| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 08/05/2009 | CN201285732Y Indoor A/C high voltage vacuum circuit breaker |
| 08/05/2009 | CN201285731Y Modular vacuum contactor |
| 08/05/2009 | CN201285730Y Apparatus for safely compensating gas to SF6 circuit breaker in operation |
| 08/05/2009 | CN101499384A Vacuum bulb for an electric cut-off device at least providing the function of a disconnecting switch |
| 08/05/2009 | CN100524991C Section of a high voltage installation provided with cooling means |
| 07/30/2009 | WO2009093919A2 Mean voltage disconnector to be applied especially in mining electrical equipment |
| 07/30/2009 | WO2009092621A1 Short-circuit device having pyrotechnic trigger |
| 07/30/2009 | WO2009049144A3 Compositions containing sulfer hexafluoride and uses thereof |
| 07/30/2009 | DE102008026798B3 Antriebssystem für elektrische Schaltgeräte A drive system for electric switchgear |
| 07/30/2009 | DE102008011043B3 Vakuumleistungsschalter Vacuum Circuit Breaker |
| 07/29/2009 | CN201282074Y Energy storage mechanism improvement of high-voltage vacuum circuit breaker |
| 07/29/2009 | CN201282073Y Outlet arm for high-voltage vacuum circuit breaker |
| 07/29/2009 | CN201282072Y Wall hanging type high-voltage vacuum switch |
| 07/29/2009 | CN201282071Y Wall hanging type high-voltage vacuum circuit breaker |
| 07/29/2009 | CN201282070Y Wall hanging type solid sealed pole |
| 07/29/2009 | CN201282069Y Light control modularization intelligent vacuum switch with phase-selecting function |
| 07/29/2009 | CN201282068Y Connecting mechanism for regulating opening distance and over travel of permanent magnet vacuum contactor |
| 07/29/2009 | CN201282067Y Vacuum circuit-breaker |
| 07/29/2009 | CN201282066Y Locking device for vacuum contactor |
| 07/29/2009 | CN201282065Y Permanent magnet AC vacuum contactor |
| 07/29/2009 | CN101496123A Insulating nozzle, comprising a first material and a second material |
| 07/29/2009 | CN101494133A Manual switching and lock catch protection device for high voltage vacuum permanent magnet circuit breaker |
| 07/29/2009 | CN100521418C Gas insulated switch gear |
| 07/28/2009 | US7566842 Switching chamber and heavy-duty circuit breaker |
| 07/28/2009 | US7566840 Contact arm mechanism for circuit breaker |
| 07/23/2009 | DE10006167B4 Leistungsschalter Circuit breaker |
| 07/22/2009 | EP2081207A1 High-power switching device installed on an electrically powered vehicle |
| 07/22/2009 | EP2081200A2 Electrical contact for vacuum valve |
| 07/22/2009 | CN201278330Y Structural improvement for high-voltage vacuum circuit breaker closing spring |
| 07/22/2009 | CN201278329Y Improvement for connection structure between elbow and main shaft for high-voltage vacuum circuit breaker |
| 07/22/2009 | CN201278328Y A vacuum contactor |
| 07/22/2009 | CN201278327Y 1100kV extra-high voltage porcelain knob type SF6 circuit breaker |
| 07/22/2009 | CN101490781A Drive arrangement having a common drive device for a plurality of switchgears of an electric switching device |
| 07/22/2009 | CN101488415A Plate type rack for outdoor high voltage vacuum circuit breaker |
| 07/22/2009 | CN100517540C A vacuum breaker contact |
| 07/22/2009 | CN100517539C Hydraulic pressure disc spring energy storing device for high-voltage breaker |
| 07/22/2009 | CN100517538C Current-limiting arc-control device of medium-voltage large current DC circuit breaker |
| 07/22/2009 | CN100517533C Method and device for interlocking |
| 07/21/2009 | US7563161 Control device for actuating at least two items of switchgear in co-ordinated manner, one of which items performs interruption in a vacuum |
| 07/16/2009 | WO2009086906A1 Hydraulic drive |
| 07/16/2009 | US20090179011 Ablative-based multiphase current interrupter |
| 07/16/2009 | US20090179010 Ablative-based current interrupter |
| 07/16/2009 | US20090178904 Switch having a complementary diode unit |
| 07/16/2009 | DE102008004063A1 Hydraulischer Antrieb Hydraulic drive |
| 07/15/2009 | EP2079089A2 Vacuum switchgear and a method of diagnosing vacuum pressure thereof |
| 07/15/2009 | CN201274256Y Permanent magnet driving mechanism |
| 07/15/2009 | CN201274255Y Simple and reliable switching on mechanical locking apparatus for vacuum circuit breaker |
| 07/15/2009 | CN201274254Y Bellow component for vacuum circuit breaker |
| 07/15/2009 | CN201274253Y Indoor combined electric appliance for 40.5 kV vacuum load switch fuse |
| 07/15/2009 | CN101483115A Contactor component of vacuum breaker |
| 07/15/2009 | CN101483114A Vacuum switchgear and a method of diagnosing vacuum pressure thereof |
| 07/15/2009 | CN101483113A Vacuum switchgear |
| 07/15/2009 | CA2650001A1 High-power switching device placed on an electric vehicle |
| 07/09/2009 | WO2009084503A1 Direct current switch |
| 07/09/2009 | US20090173719 Vacuum switchgear |
| 07/09/2009 | US20090173160 Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device |
| 07/09/2009 | DE19857170B4 Schaltgerät Switchgear |
| 07/09/2009 | DE10036370B4 Lichtbogenlöscheinrichtung mit einem Aufsatz für Niederspannungs-Schaltgeräte Arc quenching device with an attachment for low-voltage switchgear |
| 07/08/2009 | EP2077570A1 Trennschalter mit mehreren, parallel angeordneten Trennkammern mit gemeinsamer Übertragung und reduziertem Platzbedarf in der Länge |
| 07/08/2009 | EP2077569A1 Vacuum switchgear |
| 07/08/2009 | EP2076914A1 Interrupter tube with field distribution cylinder for high- or medium-voltage circuit breakers |
| 07/08/2009 | CN201270220Y Single pole vacuum integrated circuit breaker for electric railway traction power supply system |
| 07/08/2009 | CN101479825A Vacuum recloser |
| 07/08/2009 | CN101477916A Fixed arc extinguishing device for switch |
| 07/08/2009 | CN101477915A Light controlled vacuum switch module |
| 07/08/2009 | CN101477914A Single-pole double-throw vacuum additron with conical contact tip |
| 07/08/2009 | CN101477913A Circuit breaker having a plurality of breaker chambers arranged in parallel, with a common transmission and reduced length |
| 07/07/2009 | US7558052 Electrical cabinet assembly and seal assembly therefor |
| 07/07/2009 | CA2453805C Arc extinguishing device with a high speed whip |
| 07/02/2009 | WO2009081659A1 Electrode contact member of vacuum circuit breaker and process for production of the same |
| 07/02/2009 | WO2009080472A1 Three-positions disconnector for medium voltage panels |
| 07/02/2009 | WO2009080453A1 Vacuum switching tube |
| 07/02/2009 | WO2009080452A1 Vacuum switching tube |
| 07/02/2009 | WO2009080123A1 Weakly conducting nozzle for a gas circuit breaker and ptfe based material therefore |
| 07/02/2009 | WO2009079871A1 Circuit breaker with a heat dissipating means |
| 07/02/2009 | WO2008028676A8 Vacuum circuit breaker |
| 07/02/2009 | US20090166332 Gas-insulated switchgear apparatus and gas filter device |
| 07/02/2009 | US20090166161 Power circuit-switching device |
| 07/01/2009 | EP2075817A1 Actuation transmission system for electrical equipment |
| 07/01/2009 | EP2075813A1 Spring arrangement for spring drive unit and spring drive unit comprising spring arrangement |
| 07/01/2009 | EP2075807A1 Electrical equipment for distribution network with fault detection, disconnection and elimination system |
| 07/01/2009 | CN201266575Y Vacuum switch contact |
| 07/01/2009 | CN201266574Y High-voltage vacuum breaker for back-to-back double explosion chambers |
| 07/01/2009 | CN201266573Y High-voltage vacuum breaker |
| 07/01/2009 | CN201266572Y Interlocking device of cart type high-voltage vacuum breaker |
| 07/01/2009 | CN201266571Y Novel railway phase control permanent magnet mechanism vacuum circuit breaker |
| 07/01/2009 | CN201266570Y Controller for selecting phase of high voltage AC circuit breaker |
| 07/01/2009 | CN101471199A Single-pole double-throw vacuum switch tube |
| 06/25/2009 | WO2009077329A1 Interrupter arrangement having a movable switching tube |
| 06/25/2009 | WO2009077297A1 Contact disk for a vacuum switching tube |
| 06/25/2009 | WO2009076975A1 Medium-voltage switchgear assembly |
| 06/25/2009 | US20090160266 Semiconductor integrated circuit |
| 06/25/2009 | US20090159569 Switchgear |
| 06/25/2009 | US20090159568 Vacuum insulated switchgear |
| 06/25/2009 | US20090159413 Switchgear system |
| 06/25/2009 | DE102007063424A1 Unterbrecheranordnung mit einem bewegbaren Schaltrohr Switching device having a movable switch tube |
| 06/24/2009 | EP2073234A1 Vacuuminterrupter |
| 06/24/2009 | CN201262918Y Integrated installation module of spring operating mechanism |
| 06/24/2009 | CN201262917Y Spring operating mechanism |
| 06/24/2009 | CN201262916Y Vacuum switch contact |