| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 04/17/2008 | WO2008043665A1 Switching device for electric power system |
| 04/17/2008 | US20080087647 Self-Adhesive Elastomer Layer In Circuit-Breaker Poles Insulated By Solid Material |
| 04/16/2008 | EP1912235A1 Activation by contacts of an interruptor tube with double movement by an insulating tube |
| 04/16/2008 | EP1911057A1 Electrical switchgear |
| 04/16/2008 | CN201048105Y DC fast chopper |
| 04/16/2008 | CN101164131A Load disconnecting switch and switchgear with a load disconnecting switch |
| 04/16/2008 | CN101162663A Cyclone type nozzle high-pressure blowing circuit breakers with groove |
| 04/16/2008 | CN101162662A Cyclone type nozzle high-pressure blowing circuit breakers with blades |
| 04/16/2008 | CN101162661A Moving-type high-pressure AC vacuum contactor, fusible cut-out composite set |
| 04/16/2008 | CN101162660A Activation by contacts of an interrupter tube with double movement by an insulating tube |
| 04/16/2008 | CN101162659A Switch installation used for electrical power system |
| 04/16/2008 | CN100382221C Blowing breaker |
| 04/16/2008 | CN100382220C Permanent-magnet pulse electric operation mechanism having emergency sub-switching gear |
| 04/16/2008 | CN100382217C Transverter of mixed soft cut-off current-limiting circuit breaker |
| 04/15/2008 | US7357656 Electrical energy disconnection device |
| 04/15/2008 | CA2229684C Device for identifying the switched position in electrical switch gear |
| 04/10/2008 | WO2008041368A1 Breaker open/closure control system |
| 04/10/2008 | WO2008041352A1 Breaker open/closure controller |
| 04/10/2008 | WO2008040128A1 Method and device for suppressing vacuum switch restriking over-voltage |
| 04/10/2008 | US20080083704 Actuating the contacts of an interrupting chamber in opposite directions via an insulating tube |
| 04/10/2008 | DE10238950B4 Vakuumschaltgerät Vacuum switchgear |
| 04/10/2008 | DE102007002918A1 Load disconnector for operating switching contact of medium voltage system, has blocking device provided for spring force drive, which maintains spring in tightening position before reaching dead center positioning of spring |
| 04/10/2008 | CA2665446A1 Switching control system of circuit breaker |
| 04/09/2008 | EP1909302A1 A low-voltage circuit breaker with sealed interchangeable poles. |
| 04/09/2008 | EP1334500B1 Switching device |
| 04/09/2008 | CN201045720Y Pawl type accumulated energy device |
| 04/09/2008 | CN100380553C Small size spring operating mechanism for vacuum circuit breaker |
| 04/09/2008 | CN100380552C Interlocking device of inductive switching apparatus |
| 04/09/2008 | CN100380551C Operating unit for switchgear |
| 04/03/2008 | WO2008038421A1 Solenoid controlled opening/closing apparatus |
| 04/03/2008 | DE102007044475A1 Switching device operating mechanism, has locking lever pulled out when switching device is moved from closed state to opening sate, to rotate latch in direction opposite to pre-stressing direction of latch release spring |
| 04/02/2008 | EP1906425A1 Actuation of the contacts by cylindrical cam of an arcing-chamber with double movement. |
| 04/02/2008 | EP1906424A1 Device for checking the operation of a densitometer for medium- and high-voltage electrical devices and method for checking the operation of a densitometer |
| 04/02/2008 | EP1906423A1 A drive system |
| 04/02/2008 | CN201044334Y Submersible oil pump control cabinet |
| 04/02/2008 | CN101154532A Indoor A. C. high voltage isolative switch |
| 04/02/2008 | CN101154531A Switchgear and switchgear operating mechanism |
| 04/02/2008 | CN101154530A Contact terminal device for restraining transient state overvoltage of high-voltage isolating switch |
| 04/02/2008 | CN101154515A Manufacturing process for cam rail capable of installing switch lath |
| 04/02/2008 | CN101154514A Manufacturing process for cam rail simultaneously controlling multiple vacuum tube |
| 04/02/2008 | CN100378888C Electromagnetic repulsion driven switch |
| 04/02/2008 | CN100378885C Electromagnetic type switch device |
| 04/01/2008 | US7352551 Gas-insulated electrical installation provided with a device for dissipating energy produced by an electric arc |
| 03/29/2008 | CA2603158A1 Operation by cylindrical cam of the contacts of a dual-movement interrupter chamber |
| 03/27/2008 | US20080073188 External operation handle device |
| 03/27/2008 | US20080072678 Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device |
| 03/27/2008 | DE102006043632A1 Vakuumschalter Vacuum Switches |
| 03/27/2008 | DE102006043018A1 Vacuum interrupter chamber manufacturing method involves using small sized, evacuated container, where inner dimensions marginally exceed outer dimensions of vacuum chamber, and containers are connected with high capacity vacuum pumps |
| 03/27/2008 | DE102006042101A1 Vakuumschaltkammer für Mittel- und Hochspannungen Vacuum interrupter for medium and high voltages |
| 03/26/2008 | EP1903592A1 Vacuum insulated switchgear |
| 03/26/2008 | EP1747568B1 Direct current power supply and distribution installation for ships |
| 03/26/2008 | CN201041783Y A novel vacuum load or vacuum touch separation switch |
| 03/26/2008 | CN201041775Y Drive system for small middle voltage breaker spring operation machine with optimized design |
| 03/26/2008 | CN101150247A Vacuum insulated switchgear |
| 03/26/2008 | CN101150024A Vacuum switch |
| 03/26/2008 | CN101150023A External operation handle device |
| 03/26/2008 | CN100377265C Switchgear and supporting isolator |
| 03/20/2008 | US20080067153 Arc baffle, and arc chute assembly and electrical switching apparatus employing the same |
| 03/20/2008 | US20080067152 Vacuum insulated switchgear |
| 03/20/2008 | US20080067151 Vacuum Interrupter Chamber and Contact Arrangement for a Vacuum Circuit Breaker |
| 03/20/2008 | DE102007037637A1 Schaltanlage Switchgear |
| 03/19/2008 | EP1901324A2 Vacuum switch |
| 03/19/2008 | EP1899999A1 Electrical switchgear and method for operating an electrical switchgear |
| 03/19/2008 | EP1829077B1 Generator switch having an improved switching capacity |
| 03/19/2008 | EP1004159B1 A link switch |
| 03/19/2008 | CN201038601Y Small-sized vacuum ring main unit |
| 03/19/2008 | CN201038051Y A. C. high voltage vacuum circuit breaker |
| 03/19/2008 | CN201038050Y Universal operating mechanism for medium and low voltage vacuum circuit breaker |
| 03/19/2008 | CN201038049Y Brake separating device |
| 03/19/2008 | CN201038048Y Assembled type insulated fixed and sealed electrode for high voltage vacuum circuit breaker |
| 03/19/2008 | CN201038047Y Low-voltage intelligent vacuum circuit breaker |
| 03/19/2008 | CN201038046Y Highly intelligent duplicate power supply automatic switching device |
| 03/19/2008 | CN201038045Y Air circuit breaker adopting permanent-magnet operation device |
| 03/19/2008 | CN201038044Y Permanent-magnetic operating mechanism |
| 03/19/2008 | CN201038043Y Switching mechanism for intelligent double-power automatic switching device |
| 03/19/2008 | CN201038041Y Onload switch possessing fuse |
| 03/19/2008 | CN101145677A Special gas insulation combined appliance for electric railroad |
| 03/19/2008 | CN101145469A Low-voltage vacuum circuit breaker |
| 03/19/2008 | CN101145468A Automatic switching switch adopting permanent-magnet operation device |
| 03/19/2008 | CN101145467A Electronic electromagnetic type intelligent switch |
| 03/19/2008 | CN101145455A Grid-plate type arc-extinguishing equipment for AC-DC switch |
| 03/19/2008 | CN101145452A Switchgear apparatus |
| 03/13/2008 | WO2008028676A1 Vacuum circuit breaker |
| 03/13/2008 | WO2008028672A1 Vacuum circuit breaker |
| 03/13/2008 | US20080062013 Wall switch for wired and self-powered wireless controllers with recessed and flush mounting |
| 03/13/2008 | US20080061632 Switching Apparatus And Method For Varying An Impedance Of A Phase Line Of A Segment Of An Electrical Power Line |
| 03/13/2008 | US20080061037 Composite arc suppression device |
| 03/13/2008 | DE19925191B4 Kontaktanordnung für Vakuumschalter Contact arrangement for vacuum switches |
| 03/13/2008 | DE102006041149A1 Vakuumschaltkammer für Mittelspannungsschaltanlagen Vacuum interrupter for medium voltage switchgear |
| 03/12/2008 | EP1897107A1 Vacuum bulb for an electrical protection apparatus, such as a switch or a circuit breaker |
| 03/12/2008 | CN201036190Y Testing device of electric arc protection unit |
| 03/12/2008 | CN101142649A Electric supply circuit, switch actuating device and method for operating said switch actuating device |
| 03/12/2008 | CN101142648A Curve profile switch |
| 03/12/2008 | CN101142647A Magnetic actuating device |
| 03/12/2008 | CN101140837A Middle and high voltage vacuum circuit breaker |
| 03/12/2008 | CN101140836A Circuit breakers pole column and manufacturing method thereof |
| 03/12/2008 | CN100375211C Vacuum switch |
| 03/12/2008 | CN100375210C Arc-resistance piece structure and vacuum switch contact |
| 03/06/2008 | WO2008025699A1 Armature |
| 03/06/2008 | WO2008025545A1 Vacuum interrupter chamber for medium-voltage switchgear |