| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 03/06/2008 | WO2008025307A1 Contact piece for a vacuum switch and method for producing a contact piece |
| 03/06/2008 | US20080053961 Metal-clad electrical equipment including a particle trap |
| 03/06/2008 | US20080053960 Arc-resistant switchgear enclosure |
| 03/06/2008 | DE102006041250A1 Antriebseinheit Drive unit |
| 03/06/2008 | DE102004050786C5 Kupplungsvorrichtung mit Kühlkörper Coupling device with heat sink |
| 03/05/2008 | EP1895558A1 Electrical device in a metal casing comprising a particulate trap |
| 03/05/2008 | EP1895556A1 Drive unit |
| 03/05/2008 | CN201032616Y Bistable permanent-magnet folding device |
| 03/05/2008 | CN101136290A Arc-chute of 40.5kV hexafluoride sulphur circuit breaker |
| 03/05/2008 | CN100373515C Vacuum switchgear system |
| 03/05/2008 | CN100373514C Gas insulation opening/closing apparatus |
| 03/05/2008 | CN100373513C Moving mechanism of air flow control ring of high-voltage arc-extinguish chamber |
| 03/04/2008 | US7339132 Method of current interruption using puffer type gas circuit breaker with combined-action of cylinder and piston |
| 02/27/2008 | CN101133471A Switching device with a heat tube |
| 02/27/2008 | CN101131902A High-voltage circuit-breaker time-delay pilot switch adopting compressed spring over-center mechanism |
| 02/27/2008 | CN101131901A Torsional spring time-delay pilot switch used for short-time control of high-voltage circuit-breaker |
| 02/26/2008 | US7334319 Method for opening the contact gap of a vacuum interrupter |
| 02/21/2008 | US20080041825 Vacuum encapsulation having an empty chamber |
| 02/21/2008 | DE10220110B4 Vakuumschaltkammer Vacuum interrupter chamber |
| 02/20/2008 | EP1889274A1 Contact arrangement for a vacuum switch |
| 02/20/2008 | EP1889273A1 Drive arrangement with a drive device of an electrical switchgear and method for operating the drive arrangement |
| 02/20/2008 | CN101127281A A vacuum breaker for dual stabilized permanent magnetic machine |
| 02/20/2008 | CN101127280A Production technology for solid sealing electrode pole of high voltage vacuum breaker |
| 02/20/2008 | CN101127279A Multi-pole piston jar pump combination device for hydraulic pressure operation machine of high voltage breaker |
| 02/20/2008 | CN101126774A Arc root current density distribution test method and device |
| 02/20/2008 | CN100370670C Overvoltage protecting device based on hollow electrode |
| 02/20/2008 | CN100370565C Controllable discharge switch of high-energy impulse in three electrodes under vacuum environment |
| 02/20/2008 | CN100370564C Single-break-port breaker of 550 KV voltage grade |
| 02/14/2008 | DE102007012442A1 Electric switching device e.g. for motor protection, has magnetized component consisting of plastics material filled with magnetically soft powder |
| 02/13/2008 | CN201022063Y Operation machine for three work position load switch |
| 02/13/2008 | CN101123150A Quick electromagnetic push driven machine |
| 02/13/2008 | CN100369173C Linear magnetic drive |
| 02/13/2008 | CN100369172C 真空断路器 Vacuum Circuit Breaker |
| 02/12/2008 | US7330097 Direct current cutoff switch |
| 02/06/2008 | CN201017812Y SF6 direct-action pneumatic type switch |
| 02/06/2008 | CN201017811Y Permanent magnet control mechanism of high-voltage vacuum breaker |
| 02/06/2008 | CN201017810Y Outer thimble of outdoors vacuum breaker |
| 02/06/2008 | CN201017809Y Integral switch |
| 02/06/2008 | CN101120423A Generator switch having improved switching capacity |
| 02/06/2008 | CN101119013A Distribution switchgear |
| 02/06/2008 | CN101118815A Medium or high voltage electrical equipment control device and method of controlling a medium or high voltage electrical equipment control device |
| 02/06/2008 | CN100367588C Solid-state insulated switchgear, resin molding and method of manufacturing the resin molding thereof |
| 02/06/2008 | CN100367430C Electromagnetic actuator |
| 02/06/2008 | CN100367425C Magnetic actuator |
| 02/06/2008 | CN100367424C Arc contact element for electrical apparatus, production method thereof, corresponding contact assembly and electrical apparatus |
| 01/31/2008 | WO2008013891A2 Conductor connection |
| 01/31/2008 | WO2008012238A1 Insulating nozzle, comprising a first material and a second material |
| 01/31/2008 | US20080023445 Switching Contfact for Vacuum Interrupters |
| 01/31/2008 | DE102006034742A1 Isolierstoffdüse, welche ein erstes Material und ein zweites Material aufweist Insulating material having a first material and a second material |
| 01/30/2008 | CN201015105Y Power switch, especially strong current switch |
| 01/30/2008 | CN101116163A Interrupting chamber for a gas insulated high voltage circuit breaker |
| 01/30/2008 | CN100365902C Energy distribution network |
| 01/30/2008 | CN100365894C Gas-insulated switchgear |
| 01/29/2008 | US7323652 Gas insulated switchgear |
| 01/24/2008 | US20080019063 Method and apparatus for disconnection of a fault current which has occured in an AC power supply system |
| 01/24/2008 | DE19702094B4 Leistungsschaltvorrichtung Power switching device |
| 01/23/2008 | CN201011645Y Contactor mounted with arc extinguishing chamber conjoined base |
| 01/23/2008 | CN101111915A Nozzle fastening for electrical switching apparatus |
| 01/23/2008 | CN101111914A Method for producing a contact piece, and corresponding contact piece for a vacuum interrupter chamber |
| 01/23/2008 | CN100363748C On-line detecting and positioning device for local discharging of electrical insulated combined electrical appliance, and positioning method thereof |
| 01/17/2008 | WO2008006915A1 Modular encapsulated electrical device for power distribution networks |
| 01/17/2008 | WO2008006847A1 Drive arrangement having a common drive device for a plurality of switchgears of an electric switching device |
| 01/17/2008 | US20080011719 Heavy-duty circuit-breaker with sealing against hot gas |
| 01/17/2008 | DE102006033515A1 Antriebsanordnung mit einer gemeinsamen Antriebseinrichtung für mehrere Schaltpole eines elektrischen Schaltgerätes A drive arrangement with a common drive device for a plurality of switching poles of an electrical switching device |
| 01/16/2008 | EP1879207A1 Rack and pinion gear for a switch |
| 01/16/2008 | CN201007972Y Switch equipment for power system |
| 01/16/2008 | CN201007971Y High-tension vacuum arc-extinguishing chamber solid sealed phase pole |
| 01/16/2008 | CN201007970Y Outdoor column vacuum load dropping fuse |
| 01/16/2008 | CN201007969Y Stepping closedown flame-proof type vacuum feeder switch for mining |
| 01/16/2008 | CN201007968Y Universal operation mechanism for load switch |
| 01/16/2008 | CN201007948Y Spring operated mechanism accumulated energy unit |
| 01/16/2008 | CN101106036A Rotary electric arch pulse power switch |
| 01/16/2008 | CN101106035A Central type vacuum circuit breaker for preventing heat stress and vapor condensation |
| 01/16/2008 | CN101106034A Three-position vacuum interrupter disconnect switch providing current interruption, disconnection and grounding |
| 01/16/2008 | CN101106026A Monostable self-locking type air gas variable permanent magnet operation device |
| 01/15/2008 | US7319199 Fusible electric slide switch |
| 01/10/2008 | WO2008004086A1 A subsea arrangement |
| 01/10/2008 | US20080006609 Generator circuit breaker with improved switching capacity |
| 01/10/2008 | US20080006608 Heavy-duty circuit breaker with erosion-resistant short-circuit current routing |
| 01/10/2008 | DE102006031219A1 Leistungsschalter mit einem Gehäuse Circuit breaker with a housing |
| 01/09/2008 | EP1876625A1 High voltage circuit breaker |
| 01/09/2008 | EP1875580A1 A device for reduction of voltage derivative |
| 01/09/2008 | CN201004415Y Vacuum isolation switch for mine combined switch |
| 01/09/2008 | CN201004414Y Explosion-proof multi-function vacuum feedback switch for mine |
| 01/09/2008 | CN201004413Y Permanent magnetic vacuum breaker with four connection poles |
| 01/09/2008 | CN201004412Y Spring liquid pressure operation machine |
| 01/09/2008 | CN101101832A High capacity vacuum load switch |
| 01/09/2008 | CN101101831A Connector system for an insulated switch with provision for grounding and visible break |
| 01/09/2008 | CN101101823A Adaptable arc chute for circuit breaker |
| 01/09/2008 | CN101101821A Circuit breaker set with interlocking apparatus |
| 01/09/2008 | CN100361255C Contact finger for a high-power switchgear |
| 01/09/2008 | CN100361249C Rocker unit for moving a displaceable contact of a switching device |
| 01/09/2008 | CN100361248C Drive device for a switching tube with a fixed and movable contact part |
| 01/09/2008 | CN100361243C Direct current cutoff switch |
| 01/08/2008 | CA2496945C Phase control switching device |
| 01/03/2008 | WO2008002366A2 Vacuum recloser |
| 01/03/2008 | WO2008001589A1 Ground disconnector |
| 01/03/2008 | US20080000879 Vacuum circuit breaker having a high current-carrying capacity |
| 01/03/2008 | US20080000762 Switch device |
| 01/03/2008 | DE102006031220A1 Getriebeanordnung zum Antrieb eines elektrischen Schaltkontaktes Transmission arrangement for driving an electrical switch contact |