| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/19/2002 | CN1354490A Holding force regulating device for permanent magnet operation mechanism |
| 06/19/2002 | CN1354488A Contact area for power switch |
| 06/19/2002 | CN1354487A Breaker operating device for switch |
| 06/18/2002 | US6407908 Gas-insulated circuit breaker and gas-insulated switch-gear having the same |
| 06/18/2002 | CA2264608C Vertical antitracking skirts |
| 06/18/2002 | CA2039796C Actuator-accessory reset arrangement for molded case circuit interrupter or electric switch |
| 06/13/2002 | WO2001024210A8 Drive for the pole module of a circuit breaker |
| 06/13/2002 | DE10159350A1 Vakuum-Stromkreisunterbrecher A vacuum circuit breaker |
| 06/13/2002 | DE10030670C2 Vakuumschaltröhre mit zwei Kontaktsystemen Vacuum interrupter with two contact systems |
| 06/12/2002 | EP1213735A2 Metal-ceramic composite and vacuum switch unit using the same |
| 06/12/2002 | EP1213734A2 Combined type fluid pressure driving apparatus |
| 06/12/2002 | EP1212768A1 Device for measuring the internal pressure and conditioning the voltage and current of vacuum interrupters and a method therefor |
| 06/12/2002 | EP1212767A1 Method and device for interlocking |
| 06/12/2002 | CN1353437A Gas insulation open-close device |
| 06/12/2002 | CN1086246C Terminal connecting apparatus for vacuum circuit breaker |
| 06/12/2002 | CN1086245C Accumulating mechanism of switching gear |
| 06/06/2002 | WO2001001429A9 Electrical switchgear with synchronous control system and actuator |
| 06/06/2002 | US20020068004 Method of controlling the microstructures of Cu-Cr-based contact materials for vacuum interrupters and contact materials manufactured by the method |
| 06/06/2002 | US20020067230 Vacuum circuit breaker |
| 06/06/2002 | US20020066719 Combined type fluid pressure driving apparatus |
| 06/05/2002 | EP1211771A1 Gas-filled switching apparatus |
| 06/05/2002 | EP1211706A1 High tension switchgear with double mouvement |
| 06/05/2002 | EP1211705A2 Metal-ceramic composite and vacuum switch unit using the same |
| 06/05/2002 | EP1131833B1 Switchgear with switching devices, especially vacuum circuit breakers |
| 06/05/2002 | EP0970498B1 Compressed gas power switch |
| 06/05/2002 | CN2494556Y Integrated multipolar longitudinal magnetic field power switch contact |
| 06/04/2002 | US6400244 Control apparatus for electrical switchgear |
| 05/30/2002 | WO2002043209A1 Device for earthing a switching device arranged in a module frame in a displaceable manner |
| 05/30/2002 | WO2001071747A3 System and method for acoustic integrity monitoring |
| 05/30/2002 | US20020063111 Gas-filled switching apparatus |
| 05/29/2002 | DE10146929A1 Trennschalter mit Lichtbogen Löschungsfunktion Switch with arc extinguishing function |
| 05/29/2002 | DE10055416A1 Extinguishing light arc between two electrodes involves combination of spark movement by magnetic field and gas releasing plastic; spark is extinguished in electrode region containing plastic |
| 05/29/2002 | CN2494067Y Vacuum idle automatic compensator |
| 05/29/2002 | CN2494028Y Transition arc-extinguisher |
| 05/29/2002 | CN1351754A Vacuum interrupter with a vapor shield |
| 05/29/2002 | CN1351398A Air isolating switch device |
| 05/29/2002 | CN1351361A Circuit breaker with mixed arc eliminator |
| 05/29/2002 | CN1085902C Screened medium-voltage substation |
| 05/29/2002 | CN1085883C Vacuum interrupter with single internal assembly for generating axial magnetic field |
| 05/23/2002 | US20020060204 Gas-insulated switching apparatus |
| 05/23/2002 | US20020060203 Contact zone for a power breaker |
| 05/22/2002 | EP1207603A2 Gas-insulated switching apparatus |
| 05/22/2002 | EP1207602A2 Gas-insulated switchgear |
| 05/22/2002 | EP1207544A1 Contact area for a circuit breaker |
| 05/22/2002 | EP1040496B1 Electrical circuit breaker |
| 05/22/2002 | CN2492936Y Oil immersed poewr controller |
| 05/22/2002 | CN1350693A On/off control device and circuit breaker fitted with said device |
| 05/22/2002 | CN1350692A Contact assembly on a preselector |
| 05/22/2002 | CN1085399C Compressed gas power switch |
| 05/22/2002 | CN1085398C Control method and device for switchgear actuator |
| 05/21/2002 | US6392858 Electronic trip device with phase reconstitution and a circuit breaker comprising such a trip device |
| 05/21/2002 | US6392181 ARC extinguishing device with a high speed whip |
| 05/21/2002 | US6392157 Device for bus coupling between enclosed switchboards with insulating gas sealed therein |
| 05/21/2002 | CA2247096C Arc-resistant enclosure employing arc-quenching contact disconnect |
| 05/16/2002 | WO2002039557A1 Device for receiving interrupters of circuit breaker systems |
| 05/16/2002 | WO2001097241A3 Circuit breaker actuator |
| 05/16/2002 | DE10054554A1 Multi-phase HV load switch has offset contact operation of interrupters used for preventing overvoltages |
| 05/15/2002 | CN1349236A Vacuum breaker used for vacuum switch |
| 05/15/2002 | CN1349235A Switch device |
| 05/15/2002 | CN1084921C Terminal connection locking device for vacuum braker |
| 05/14/2002 | US6388222 High voltage circuit breaker having a switch rod made of an insulating material |
| 05/09/2002 | US20020054474 Gas-insulated switchgear |
| 05/09/2002 | US20020053963 Power circuit breaker with an actuating shaft |
| 05/09/2002 | US20020053554 Circuit breaker for disconnecting an electrical apparatus from electrical network |
| 05/08/2002 | CN1348241A Gas insulating switch apparatus |
| 05/02/2002 | WO2002035567A1 Isolating nozzle for arc blow circuit breaker |
| 05/02/2002 | WO2001096827A3 Internal fault indicator for power electrical devices |
| 05/02/2002 | US20020051336 Gas-insulated switchgear |
| 05/02/2002 | US20020050485 Vacuum valve |
| 05/02/2002 | US20020050484 Limited restrike electric power circuit interrupter suitable for use as a line capacitor and load switch |
| 05/02/2002 | EP1202417A2 Gas-insulated switchgear |
| 05/02/2002 | EP1202312A2 Vacuum switch container, vacuum switch, method of producing vacuum switch container and method of producing vacuum switch |
| 05/02/2002 | DE10128616A1 Schaltvorrichtung Switching device |
| 05/02/2002 | DE10128502A1 Schaltvorrichtung Switching device |
| 05/02/2002 | DE10050138A1 Vacuum circuit breaker drive system includes moving bearing outside turning region of bell crank, which is equipped to carry out auxiliary operations |
| 05/01/2002 | CN2489457Y Vacuum tube inverse mounted cam switching mechanism |
| 05/01/2002 | CN2489456Y Small vacuum arc extingisher case |
| 05/01/2002 | CN2489455Y Double layer switch equipment and double bus switch equipment |
| 05/01/2002 | CN2489454Y Fixed-point position-limiting energy-storage releasing mechanism |
| 05/01/2002 | CN1084039C Insulation-type switch device |
| 05/01/2002 | CN1084038C Improved axial magnetic-field coil for vacuum circuit breaker |
| 05/01/2002 | CN1084036C High-voltage breaker with closed resistance |
| 04/30/2002 | US6380504 Polyphase high voltage switch with operating mechanism including time delay |
| 04/25/2002 | US20020047548 Switching system using laser induced discharge |
| 04/25/2002 | DE10128617A1 Schaltvorrichtung Switching device |
| 04/24/2002 | EP1198812A1 Contact arrangement for a vacuum interrupter |
| 04/24/2002 | CN2488166Y Low-voltage vacuum circuit breaker with permanent magnetic operating mechanism |
| 04/24/2002 | CN2488165Y Vacuum circuit breaker |
| 04/24/2002 | CN2488164Y ZW 11-12/2000-31.5 outdoor ac high-voltage vacuum circuit breaker |
| 04/24/2002 | CN2488163Y Integrated adhesive filling mould for vacuum switch tube |
| 04/24/2002 | CN1346501A Vacuum switching device |
| 04/24/2002 | CN1083625C Gas insualting switching device |
| 04/23/2002 | US6376791 Vacuum valve |
| 04/18/2002 | US20020044403 Switching apparatus |
| 04/18/2002 | US20020044036 Switching device |
| 04/18/2002 | US20020043517 Switching apparatus |
| 04/18/2002 | US20020043516 Vacuum switch and vacuum switchgear using the same |
| 04/18/2002 | US20020043515 Vacuum switch and vacuum switchgear using the same |
| 04/18/2002 | US20020043514 Vacuum interrupter for vacuum breaker |
| 04/17/2002 | EP1196934A1 Electric switching device |