| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 03/01/2000 | CN2366961Y Four poles knife switch |
| 03/01/2000 | CN1245990A Gas insulating switch device |
| 02/29/2000 | CA2206950C High-voltage switch with resistor insertion upon closing |
| 02/29/2000 | CA2192136C Switch actuator |
| 02/29/2000 | CA2192135C Diaphragm seal for a high voltage switch environment |
| 02/24/2000 | WO2000010186A1 Drive element for the movable contact point of a high voltage power circuit breaker |
| 02/23/2000 | EP0981147A2 Power switch |
| 02/23/2000 | EP0980793A2 Circuit and procedure for switching off a vehicle electric source |
| 02/23/2000 | CN1049759C Arc-quenching compositions for high-voltage current limiting fuses and circuit interrupters |
| 02/22/2000 | US6028471 Switching device with parallel switch |
| 02/22/2000 | US6027821 Contact material for vacuum interrupter and method for producing the same |
| 02/22/2000 | CA2158559C System for opening/closing circuit breakers |
| 02/17/2000 | WO2000008664A1 Pole of a circuit breaker with an integrated optical current sensor |
| 02/17/2000 | DE19837009A1 Actuator device for movable contact piece of high-voltage power switch |
| 02/16/2000 | CN2364543Y Hydraulic electromagnetic track mounted circuit breaker |
| 02/15/2000 | US6025983 Switchgear |
| 02/15/2000 | US6024896 Contacts material |
| 02/10/2000 | WO2000007202A2 Medium- and/or high-voltage circuit breaker |
| 02/09/2000 | CN2363372Y Outdoor vacuum arc-extinguishing chamber |
| 02/09/2000 | CN1244024A Electric switch plant with assembled operation mechanism haivng large pressure springs for cut-on |
| 02/08/2000 | CA2192147C High voltage switches |
| 02/03/2000 | WO2000005735A1 Actuation and control device for high- and medium-voltage circuit breakers |
| 02/03/2000 | DE19859826C1 Oil filter unit for oil-filled transformer stepping switch |
| 02/02/2000 | EP0977229A2 Switching apparatus |
| 02/02/2000 | EP0977046A1 Method and apparatus for testing the quality of the vacuum in a vacuum switch |
| 02/02/2000 | CN2362188Y Outdoor high-voltage vacuum load switch |
| 02/01/2000 | US6020567 Operation apparatus of circuit breaker |
| 01/27/2000 | WO2000004565A1 High-voltage circuit breaker with interrupter unit |
| 01/27/2000 | DE19933495A1 Electrical circuit breaker for use in automatic switching systems |
| 01/27/2000 | DE19832709A1 High voltage circuit breaker comprises a baffle system for diverting arc quenching gas along an extended path after use for increased gas cooling before reaching a housing wall |
| 01/26/2000 | EP0974993A2 Electrical switchgear with synchronous control system and actuator |
| 01/26/2000 | EP0974990A2 Insulative cover for electrical switching apparatus for electric power distribution systems |
| 01/26/2000 | EP0974152A1 Electric arc explosion chamber system |
| 01/26/2000 | EP0909453B1 Electrical circuit breakers |
| 01/26/2000 | CN2360927Y Pointer multi-point pressure control switch |
| 01/26/2000 | CN1242591A Interlock for electrical switching apparatus with stored energy closing |
| 01/26/2000 | CN1242589A Interrupter for circuit breaker |
| 01/26/2000 | CN1242588A Insulative cover for electrical switching apparatus for electric power distribution systems |
| 01/26/2000 | CN1048818C Interrupter for sub-line |
| 01/25/2000 | US6018134 Main circuit switching apparatus |
| 01/25/2000 | US6018133 Low-compression puffer circuit-breaker |
| 01/21/2000 | CA2277739A1 Insulative cover for electrical switching apparatus for electric power distribution systems |
| 01/18/2000 | US6015960 Compressed gas interrupter with a rack mechanism |
| 01/13/2000 | DE19830231A1 Stromkontaktanordnungen eines Stromschalters Current contact arrangements of a power switch |
| 01/12/2000 | EP0971383A2 Contact arrangement of a current switch |
| 01/12/2000 | EP0970554A1 Process and arrangement for selective network monitoring for switchgear |
| 01/12/2000 | EP0970498A1 Compressed gas power switch |
| 01/12/2000 | CN2358546Y Direct-sticking right-angled isolating vacuum breaker on column |
| 01/12/2000 | CN2358545Y High voltage vacuum load switch on column |
| 01/12/2000 | CN1241291A Switching device with under-voltage auxiliary release |
| 01/12/2000 | CN1241012A Electrical switchgear with synchronous control system and actuator |
| 01/11/2000 | US6013888 Generator circuit breaker having a single mechanical control mechanism |
| 01/06/2000 | WO2000000991A1 Electric railway vehicle and electric powering unit in particular for such a vehicle |
| 01/05/2000 | EP0906634B1 Contact arrangement for vacuum switch |
| 01/05/2000 | CN1240300A Intermediate or high voltage circuit breaker with driving belt close-looped around two gear wheel |
| 01/04/2000 | US6011258 Constant gas exchange with an ion-mobility spectrometer |
| 01/04/2000 | US6009615 Method of manufacturing a bistable magnetic actuator |
| 12/30/1999 | DE19814398C1 Elektrisches Schaltgerät, insbesondere elektromagnetisches Schaltgerät mit Vakuumschaltröhre Electrical switching device, in particular electromagnetic switching device with vacuum switch tube |
| 12/29/1999 | WO1999067800A1 Low voltage multipole circuit breaker with high electrodynamic resistance, whereof the pole shaft is arranged in the compartment housing the poles |
| 12/29/1999 | CN1239812A Limiter device for high voltage circuit breaker having grounded metal tank |
| 12/28/1999 | US6008456 Load switch for a step switch |
| 12/23/1999 | WO1999066522A1 Integrated unit for an air-insulated high voltage switching station |
| 12/23/1999 | DE19826202A1 Isolierendes Bauteil für Hochspannungsanlagen und Verfahren zu seiner Herstellung Insulating component for high-voltage equipment and process for its preparation |
| 12/23/1999 | DE19814397C1 Anordnung zur Schaltstellungsanzeige und Abbrandanzeige bei einem elektrischen Schaltgerät Arrangement for switch position indication and erosion indication with an electrical switching device |
| 12/22/1999 | EP0966013A1 Limiting device dead tank high voltage circuit breaker |
| 12/22/1999 | CN2355424Y A.C. contractor with arc extinction by feedback cyclic current |
| 12/22/1999 | CN2355423Y Outdoor vacuum switches with isolating knives |
| 12/22/1999 | CN1047694C Gas insulation switch appts. |
| 12/21/1999 | US6005213 Insulated type switchgear device |
| 12/21/1999 | US6004377 System for collecting and refining SF6 gas and method therefor |
| 12/16/1999 | WO1999065128A1 Insulating component for high-voltage installations and a method for the production thereof |
| 12/16/1999 | WO1999065048A1 High and medium voltage circuit breaker with double movement comprising a blower tube guided in translation |
| 12/16/1999 | DE19814433C1 Elektromagnetisches Schaltgerät mit Schaltwippe Electromagnetic switching device with switching rocker |
| 12/16/1999 | CA2334991A1 High and medium voltage circuit breaker with double movement comprising a blower tube guided in translation |
| 12/15/1999 | EP0906633B1 Switching contact system for a low voltage power switch with flexible conductors |
| 12/15/1999 | CN2354231Y Zero-arcing arc-suppression device of air breaker |
| 12/15/1999 | CN2354230Y Zero-arcing arc-suppression chamgber of plastic housing type breaker |
| 12/15/1999 | CN2354218Y Outdoor dry switch casing-pipe |
| 12/15/1999 | CN1238542A Hydraulic operation device |
| 12/15/1999 | CN1238541A Electromagnetic blowout switch with fuse and electronic circuit |
| 12/15/1999 | CN1047481C Three-phase overcurrent protection circuit |
| 12/15/1999 | CN1047463C Vacuum valve and vacuum breaker adapting it |
| 12/15/1999 | CN1047461C Device for tensioning the cut-in spring in actuator units for circuit breakers |
| 12/14/1999 | US6002560 Circuit breaker contact wear indicator |
| 12/09/1999 | DE19812503C1 Drehbetätigter Schutzschalter mit voreilendem Hilfsschalter Rotationally operated circuit breaker with leading auxiliary switch |
| 12/08/1999 | EP0962023A1 Grading ring insert assembly |
| 12/08/1999 | CN2353034Y Vacuum load switch using parallel connected mode |
| 12/08/1999 | CN1047256C 电路断路器 Circuit breaker |
| 12/07/1999 | US5997616 Moisture absorption device for electrical apparatus containing dielectric gas |
| 12/07/1999 | CA2038063C Monitoring system for step-type switching transformer |
| 12/02/1999 | DE19824269A1 Schutzschaltungsanordnung zum Auftrennen eines Gleichstromkreises Protection circuitry for separating a DC circuit |
| 12/01/1999 | EP0961380A2 Protection circuit arrangement for disconnecting a direct current circuit |
| 12/01/1999 | EP0852805B1 High power switching arrangement |
| 12/01/1999 | CN2351826Y Vacuum contactor with AC magnetic circuit structure |
| 12/01/1999 | CN2351825Y Outdoor 10KV vacuum circuit breaker |
| 12/01/1999 | CN2351824Y Outdoor vacuum circuit breaker |
| 12/01/1999 | CN1047020C Disconnecting swith |
| 11/30/1999 | CA2166663C Circuit breaker having two chambers pep pole |
| 11/25/1999 | WO1999060591A1 Actuation and control device for electric switchgear |
| 11/25/1999 | DE19813217C1 Löschspule für gasisolierte Lasttrennschalter Quenching coil for gas-insulated switch disconnectors |