| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 09/22/1998 | US5811749 Electrical switching device with blow-out channels for arc gases |
| 09/17/1998 | DE19727850C1 HV circuit breaker with two opposed-drive arc contact pieces |
| 09/16/1998 | EP0865057A2 Vacuum switching device |
| 09/16/1998 | EP0865056A2 Device to improve the insulating gas exchange in a high tension circuit breaker |
| 09/16/1998 | EP0812462B1 Stored-energy mechanism for a high-voltage circuit-breaker pole filled with an insulating gas |
| 09/16/1998 | CN1193176A Insulation-type switch device |
| 09/15/1998 | US5808258 Encapsulated high voltage vacuum switches |
| 09/15/1998 | US5808257 High-voltage gas-blast circuit-breaker |
| 09/10/1998 | DE19709089A1 Permanent magnet drive for switch esp. vacuum circuit breaker |
| 09/10/1998 | DE19707794A1 Contact system for vacuum switching chamber |
| 09/09/1998 | EP0863526A2 Insulated type switchgear device |
| 09/09/1998 | EP0863521A2 Contacts material |
| 09/09/1998 | CN2290918Y 高压真空负荷开关 High-voltage vacuum load switch |
| 09/09/1998 | CN1192573A Contacting material for vacuum switch |
| 09/08/1998 | US5804788 Cylindrical coil and contact support for vacuum interrupter |
| 09/08/1998 | US5804787 Gas circuit breaker and liquid pressure-driving system to be used therefor |
| 09/03/1998 | DE19724759C1 High voltage power switch |
| 09/03/1998 | DE19715313C1 HV circuit-breaker with gas-blast arc extinction |
| 09/03/1998 | DE19707793A1 Contact arrangement for vacuum circuit breaker |
| 09/03/1998 | DE19707778A1 Contact arrangement for vacuum circuit breaker |
| 09/01/1998 | US5801461 Device for monitoring the operation safety of power switches |
| 08/26/1998 | EP0815572B1 On-load tap changer of a step switch |
| 08/19/1998 | CN2288499Y Operation mechanism for indoor high-voltage switch |
| 08/19/1998 | CN2288498Y Electromagnet for controlling switch |
| 08/19/1998 | CN2288497Y Electromagnet for controlling switch |
| 08/19/1998 | CN1191020A Functional test process for a mechanical switching element |
| 08/13/1998 | WO1998035419A1 Circuit breaker for disconnecting an electrical apparatus from electrical network |
| 08/13/1998 | WO1998035372A1 Modular accessory mechanical lockout mechanism |
| 08/13/1998 | DE19705158A1 Electrical vacuum switching chamber |
| 08/12/1998 | CN1190487A Control method and device for switchgear actuator |
| 08/11/1998 | US5793597 Puffer type gas breaker |
| 08/11/1998 | US5793594 Predictive control circuit and method for circuit interrupter |
| 08/11/1998 | US5793586 Hybrid high direct current circuit interrupter |
| 08/11/1998 | US5793008 Vacuum interrupter with arc diffusing contact design |
| 08/06/1998 | WO1998034260A1 Switching device with under-voltage auxiliary release |
| 08/06/1998 | DE19806329A1 High voltage vacuum switch |
| 08/06/1998 | DE19806328A1 High-voltage vacuum switch |
| 08/06/1998 | DE19806326A1 High voltage vacuum switch |
| 07/23/1998 | WO1998032142A1 High-voltage power switch with an axially displaceable field electrode |
| 07/23/1998 | DE19702094A1 Circuit breaker |
| 07/23/1998 | DE19701827A1 Generator switch of 50 kA rating |
| 07/22/1998 | EP0854488A2 Device for actuating opening/closing commands for a high-voltage circuit breaker |
| 07/21/1998 | US5784243 Industrial-rated circuit breaker for high level overcurrent protection |
| 07/21/1998 | US5783791 Gas insulated interrupter |
| 07/15/1998 | EP0852805A1 High power switching arrangement |
| 07/15/1998 | EP0734580B1 High-voltage power switch with a field electrode |
| 07/14/1998 | US5780799 Reduced autocompression circuit-breaker |
| 07/08/1998 | EP0852386A1 Electric circuit breaker with bellow |
| 07/07/1998 | US5777287 Axial magnetic field coil for vacuum interrupter |
| 07/01/1998 | EP0850486A1 Electrical switch |
| 07/01/1998 | EP0764337B1 Drive arrangement for vacuum power circuit breakers, in particular in a tri-polar configuration |
| 07/01/1998 | EP0756751B1 Bearing arrangement for a switch shaft |
| 07/01/1998 | EP0756750B1 Lever arrangement to transmit a driving force |
| 07/01/1998 | EP0756749B1 Tensioner for a spring-loading device |
| 07/01/1998 | EP0755564B1 Device for tensioning the cut-in spring in actuator units for circuit breakers, in particular vacuum circuit breakers |
| 07/01/1998 | CN2285510Y High-tension vacuum arc-extinguishing chamber |
| 07/01/1998 | CN1186319A Power switch |
| 07/01/1998 | CN1186318A Method for electroslag casting contact material of vacuum switch of copper-chromium alloy |
| 06/25/1998 | WO1998027564A1 Zero current circuit interruption |
| 06/24/1998 | EP0849751A2 Improved axial magnetic field coil for vacuum interrupter |
| 06/24/1998 | CN2285001Y Combined pole vacuum circuit breaker |
| 06/24/1998 | CN1185644A Improved axial magnetic-field coil for vacuum circuit breaker |
| 06/23/1998 | US5771145 Zero current circuit interruption |
| 06/23/1998 | US5770828 Power circuit-breaker |
| 06/23/1998 | US5770827 Circuit breaker magnetic blowout arc extinguishing device with arc runner features |
| 06/18/1998 | WO1998026442A1 Low pressure gas discharge switch |
| 06/18/1998 | WO1998026437A1 Interlock arrangement for stationary mounted circuit breakers |
| 06/17/1998 | EP0847587A1 Power circuit-breaker with current transformers and data store |
| 06/17/1998 | EP0847586A1 High voltage hybrid circuit-breaker |
| 06/17/1998 | CN2284445Y Multifunctional mini circuit break |
| 06/16/1998 | US5767471 For high-voltage applications |
| 06/16/1998 | US5767451 Insulating support for vacuum switch tubes |
| 06/10/1998 | DE19719039C1 Heavy-duty disconnector i.e. generator-circuit breaker based on vacuum interrupters |
| 06/10/1998 | DE19711991C1 High-voltage arc-quench circuit breaker |
| 06/10/1998 | DE19711123C1 HV switch design for improved insulation gas exchange |
| 06/10/1998 | CN2283920Y Outdoor high-tenison vacuum isolation load switch |
| 06/10/1998 | CN1184551A Insulating component for high-voltage equipment |
| 06/10/1998 | CN1184322A Bent-arm two-stage longitudinal magnetic-field electrode for vacuum blowout chamber |
| 06/09/1998 | US5764459 DC circuit breaking spark suppressor device |
| 06/09/1998 | US5764129 Ceramic resistor, production method thereof, neutral grounding resistor and circuit breaker |
| 06/09/1998 | US5763848 Electrode for vacuum circuit breaker |
| 06/09/1998 | US5763844 Interlock arrangement for stationary mounted circuit breakers |
| 06/09/1998 | CA2068142C Gas isolated disconnecting switch and gas isolated switching device |
| 06/03/1998 | EP0845796A1 Circuit breaker with semi mobile piston |
| 06/03/1998 | EP0789925B1 Power switch mutually locking arrangement |
| 06/03/1998 | EP0789924B1 Evaluation apparatus for a power switch mutually locking system |
| 06/03/1998 | CN1183850A Vacuum interrupter |
| 06/03/1998 | CN1183624A Electrical switching device |
| 06/02/1998 | US5760358 Hydraulic device for operating a drive piston for a moving component |
| 05/28/1998 | DE19707320C1 HV circuit breaker with excess pressure relief device |
| 05/28/1998 | CA2220479A1 Circuit breaker with semi-mobile piston |
| 05/27/1998 | EP0844637A2 Electrodynamic actuator, in particular for high voltage circuit breaker |
| 05/27/1998 | EP0844631A2 Electrical switchgear |
| 05/27/1998 | EP0843882A1 Power switch equipped with a locking device |
| 05/27/1998 | CN1182950A Electric power breaker |
| 05/27/1998 | CN1182949A Vacuum circuit breaker with electric arc diffusion contact |
| 05/26/1998 | US5756952 Straight spring operating mechanism for high-voltage circuit-breakers |
| 05/20/1998 | EP0843395A2 Housing for gasinsulated, metalclad switchgear |
| 05/20/1998 | EP0843330A2 Disconnector-fitted vacuum breaker |
| 05/20/1998 | EP0842522A1 Method of monitoring the quality of filler gases, in particular sulphur hexafluoride, in gas-filled installations |