| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/29/1999 | CA2166225C Circuit breaker and circuit breaking apparatus |
| 06/24/1999 | WO1999031736A1 A device and a method for switching |
| 06/24/1999 | WO1999031694A1 A switching apparatus and a switching method |
| 06/24/1999 | WO1999031693A1 An electric switching device and a method for performing electric disconnection of a load |
| 06/23/1999 | EP0924827A1 Gas-insulated, medium voltage switchgear cell with increased dielectric strength |
| 06/23/1999 | EP0924729A2 Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization |
| 06/23/1999 | EP0924728A2 High-voltage circuit breaker for high currents |
| 06/23/1999 | CN2325867Y Outdoor high voltage loading insulation switch |
| 06/23/1999 | CN2325866Y Coil double layer flame-proof mechanism for instrument |
| 06/23/1999 | CN2325865Y Energy storage means for vacuum circuit breaker |
| 06/23/1999 | CN1220511A 开关装置 Switching device |
| 06/17/1999 | DE19751648A1 Mid range voltage electrical circuit breaker |
| 06/16/1999 | EP0923185A1 Electrical interruption device with a communication module |
| 06/16/1999 | CN2324626Y Solid-state arc-extinguishing auxiliary contactor |
| 06/16/1999 | CN1219793A Electrical interruption device comprising communication module |
| 06/15/1999 | US5912604 Molded pole automatic circuit recloser with bistable electromagnetic actuator |
| 06/10/1999 | DE19833484A1 Vacuum chamber for switch apparatus |
| 06/09/1999 | EP0921549A1 Method for extinguishing an arc in a power circuit-breaker by means of a gas stream, and power circuit-breaker |
| 06/09/1999 | EP0921548A1 Interlocking control for a circuit breaker and a load break switch |
| 06/09/1999 | EP0920705A1 Load interrupter switch |
| 06/09/1999 | CN1218968A Arc suppressing method of low voltage breaker and arc-free breaker |
| 06/08/1999 | US5910775 Phasing and indicator arrangements for switchgear or the like |
| 06/08/1999 | CA2253767A1 Circuit breaker and disconnector interlock control |
| 06/02/1999 | CN1043547C Hybrid circuit breaker with axial blowout coil |
| 05/27/1999 | WO1999026328A1 Arcing fault protection system for a switchgear enclosure |
| 05/27/1999 | WO1999012176A3 High voltage circuit-breaker with a counter-contact which can be actuated |
| 05/27/1999 | DE19758359C1 Monitoring device for switching rod in high voltage power switch |
| 05/27/1999 | DE19753177A1 Drive arrangement for circuit-breaker installation of air-insulated medium-voltage switchgear |
| 05/26/1999 | EP0917752A1 Power switch installation with disconnecting functions |
| 05/26/1999 | EP0917721A1 Sf6 gas-insulated switch installation for electricity distribution supply networks |
| 05/26/1999 | EP0782759B1 Operating device for circuit breakers |
| 05/26/1999 | CN1217557A Steam cover for vacuum switch tube |
| 05/19/1999 | EP0917171A2 Vacuum circuit-breaker, vacuum bulb for use therein, and electrodes thereof |
| 05/19/1999 | EP0917168A1 Spring motor driving mechanism for a switching device, in particular for a circuit breaker |
| 05/19/1999 | CN2319914Y 真空断路器 Vacuum Circuit Breaker |
| 05/18/1999 | US5905243 Power breaker |
| 05/18/1999 | US5905242 High voltage hybrid circuit-breaker |
| 05/13/1999 | CA2251271A1 A spring-loaded drive mechanism for a switching device, more specifically a circuit breaker |
| 05/12/1999 | CN2318705Y Vacuum load switch-fuse combined electrical equipment |
| 05/12/1999 | CN1043386C A high tension circuit breaker capable of interrupting fault currents having a delayed zero crossing |
| 05/12/1999 | CN1043385C Vacuum interrupter and method for manufacturing the same |
| 05/12/1999 | CN1043341C Process for producing a gastight soldered joint and use of the process in the production of components with a vacuum-tight casing |
| 05/11/1999 | US5903157 Measuring system for enclosed high-voltage switchgear |
| 05/11/1999 | US5902980 Insulating component for high-voltage equipment |
| 05/11/1999 | US5902978 Power breaker |
| 05/11/1999 | US5901838 Force storing mechanism |
| 05/06/1999 | WO1999021671A1 Method for producing a sheet mould for vacuum chamber screens |
| 05/06/1999 | EP0913845A1 Generator circuit breaker with a single mechanical control |
| 05/06/1999 | DE19747840A1 HV circuit breaker with tulip-shaped contact tip |
| 05/05/1999 | CN2317543Y Outdoor load isolating switch on column |
| 05/05/1999 | CN1216146A Modular accessory mechanical lockout mechanism |
| 04/29/1999 | DE19808083C1 Vacuum switch arrangement |
| 04/29/1999 | DE19747242A1 Vacuum chamber screen sheet mold making process |
| 04/28/1999 | EP0911848A2 Medium- and high-voltage gas-insulated circuit breaker with arc quenching means |
| 04/28/1999 | EP0911847A1 Vapor shield for vacuum interrupters |
| 04/28/1999 | EP0911846A1 Method for high precision determination of a leak rate in an encapsulated electrical apparatus |
| 04/28/1999 | EP0911845A1 Density sensor to monitor the leak rate in the casing of an electrical apparatus with an improved reliability |
| 04/28/1999 | EP0910860A1 Compressed gas power switch |
| 04/28/1999 | CN2316719Y Low-voltage vacuum circuit breaker |
| 04/28/1999 | CN2316718Y Magnetizing type electrical apparatus release for circuit breaker |
| 04/28/1999 | CN1215219A Medium- and high-voltage gas-insulated circuit breaker with arc quenching means |
| 04/27/1999 | US5898151 Circuit-breaker with a disconnector |
| 04/27/1999 | US5898150 Gas-blast high-voltage circuit-breaker |
| 04/27/1999 | US5898149 Power circuit-breaker |
| 04/27/1999 | CA2133330C Electric high-tension circuit breaker |
| 04/23/1999 | CA2250338A1 Density sensor for monitoring the rate of leakage of the skin of an electrical apparatus with improved reliability |
| 04/23/1999 | CA2250335A1 Process for determining with high accuracy the rate of leakage through the skin of an electrical apparatus |
| 04/22/1999 | DE19753031C1 Manufacturing method esp. for vacuum interrupters |
| 04/22/1999 | DE19746316A1 Axial magnetic field contact piece for a vacuum chamber |
| 04/21/1999 | EP0909453A1 Electrical circuit breakers |
| 04/21/1999 | EP0847586B1 High voltage hybrid circuit-breaker |
| 04/21/1999 | CN1214525A Bellows and vacuum switch using the bellows |
| 04/21/1999 | CN1043099C Gas insulating switch gearing |
| 04/20/1999 | US5895898 Device for mutually locking the actuation of at least two power switches |
| 04/15/1999 | WO1999018591A1 Vacuum switchgear |
| 04/15/1999 | WO1999000809A3 Low-voltage power switch with an actuating shaft |
| 04/15/1999 | DE19745550A1 Gas-blast circuit-breaker arrangement |
| 04/14/1999 | EP0830699A4 Control method and device for a switchgear actuator |
| 04/14/1999 | CN2314463Y Arc breaking assembly |
| 04/14/1999 | CN2314462Y 户外真空负荷开关 Outdoor vacuum load switch |
| 04/08/1999 | WO1999017412A1 Switch gear |
| 04/08/1999 | WO1999017320A1 Current-limiting contact system with a selective action |
| 04/08/1999 | DE19743468A1 Strombegrenzendes Kontaktsystem mit selektiver Wirkung Current-limiting contact system with selective action |
| 04/07/1999 | EP0907195A1 Gas blast switch with rack and pinion gear |
| 04/07/1999 | EP0907192A2 Tap changer |
| 04/07/1999 | EP0906634A1 Contact arrangement for vacuum switch |
| 04/07/1999 | EP0906633A1 Switching contact system for a low voltage power switch with flexible conductors |
| 04/07/1999 | CN2313282Y Arc-suppression chamber probe of vacuum switch |
| 04/07/1999 | CN2313281Y Spring-operation device for switch |
| 04/07/1999 | CN1213151A Electrical equipment such as control device of primary cut-out |
| 04/06/1999 | US5892301 Mechanical AND-member for mutually locking power switches |
| 04/02/1999 | CA2245994A1 Compressed gas switch with rack and pinion gearset |
| 03/31/1999 | EP0905732A2 Auxiliary contact device for connection to power factor correction contactors |
| 03/31/1999 | EP0905731A2 Bellows and vacuum switch using the bellows |
| 03/31/1999 | EP0905730A1 Control device for electrical apparatus, for instance a high tension circuit breaker |
| 03/31/1999 | EP0905726A2 Vacuum circuit breaker, vacuum bulb and electrode assembly used therefor |
| 03/31/1999 | EP0803141B1 Arrangement of coupler bays in sealed medium voltage switching systems |
| 03/31/1999 | EP0795219B1 Electric switching device |
| 03/31/1999 | CN1042770C Automatic inflatable high voltage circuit breaker with gas weak compression breaker |
| 03/30/1999 | US5889467 Method of monitoring a leakage rate from the envelope of high voltage electrical apparatus |