285Y Fixed end outgoing-line device for arc extinguish chamber of high-voltage circuit-breaker |
| 09/23/2009 | CN201315284Y Directly-operated type sealing device for vacuum circuit breaker |
| 09/23/2009 | CN201315283Y Crank of circuit breaker |
| 09/23/2009 | CN201315282Y Opening transmission device of vacuum circuit breaker |
| 09/23/2009 | CN201315281Y Main conducting loop of vacuum circuit-breaker |
| 09/23/2009 | CN201315280Y Sealed pole of vacuum circuit breaker |
| 09/23/2009 | CN201315279Y Wire connection board of circuit breaker |
| 09/23/2009 | CN201315278Y Vacuum auxiliary switch |
| 09/23/2009 | CN201315277Y Improved structure of medium-pressure mid-set movable solid-sealed type vacuum circuit breaker |
| 09/23/2009 | CN201315276Y Cross beam for high-voltage circuit-breaker |
| 09/23/2009 | CN201315275Y Gaspath device for high-voltage circuit-breaker and high-voltage circuit-breaker with same |
| 09/23/2009 | CN201315274Y Special bracket of mechanical latch microcomputer padlock |
| 09/23/2009 | CN201315273Y Transmission sealing device for high-voltage circuit-breaker |
| 09/23/2009 | CN201315272Y Magnetic force operating mechanism |
| 09/23/2009 | CN201315271Y Bistable permanent magnetic operation mechanism |
| 09/23/2009 | CN201315270Y Oil buffer for circuit breaker |
| 09/23/2009 | CN201315269Y High-voltage circuit-breaker and grounding structure of shielding barrel for internal current mutual inductor thereof |
| 09/23/2009 | CN101540480A Vacuum-load isolating switch-fuse combined electrical apparatus |
| 09/23/2009 | CN100543900C Production technology for solid sealing electrode pole of high voltage vacuum breaker |
| 09/23/2009 | CN100543899C Electro-magnetic actuator and circuit breaker using the same |
| 09/17/2009 | WO2009093919A3 Mean voltage disconnector to be applied especially in mining electrical equipment |
| 09/17/2009 | US20090230090 Vacuum switch |
| 09/17/2009 | DE19959794B4 Kontaktantrieb für Vakuumschalter Contact drive for vacuum switch |
| 09/17/2009 | DE102008018531B3 Vakuumschaltröhre Vacuum interrupter |
| 09/17/2009 | DE102008015463B3 Permanentmagnet-Löscheinrichtung für Lasttrennschalter Permanent magnet quenching device for switch disconnectors |
| 09/16/2009 | CN201311875Y Insulated pull rod for middle-high voltage vacuum circuit breaker |
| 09/16/2009 | CN201311874Y Outdoor AD vacuum circuit breaker and insulated supporting seat thereof |
| 09/16/2009 | CN201311873Y Outdoor vacuum breaker casing |
| 09/16/2009 | CN201311872Y Vacuum circuit breaker |
| 09/16/2009 | CN201311871Y Tripping electromagnet installment frame of vacuum circuit breaker |
| 09/16/2009 | CN201311870Y Vacuum breaker |
| 09/16/2009 | CN201311869Y ZN63A-12 indoor vacuum circuit breaker |
| 09/16/2009 | CN101536129A Wo2008055899 |
| 09/16/2009 | CN101533736A Small spring operating mechanism for vacuum load switch or vacuum breaker |
| 09/16/2009 | CN101533735A High pressure vacuum circuit breaker |
| 09/16/2009 | CN101533725A Electrohydraulic servo operating mechanism of high-voltage circuit breaker |
| 09/16/2009 | CN100541679C Solenoid control device |
| 09/15/2009 | US7589295 Electrical switchgear |