| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 03/10/2009 | US7501598 Connector system for an insulated switch with provision for grounding and visible break |
| 03/05/2009 | WO2009028035A1 Method and device for diagnosing remaining lifetime of switchgear |
| 03/05/2009 | WO2009027484A1 Device for controlling a motor-driven switch drive for a switching device |
| 03/05/2009 | WO2009026804A1 Dynamic sealing device for middle- or high-voltage power switch equipment |
| 03/04/2009 | EP1829075B1 High voltage switchgear |
| 03/04/2009 | CN201204152Y Switchingin holding mechanism for vacuum circuit-breaker |
| 03/04/2009 | CN201204151Y Interlocking mechanism for vacuum circuit-breaker |
| 03/04/2009 | CN201204150Y Oil/gas separator for hydraulic operation mechanism of high-voltage circuit-breaker |
| 03/04/2009 | CN201204149Y Composite linear type isolating switch with rapid grounding switch |
| 03/04/2009 | CN201204135Y Installation fixture for vacuum circuit-breaker arc extinguishing chamber |
| 03/04/2009 | CN101379579A Vacuum-type electrical switching apparatus |
| 03/04/2009 | CN101377985A Dynamic sealing device for middle/high voltage power switchgear |
| 03/04/2009 | CN101377984A Gas circuit breaker |
| 03/03/2009 | US7498540 Gas-blast circuit breaker |
| 03/03/2009 | US7497122 Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device |
| 02/26/2009 | US20090050605 Circuit breaker having automatic release linkage |
| 02/25/2009 | EP2028676A2 Automatically configuring vacuum contactor |
| 02/25/2009 | EP1662532B1 Operating unit for switchgear |
| 02/25/2009 | EP1573766B1 Electromagnetic actuator |
| 02/25/2009 | CN201199504Y Vacuum arc-extinguishing chamber |
| 02/25/2009 | CN201199503Y Electric operation mechanism for outdoor AC high voltage isolating switch |
| 02/25/2009 | CN101375360A Alternator circuit-breaker disconnecting switch of compact structure |
| 02/25/2009 | CN101375359A Status holding apparatus and switching control device equipped with the same |
| 02/25/2009 | CN101375358A Motorized loadbreak switch control system and method |
| 02/25/2009 | CN101375357A Generator isolator with inserted resistor |
| 02/25/2009 | CN101375356A Electrical switching device with potential control |
| 02/25/2009 | CN101373910A Drive motor of spring energy-storing device in air circuit breaker |
| 02/25/2009 | CN101373678A Vacuum contact switch controlled by permanent magnetism |
| 02/25/2009 | CN100464384C Low voltage heavy current tank loop with arc-striking branch |
| 02/24/2009 | US7495190 Electrical switch |
| 02/19/2009 | WO2009021899A1 Electromagnetic actuator |
| 02/19/2009 | WO2009021882A1 Switch arrangement for a switchgear assembly |
| 02/19/2009 | WO2009021880A1 Pole unit for a vacuum circuit breaker |
| 02/19/2009 | US20090045171 Circuit breaker with high speed mechanically-interlocked grounding switch |
| 02/19/2009 | US20090045170 Earthing switch |
| 02/19/2009 | DE10305464B4 Schaltanlage mit Abschirmelementen zum Abschirmen parasitärer Magnetfelder Switchgear with shielding to shield parasitic magnetic fields |
| 02/18/2009 | EP2026432A2 Switch module for an electrical switch device |
| 02/18/2009 | EP2026431A2 Switch module for an electrical switch device |
| 02/18/2009 | EP2024985A1 Polyphase switch panel for medium-voltage switchgear assemblies |
| 02/18/2009 | CN201196930Y Accumulation energy holding and tripping device of vacuum circuit breaker employing two-stage semi-shaft force reduction |
| 02/18/2009 | CN201196929Y Switch-on holding and tripping device of vacuum circuit breaker employing two-stage semi-shaft force reduction |
| 02/18/2009 | CN201196928Y Transverse magnetic field permanent magnet linear electric motor operation mechanism of high-voltage circuit-breaker |
| 02/18/2009 | CN201196927Y Short-circuiting switch for aluminum electrolysis |
| 02/18/2009 | CN101369498A Grounding switch device |
| 02/18/2009 | CN100463092C High voltage vacuum circuit breaker with high rated current |
| 02/17/2009 | US7493176 Low-voltage module |
| 02/12/2009 | WO2009019732A1 Flow adjustment arrangement for a buchholz relay |
| 02/12/2009 | DE19912022B4 Hochspannungsschaltgerät mit Serienschaltung von mindestens zwei Vakuumschaltkammern und Verfahren zum Betrieb des Hochspannungsschallgerätes High-voltage switching device with a series connection of at least two vacuum switching chambers and method of operation of the high voltage noise device |
| 02/12/2009 | DE112007000724T5 Schaltgerät und Verfahren zu dessen Herstellung Switching device and process for its preparation |
| 02/12/2009 | DE102007042041B3 Schalterpol für ein Stromnetz A pole of power supply network |
| 02/11/2009 | EP2023361A1 Three-phase switching device in metal casing with reduced dimensions and phase transmission forces |
| 02/11/2009 | EP2022068A1 Gas-insulated switchpanel of a medium-voltage switchgear assembly |
| 02/11/2009 | CN101364715A Three-phase switching device in metal casing with reduced dimensions and phase transmission forces |
| 02/11/2009 | CN101364498A Hydraulic operating mechanism for medium/high voltage circuit breaker |
| 02/11/2009 | CN100461567C Small size vacuum loading switch cabinet |
| 02/10/2009 | US7488916 Vacuum switchgear assembly, system and method |
| 02/10/2009 | US7488915 ARC baffle, and ARC chute assembly and electrical switching apparatus employing the same |
| 02/05/2009 | WO2009016814A1 Opening/closing device, and opening/closing device operating mechanism |
| 02/05/2009 | US20090032500 Vacuum insulated switch and vacuum insulated switchgear |
| 02/05/2009 | DE102007004430B4 Vakuumschalter Vacuum Switches |
| 02/05/2009 | DE102006021772B4 Verfahren zur Herstellung von Kupfer-Chrom-Kontakten für Vakuumschalter und zugehörige Schaltkontakte A process for producing copper-chromium contacts for vacuum switches and associated switch contacts |
| 02/04/2009 | EP2020668A2 Vacuum insulated switch and vacuum insulated switchgear |
| 02/04/2009 | CN201191582Y Sliding contact tip construction of medium-voltage switch |
| 02/04/2009 | CN201191581Y Outer housing construction of medium-voltage switch |
| 02/04/2009 | CN201191580Y Load switch operating mechanism for switch cabinet |
| 02/04/2009 | CN201191579Y Three phase in one solid sealed pole of medium-voltage switch |
| 02/04/2009 | CN201191578Y Insulation rotary axis of medium voltage switch |
| 02/04/2009 | CN101361151A Vacuum switchgear assembly, system and method |
| 02/04/2009 | CN101359557A Vacuum switch contact |
| 02/04/2009 | CN101359556A Vacuum switch contact |
| 02/04/2009 | CN101359555A Vacuum switch contact |
| 02/04/2009 | CN101359554A Vacuum switch contact |
| 02/04/2009 | CN101359553A Vacuum switch tube |
| 02/04/2009 | CN101359552A Vacuum switch tube |
| 02/04/2009 | CN101359551A Vacuum switch tube |
| 02/04/2009 | CN101359550A Vacuum switch tube |
| 02/04/2009 | CN101359549A 真空开关管 Vacuum switch |
| 02/04/2009 | CN101359548A Vacuum insulated switch and vacuum insulated switchgear |
| 02/04/2009 | CN100459008C Vacuum switch with up and low isolations |
| 02/04/2009 | CN100459007C Volume-regulating type arc-extinction device |
| 01/29/2009 | WO2009014603A1 Cutouts with automatic reclosing |
| 01/29/2009 | WO2009013292A1 Electronic vacuum switch with main parameters quickly settable also during operation of the plant under control |
| 01/29/2009 | DE102006062225B4 System eines feststoffisolierten Schalterpols System of a solid-insulated switch pole |
| 01/28/2009 | EP2018647A1 Circuit breaker |
| 01/28/2009 | EP2018445A2 Method for the production of copper-chromium contacts for vacuum switches, and associated switching contacts |
| 01/28/2009 | CN201188395Y Sluice-dividing tripping device for indoor high voltage AC vacuum circuit-breaker |
| 01/28/2009 | CN201188394Y Switching-in operation mechanism for indoor high voltage AC vacuum circuit-breaker |
| 01/28/2009 | CN201188393Y Flat type permanent magnet linear motor operation mechanism for high-voltage circuit-breaker |
| 01/28/2009 | CN201188392Y Cylinder type permanent magnet linear motor operation mechanism for high-voltage circuit-breaker |
| 01/28/2009 | CN201188391Y Rotation servo motor operation mechanism for high-voltage circuit breaker |
| 01/28/2009 | CN201188390Y High voltage isolation switch of 10KV |
| 01/28/2009 | CN201188368Y Integral-molding compound material insulation drive tube with insert |
| 01/28/2009 | CN201187598Y Bistable permanent magnetism hydraulic valve for hydraulic spring operating mechanism |
| 01/28/2009 | CN101356612A Circuit breaker for a gas-insulated high-voltage switchgear assembly |
| 01/28/2009 | CN101354978A Wetness contact intelligence control power load switch |
| 01/28/2009 | CN101354977A Arc-extinguishing device for load switch |
| 01/28/2009 | CN100455550C Switch container for hermetically encapsulating switch members and method for producing the same |
| 01/27/2009 | US7482902 Linear magnetic drive |
| 01/22/2009 | WO2009010493A1 Transformer arrangement of a metal-encapsulated, gas-insulated switchgear, and corresponding switchgear |
| 01/22/2009 | US20090020508 Contact drive arrangement |