| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 12/10/2008 | CN101320653A Handcart type vacuum circuit breaker |
| 12/10/2008 | CN101320652A Suspending type vacuum arc-extinguishing chamber |
| 12/10/2008 | CN101320651A Heat pipe type vacuum switch |
| 12/10/2008 | CN101320650A Vacuum bubble system integral cell structure of vacuum on-load tapping switch |
| 12/10/2008 | CN101320637A Multi-force output air gap monostable permanent magnet control mechanism with manual emergency switching mechanism |
| 12/10/2008 | CN101320634A Monostable permanent magnet control mechanism with multiple force output air gaps |
| 12/10/2008 | CN100442414C Electromagnetic actuator and switch |
| 12/10/2008 | CN100442413C Contact for vacuum circuit breaker and vacuum circuit breaker using said contact |
| 12/10/2008 | CN100442412C 3-position on-off operating machine |
| 12/10/2008 | CN100442411C Multi-stage arc suppressing breaking device for extra-high voltage circuit breaker |
| 12/05/2008 | CA2633874A1 Fault interrupter and operating method |
| 12/04/2008 | WO2008080979A3 High-voltage disconnecting circuit breaker and method of operating the same |
| 12/04/2008 | DE102007028203B3 Magnetisches Antriebssystem für eine Schalteinrichtung A magnetic drive system for a switching device |
| 12/03/2008 | EP1998351A1 State grasping device and open/closure controller having this state grasping device |
| 12/03/2008 | EP1454332B1 Method for predicting a future voltage and/or current curve |
| 12/03/2008 | CN201160199Y Manual switch off device for emergency |
| 12/03/2008 | CN201160053Y Solid sealed pole |
| 12/03/2008 | CN201160052Y Novel circuit breaker for inflating cabinet of 10kV |
| 12/03/2008 | CN101315852A Contact system of plastic case breaker |
| 12/03/2008 | CN101315849A Spring operating mechanism cooperated with 126kV vacuum circuit breaker separation-integration characteristic |
| 12/03/2008 | CN101315836A Electromagnetic repulsion force system and permanent magnetic system coupled self-adapting control mechanism |
| 12/03/2008 | CN100440412C Low-voltage vacuum switch |
| 12/03/2008 | CN100440411C Solder ring for production of vacuum tube and method for the production of such a solder ring and of a vacuum tube |
| 12/02/2008 | US7459652 Switchgear device comprising an arc chute of reduced size |
| 12/02/2008 | CA2461646C Terminal pad for an insulator assembly |
| 11/30/2008 | CA2632501A1 Electrical service switching device with an arc blowout device |
| 11/27/2008 | WO2008113742A3 Compact secondary substation comprising an arcing fault protection system, a method for arcing fault protection in a compact secondary substation, and a control unit for performing the method |
| 11/27/2008 | US20080290069 Interrupting Chamber Having Two Compression Chambers |
| 11/27/2008 | US20080289938 Reduced material plug-on jaw with symmetrical spring for a circuit breaker |
| 11/27/2008 | DE102007023326A1 Electrical switchgear particularly power protection switch or protective motor switch comprises housing with connection units for electrical connection with bus bars or power lines, where arc discharge unit is provided to discharge arc |
| 11/27/2008 | DE102007022875A1 Housing for vacuum switching tube, has control electrode influencing electrical field outside housing that is coated with non-gaseous insulating substance such that control electrode is arranged within substance |
| 11/27/2008 | DE10032656B4 Freiluft-Hochspannungs-Durchführung und Hochspannungs-Schaltgerät mit einer solchen Durchführung Outdoor high-voltage bushing and high voltage switching device with such implementation |
| 11/26/2008 | CN201156498Y Universal vacuum circuit breaker |
| 11/26/2008 | CN201156497Y Switching-on buffering mechanism in breaker |
| 11/26/2008 | CN201156496Y Outdoor high-voltage AC porcelain knob breaker |
| 11/26/2008 | CN201156495Y Operation mechanism in circuit cutter |
| 11/26/2008 | CN100437869C Spring hydraulic operating mechanism for high voltage circuit breaker |
| 11/25/2008 | US7457105 Vacuum switchgear system and kit for system |
| 11/25/2008 | CA2502809C Efficient venting means for a circuit breaker |
| 11/20/2008 | WO2007128819A3 Method for the production of copper-chromium contacts for vacuum switches, and associated switching contacts |
| 11/20/2008 | DE102007047475B3 Hollow cylindrical component e.g. vapor shield, manufacturing method for vacuum interrupter, involves locally and transiently heating border areas of section to temperature for liquefying metallic material in areas, in protective atmosphere |
| 11/20/2008 | DE102007047473B3 Procedure for the production of tube shaped component useful as shielding in a vacuum interrupter, comprises filling a section of a tubular cavity of molten form in axial direction with a low melting metal |
| 11/20/2008 | DE102007038898B3 Schalteranordnung für eine Schaltanlage Switch arrangement for a switchgear |
| 11/20/2008 | DE102007008599B3 Vacuum switchgear has housing and contact system with two electrical contact elements, which is connected together by mechanical controller of outside electrical |
| 11/19/2008 | EP1991999A1 Electrical switching device |
| 11/19/2008 | CN201153087Y Permanent magnet mechanism vacuum circuit-breaker combined equipment having series resistance |
| 11/19/2008 | CN201153086Y Control apparatus for load switch electrically-operated mechanism |
| 11/18/2008 | CA2415335C Electrical switchgear unit equipped with a motorized control and process for operating such a switchgear unit |
| 11/16/2008 | CA2589410A1 High voltage disconnecting switch control |
| 11/13/2008 | WO2008136071A1 Phase control switch and switching pole control method in phase control switch |
| 11/13/2008 | WO2008135670A1 Bistable electromagnetic actuator, control circuit for a dual coil electromagnetic actuator, and dual coil electromagnetic actuator including such control circuit |
| 11/13/2008 | WO2008135214A1 Switching device having a vacuum interrupter chamber |
| 11/12/2008 | CN201149835Y Novel load switch for 10 kV gas-filling cabinet |
| 11/12/2008 | CN101303944A Single tube hot pipe static conductive rod for high tension vacuum arc-extinguishing chamber |
| 11/12/2008 | CN101303943A 10KV high voltage isolation switch |
| 11/11/2008 | US7450362 Method and apparatus for disconnection of a fault current which has occurred in an AC power supply system |
| 11/06/2008 | WO2008132058A1 Power backup in a drive unit for a circuit breaker, and a circuit breaker |
| 11/06/2008 | WO2008132018A1 Transducer arrangement |
| 11/06/2008 | WO2007109203A3 Mems thermal device with slideably engaged tether and method of manufacture |
| 11/06/2008 | DE102007021091A1 Schaltgerät mit Vakuumschaltkammer Switching device with vacuum interrupter chamber |
| 11/05/2008 | CN201146151Y Combined body pulling-insertion type mining explosion-proof switch |
| 11/05/2008 | CN201146150Y Once conductance cycle structure of 10 kV high-voltage vacuum breaker |
| 11/05/2008 | CN201146149Y 800 kV can-type hexafluoride sulphur circuit breaker |
| 11/05/2008 | CN201146148Y 550 kV can-type hexafluoride sulphur circuit breaker |
| 11/05/2008 | CN201146147Y 252 kV can-type hexafluoride sulphur circuit breaker |
| 11/05/2008 | CN201146109Y Electrically-operated apparatus for 10 kV load switch |
| 11/05/2008 | CN101300654A Current interrupter device having a double compression chamber |
| 11/04/2008 | US7445850 Switch container for hermetically encapsulating switch members and method for producing the same |
| 10/30/2008 | WO2008128872A1 Method for securing a getter for a vacuum switching tube and vacuum switching tube |
| 10/30/2008 | WO2008078178A3 Compact isolator switch for medium and high voltage |
| 10/30/2008 | US20080264906 Electrical switching apparatus, and arc hood assembly and chimney therefor |
| 10/30/2008 | DE102004015386B4 Mechanische Steuerung für einen Dreistellungsschalter Mechanical control for a three-position switch |
| 10/29/2008 | EP1986302A1 Power backup in a drive unit for a circuit breaker, and a circuit breaker |
| 10/29/2008 | EP1984933A2 Vacuum-type electrical switching apparatus |
| 10/29/2008 | CN201142296Y Indoor amour fixing type metal closed switch apparatus |
| 10/29/2008 | CN101297387A Circuit interrupter assembly and method of making the same |
| 10/29/2008 | CN101297386A Vacuum insulation switch equipment |
| 10/29/2008 | CN101295604A Trip device |
| 10/29/2008 | CN101295603A High-capacity switching equipment with cabinet structure |
| 10/29/2008 | CN101295602A Method for eliminating switch-on trip of vacuum circuit breaker |
| 10/29/2008 | CN101295601A Stationary contact-movable vacuum arc-extinguishing chamber |
| 10/29/2008 | CN101295600A Combined medium voltage vacuum circuit breaker |
| 10/29/2008 | CN101295599A High-capacity vacuum switch of 6300A distribution cabinet |
| 10/29/2008 | CN101295592A Controlled switching device |
| 10/23/2008 | WO2008125494A1 Device for protecting converter modules |
| 10/23/2008 | US20080258799 High frequency switching circuit |
| 10/23/2008 | US20080257866 Circuit breaker with a double acting circuit-breaking chamber and an inverted structure |
| 10/23/2008 | US20080257865 Gas circuit breaker |
| 10/23/2008 | US20080257703 Diverter Switch, a Method for Operating Such a Switch and Use of Such a Switch |
| 10/23/2008 | DE19936147B4 Vakuumleistungsschalter oder -lastschalter Vacuum breaker or -lastschalter |
| 10/23/2008 | DE19830231B4 Nennstromkontaktanordnung eines Leistungsschalters Rated current contact arrangement of a circuit breaker |
| 10/22/2008 | EP1983538A1 Circuit breaker with rupture chamber having double movement and inverted structure |
| 10/22/2008 | EP1983537A2 Vacuum interrupter |
| 10/22/2008 | CN201138638Y Breaking mechanism of vacuum circuit-breaker in side-installed type |
| 10/22/2008 | CN201138637Y Driving rod for vacuum circuit-breaker of electricity powered locomotive |
| 10/22/2008 | CN201138636Y Integrated machine box for vacuum circuit-breaker in side-installed type |
| 10/22/2008 | CN201138635Y Gaseous direct-action sealing structure of vacuum circuit-breaker in inflating cabinet |
| 10/22/2008 | CN201138634Y Sleeve contacting arm for indoor high voltage vacuum switch |
| 10/22/2008 | CN201138618Y Monostable permanent magnetism mechanism |
| 10/22/2008 | CN101292318A Dielectric insulation seal for a vacuum tube |