| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 10/22/2008 | CN101292317A Electric switching device arrangement |
| 10/22/2008 | CN101290847A Circuit breaker with rupture chamber having double movement and inverted structure |
| 10/22/2008 | CN101290846A Vacuum interrupter |
| 10/22/2008 | CN101290070A Electromagnetic hydraulic valve possessing self-defence capability |
| 10/22/2008 | CN100428386C Arc-resistance piece structure and vacuum switch contact |
| 10/22/2008 | CN100428385C Circuit breaker and contact arc-extinguishing system |
| 10/22/2008 | CN100427961C Virtual instrument technique based gas insulation combined electric appliances online detecting method |
| 10/21/2008 | US7439469 Electric switching device comprising an arc-quenching unit |
| 10/17/2008 | CA2629154A1 Double movement circuit breaker with quenching chamber and inverted structure |
| 10/16/2008 | DE19963024B4 Optischer Störlichtbogensensor An optical accidental arc sensor |
| 10/16/2008 | DE102007014940B3 Vorrichtung zur Überwachung des Vakuums Device for monitoring the vacuum |
| 10/15/2008 | CN201134390Y Locking unit mechanism of vacuum circuit-breaker |
| 10/15/2008 | CN201134389Y Intelligent control mechanism of monostabillized permanent magnetic mechanism |
| 10/15/2008 | CN201134388Y Solid sealed pole of 72.5KV vacuum circuit breaker |
| 10/15/2008 | CN201134387Y Trip mechanism for vacuum switch |
| 10/15/2008 | CN201134386Y Output angle positioning apparatus for operating mechanism |
| 10/15/2008 | CN201134366Y Low-voltage vacuum circuit breaker of permanent magnetism type |
| 10/15/2008 | CN101288141A Heavy-duty circuit breaker featuring arc-resistant fault current conduction |
| 10/15/2008 | CN101288140A Switch pole of supporting frame with lock device |
| 10/15/2008 | CN101286636A Switching overvoltage absorption apparatus |
| 10/14/2008 | CA2304184C Electromagnetic actuator |
| 10/09/2008 | WO2008119786A1 A bistable magnetic actuator for circuit breakers with electronic drive circuit and method for operating said actuator |
| 10/09/2008 | WO2008119785A1 A bistable magnetic actuator for circuit breakers with electronic drive circuit and method for operating said actuator |
| 10/09/2008 | WO2008119655A1 Gas-insulated switchgear device |
| 10/09/2008 | US20080245772 Vacuum Interrupter |
| 10/08/2008 | EP1977435A1 Electrical switching device with potential control |
| 10/08/2008 | CN201130825Y Electrically-operated interlocking device for drawer unit |
| 10/08/2008 | CN201130630Y Pole unit for vacuum protection switch |
| 10/08/2008 | CN201130629Y Major loop structure of high voltage vacuum breaker |
| 10/08/2008 | CN201130628Y Insulation barrel for 10kV high-voltage vacuum breaker |
| 10/08/2008 | CN201130627Y Outdoors vacuum breaker pull rod |
| 10/08/2008 | CN201130626Y Silica gel solid sealed pole for high voltage switch |
| 10/08/2008 | CN201130625Y Air insulation vacuum circuit breaker |
| 10/08/2008 | CN201130624Y Circuit breaker of connect-disconnect senistor |
| 10/08/2008 | CN101282026A Apparatus for fast switching contacts of duplicate supply control cabinet |
| 10/08/2008 | CN101281831A High-voltage single-fracture vacuum arc chute based on two-part turn longitudinal field contact |
| 10/08/2008 | CN101281830A Radiator for high pressure vacuum circuit breaker |
| 10/07/2008 | US7432465 Switching device with a disconnection and/or grounding function |
| 10/07/2008 | CA2470544C Arc extinguishing device with a high speed whip |
| 10/02/2008 | WO2008117438A1 Energy accumulator for switchgear |
| 10/02/2008 | WO2008117437A1 Energy accumulator for switchgear |
| 10/02/2008 | US20080237194 Metal-hydrate containing arc-extinguishing compositions and methods |
| 10/02/2008 | US20080237193 Electrical switching apparatus, and accessory module and electrical conductor mount therefor |
| 10/02/2008 | US20080237192 Electrical switching apparatus and accessory tray therefor |
| 10/02/2008 | US20080237191 Electrical switching apparatus, and accessory module and strain relief mechanism therefor |
| 10/02/2008 | DE19636296B4 Flachlöschkammer Shallow quench chamber |
| 10/01/2008 | EP1975960A1 A bistable magnetic actuator for circuit breakers with electronic drive circuit and method for operating said actuator |
| 10/01/2008 | EP1974363A1 Alternator circuit-breaker disconnecting switch of compact structure |
| 10/01/2008 | EP1974362A1 Generator isolator with inserted resistor |
| 10/01/2008 | CN201126792Y Brake-dividing system for high voltage vacuum breaker |
| 10/01/2008 | CN201126767Y Misoperation-prevention interlocking device for low pressure drawer type switch cabinet |
| 10/01/2008 | CN101278201A Voltage sensors and voltage sensing methods for gas insulated switchgear |
| 10/01/2008 | CN101276702A Hexafluoride sulphur circuit breaker with heating protecting equipment |
| 10/01/2008 | CN101276701A Locking and operating system for generator circuit breakers |
| 09/30/2008 | US7429710 Three-position ground switch |
| 09/25/2008 | WO2008087060A8 Pole for a gas-insulated high-voltage switch and method for producing a switch pole of this type |
| 09/25/2008 | DE10204217B4 Anordnung mit einer Vakuumschaltröhre Arrangement with a vacuum interrupter |
| 09/25/2008 | DE102006042101B4 Vakuumschalter für Mittel- und Hochspannungen Vacuum switch for medium and high voltages |
| 09/25/2008 | DE10149894B4 Vakuum-Schaltröhre für einen Vakuum-Leistungsschalter Vacuum interrupter for a vacuum circuit breaker |
| 09/24/2008 | EP1973133A2 Circuit breaker using arc contact |
| 09/24/2008 | EP1971993A1 Circuit breaker for a gas-insulated high-voltage switchgear assembly |
| 09/24/2008 | CN201122522Y Electric operation mechanism for switching equipment |
| 09/24/2008 | CN101271797A Spring overtravel device |
| 09/23/2008 | CA2351111C Procedure for synchronizing circuit-breaker switching with voltage wave |
| 09/18/2008 | WO2008110467A1 High-voltage power switch |
| 09/18/2008 | DE10048838B4 Kapazitive Steuerung mindestens einer Vakuum-Schaltkammer Capacitive controlling at least one vacuum interrupter |
| 09/17/2008 | EP1971007A1 System and method for fault protection in compact secondary substations |
| 09/17/2008 | EP1970931A1 High voltage power switch |
| 09/17/2008 | EP1969611A2 Motorized loadbreak switch control system and method |
| 09/17/2008 | EP1825488B1 Polyphase switching device comprising at least three similar interrupter units |
| 09/17/2008 | CN201117549Y Trolley type vacuum circuit-breaker interlocking operating mechanism transmission mechanism |
| 09/17/2008 | CN201117548Y Large-capacity vacuum arc extinguishing chamber |
| 09/17/2008 | CN201117547Y Generator operating switch |
| 09/17/2008 | CN201117546Y Vacuum circuit-breaker pole column |
| 09/17/2008 | CN201117545Y Electric power locomotive engine vacuum circuit-breaker |
| 09/17/2008 | CN201117544Y Intelligent control device adopting IGBT device |
| 09/17/2008 | CN201117543Y Hydraulic operation device for high-voltage circuit-breaker |
| 09/17/2008 | CN201117542Y Isolation switch movable side air cylinder device for GIS |
| 09/17/2008 | CN201117541Y Large-capacity electromagnetic type relay |
| 09/17/2008 | CN201117540Y Sulfur hexafluoride switch dynamic seal device |
| 09/17/2008 | CN201117539Y Rotarily vacuumed circuit breaker possessing isolated fracture |
| 09/17/2008 | CN201117538Y Mechanical latch device between manual and electric mode of load switch cabinet |
| 09/17/2008 | CN201117473Y Computer monitoring mis-operation preventing device |
| 09/17/2008 | CN201117460Y Antimagnetic hydraulic-formed bellows expansion tank |
| 09/17/2008 | CN101268536A Method for producing circuit-breaker parts for low, medium and high-voltage switching stations and corresponding circuit-breaker part |
| 09/17/2008 | CN101266900A Powerful permanent mechanism driving mechanism for breaker |
| 09/17/2008 | CN101266897A Insulation pull pole for vacuum breaker |
| 09/17/2008 | CN101266896A 6-10kV breaker vacuum bulb insulation supporter |
| 09/17/2008 | CN101266895A High-current filling encapsulation pole for breaker |
| 09/17/2008 | CN101266894A An intelligent high-voltage dual power conversion switch |
| 09/17/2008 | CN101266893A Operation mechanism with motive contactor of line inductance electromotor driving high-voltage breaker |
| 09/17/2008 | CN101266886A Spring operation mechanism for breaker |
| 09/16/2008 | US7425687 Vacuum insulated switchgear |
| 09/16/2008 | CA2448487C Electrical circuit interrupting device |
| 09/11/2008 | US20080217298 Wear Indicator for a Circuit Interrupter Exhaust Control Device |
| 09/11/2008 | US20080217297 Gas insulated switchgear and method for detecting arc damage in a gas insulated switchgear part |
| 09/10/2008 | EP1968091A2 Automatic discharging apparatus for closing spring in air circuit breaker and air circuit breaker having the same |
| 09/10/2008 | EP1968088A2 Multipolar electrical switch equipped with an operating mechanism and switching modules |
| 09/10/2008 | CN201113399Y High-voltage circuit-breaker spring-operated device energy storage electric motor over-voltage protection device |
| 09/10/2008 | CN201113248Y Ring net cabinet control device |