| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 09/10/2008 | CN201112265Y Cyclone type nozzle high voltage gas blowing breaker with groove |
| 09/10/2008 | CN201112264Y Cyclone type nozzle high voltage gas blowing breaker with blade |
| 09/10/2008 | CN201112263Y High voltage vacuum breaker |
| 09/10/2008 | CN201112262Y Vacuum switch tube contact head and vacuum switch tube |
| 09/10/2008 | CN201112261Y High-voltage vacuum load switch |
| 09/10/2008 | CN201112260Y Mechanical interlock device in high-voltage switch cabinet |
| 09/10/2008 | CN201112259Y Hydraulic integration operating mechanism for high-voltage circuit-breaker |
| 09/10/2008 | CN201112258Y Motive seal device for middle/high voltage power switchgear |
| 09/10/2008 | CN201112257Y SF6 load-break switch operating shaft motive seal component |
| 09/10/2008 | CN201112256Y 252KV porcelain column type hexafluoride sulphur circuit breaker |
| 09/10/2008 | CN201112255Y 550KV porcelain column type hexafluoride sulphur circuit breaker |
| 09/10/2008 | CN201112160Y Single spring electromagnetic operation mechanism |
| 09/10/2008 | CN201112159Y Automatic changeover using permanent magnetic operating mechanism |
| 09/10/2008 | CN201112158Y Permanent magnetism maintaining electromagnetic operating mechanism external manual transfer switch device |
| 09/10/2008 | CN201112157Y Switch electric appliance operating mechanism |
| 09/10/2008 | CN201112156Y Switch electric appliance operating mechanism |
| 09/10/2008 | CN101263571A Vacuum interrupter chamber |
| 09/10/2008 | CN101261903A A large power spring operation mechanism |
| 09/04/2008 | DE20321632U1 Getter für eine Vakuumschaltkammer Getter for a vacuum interrupter chamber |
| 09/04/2008 | DE102006041149B4 Vakuumschaltkammer für Mittelspannungsschaltanlagen Vacuum interrupter for medium voltage switchgear |
| 09/04/2008 | DE102005000727B4 Elektrisches Kontaktelement und Verfahren zu dessen Herstellung sowie Vakuum-Unterbrecher, Vakuum-Leistungsschutzschalter und Lastschalter unter Verwendung desselben The same electrical contact element and method for its preparation and vacuum interrupter, vacuum circuit breaker and circuit breaker using |
| 09/03/2008 | EP1964143A2 Fault interrupting and reclosing device |
| 09/03/2008 | CN101258574A Vacuum switch tube |
| 09/03/2008 | CN101256919A Asymmetry parallel excitation type bistable state permanent magnet control mechanism |
| 09/03/2008 | CN101256915A Puffer circuit breaker with reduced puffer volume pressure |
| 09/03/2008 | CN101256914A High-voltage circuit-breaker rotating servo motor operating mechanism |
| 09/03/2008 | CN101256913A High-voltage circuit-breaker lateral direction magnetic field permanent magnetism straight line motor operating mechanism |
| 09/03/2008 | CN101256907A Non-arc breaking circuit based on variable capacitance and method thereof |
| 08/28/2008 | US20080203063 Vacuum interrupter chamber |
| 08/28/2008 | US20080203062 Switchgear |
| 08/28/2008 | US20080203061 Gas-circuit breaker |
| 08/27/2008 | EP1961029A1 Vacuum interrupter |
| 08/27/2008 | EP1961028A2 Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device |
| 08/27/2008 | EP1961027A1 Load interrupter for an encapsulated switchgear and permanent magnet system for a load interrupter |
| 08/27/2008 | EP1961026A1 Electric switchgear, particularly high-voltage circuit-breaker, comprising a housing |
| 08/27/2008 | EP1155487B1 Circuit breaker |
| 08/27/2008 | CN201107802Y Permanent magnetism switching type circuit breakers |
| 08/27/2008 | CN101252055A Circuit breaker and opening and closing method thereof |
| 08/27/2008 | CN101252054A Gas switch |
| 08/27/2008 | CN101252053A Electronic electromagnetical type intelligent switch |
| 08/27/2008 | CN101251199A Monostable permanent magnetism hydraulic valve for hydraulic pressure spring operating mechanism |
| 08/27/2008 | CN101251198A Bistable permanent magnetism hydraulic valve for hydraulic pressure spring operating mechanism |
| 08/27/2008 | CN100414795C Arc-resistant switchgear enclosure |
| 08/27/2008 | CN100414655C Bidirectional energy-storage high-speed disjunction contact for extra-high voltage breaker |
| 08/26/2008 | US7417846 Gas-insulated switchgear |
| 08/21/2008 | WO2008100511A1 Vacuum switchgear assembly and system |
| 08/21/2008 | WO2008099495A1 Phase control switchgear |
| 08/21/2008 | WO2008080858A3 Compressed-gas cutout having a radial flow opening |
| 08/21/2008 | WO2008080858A2 Compressed-gas cutout having a radial flow opening |
| 08/21/2008 | US20080197114 Contact Arrangement for a Vacuum Switch |
| 08/21/2008 | US20080197113 Electromechanical Circuit Breaker and Method of Breaking the Current in Said Electromechanical Circuit Breaker |
| 08/21/2008 | US20080197008 Electrical Switchgear and Method for Operating an Electrical Switchgear |
| 08/21/2008 | DE102007005997A1 Strombegrenzende Lichtbogenlöscheinrichtung Current-limiting arc quenching device |
| 08/21/2008 | CA2714744A1 Vacuum switchgear assembly and system |
| 08/20/2008 | EP1959471A1 Switchgear |
| 08/20/2008 | CN201103581Y Hydraulic automatic control valve |
| 08/20/2008 | CN101246788A Vacuum switchgear |
| 08/14/2008 | WO2008095954A1 Cast housing made of insulating material, method for the production thereof, switch device and method for the production thereof |
| 08/14/2008 | US20080191560 Power extractor with control loop |
| 08/14/2008 | US20080190895 Switchgear |
| 08/14/2008 | DE102007007695A1 Isolierstoff-Gussgehäuse, Verfahren zu seiner Herstellung, Schaltervorrichtung und Verfahren zu deren Herstellung Molded-iron housing, process for its preparation, switch device and process for their preparation |
| 08/13/2008 | EP1955345A1 Method for handling of high-voltage dielectric elements, as well as a high-voltage dielectric element |
| 08/13/2008 | EP1019995B1 Method and arrangement for low-pressure locking of a gas-filled device |
| 08/13/2008 | CN201100911Y LW24-72.5 outdoor high-voltage AC jar SF6 special breaker |
| 08/13/2008 | CN101243530A Insulating element for a medium-voltage switchgear |
| 08/12/2008 | US7410702 Electronic switch |
| 08/07/2008 | WO2008092815A2 A switching device, use thereof and a method for switching |
| 08/07/2008 | US20080185280 Circuit Breaker With Suspended Mobile Contact Assembly |
| 08/07/2008 | DE102007004528B3 Elektrisches Gleichstromnetz für Wasserfahrzeuge sowie für Offshoreanlagen mit erhöhter Abschaltsicherheit DC electrical power for marine propulsion and for offshore facilities with increased Deenergizing |
| 08/07/2008 | DE102007000153B3 Compensator for use in density monitor for compensating temperature influence, has connecting units connected with each other by bellows, which is filled with fluid, where end shape of bellows is produced by deposition of metallic molecules |
| 08/06/2008 | EP1953779A1 Quick-locking fuse circuit breaker |
| 08/06/2008 | EP1952415A1 Vacuum switchgear assembly, system and method |
| 08/06/2008 | EP1952414A1 Vacuum insulated switchgear |
| 08/06/2008 | CN101238534A Self-blast circuit breaker with control body |
| 08/06/2008 | CN101238533A Fixing device with field control characteristic |
| 08/06/2008 | CN101236858A Vacuum arc-extinction porcelain shell component and its making technology |
| 08/06/2008 | CN101236857A Improved method for making vacuum switch device |
| 08/06/2008 | CN101236856A Operation machine for cylinder permanent magnetic line motor of high-voltage breaker |
| 08/06/2008 | CN100409389C Vacuum interrupter |
| 08/05/2008 | US7408357 Device for detecting contact wear in switching appliances |
| 08/05/2008 | CA2331013C Low voltage multipole circuit breaker with high electrodynamic resistance, whereof the pole shaft is arranged in the compartment housing the poles |
| 07/31/2008 | WO2008090178A1 Electric direct current network for water vessels and for offshore units |
| 07/31/2008 | WO2008090175A1 Electric direct current network for water vessels and for offshore units having increased shut-off security |
| 07/31/2008 | DE102007004527A1 Elektrisches Gleichstromnetz für Wasserfahrzeuge sowie für Offshoreanlagen DC electrical power for marine propulsion and offshore installations |
| 07/31/2008 | DE102007004430A1 Vacuum circuit breaker, has vapor shield made up of electrically conducting material, which is so aligned that electrical capacitance is provided between vapor shield and another electrical conducting part of vacuum circuit breaker |
| 07/30/2008 | EP1949516A1 Circuit testing closer apparatus and method with in-rush current awareness |
| 07/30/2008 | EP1949398A2 Circuit interrupter assembly and method of making the same |
| 07/30/2008 | EP1949397A1 Electro-magnetic force driving actuator and circuit breaker using the same |
| 07/30/2008 | CN101233593A Electrical switchgear and method for operating an electrical switchgear |
| 07/30/2008 | CN100407351C 真空开关设备的单相模块及真空开关设备 Single-phase module vacuum switchgear and vacuum switchgear |
| 07/29/2008 | US7405369 Interlock apparatus and method for disconnect switches |
| 07/24/2008 | WO2008087060A1 Pole for a gas-insulated high-voltage switch and method for producing a switch pole of this type |
| 07/24/2008 | DE202007018426U1 Vakuumschalter Vacuum Switches |
| 07/23/2008 | EP1947669A1 Pole for a gas insulated high voltage switch and method for producing such a switch pole |
| 07/23/2008 | EP1590821B1 High voltage operating rod sensor and method of making the same |
| 07/23/2008 | CN101226847A AC high voltage vacuum breaker |
| 07/23/2008 | CN101226846A Gas-insulated switch |
| 07/23/2008 | CN101226845A Contact drive assembly |
| 07/23/2008 | CN101226844A Three-pole apparatus for a medium or high voltage cubicle and associated cubicle comprising such a three-pole apparatus |
| 07/23/2008 | CN100405514C Hydraulic operation device |