| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/05/2008 | DE102006026064B4 Elektrische Schaltanordnung und Montageverfahren Electric circuit and method of assembly |
| 06/04/2008 | EP1928065A1 Medium voltage gas-insulated switch-disconnector. |
| 06/04/2008 | EP1927123A1 Vacuum interrupter chamber |
| 06/04/2008 | EP1738380B1 Electrical medium- or high-voltage cutoff device |
| 06/04/2008 | EP1306867B1 Improvements made to fuse-holder bases |
| 06/04/2008 | CN201069748Y Jar device for controlling the close and open time of the high-voltage breaker |
| 06/04/2008 | CN201069736Y Condensation heating and weighting device for high-voltage power grid arc extinction gas sulfur hexafluoride |
| 06/04/2008 | CN101194332A Contact arrangement for a vacuum switch |
| 06/04/2008 | CN101194331A Drive arrangement with a drive device of an electrical switchgear and method for operating the drive arrangement |
| 06/04/2008 | CN101192483A Switchgear control apparatus |
| 06/04/2008 | CN101192482A Switch controlling device |
| 06/04/2008 | CA2611346A1 Circuit breaker with magnetically-coupled trip indicator |
| 05/29/2008 | DE112005003632T5 Leistungsschalter Circuit breaker |
| 05/29/2008 | DE102007055667A1 Arc extinguishing-resin molded body, useful for extinguishing electric arc in the circuit breaker, comprises a resin composition comprising a polyolefin resin, and a reactive, organic phosphorus based flame retardant |
| 05/28/2008 | EP1926116A1 Puffer circuit breaker with reduced puffer volume pressure |
| 05/28/2008 | EP1925007A1 Vacuum interrupter |
| 05/28/2008 | CN201066651Y Middle set vacuum breaker with creepage current distance |
| 05/28/2008 | CN201066650Y A novel vacuum arc extinction room |
| 05/28/2008 | CN201066649Y Installation mechanism for operation mechanism of outdoor AC high-voltage vacuum breaker |
| 05/28/2008 | CN201066648Y Breaker with novel spring operation mechanism |
| 05/28/2008 | CN101188168A Drive unit |
| 05/28/2008 | CN101188166A A permanent magnetic mechanism |
| 05/28/2008 | CN100390918C Contacts of vacuum switch |
| 05/27/2008 | US7378762 Electrical circuit for limiting switching-on current |
| 05/22/2008 | WO2008058445A1 Super high voltage interrupter for gis |
| 05/22/2008 | US20080116173 Electrical switching apparatus and vented case therefor |
| 05/21/2008 | EP1540683B1 High-voltage loadbreak switch with enhanced arc suppression |
| 05/21/2008 | EP1330831B1 Isolating nozzle for arc blow circuit breaker |
| 05/21/2008 | DE102007020238B3 Fastening a getter to a construction component of vacuum interrupter by copper, comprises welding the getter on composite material formed by intermediate layer and applying the getter material of the getter on a carrier from a metal strip |
| 05/21/2008 | CN201063423Y Epoxy-pouring dry type integrated transformer substation device |
| 05/21/2008 | CN201063418Y Epoxy-pouring solid insulation switch |
| 05/21/2008 | CN201063313Y Pressing device for vacuum bubble control cam disk mechanism of vacuum on-load tap-changer |
| 05/21/2008 | CN201063312Y Vacuum switch tube |
| 05/15/2008 | WO2008055753A1 High-voltage circuit breaker comprising a rotary arc |
| 05/15/2008 | US20080110738 Three-pole apparatus for a medium or high voltage cubicle and associated cubicle comprising such a three-pole apparatus |
| 05/14/2008 | EP1921646A2 Three-pole apparatus for a medium or high voltage cubicle comprising such a three-pole apparatus |
| 05/14/2008 | EP1920451A1 Method for producing circuit-breaker parts for low, medium and high-voltage switching stations and corresponding circuit-breaker part |
| 05/14/2008 | CN201060824Y Vacuum breaker |
| 05/14/2008 | CN201060794Y Vacuum breaker |
| 05/14/2008 | CN201060793Y Vacuum breaker of bistable permanent-magnet mechanism |
| 05/14/2008 | CN201060792Y Vacuum arc-extinguishing chamber for low carbon stainless structure |
| 05/14/2008 | CN201060791Y Compound cover board for vacuum arc-extinguishing chamber |
| 05/14/2008 | CN201060790Y Sealing ring for vacuum arc-extinguishing chamber |
| 05/14/2008 | CN201060789Y Contact of vacuum breaker |
| 05/14/2008 | CN201060788Y Indoor high-tension vacuum load switch-fuse combined electrical apparatus |
| 05/14/2008 | CN201060787Y Outdoors vacuum breaker |
| 05/14/2008 | CN201060786Y Vacuum switch and vacuum switch tube |
| 05/14/2008 | CN101178989A Longitudinal rotary type function composite type vacuum isolation circuit breakers |
| 05/14/2008 | CN101178984A Contact system capable of automatically change-over switching electric appliance |
| 05/14/2008 | CN100388403C Electrical contact made by sintering alloy, and its manufacturing method |
| 05/14/2008 | CN100388402C Indoor AC high-voltage closed load switch |
| 05/13/2008 | US7371987 Switching device |
| 05/13/2008 | US7371983 Structure of flexible element |
| 05/13/2008 | CA2283991C Switchgear apparatus comprising a mechanical visualization means with three positions |
| 05/10/2008 | CA2607534A1 Arc suppression circuit using a semi-conductor switch |
| 05/08/2008 | WO2008002366A3 Vacuum recloser |
| 05/08/2008 | US20080105654 Polyphase Switching Device Comprising at Least Three Similar Interrupter Units |
| 05/07/2008 | EP1917671A1 Insulating element for a medium-voltage switchgear |
| 05/07/2008 | EP1374263B1 Switching arrangement for low-voltage circuit breakers |
| 05/07/2008 | CN101174760A Gas insulation switch device and voltaic arc damage detecting method for component for the gas insulation switch device |
| 05/07/2008 | CN101174516A State monitoring device for circuit breaker |
| 05/07/2008 | CN100386932C Switching installation provided with an electrically insulating barrier |
| 05/07/2008 | CN100386835C Electric contacts and method of manufacturing thereof, and vacuum interrupter and vacuum circuit breaker using thereof |
| 05/07/2008 | CN100386834C Opening and closing device |
| 05/07/2008 | CN100386833C Method for limiting internal fast transient overvoltage of gas insulating switch |
| 05/06/2008 | US7368743 Device for detecting fluorescent trace material |
| 05/06/2008 | US7368679 Arrangement comprising a low voltage power switch and a switching gas damper provided with a carrier element and used for the low voltage power switch |
| 05/02/2008 | WO2008049351A1 Directly driving high current on loaded switch |
| 05/01/2008 | US20080099315 Watertight switch |
| 04/30/2008 | EP1916684A1 Gas-insulated high-voltage circuit breaker |
| 04/30/2008 | EP1466338B1 Non-linear magnetic field distribution in vacuum interrupter contacts |
| 04/30/2008 | DE19906972B4 Schalterpolteil mit Vakuumschaltkammer Schalterpolteil with vacuum interrupter chamber |
| 04/30/2008 | DE19816506B4 Leistungsschalter Circuit breaker |
| 04/30/2008 | CN201054335Y Permanent magnetic high-voltage vacuum beaker with intelligent module |
| 04/30/2008 | CN201054334Y Ripple tube for vacuum breaker |
| 04/30/2008 | CN201054333Y Operation machine |
| 04/30/2008 | CN201054332Y Output axis guiding device of operation machine for high-voltage breaker |
| 04/30/2008 | CN101170033A Operation by cylindrical cam of the contacts of a dual-movement interrupter chamber |
| 04/30/2008 | CN101170021A Switching mechanism |
| 04/30/2008 | CN101170014A Electric spring operation machine for switch device |
| 04/30/2008 | CN101169140A Hydraulic automatic control valve |
| 04/30/2008 | CN100385761C Electronic break-off unit with phase reset function and breaker including same |
| 04/30/2008 | CN100385591C Electric circuit breaker |
| 04/29/2008 | US7365453 Aqueous solution plate control system and method |
| 04/29/2008 | CA2271327C Actuator assembly with calibration means and electrical power switch apparatus incorporating the actuator assembly with calibration means |
| 04/24/2008 | WO2008047755A1 Power open/close device |
| 04/24/2008 | US20080093344 Electrical Switchgear |
| 04/24/2008 | DE102006050732A1 Electrical switchgear arrangement for use in e.g. direct current line voltage network, has impedance units including current path with ohmic resistance unit and another current path with capactive unit |
| 04/23/2008 | EP1914761A1 Actuator |
| 04/23/2008 | EP1914162A1 DC power distribution system |
| 04/23/2008 | EP1913662A2 Electrical connector |
| 04/23/2008 | EP1913621A1 Self-blast circuit breaker with control body |
| 04/23/2008 | EP1913620A1 Holding apparatus with field control properties |
| 04/23/2008 | EP1913619A1 Switch pole with supporting frame having latching means |
| 04/23/2008 | EP1076909B1 Multipole circuit-breaker |
| 04/23/2008 | CN201051465Y Processing device for high-voltage power grid arc extinction gas SF6 |
| 04/23/2008 | CN101167227A A device for reduction of voltage derivative |
| 04/23/2008 | CN101167149A Load-break switch |
| 04/23/2008 | CN100383906C Control device for starting at least two kinds of swtiching device in a cooperation manner |
| 04/17/2008 | WO2008043721A1 Interrupter tube with field distribution cylinder for high- or medium-voltage circuit breakers |