| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 05/25/2000 | CA2317571A1 Medium to high voltage load circuit interrupters including metal resistors having a positive temperature coefficient of resistivity (ptc elements) |
| 05/24/2000 | EP1003262A2 Circuit breaker |
| 05/24/2000 | EP1003192A2 Circuit breaker mechanism for a rotary contact system |
| 05/24/2000 | CN2379895Y Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch |
| 05/24/2000 | CN2379894Y High voltage loaded switch |
| 05/23/2000 | US6066820 Spring drive mechanism for switchgear, in particular a circuit breaker |
| 05/23/2000 | CA2009289C Metal-clad, compressed gas-blast circuit-breaker with a shifting linkage |
| 05/18/2000 | DE19851965A1 Helical contact piece for vacuum switch chamber has slots which radially adjoin edge of contact piece |
| 05/18/2000 | DE19851964A1 Contact piece for vacuum switch chamber has coil ring with upward and downward projections, with contact piece plate placed on upward projection |
| 05/17/2000 | CN2378822Y High-voltage vacuum load switch |
| 05/17/2000 | CN2378821Y Vacuum loading switch insulating base |
| 05/17/2000 | CN2378820Y Variable included angle energy-accumulating fast switching device |
| 05/17/2000 | CN2378819Y 自动高压隔离开关 Automatic high-voltage isolation switch |
| 05/17/2000 | CN1253369A Power mains breaker |
| 05/17/2000 | CN1253366A Switch set of machinery with three position visible device |
| 05/17/2000 | CN1052581C Arrangement of coupler bays in sealed medium voltage switching systems |
| 05/17/2000 | CN1052558C Hydraulic pressure drive of circuit breaker |
| 05/16/2000 | US6064025 Control means for electrical equipment, E.G. for a high-voltage circuit-breaker |
| 05/16/2000 | US6064021 Clutch assembly for electrical switching apparatus with large compression close spring |
| 05/10/2000 | EP0999569A2 Power switch |
| 05/10/2000 | CN2377669Y Small superhigh-voltage motor switch |
| 05/10/2000 | CN1052331C Grunding switch gear device |
| 05/10/2000 | CN1052328C Ceramic resistor, production method thereof, and gas circuit breaker made from it |
| 05/09/2000 | US6060674 Circuit interrupter with plasma arc acceleration chamber and contact arm housing |
| 05/09/2000 | US6060669 Tap selector |
| 05/04/2000 | WO2000025334A1 Switchgear with switching devices, especially vacuum circuit breakers |
| 05/04/2000 | WO2000025333A1 Switchgear with switching devices arranged in housings |
| 05/04/2000 | DE19850396A1 Leistungsschalter Circuit breaker |
| 05/04/2000 | DE19850395A1 Power switch for power station, distribution station, has gas channel with internal and external sections connected to intake |
| 05/04/2000 | DE19849295A1 High-voltage (HV) arc-blowout circuit-breaker with insulating material nozzle |
| 05/03/2000 | EP0997919A1 Switching device having a mechanical signaling element with three positions |
| 05/03/2000 | CN2376668Y Under-voltage release for high-voltage switch |
| 05/03/2000 | CN2376667Y Switching on holding structure for high-voltage breaker operation mechanism |
| 05/03/2000 | CN1252161A Electric arc explosion chamber system |
| 04/27/2000 | WO2000024016A1 Vacuum switch and vacuum switch gear |
| 04/27/2000 | WO2000007202A3 Medium- and/or high-voltage circuit breaker |
| 04/27/2000 | DE19951042A1 Collapsible contact arm drive coupling for heavy current circuit breaker operatng mechanism has shear linkage element for releasing drive coupling when given application force is exceded |
| 04/27/2000 | DE19850206A1 Switch and control-gear especially with vacuum contactors |
| 04/27/2000 | DE19850202A1 Electrical switchgear with individual vacuum switch housings |
| 04/27/2000 | DE19848551A1 Antrieb für das bewegliche Kontaktstück eines elektrischen Schalters Drive for the movable contact piece of an electrical switch |
| 04/27/2000 | DE19848195A1 Vacuum switch chamber drive has movable contact rod acted on by cam surface with 2 sliding or rolling cam sections for movement into switch closed and open positions |
| 04/26/2000 | EP0996135A2 Driving device for the movable contact of an electrical switch |
| 04/26/2000 | EP0898780B1 Magnetically driven electric switch |
| 04/26/2000 | CN2376073Y Oleo damper for primary cut-out |
| 04/26/2000 | CA2287448A1 Power distribution system with circuit breakers remotely resettable by signals transmitted over the power lines |
| 04/20/2000 | WO2000022641A1 Medium voltage switch |
| 04/20/2000 | DE19841771C1 Plasma stabilisation unit for vacuum or gas discharge switch |
| 04/20/2000 | DE19837585C1 Schaltungsanordnung und Verfahren zur Abschaltung einer elektrischen Energiequelle eines Fahrzeuges Circuit arrangement and method for disconnecting an electrical power source of a vehicle |
| 04/19/2000 | EP0920705B1 Load interrupter switch |
| 04/19/2000 | CN2374966Y Outdoor column type high voltage vacuum circuit breaker |
| 04/19/2000 | CN2374965Y 户外高压真空断路器 Outdoor high voltage vacuum circuit breaker |
| 04/19/2000 | CN1051635C Insulation gas filled circuit breaker |
| 04/19/2000 | CN1051613C Method and system for determining density of insulating gas in electrical apparatus |
| 04/18/2000 | CA2009388C Switch configuration with integral sensing and power supply apparatus |
| 04/13/2000 | WO2000021108A1 Vacuum switch and vacuum switch gear using the vacuum switch |
| 04/13/2000 | WO2000021107A1 Vacuum switch and vacuum switch gear using the vacuum switch |
| 04/13/2000 | WO2000021106A1 Vacuum switch and vacuum switchgear using the switch |
| 04/13/2000 | WO2000021105A1 Vacuum switch gear |
| 04/13/2000 | WO2000021104A1 Vacuum switch and vacuum switch gear |
| 04/13/2000 | DE19946223A1 Electricity distribution circuit breaker, has central circular unit with inner moving contact and outer contact segment sections having greater curvature radius |
| 04/13/2000 | DE19846435A1 Contact arrangement for vacuum chamber, has second contact point in parallel with coil opening first contact for switch-off, in which current flows in coil and first contact point to generate axial magnetic field |
| 04/12/2000 | EP0993012A1 Closing resistor assembly for high voltage apparatus |
| 04/12/2000 | EP0992050A1 High voltage circuit breaker with two arcing contacts which can be actuated in an opposite direction |
| 04/12/2000 | EP0992046A2 Low-voltage power switch with an actuating shaft |
| 04/12/2000 | CN2373886Y Upright column type outdoor vacuum circuit breaker |
| 04/12/2000 | CN1051410C Conductive connector for switchgear |
| 04/11/2000 | US6049050 Medium or high voltage circuit breaker including a transmission belt looped around two wheels |
| 04/11/2000 | US6048216 Vacuum circuit breaker as well as vacuum valve and electric contact used in same |
| 04/06/2000 | DE19948751A1 Encapsulated high-voltage (HV) circuit-breaker for electrical switchgear |
| 04/05/2000 | EP0991094A1 Trip device of circuit breaker |
| 04/05/2000 | CN2372778Y 高压开关 High Voltage Switchgear |
| 04/05/2000 | CN1051068C Ceramic-metal binding material and vacuum seal container made using said material |
| 04/04/2000 | US6046423 Switchgear |
| 04/04/2000 | US6046422 Vacuum interrupter with a vapor shield associated with the insulator |
| 04/04/2000 | CA2210371C Self-blow-arcing high-voltage circuit breaker |
| 03/30/2000 | WO2000017975A1 Gas-insulated switching device |
| 03/30/2000 | DE19826766C1 Vakuumschaltröhre mit einem dem Isolator zugeordneten Dampfschirm Vacuum interrupter with the insulator associated vapor shield |
| 03/29/2000 | CN2371662Y Low-voltage knife-shaped isolator |
| 03/29/2000 | CN1248780A Circuit breaker with electric resistance plugging in system having long plugging time |
| 03/28/2000 | US6043446 Vacuum switch including shield and bellows mounted on electrode support structure located in electrode circumferential groove |
| 03/22/2000 | EP0987727A1 Discriminating method between an internal arc and an interruption arc in a medium or high voltage circuit breaker |
| 03/22/2000 | CN1050687C Security protection mechanism for disjoint of three working position load switch |
| 03/21/2000 | US6040970 Interrupter unit of a high-voltage power circuit breaker |
| 03/21/2000 | US6040538 Switchgear assembly |
| 03/16/2000 | DE19841175A1 Gasisoliertes Hochspannungsbauteil mit Transportabstützung A gas-insulated high-voltage component with transport support |
| 03/16/2000 | DE19830067C1 High-voltage (HV) circuit-breaker esp. gas-blast circuit breaker |
| 03/15/2000 | EP0986154A1 High-voltage, gas-insulated switchgear with a transport support |
| 03/15/2000 | EP0986081A1 High voltage circuit breaker with resistance insertion system with long duration insertion |
| 03/15/2000 | EP0806049B1 High-voltage circuit breaker |
| 03/15/2000 | CN2369344Y Spring hydraulic mechanism for high voltage breaker |
| 03/15/2000 | CN1247400A Air insulated high voltage component with transport support |
| 03/15/2000 | CN1247370A Drive assembly with calibrating equipment |
| 03/14/2000 | US6038117 Power switching apparatus |
| 03/08/2000 | EP0983601A1 Rotation-activated circuit-breaker with a leading auxiliary switch |
| 03/08/2000 | EP0983598A1 Electric high voltage switch |
| 03/08/2000 | CN2368151Y Dilatation -type quickly arc-supressing ac. contactor |
| 03/07/2000 | US6034859 Power circuit-breaker with current transformers and data storage device |
| 03/07/2000 | US6034472 Vacuum tube having a getter apparatus |
| 03/01/2000 | CN2366965Y Indoor high tension vacuum switch |
| 03/01/2000 | CN2366964Y Microcomputer controlled anti-error operation interlocking for high-tension switch arrangement |