| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 01/24/2002 | US20020008084 Gas-insulated switchgear |
| 01/23/2002 | EP1174968A1 High voltage switchgear |
| 01/23/2002 | EP0974152B1 Electric arc explosion chamber system |
| 01/23/2002 | CN2473737Y New vacuum load isolating switch |
| 01/23/2002 | CN2473731Y Novel high voltage vacuum contactor |
| 01/23/2002 | CN1332465A Light controlled modualr high-pressure vacuum switch techonlogy |
| 01/17/2002 | WO2002005303A1 Bolted conical loading joint system |
| 01/17/2002 | DE10032656A1 High tension open air bushing for metal-clad switches in electrical switchyards, uses curved inner end for bushing to allow insulators to be angled apart to maintain clearance |
| 01/17/2002 | CA2384934A1 Bolted conical loading joint system |
| 01/16/2002 | EP1172834A2 Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same |
| 01/16/2002 | EP1172833A1 Electromagnetic repulsion driven swich |
| 01/16/2002 | EP0850486B1 Electrical switch |
| 01/16/2002 | CN2472336Y Automatic vacuum voltage load switch on post |
| 01/16/2002 | CN2472335Y Automatic vacuum load switch on post |
| 01/16/2002 | CN2472334Y Isolating switch-circuit breaker assembly |
| 01/16/2002 | CN1078006C Transient restoring voltage control method, and gas insulation switch used in this method |
| 01/10/2002 | US20020003380 Method of synchronizing the switching of a circuit breaker with voltage waveform |
| 01/10/2002 | US20020003128 Drive rod for a high-voltage circuit-breaker |
| 01/10/2002 | DE10030670A1 Vakuumschaltröhre mit zwei Kontaktsystemen Vacuum interrupter with two contact systems |
| 01/09/2002 | EP1170766A1 Actuating rod for a high tension circuit breaker |
| 01/09/2002 | EP1170762A2 Arrangement having a contact element which can be brought into contact with another contact element |
| 01/09/2002 | CN1330379A Method for switching synchronous with voltage waveform of circuit breaker |
| 01/09/2002 | CN1077721C 同步式气体开关装置 Synchronous gas switchgear |
| 01/08/2002 | US6337613 Three-phase high-current switchgear apparatus with twinned poles per phase, equipped with magnetic compensation circuits |
| 01/03/2002 | US20020000425 Circuit-breaker including a moving assembly contained inside a casing filled with a dielectric gas under pressure |
| 01/03/2002 | DE10030187A1 Verfahren zum Öffnen der Schaltstrecke einer Vakuumschaltröhre Method for opening the contact gap of a vacuum interrupter |
| 01/03/2002 | DE10029763A1 Vakuumschaltröhre Vacuum interrupter |
| 01/03/2002 | CA2351784A1 Handling rod for high voltage circuit breaker |
| 01/02/2002 | EP1168398A1 Method of syncronisation of switching operation of a circuit breaker with voltage waveform |
| 01/02/2002 | EP1168397A1 Static power switch device |
| 01/02/2002 | EP1168392A1 Contactor |
| 01/02/2002 | EP1068624B1 Encapsulating module with a three-position switch integrated into a current path for a gas-insulated switchgear installation |
| 01/02/2002 | CN2469539Y Zero arcing low-voltage circuit breaker |
| 01/02/2002 | CN1077327C Buffer gas breaker |
| 01/02/2002 | CN1077326C Fluid pressure drive device for circuit breaker and circuit breaker using the same |
| 01/01/2002 | US6335502 Vacuum switch and vacuum switch gear using the vacuum switch |
| 01/01/2002 | CA2221942C Insulating component for high-voltage equipment |
| 01/01/2002 | CA2054509C Multipore rotary switch |
| 12/27/2001 | WO2001099133A1 Method for opening the contact gap of a vacuum interrupter |
| 12/27/2001 | WO2001099132A1 Vacuum interrupter with two contact systems |
| 12/26/2001 | CN2468153Y Oil-immersed magnetic starter and contactor |
| 12/26/2001 | CN1328691A Electric circuit breaker |
| 12/26/2001 | CN1076858C Vertical antitracking skirts |
| 12/26/2001 | CN1076649C Welding material for welding vacuum gas sealing container, vacuum gas sealing container and mfg. method therefor |
| 12/25/2001 | US6333568 Switching arrangement and process for switching off an electric energy source of a vehicle |
| 12/25/2001 | CA2214966C High-voltage circuit breaker with damper |
| 12/25/2001 | CA2045051C Low voltage electrical switchgear cabinet |
| 12/20/2001 | WO2001097242A1 Vacuum switch tubes |
| 12/20/2001 | WO2001097241A2 Circuit breaker actuator |
| 12/20/2001 | WO2001096827A2 Internal fault indicator for power electrical devices |
| 12/19/2001 | EP1164611A1 High voltage switchgear |
| 12/19/2001 | EP1164610A1 High voltage switchgear |
| 12/19/2001 | EP1164609A1 High voltage switchgear |
| 12/19/2001 | EP1164608A1 High voltage switchgear |
| 12/19/2001 | EP1050058B1 Vacuum interrupter chamber with a ring-shaped isolator |
| 12/19/2001 | EP1010187B1 Power circuit breaker with an actuating shaft |
| 12/19/2001 | EP0992046B1 Low-voltage power switch with an actuating shaft |
| 12/19/2001 | CN1327607A Electromagnetic repulsion driven switch |
| 12/19/2001 | CN1327604A Contactor |
| 12/19/2001 | CN1327438A Joining method for ceramic and metal and joined body of ceramics and metal joined by the method |
| 12/19/2001 | CN1327285A Gas insulation switch device |
| 12/19/2001 | CN1327249A Circuit breaker of movable module held in casing filled with pressurised insulation gas |
| 12/19/2001 | CN1076515C 断路器 Breaker |
| 12/19/2001 | CN1076514C Cut-off device for metal-enclosed and gas insulated high voltage switch device |
| 12/18/2001 | US6331687 Control method and device for a switchgear actuator |
| 12/13/2001 | WO2001095356A1 A method and an apparatus for controlling an electric switching device |
| 12/13/2001 | WO2001095355A1 A method and an apparatus for opening a current path |
| 12/13/2001 | WO2001095354A1 A method and a device for prediction of a zero-crossing of an alternating current |
| 12/12/2001 | EP1064663B1 Gas-insulated load-break switch with a quenching coil |
| 12/12/2001 | EP1053556B1 Electromagnetic current releasing device for electrical circuit breaker |
| 12/12/2001 | CN2465304Y Wall-penerating tpye vacuum isolation loading switch |
| 12/12/2001 | CN2465303Y Electric driving mechanism for load switch of box type transformer station |
| 12/12/2001 | CN1326252A Vacuum circuit breaker |
| 12/12/2001 | CN1326206A Insulative nozzle for circuit breaker |
| 12/12/2001 | CN1326054A Hydraulic activator |
| 12/12/2001 | CN1076117C 真空阀 Vacuum valve |
| 12/11/2001 | US6329615 Device for interlocking the manual actuation of a switch with the help of locks |
| 12/06/2001 | US20010047981 Vacuum cartridge in particular for an electrical protection apparatus such as a switch or a circuit breaker |
| 12/05/2001 | EP1160947A1 Gas-insulated switchgear |
| 12/05/2001 | EP1160816A1 Frame structure for vacuum tube of a power switch module |
| 12/05/2001 | EP0953199B1 High-voltage power switch with an axially displaceable field electrode |
| 12/05/2001 | CN2463944Y Arc-extinguishing chamber for self thermal expansion tpye high-voltage sulphur hexafluoride circuit breaker |
| 12/05/2001 | CN2463943Y Integrated power switch contact |
| 12/05/2001 | CN2463942Y Integrated power switch contact |
| 12/04/2001 | US6326872 Power circuit breaker with air gap between molded insulative casing and grounded barrier insulating operating mechanism |
| 12/04/2001 | US6326868 Rotary contact assembly for high ampere-rated circuit breaker |
| 12/04/2001 | US6326573 Vacuum switching device |
| 12/04/2001 | US6326567 Multi-pole breaker assembly |
| 12/04/2001 | CA2038078C Operating mechanism of a three position switch |
| 11/29/2001 | WO2001091151A1 Combination of a vacuum interruption device and oil-filled transformer |
| 11/29/2001 | US20010045410 Insulating blast nozzle for a circuit breaker |
| 11/29/2001 | CA2410703A1 Combination of a vacuum interruption device and oil-filled transformer |
| 11/28/2001 | EP1158556A1 Insulation blowing nozzle for circuit breaker |
| 11/28/2001 | EP1158555A2 Vacuum circuit interrupter |
| 11/28/2001 | CN2462533Y Multifunctional bridging segmenting device |
| 11/28/2001 | CN2462529Y Instantaneous conversion tech switch |
| 11/28/2001 | CN1324128A Gas isolating switching equipment having vacuum switch |
| 11/28/2001 | CN1075663C Vacuum electrical switch |
| 11/21/2001 | EP1156565A2 Gas insulated switchgear with vacuum switch |
| 11/21/2001 | EP1156502A1 Actuator of power load-break switch |