| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 07/20/2011 | CN102129931A Isolation vacuum circuit breaker |
| 07/20/2011 | CN101533736B Small spring operating mechanism for vacuum load switch or vacuum breaker |
| 07/20/2011 | CN101477914B Single-pole double-throw vacuum additron with conical contact tip |
| 07/20/2011 | CN101336463B Switch state monitoring apparatus |
| 07/20/2011 | CN101174516B State monitoring device for circuit breaker |
| 07/20/2011 | CN101150247B Vacuum insulated switchgear |
| 07/19/2011 | US7982341 Transformer operation control apparatus and method for suppressing magnetizing inrush current |
| 07/19/2011 | US7982143 Electric switch having an annular stationary contact |
| 07/19/2011 | CA2671402C Phase control switching device |
| 07/19/2011 | CA2590954C Connector system for an insulated switch with provision for grounding and visible break |
| 07/19/2011 | CA2590142C Visible open indicator |
| 07/13/2011 | EP2343721A1 Gas-isolated high voltage switch |
| 07/13/2011 | EP2343720A1 Gas-isolated high voltage switch |
| 07/13/2011 | EP2343719A1 Electrode material for vacuum circuit breaker and method for producing same |
| 07/13/2011 | CN201898082U Extra-high voltage alternating current circuit breaker |
| 07/13/2011 | CN201898081U Spring operating mechanism for vacuum switch |
| 07/13/2011 | CN201898080U Insulating pull rod for vacuum circuit breaker |
| 07/13/2011 | CN201898079U Handcart-type vacuum circuit breaker operating handle |
| 07/13/2011 | CN201898078U Lower cover of high-voltage load switch shell |
| 07/13/2011 | CN201898077U Lower cover of high-voltage load switch shell |
| 07/13/2011 | CN201898049U Novel permanent magnet control driver |
| 07/13/2011 | CN102124533A High-voltage isolator with field control element |
| 07/13/2011 | CN101221866B Switching-on buffering mechanism in breaker |
| 07/12/2011 | US7977822 Dynamically changing control of sequenced power gating |
| 07/07/2011 | WO2011080546A1 Electrical ring main unit |
| 07/07/2011 | US20110163783 No pop switch |
| 07/07/2011 | US20110163070 Low-voltage, medium-voltage or high-voltage assembly |
| 07/07/2011 | US20110163069 Gas-insulated high-voltage switch |
| 07/06/2011 | EP2341519A1 Vacuum circuit breaker |
| 07/06/2011 | EP2341518A1 Vacuum circuit breaker |
| 07/06/2011 | EP2341517A1 Medium voltage circuit breaker. |
| 07/06/2011 | EP2341516A1 Medium voltage circuit breaker. |
| 07/06/2011 | EP1629580B1 Switch assembly |
| 07/06/2011 | CN201893517U 24 kV small-sized vacuum load switch cabinet |
| 07/06/2011 | CN201893282U Installation rack formed by three groups of link mechanisms |
| 07/06/2011 | CN201893281U Cam for driving vacuum interrupter to be started and stopped |
| 07/06/2011 | CN201893280U On-off device for driving vacuum arc extinguish chamber by radial cam |
| 07/06/2011 | CN201893279U Circuit breaker pole and insulating cylinder thereof |
| 07/06/2011 | CN201893278U Circuit switch device in cable branch box and ring network cabinet |
| 07/06/2011 | CN201893277U Medium-voltage circuit breaker capable of measuring temperature |
| 07/06/2011 | CN201893276U Net cover board of vacuum breaker |
| 07/06/2011 | CN201893275U Solid-sealed polar pole for outdoor use |
| 07/06/2011 | CN201893274U Interlocking mechanism of permanent magnet vacuum circuit breaker |
| 07/06/2011 | CN102117713A Gas-isolated high voltage switch |
| 07/06/2011 | CN102117712A Vacuum circuit breaker |
| 07/06/2011 | CN102117711A Vacuum circuit breaker |
| 07/06/2011 | CN101877289B Seal vacuum circuit breaker of outdoor high-voltage permanent-magnetic mechanism |
| 07/06/2011 | CN101430986B Outdoor high-voltage permanent magnet type vacuum circuit breaker |
| 07/05/2011 | US7973433 Power electronics devices with integrated gate drive circuitry |
| 06/30/2011 | WO2011075931A1 Mechanical high voltage breaker with function of short circuit self-locking |
| 06/30/2011 | US20110156497 System and method for activating an isolated device |
| 06/30/2011 | US20110155697 Vacuum circuit breaker |
| 06/30/2011 | US20110155696 Vacuum circuit breaker |
| 06/30/2011 | US20110155695 High-voltage power switch with a switch gap |
| 06/30/2011 | DE112007000724B4 Schaltgerät und Verfahren zu dessen Herstellung Switching device and process for its preparation |
| 06/29/2011 | CN201886962U Novel cup-shaped longitudinal magnetic field contact |
| 06/29/2011 | CN201886961U Three-phase rotation double-break vacuum arc extinguishing chamber |
| 06/29/2011 | CN201886960U Disk-type rotary four-break vacuum arc extinguishing chamber |
| 06/29/2011 | CN201886959U Fan-shaped double-station vacuum arc extinguishing chamber |
| 06/29/2011 | CN201886958U Disk-type double-station vacuum arc extinguishing chamber |
| 06/29/2011 | CN201886957U Indoor high-voltage alternating current (AC) vacuum circuit breaker |
| 06/29/2011 | CN201886882U Outlet structure of SF6 insulation test transformer |
| 06/29/2011 | CN201885812U Fixed connection device of large-current miniature temperature detector for moving and fixed contacts |
| 06/29/2011 | CN102110956A Novel solid insulated switch |
| 06/29/2011 | CN102110954A High-capacity upper and lower isolated solid switch cabinet |
| 06/29/2011 | CN102110546A Anti-hopping vacuum contactor of high-speed frame-type repulsion mechanism |
| 06/29/2011 | CN102110545A Interlock apparatus of ground switch for vacuum circuit breaker |
| 06/29/2011 | CN102110544A Device for leading out vacuum signal of moving part position |
| 06/29/2011 | CN101226844B Three-pole apparatus for a medium or high voltage cubicle and associated cubicle comprising such a three-pole apparatus |
| 06/28/2011 | US7969046 Power supply control apparatus |
| 06/23/2011 | WO2011073539A1 Electromagnetic actuator having magnetic coupling, and cutoff device comprising such actuator |
| 06/23/2011 | WO2011073452A1 A switching device and a switchgear |
| 06/23/2011 | WO2011073163A1 Method for controlling an apparatus for switching current in a high-voltage power grid |
| 06/23/2011 | US20110147346 Gas-insulated switchgear device with optical current sensor |
| 06/23/2011 | US20110147175 Terminal Reversing Block |
| 06/22/2011 | EP2337052A1 A switching device and a switchgear |
| 06/22/2011 | EP2337047A1 Electric high voltage switch and switch position display for same |
| 06/22/2011 | EP2335059A1 Piezoelectric sensor for the measurement of gas density |
| 06/22/2011 | DE102010053229A1 Installation switching device e.g. non-selective line circuit breaker, has contact point arranged at interior of pressure-resistant chamber, so that extinguishing of electric arc is caused based on pressure increase at interior of chamber |
| 06/22/2011 | DE102007037637B4 Schaltanlage Switchgear |
| 06/22/2011 | CN201877716U Gaseous insulation vacuum switch equipment |
| 06/22/2011 | CN201877356U Arc extinguisher of sulfur hexafluoride breaker |
| 06/22/2011 | CN201877355U Secondary opening tripper of spring operation mechanism |
| 06/22/2011 | CN201877354U Spring energy-storage type control mechanism of solid-enveloped pole type vacuum circuit breaker |
| 06/22/2011 | CN201877353U High-insulation miniature vacuum arc extinguish chamber |
| 06/22/2011 | CN201877352U Vacuum arc-extinguishing device |
| 06/22/2011 | CN201877351U Vacuum switching tube |
| 06/22/2011 | CN201877350U Embedded pole for indoor vacuum breaker |
| 06/22/2011 | CN201877349U Self-cooled vacuum breaker |
| 06/22/2011 | CN201877348U Outdoor high-voltage alternating-current vacuum breaker |
| 06/22/2011 | CN201877347U Circuit for inhibiting closing/opening bounce of electromagnetic repulsion type fast vacuum breaker |
| 06/22/2011 | CN201877346U Pole-top vacuum load switch with grounding pole |
| 06/22/2011 | CN201877345U Arc extinguisher |
| 06/22/2011 | CN201877344U Pole post of vacuum circuit breaker |
| 06/22/2011 | CN201877343U Indoor medium-voltage solid-enveloped vacuum circuit breaker |
| 06/22/2011 | CN201877342U High voltage load switch |
| 06/22/2011 | CN1953117B Vacuum valve and vacuum valve production method |
| 06/22/2011 | CN102105959A Generator circuit breaker with fiber-optic current sensor |
| 06/22/2011 | CN102103941A Electrical circuit breaker and switch position indicator thereto |
| 06/22/2011 | CN102103940A Vacuum arc extinguish chamber capacitive treating method and device |