| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 05/30/2001 | CN1297571A Double movement high voltage circuit breaker |
| 05/30/2001 | CN1297570A High voltage circuit breaker with switch stick made of insulating material |
| 05/30/2001 | CN1297239A Changing-over DC circuit breaker |
| 05/29/2001 | US6239514 Electric switching device and a method for performing electric disconnection of a load |
| 05/29/2001 | US6239399 Interrupter with a resistor insertion system having a long insertion time |
| 05/25/2001 | WO2001037301A1 Operating arrangement for mechanism |
| 05/25/2001 | WO2001037297A1 Circuit interrupter and operating mechanism therefor |
| 05/23/2001 | EP1102296A2 Circuit breaker |
| 05/23/2001 | EP1102295A2 Commutation type direct-current breaker |
| 05/23/2001 | EP1102288A1 Contact piece for use in an axial magnetic field of a vacuum chamber |
| 05/23/2001 | DE19963256C1 HV load switch has drive for second movable contact supplied with release signal when first driven contact reaches given position |
| 05/23/2001 | DE19955217A1 Lastschalter Circuit Breakers |
| 05/23/2001 | CN1296631A Motor operator for overhead air break electrical power distribution switches |
| 05/22/2001 | US6236562 Section of a high-voltage system having cooling means and including a conductor |
| 05/22/2001 | US6236548 Method of discriminating between an internal arc and a circuit-breaking arc in a medium or high voltage circuit breaker |
| 05/22/2001 | US6236010 Circuit interrupter including a penetrating electrical contact with grip and release structure |
| 05/17/2001 | WO2001035431A1 Switch gear |
| 05/17/2001 | DE10040297A1 Kontaktstück für Axialmagnetfeldanwendungen in einer Vakuumkammer Contact piece for Axialmagnetfeldanwendungen in a vacuum chamber |
| 05/16/2001 | EP1099232A2 Arc extinguishing aid |
| 05/16/2001 | EP0840897B1 Functional test process for a mechanical switching element |
| 05/16/2001 | CN2430779Y Start speed breaking device of vacuum breaker |
| 05/16/2001 | CN2430778Y Breaking mechanism of closing rod series separation of vacuum breaker |
| 05/16/2001 | CN2430777Y Contactor of vacuum breaker |
| 05/16/2001 | CN1065980C 真空管 Vacuum |
| 05/15/2001 | US6232571 Medium-voltage circuit-breaker and disconnector module, and a corresponding power distribution substation |
| 05/15/2001 | US6232569 Switch control device |
| 05/10/2001 | WO2001033594A1 Compressed gas-blast circuit breaker |
| 05/10/2001 | WO2001033593A1 Compact-structure three-pole apparatus for electric stations |
| 05/10/2001 | WO2001032584A1 Joining method for ceramics and metal and joined body of ceramics and metal joined by the method |
| 05/10/2001 | DE19916082C2 Pulvermetallurgisch hergestellter Verbundwerkstoff, Verfahren zu dessen Herstellung sowie dessen Verwendung The powder metallurgy composite material, method for its production and its use |
| 05/10/2001 | DE10013404C1 Gas-insulated electrical switching device has switch rod sealed in opening in hermetically-sealed housing via rubber disc provided with concentric folds facilitating switch rod movement |
| 05/09/2001 | EP1098334A1 Power plant switch with heat exchanger |
| 05/09/2001 | EP1098333A2 Controlled switching device |
| 05/09/2001 | EP1098332A2 Rapid current-limiting switch |
| 05/09/2001 | CN2429905Y Spring actuating mechanism for outdoor high voltage A.C. separate load switch |
| 05/09/2001 | CN1294399A Vacuum circuit breaker |
| 05/08/2001 | US6229109 Power circuit breaker with rack-pinion operating mechanism for movable contact |
| 05/08/2001 | CA2325723A1 Plant switch with exchanger-radiator |
| 05/08/2001 | CA2325008A1 High-speed current-limiting switch |
| 05/03/2001 | WO2001031667A1 Electromagnetic repulsion driven swich |
| 05/03/2001 | DE10022415A1 High voltage switching device has two switching units, one designed for dielectric loads and the other for short circuits or arcs |
| 05/02/2001 | CN2428850Y Multifunction insulation operation rod |
| 05/02/2001 | CN1065354C Metal-clad swithgear with vacuum switching device |
| 05/01/2001 | US6225588 Trip device of circuit breaker |
| 05/01/2001 | US6225581 Installation comprising an electrical switchgear apparatus and a cable interlock |
| 04/25/2001 | EP1093659A1 High and medium voltage circuit breaker with double movement comprising a blower tube guided in translation |
| 04/25/2001 | CN2427910Y Novel high voltage switching cabinet having breaker |
| 04/25/2001 | CN2427884Y Indoor high voltage vacuum breaker |
| 04/25/2001 | CN2427883Y DC vacuum contactor |
| 04/25/2001 | CN1065081C Gas breaker |
| 04/25/2001 | CN1065069C Puffer type gas circuit breaker |
| 04/25/2001 | CN1065068C Contact electrode for vacuum interrupter |
| 04/25/2001 | CN1065067C Gas circuit breaker |
| 04/19/2001 | WO2001027950A1 Contactor |
| 04/19/2001 | DE19949493A1 Electrical earthing switch has fixed contact engaged by pair of moving contact blades, with pre-arcing horn section to reduce duration of arcing |
| 04/18/2001 | EP1093140A2 Gas-insulated circuit breaker and gas-insulated switch-gear having the same |
| 04/18/2001 | EP1092227A1 Motor operator for overhead air break electrical power distribut ion switches |
| 04/18/2001 | EP1092226A1 Electric railway vehicle and electric powering unit in particular for such a vehicle |
| 04/18/2001 | CN1291816A Gas insulating switch device |
| 04/17/2001 | CA2227017C Insulated cap for loadbreak bushing |
| 04/12/2001 | WO2001026127A1 Vacuum contactor |
| 04/12/2001 | WO2000054295A9 Bistable magnetic drive for a switch |
| 04/12/2001 | DE19947410A1 Tieftemperaturvorrichtung Low-temperature device |
| 04/11/2001 | EP1091378A1 Self-blast circuit breaker with pressure relief valve and filling valve |
| 04/11/2001 | EP1091377A2 Vacuum exhaust element of vacuum switch |
| 04/11/2001 | EP1091182A2 Gas reclaiming equipment |
| 04/11/2001 | EP1090404A1 Mehrphasiger |
| 04/11/2001 | CN1064477C 电路断路器 Circuit breaker |
| 04/10/2001 | US6215408 Vibro-acoustic signature treatment process in high-voltage electromechanical switching system |
| 04/10/2001 | US6215263 Motor operator for over-head air break electrical power distribution switches |
| 04/10/2001 | US6215082 Load break interrupter having vented muffler assembly on arc-suppressing tube |
| 04/07/2001 | CA2322901A1 Gas insulating switchgear |
| 04/05/2001 | WO2001024211A1 High voltage circuit breaker |
| 04/05/2001 | WO2001024210A2 Drive for the pole module of a circuit breaker |
| 04/05/2001 | DE19946570A1 Vacuum chamber has isolating cylinder with at least one recess engaged by outwardly pressed burls on screen to hold screen in place |
| 04/04/2001 | EP1089031A2 Cryogenic cooling device |
| 04/04/2001 | CN2426206Y Vacuum load isolation switch |
| 04/04/2001 | CN1290020A Electric circuit breaker |
| 04/04/2001 | CN1290019A Moderate and high voltage circuit breaker with current breaking chamber with improved insulation strength |
| 04/04/2001 | CN1064176C Diaphragm sealer for high voltage switch arrangement |
| 04/04/2001 | CN1064172C Connector of terminal |
| 04/03/2001 | US6211479 Persistent current circuit switch |
| 04/01/2001 | CA2320732A1 Low-temperature apparatus |
| 03/29/2001 | WO2001022459A1 Dc circuit-breaker |
| 03/29/2001 | DE19957391C1 Power switch control has a display which is set by the operating parameters against reassertion forces with an engaged coupling which is moved into the inoperative setting when the display is at the not-ready position |
| 03/28/2001 | EP1087490A1 Electrical protection device with a sigma-delta analog-to-digital converter |
| 03/28/2001 | EP1086519A1 Insulating component for high-voltage installations and a method for the production thereof |
| 03/28/2001 | CN2425423Y PTC arc-extinguishing means |
| 03/27/2001 | US6207919 Load break interrupter having shunt circuit break actuating mechanism |
| 03/27/2001 | US6207918 Compressed gas power switch |
| 03/27/2001 | US6207917 Compressed gas power switch |
| 03/27/2001 | US6207916 Electric arc explosion chamber system |
| 03/27/2001 | US6205846 Method of determining with great accuracy the rate of leakage from the case of an electrical apparatus |
| 03/22/2001 | WO2001020627A1 Method and device for interlocking |
| 03/22/2001 | WO2000065624A3 Arc extinguishing aid |
| 03/21/2001 | EP1085532A1 Electromagnetic actuator with two return springs |
| 03/21/2001 | CN2424524Y On-off device of isolation load switch |
| 03/21/2001 | CN1288576A Vacuum interrupter chammber with a ring-shaped isolator |
| 03/21/2001 | CN1063575C Electric switching devices with blow-out channels for arc gases |
| 03/20/2001 | US6204460 Sealed contact device, a method of producing a sealed contact device, and a sealing method |