| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 08/25/2004 | CN1163933C Circuit breaker |
| 08/25/2004 | CN1163922C Vacuum valve type load time-division contact switching device |
| 08/24/2004 | US6781079 Switch actuator |
| 08/19/2004 | US20040159808 Fluid pressure operating apparatus for circuit breaker |
| 08/19/2004 | US20040159635 Enclosed switchgear |
| 08/18/2004 | CN1521789A Fluid pressure operating apparatus for circuit breaker |
| 08/18/2004 | CN1162884C Actuator of power load-break switch |
| 08/17/2004 | US6777948 Method and apparatus for detecting wear in components of high voltage electrical equipment |
| 08/17/2004 | US6777636 Low-voltage power switch with a bearing arrangement for a switch shaft |
| 08/17/2004 | CA2272200C Modular, high-voltage, three phase recloser assembly |
| 08/17/2004 | CA2184829C Sealed relay device |
| 08/12/2004 | US20040155014 High voltage operating rod sensor and method of making the same |
| 08/12/2004 | DE10305464A1 Switching system for interrupting electric current, especially in medium voltage range, has field control elements of ferromagnetic material for shielding parasitic magnetic fields |
| 08/12/2004 | DE10305169A1 Anordnung mit einer Vakuumschaltröhre Arrangement with a vacuum interrupter |
| 08/12/2004 | DE102004001071A1 Gekapselte Schaltanlage Enclosed Switchgear |
| 08/11/2004 | EP1444713A1 Power switch |
| 08/11/2004 | CN2632835Y Vacuum circuit breaker |
| 08/11/2004 | CN2632834Y Vacuum circuit breaker on outdoor lamppost |
| 08/11/2004 | CN2632833Y Vacuum assistant switch |
| 08/11/2004 | CN1161868C Air isolating switch device |
| 08/11/2004 | CN1161809C Multi-position automatic switching actuator for load switch |
| 08/10/2004 | US6774639 Partial discharge monitoring system for transformers |
| 08/05/2004 | WO2004027804A3 Monitoring system for high-voltage switchboards |
| 08/05/2004 | US20040150932 Method for operating a switch with a connectable current limiter and corresponding arrangement |
| 08/04/2004 | EP1443537A1 Arrangement with a vacuum switch tube |
| 08/04/2004 | CN2631027Y Outdoor high-voltage vacuum circuit breaker |
| 08/04/2004 | CN2631026Y Outdoor high-voltage vacuum load switch |
| 08/04/2004 | CN2631021Y Bistable permanent-magnet mechanism |
| 08/04/2004 | CN1518031A 断路器 Breaker |
| 08/04/2004 | CN1518029A Closed switching device |
| 08/04/2004 | CN1518028A Electrode for vacuum valve and vacuum valve, vacuum circuit breaker using the electrode |
| 08/04/2004 | CN1518021A Hydraulic operation device for switching device |
| 08/04/2004 | CN1160843C Metal-enclosed, gas-insulated switchgear assembly |
| 08/04/2004 | CN1160754C Medium voltage knife type load switch with vacuum arc-suppression chamber |
| 08/04/2004 | CN1160753C Vacuum type swich gear device having L-shaped stationary and movable conductors arragement |
| 08/04/2004 | CN1160752C Contact material for vaccum electron tube |
| 08/04/2004 | CN1160751C Termianl structure for vacuum circuit breaker |
| 08/04/2004 | CN1160749C Open-air high-voltage circuit breaker |
| 08/03/2004 | US6770832 Vacuum electrical interrupter with pull-to-close mechanism |
| 08/03/2004 | CA2100281C Solid state circuit breaker |
| 07/29/2004 | US20040144757 Electrical circuit interrupting device |
| 07/29/2004 | US20040144756 Electrical circuit interrupting device |
| 07/29/2004 | US20040144629 Latching mechanism for locking a spring energy store |
| 07/29/2004 | DE10243825B4 Leistungsschalter mit schwenkbarem Schaltmesser Circuit breaker with swivel switch blade |
| 07/28/2004 | CN2629194Y Electric operating mechanism for electric switch |
| 07/28/2004 | CN2628730Y Mine vacuum switch |
| 07/28/2004 | CN1159741C Vacuum insulated switching apparatus |
| 07/27/2004 | US6768977 Method and circuit for modeling a voice coil actuator of a mass data storage device |
| 07/22/2004 | WO2004061884A1 Insulating material piece for an electrical high voltage device and method for production thereof |
| 07/22/2004 | US20040141271 Electrode for vacuum interrupter, vacuum interrupter using the same and vaccum circuit-breaker |
| 07/22/2004 | DE19902500B4 Verfahren zum Herstellen einer Kontaktanordnung für eine Vakuumschaltröhre A method for manufacturing a contact arrangement for a vacuum switch tube |
| 07/22/2004 | DE10260258A1 Verfahren und Vorrichtung zur Bestimmung der Restlebensdauer eines Schaltgerätes Method and apparatus for determining the remaining service life of a switching device |
| 07/21/2004 | CN2627639Y Remote operating device for switching on/off of vacuum circuit breaker |
| 07/21/2004 | CN2627638Y Outdoor high-voltage isolating switch |
| 07/21/2004 | CN2627632Y Low-voltage electromagnetism operating permanent-magnet keeping drive mechanism |
| 07/21/2004 | CN1515054A Single phase or polyphase switchgear in enveloping housing |
| 07/21/2004 | CN1158686C Electrical switch |
| 07/20/2004 | US6765168 Electrode of vacuum circuit breaker, and method of producing electrode of vacuum circuit breaker |
| 07/20/2004 | US6765167 Electric contact member and production method thereof |
| 07/15/2004 | DE202004007509U1 High voltage (HV) installation with direct voltage (DC) generator and capacitor battery, interconnected by circuit breaker, whose one side is carried by DC generator |
| 07/15/2004 | DE19952719B4 Isolator für eine Hochspannungsschaltanlage Insulator for a high-voltage switchgear |
| 07/15/2004 | DE10261846A1 Isolierstoffteil für ein elektrisches Hochspannungsgerät sowie Verfahren zu seiner Herstellung Insulating material for an electric high-voltage apparatus, and method for its preparation |
| 07/15/2004 | DE10261811A1 Elektromagnetischer Antrieb Electromagnetic actuator |
| 07/14/2004 | EP1437751A1 Electrode for vacuum interrupter, vacuum interrupter using the same and vacuum circuit-breaker |
| 07/14/2004 | CN2626038Y Dual coil bistable permanent magnet operation mechanism |
| 07/14/2004 | CN2626037Y Composite spiral groove contact for grooved end-ring of high-voltage vacuum circuit breaker |
| 07/14/2004 | CN2626036Y Improved structure of vacuum load switch |
| 07/14/2004 | CN2626035Y Monostable permanent-magnetic operating mechanism having manual gate-disbranch magnetic short circuit ring equipment |
| 07/14/2004 | CN2626034Y Permanent-magnetic operating mechanism for coaxial sliding switch |
| 07/13/2004 | US6762388 Vacuum cartridge for an electrical protection apparatus such as a switch or circuit breaker |
| 07/13/2004 | US6762387 Gas-insulated switch |
| 07/13/2004 | US6762385 Arc extinguishing device with a high speed whip |
| 07/08/2004 | WO2004057637A1 Electromagnetic actuator |
| 07/08/2004 | WO2004057635A1 Method and device for determining the remaining service life of a switchgear |
| 07/08/2004 | US20040130858 Single phase or polyphase switchgear in an enveloping housing |
| 07/08/2004 | US20040129681 Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker |
| 07/08/2004 | US20040129546 Travelling mechanism for a withdrawable circuit-breaker |
| 07/07/2004 | CN2624377Y Vacuum automatic circuit recloser |
| 07/07/2004 | CN2624376Y Static pressure device for contact of vacuum explosion chamber of high-voltage circuit-breaker |
| 07/07/2004 | CN2624375Y A high voltage vacuum breaker pedestal |
| 07/07/2004 | CN2624374Y A high voltage vacuum breaker mounting plate |
| 07/07/2004 | CN1156865C Electric circuit breaker |
| 07/07/2004 | CN1156863C Method for manufacturing contact of integrated power switch |
| 07/06/2004 | US6760206 Current sensor supporting structure |
| 07/06/2004 | US6759617 Vacuum circuit breaker |
| 07/06/2004 | US6759616 Gas insulated switchgear |
| 07/01/2004 | WO2004055850A1 Gas insulation opening/closing apparatus |
| 07/01/2004 | US20040124179 Contact for vacuum interrupter, and vacuum interrupter using same |
| 07/01/2004 | US20040124178 Method for opening the contact gap of a vacuum interrupter |
| 07/01/2004 | US20040123993 System and method for gas recycling incorporating gas-insulated electric device |
| 06/30/2004 | CN2622841Y Touchable vacuum breaker |
| 06/30/2004 | CN1509485A Vacuum circuit breaker with coaxial coil for generating axial magnetic field in vicinity of the contact members of the circuit breaker |
| 06/30/2004 | CN1509484A Method and apparatus for operasting switch with a connectable currunt limiter |
| 06/30/2004 | CN1155975C Vacuum arc-extinguishing chamber of 66KV and over voltage |
| 06/29/2004 | CA2357453C Arc extinguishing device with a high speed whip |
| 06/24/2004 | WO2004053911A1 Air circuit breaker |
| 06/24/2004 | US20040118815 Vacuum electrical interrupter with pull-to-close mechanism |
| 06/24/2004 | DE10347452A1 Aktuator, Verfahren zur Herstellung des Aktuators und Leistungsschalter, der mit dem Aktuator ausgestattet ist Actuator, the actuator and method of manufacturing the circuit breaker which is equipped with the actuator |
| 06/24/2004 | DE10118746B4 Verfahren zum Betreiben eines Schaltgerätes mit einem zuschaltbaren Strombegrenzer und zugehörige Anordnung A method of operating a switching device with a switchable current limiter and associated arrangement |
| 06/23/2004 | EP1430490A1 Electromagnetic actuator |