| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 02/18/1998 | CN2274810Y Vacuum switch controlled with spring energy from manpower turning |
| 02/18/1998 | CN1173727A Isolating/earthing switch for metal-encapsulated, gas-insulated high-voltage switchgear |
| 02/17/1998 | US5719365 Insulated type switching device |
| 02/12/1998 | WO1998006120A1 Sf6 gas-insulated switch installation for electricity distribution supply networks |
| 02/12/1998 | DE19633524A1 Leistungsschaltanlage mit Trennfunktion Circuit-breaker with isolating function |
| 02/11/1998 | EP0823721A1 Self-blasting electrical circuit breaker with a rotating arc |
| 02/11/1998 | CN1173239A Metal-clad switchgear with a vacuum switching device |
| 02/10/1998 | US5717185 Operating mechanism for high voltage switch |
| 02/10/1998 | US5717184 High-voltage circuit-breaker that inserts a resistance on closure |
| 02/10/1998 | US5717183 High-voltage power switch with a cooling device for cooling the quenching gas |
| 02/05/1998 | DE19730583A1 Pressure gas switch e.g. for outdoor switching stations with porcelain insulators |
| 02/04/1998 | EP0822565A2 Gas-blast switch |
| 02/04/1998 | EP0822341A2 Oleo-pneumatic device for actuating electric switches |
| 02/03/1998 | US5715134 Screened medium-voltage substation |
| 01/29/1998 | DE19634451C1 Lastschalter Circuit Breakers |
| 01/29/1998 | DE19631533A1 Load switchgear for HV disconnection of power distribution transformer |
| 01/28/1998 | EP0821382A1 High-voltage circuit breaker of self-blasting type |
| 01/22/1998 | DE19629204A1 Electrical vacuum switch chamber with movable contact-piece |
| 01/22/1998 | DE19628758A1 Multi-phase electric switching device based on vacuum switch-tubes e.g. for switchgear switch-bay |
| 01/21/1998 | EP0820083A2 Circuit breaker |
| 01/21/1998 | CN1170948A Circuit breaker |
| 01/15/1998 | WO1998001883A1 Electrical circuit breakers |
| 01/15/1998 | WO1998001877A1 Compressed gas power switch |
| 01/15/1998 | DE19649979C1 High-voltage switchgear electrodynamic drive system |
| 01/15/1998 | DE19629475A1 Druckgasleistungsschalter Pressure gas circuit breaker |
| 01/15/1998 | DE19627956A1 Producing an electric contact element for a vacuum switching chamber |
| 01/14/1998 | EP0694204B1 Arc stack for a circuit breaker |
| 01/14/1998 | CN1170216A Clad end seal for vacuum interrupter |
| 01/14/1998 | CN1170215A Vacuum valve |
| 01/07/1998 | EP0817228A2 Power switch |
| 01/07/1998 | EP0815573A1 Vacuum interrupter |
| 01/07/1998 | EP0815572A1 On-load tap changer of a step switch |
| 01/07/1998 | EP0763250B1 Compressed-gas circuit breaker with a nozzle made of insulating material |
| 01/06/1998 | US5705781 Electrical gas-blast switch |
| 01/02/1998 | DE19636237A1 Low-voltage circuit-breaker switching contact system |
| 01/02/1998 | DE19624920A1 Kontaktanordnung für Vakuumschalter Contact arrangement for vacuum switches |
| 12/31/1997 | WO1997050106A1 Drive for high-voltage vacuum switchgear |
| 12/31/1997 | WO1997050105A1 Contact arrangement for vacuum switch |
| 12/31/1997 | WO1997050102A1 Switching contact system for a low voltage power switch with flexible conductors |
| 12/31/1997 | CN1169018A Vacuum tube |
| 12/31/1997 | CN1036882C Gas insulating switch arrangement |
| 12/29/1997 | EP0813742A1 Mechanical and-member for mutually locking power switches |
| 12/24/1997 | CN1168532A Linear spring controller for high-voltage circuit breaker |
| 12/18/1997 | DE19722110A1 Gas-tight sealed switch-contacts chamber |
| 12/18/1997 | DE19625672C1 Antrieb für Hochspannungsvakuumschaltgeräte Drive system for high voltage vacuum switchgear |
| 12/18/1997 | DE19625128A1 Vacuum arc-quench vacuum chamber e.g. for high- and low-voltage circuit-breaking and load switching |
| 12/18/1997 | DE19623733A1 Heavy current switch with opposite-facing plane contact discs in gas-tight housing |
| 12/17/1997 | EP0812462A1 Stored-energy mechanism for a high-voltage circuit-breaker pole filled with an insulating gas |
| 12/17/1997 | CN1167993A Power breaker |
| 12/17/1997 | CN1167992A Vacuum load switch contact material and its mfg. method |
| 12/17/1997 | CN1167742A Ceramic-metal binding material, ceramic-metal bound article making method and vacuum seal container |
| 12/16/1997 | US5698831 Integrated electrical system |
| 12/16/1997 | US5697150 Method forming an electric contact in a vacuum circuit breaker |
| 12/10/1997 | EP0811998A1 Gas blast switch with a braking device |
| 12/09/1997 | US5696364 Combined interrupter disconnect switch blade for high voltage switch |
| 12/04/1997 | DE19718107A1 Vacuum switch tube |
| 12/03/1997 | CN2269634Y Novel high voltage vacuum circuit breaker |
| 12/03/1997 | CN2269633Y Two function high voltage ac vacuum switch |
| 12/03/1997 | CN1166680A 同步式气体开关装置 Synchronous gas switchgear |
| 12/03/1997 | CN1166678A Hydraulic pressure drive of circuit breaker |
| 12/02/1997 | US5693873 Method and a system for determining the density of an insulating gas in an electrical apparatus |
| 11/27/1997 | WO1997044802A1 Magnetically driven electric switch |
| 11/26/1997 | EP0809269A2 High voltage circuit breaker with two driven switch contact pieces |
| 11/26/1997 | EP0809268A2 High voltage circuit breaker with a nozzle made of insulating material |
| 11/26/1997 | EP0808462A1 Measuring system for enclosed high-voltage switchgear |
| 11/26/1997 | CN1166240A Arrangement of coupler bays in sealed medium voltage switching systems |
| 11/26/1997 | CN1166232A Vacuum valve |
| 11/25/1997 | US5691522 Vacuum interrupter with a single internal assembly for generating an axial magnetic field |
| 11/25/1997 | US5691521 Vacuum circuit breaker with improved contact assembly |
| 11/20/1997 | WO1997043776A1 Circuit breaker with handle locking device |
| 11/20/1997 | DE19619835A1 Elektrischer Schalter mit einem magnetischen Antrieb Electrical switch with a magnetic drive |
| 11/20/1997 | CA2226543A1 Circuit breaker with handle locking device |
| 11/19/1997 | EP0807946A1 High-voltage gas-blast puffer type circuit-breaker |
| 11/19/1997 | EP0807945A1 High voltage circuit breaker with resistance insertion on closing |
| 11/19/1997 | CN1165389A Vacuum electrical switch or circuit breaker |
| 11/19/1997 | CN1165388A Isolator |
| 11/19/1997 | CN1165385A Power circuit-breaker having closing resistor |
| 11/18/1997 | US5689088 Gas insulated device, gas insulated switchgear, gas insulated bus line, and cable direct-coupled gas insulated switchgear |
| 11/18/1997 | US5687472 Method of manufacturing a vacuum interrupter |
| 11/13/1997 | DE19715198A1 Vacuum valve with cylindrical insulating container |
| 11/12/1997 | EP0806049A1 High-voltage circuit breaker |
| 11/12/1997 | CN1164928A On-load tap changer of step switch |
| 11/12/1997 | CN1164749A Operating mechanism for high-voltage circuit-breakers |
| 11/05/1997 | EP0600071B1 Manual override mechanism for a remote controlled circuit breaker |
| 10/30/1997 | WO1997040507A1 Interrupter unit of a high-voltage power circuit breaker |
| 10/30/1997 | DE19708465A1 Switch apparatus with thyristor |
| 10/29/1997 | EP0803888A2 Disconnecting switch |
| 10/29/1997 | EP0803141A1 Arrangement of coupler bays in sealed medium voltage switching systems |
| 10/29/1997 | EP0756753B1 Electric switching devices with blow-out channels for arc gases |
| 10/29/1997 | CN2266194Y Post vacuum high-voltage circuit breaker |
| 10/29/1997 | CN1163497A Gas braker |
| 10/22/1997 | EP0801804A2 Stray arc protective device, especially for low-voltage switching installations for distributing electric power |
| 10/22/1997 | EP0801798A1 Sealed relay device |
| 10/22/1997 | CN2265587Y Protective type vacuum contactor |
| 10/22/1997 | CN2265586Y Mechanical interlocking device for circuit breaker |
| 10/22/1997 | CN1036229C Flexible connector for a circuit interrupter |
| 10/22/1997 | CA2200634A1 Isolating switch |
| 10/21/1997 | US5679986 Synchronization of switchgear switching to waveform indices |
| 10/16/1997 | DE19631323C1 Pressure gas switch e.g. for outdoor switching stations with porcelain insulators |
| 10/16/1997 | DE19614104A1 Pressure gas switch |