| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 03/15/2001 | WO2001018834A1 Device for measuring the internal pressure and conditioning the voltage and current of vacuum interrupters and a method therefor |
| 03/15/2001 | WO2001018832A2 Clutch assembly for electrical switching apparatus with large compression close spring |
| 03/15/2001 | WO2001018554A1 Partial discharge monitoring system for transformers |
| 03/15/2001 | DE19942971A1 Vorrichtung zur Innendruckmessung, Spannungskonditionierung und Stromkonditionierung von Vakuumschaltröhren und Verfahren hierfür Apparatus for internal pressure measurement, voltage conditioning and current conditioning of a vacuum interrupters and methods therefor |
| 03/15/2001 | CA2384591A1 Clutch assembly for electrical switching apparatus with large compression close spring |
| 03/14/2001 | CN2423651Y Permanent-magnetic vacuum circuit breaker |
| 03/14/2001 | CN2423650Y Indoor sulfur hexafluoride load switch |
| 03/14/2001 | CN2423649Y Insulation cover for indoor high-voltage sulfur hexafluoride load switch |
| 03/14/2001 | CN2423648Y Plane scroll spring energy-storage and releasing device |
| 03/14/2001 | CN1063279C Automatic arc-blowing high voltage breaker |
| 03/14/2001 | CN1063278C 开关装置 Switching device |
| 03/13/2001 | US6201204 Closure resistor assembly for high voltage electrical gear |
| 03/08/2001 | DE19939066A1 Superconducting current limiter operating method |
| 03/07/2001 | EP1080479A1 Actuation and control device for electric switchgear |
| 03/06/2001 | US6198062 Modular, high-voltage, three phase recloser assembly |
| 03/01/2001 | DE19939940A1 Druckgasschalter Gas pressure switch |
| 02/28/2001 | EP1079404A2 Gas blast switch |
| 02/28/2001 | EP1078381A1 Bistable magnetic drive for a switch |
| 02/28/2001 | CN1285605A Switch for inflating and compressing |
| 02/28/2001 | CN1285604A High-voltage circuit breaker with high-speed moved moveable contact |
| 02/28/2001 | CN1285601A Switching device |
| 02/21/2001 | CN1062378C Medium voltage switch |
| 02/15/2001 | WO2001011640A1 Switch actuator |
| 02/15/2001 | DE19948687C1 High-voltage power switch comprises a gas flow-off channel whose proportions are specified together with the maximum diameter over a part of its length |
| 02/15/2001 | DE19938422A1 Medium voltage earthing switch has gas generator for blowing insulating gas onto contact and switch-on arc |
| 02/14/2001 | EP1076349A2 Gas circuit breaker |
| 02/14/2001 | EP1075700A1 Double movement high voltage circuit breaker |
| 02/14/2001 | CN2419677Y High voltage isolate switch |
| 02/14/2001 | CN2419676Y Insulation monitor for vacuum switch |
| 02/14/2001 | CN1284202A Electrical circuit breaker |
| 02/14/2001 | CN1283861A Gas Corrent breaker |
| 02/08/2001 | WO2001009912A2 Circuit breaker |
| 02/08/2001 | DE19934383A1 Damping arrangement for vacuum switch, has piston and damping cylinder in separate damping housing, and two radial openings in damping housing wall connected to inlet valve and outlet valve inserts |
| 02/08/2001 | DE19932996A1 Flexible conductor for switch, has flexible part with alternating pattern of metal and adhesion preventing coatings applied in thickness direction, and fixed parts on both sides of flexible part |
| 02/08/2001 | DE19928080C1 Hochspannungsleistungsschalter mit einem Abströmkanal High-voltage circuit breaker having a discharge channel |
| 02/07/2001 | EP1075006A1 Drive arrangement for a medium respectively high voltage switch and method for moving of a first contact |
| 02/07/2001 | EP1074850A2 Circuit for the synthetic testing of the switch capability of high voltage switches |
| 02/07/2001 | EP1074032A1 An interrupt assembly for a primary circuit breaker |
| 02/07/2001 | CN2418580Y Switch for steeped reducing current by resistance |
| 02/07/2001 | CN2418576Y Electric operation mechansim for high-pressure load switch, isolation switch |
| 02/06/2001 | US6184483 Plug-in circuit breaker comprising an operating lever for opening and closing of poles |
| 02/01/2001 | WO2001008186A1 Contact arrangement for a vacuum interrupter |
| 02/01/2001 | DE19936147A1 Vacuum power switch or load switch, has insulating cylinder composed of two cylindrical sections with metal carrier between them carrying screen, so that carrier and screen are earthed |
| 02/01/2001 | DE10027198A1 Vacuum switch has pair of windmill wheel shaped electrodes in vacuum tube with spiral slots extending from central region to peripheral region to separate windmill wheel shaped sections |
| 01/30/2001 | US6180907 Limiter device for a high voltage circuit breaker having a grounded metal tank |
| 01/25/2001 | WO2001006528A1 Actuation and control device for electric switchgear |
| 01/25/2001 | DE19936987C1 High-voltage (HV) switch with arcing contacts and single electrode |
| 01/24/2001 | CN1281236A Improved load disconnect switch |
| 01/24/2001 | CN1281232A Operating mechanism using electric motor |
| 01/24/2001 | CN1281228A Flexible conductor and switch made of same |
| 01/24/2001 | CN1061182C Gas-insulating type load cut-off system |
| 01/24/2001 | CN1061165C Vacuum circuit breaker as well as vacuum valve and electric contact used in same |
| 01/23/2001 | US6177643 High-voltage circuit-breaker having an axially displaceable field electrode |
| 01/18/2001 | DE19933111A1 Vacuum chamber for low power switching, has sintered structure applied to inner surface of cylinder lid to form fixed contact |
| 01/17/2001 | EP1069584A1 Current limiter and circuit breaker with current-limiting function |
| 01/17/2001 | EP1069579A1 Actuation and control device for electric switchgear |
| 01/17/2001 | EP1068659A1 Encapsulating module with a three-phase switching device for a gas-insulated high-voltage switching installation |
| 01/17/2001 | EP1068625A1 Drive devices for interrupter units in power supply switching devices |
| 01/17/2001 | EP1068624A1 Encapsulating module with a three-position switch integrated into a current path for a gas-insulated switchgear installation |
| 01/17/2001 | CN2415454Y Outdoor AC high-voltage load isolating switch |
| 01/16/2001 | US6175167 High-voltage outdoor switch |
| 01/16/2001 | US6175089 Multi-position automatic switching actuator for load switch |
| 01/11/2001 | DE19930993A1 Synthetic testing the capacity of high power switches in high voltage devices has auxiliary switches and diode arrangement for switching the high current through the test switch |
| 01/10/2001 | CN2414508Y Glass vacuum arc-extinguishing chamber with outer isolation material sleeving |
| 01/09/2001 | US6172863 Phase control switching system |
| 01/09/2001 | US6172317 Foam encapsulated vacuum interrupter module removably mounted in a housing |
| 01/04/2001 | WO2001001429A2 Electrical switchgear with synchronous control system and actuator |
| 01/04/2001 | DE19929572A1 Magnetischer Linearantrieb Magnetic linear drive |
| 01/04/2001 | CA2599141A1 Electrical switchgear with synchronous control system and actuator |
| 01/03/2001 | EP1064664A1 High voltage power circuit breaker with an insulation nozzle |
| 01/03/2001 | EP1064663A1 Blow-out coil for gas-insulated load-break switches |
| 01/03/2001 | CN2413373Y Low-voltage vacuum quenching chamber |
| 01/03/2001 | CN2413372Y High-tension sulfur hexafluoride load switch |
| 01/03/2001 | CN2413371Y 放电电极 Discharge electrode |
| 01/03/2001 | CN2413370Y 放电开关 Discharge switch |
| 01/02/2001 | US6169405 Functional test process for a mechanical switching element |
| 12/28/2000 | WO2000079672A1 Magnetic linear drive |
| 12/28/2000 | WO2000079554A1 Circuit breaker with live-state information measuring instrument |
| 12/28/2000 | DE10029003A1 Vacuum interrupter with vapour shield |
| 12/28/2000 | DE10007907A1 Vakuumkammer Vacuum chamber |
| 12/27/2000 | CN2412286Y Arc-suppressing chamber combined nozzle of sulfur hexafluoride breaker |
| 12/21/2000 | WO2000077809A1 High-voltage circuit breaker with a discharge channel |
| 12/21/2000 | WO2000077808A1 High voltage power circuit breaker |
| 12/21/2000 | WO2000077807A1 Vacuum interrupter with a vapor shield |
| 12/20/2000 | EP1060548A1 Metal-enclosed, gas-insulated switchgears with containers filled with gas |
| 12/20/2000 | EP1060492A1 Apparatus and procedure for elimination of water, air and other gases from the mixture of sulfurhexafluoride (sf6) with gas |
| 12/20/2000 | EP1017142A4 Recloser-automatic switch for aerial power lines of the tel series |
| 12/19/2000 | US6163444 Circuit breaker |
| 12/19/2000 | US6163002 Vacuum circuit interrupter with contact structure including support pins |
| 12/19/2000 | US6163001 Puffer type circuit breaker with arcing chamber, auxiliary shunting contacts and exhaust structure with pressure relief valves |
| 12/14/2000 | DE19928079A1 High-voltage (HV) circuit-breaker with arc-quenching gas outflow channel |
| 12/14/2000 | DE19928078A1 High-voltage (HV) circuit-breaker with diffusor channel |
| 12/14/2000 | DE19928077A1 Hochspannungsleistungsschalter High-voltage circuit breaker |
| 12/14/2000 | DE19906157C1 HV load switch with metal-encapsulted switch chambers has current bolt of HV connection fed through respective isolators on outside and inside of encapsulation housing for contact breaker switch set |
| 12/13/2000 | EP1059651A2 Apparatus and associated method for supporting a vacuum interrupter sub-assembly during manufacture |
| 12/13/2000 | EP1059650A2 Vacuum chamber |
| 12/13/2000 | CN2410727Y 户外高压真空断路器 Outdoor high voltage vacuum circuit breaker |
| 12/13/2000 | CN1276615A Apparatus for supporting subassembly of vacuum circuit breaker during making and related method |
| 12/13/2000 | CN1276614A Medium voltage knife type load switch with vacuum arc-suppression chamber |
| 12/13/2000 | CN1276613A Vacuum valve |