Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584)
12/1998
12/10/1998DE19739702C1 LV circuit breaker with switch-shaft
12/09/1998EP0883146A2 Permanent magnetic kind of actuation for a switch
12/09/1998EP0882320A2 High-voltage outdoor switch
12/09/1998EP0882300A1 Interlock arrangement for stationary mounted circuit breakers
12/09/1998EP0801798A4 Sealed relay device
12/09/1998EP0789928B1 High-voltage circuit breaker with automatic arc extinction
12/09/1998CN2300180Y Vacuum load switch with isolation breaker
12/09/1998CN2300179Y Outdoor AC high-tension load isolating switch
12/09/1998CN1201245A Contact material for vaccum electron tube
12/09/1998CN1041142C Switch with fuse
12/09/1998CN1041140C Vacuum tube and mfg. method, vacuum circuit breaker having same and mfg. method thereof
12/08/1998US5847347 Vacuum interrupter
12/08/1998US5847341 For transmitting a mechanical motion
12/08/1998US5847340 Power switch mutually locking arrangement
12/02/1998CN2299388Y Handle striking gear of switch interlocking device
12/02/1998CN1200551A 开关 Switch
12/01/1998US5844189 Circuit breaker having contacts with erosion-resistant covering
12/01/1998CA2147576C High or medium voltage circuit breaker
11/1998
11/28/1998CA2238705A1 Circuit interrupter with plasma arc acceleration chamber and contact arm housing
11/26/1998DE19738697C1 High voltage load switch with driven counter contact piece
11/26/1998DE19732487C1 Multi-pole pressurised gas-insulated switch-gear and two/three-position disconnector for HV engineering
11/26/1998DE19727853C1 Niederspannungs-Leistungsschalter mit einer Schaltwelle Low-voltage circuit breaker having a switch shaft
11/26/1998DE19721611A1 Vacuum chamber for vacuum oven
11/25/1998EP0815573B1 Vacuum interrupter
11/25/1998EP0745262A4 High performance circuit breaker with independent pole operation linkage and conical composite bushings
11/25/1998CN2298598Y Vacuum arc-chutes magnetic screening can
11/25/1998CN1199946A Metal-enclosed, gas-insulated switchgear assembly
11/25/1998CN1199857A Method of monitoring leakage rate from the envelope of high voltage electrical apparatus
11/24/1998US5841614 High voltage circuit breaker with insertion of resistance on closure
11/24/1998US5841087 Isolating switch
11/19/1998DE19738702C1 High voltage device with electrical conductor termination
11/19/1998DE19720090A1 High voltage SF6 gas insulated circuit breaker
11/18/1998EP0878817A1 Generator load switch
11/18/1998EP0878816A2 Metal-clad gas insulated power switch
11/18/1998EP0800702B1 Process and circuit arrangement for a commutation and turning-off system of a quick make-and-break
11/18/1998CN2297794Y Rotating vacuum isolating load switch
11/18/1998CN2297793Y Air operating and driving mechanism for circuit breaker
11/18/1998CN1199234A Metal-enclosed gas-insulated circuit breaker
11/18/1998CN1040812C Non-oxidation explosion-proof current breaker
11/18/1998CN1040811C Interruptor with parallel resistors
11/18/1998CN1040810C Contact mechanism of arc-less high-voltage switch
11/17/1998US5837955 Insulating gas sealed in metal container, impact strength
11/17/1998US5837953 DC circuit breaking device
11/17/1998US5837950 Drawer type circuit breaker with drawer contacts biased against contact arcuate portions and external connection terminals
11/15/1998CA2235791A1 Generator circuit breaker
11/11/1998EP0877405A1 Circuit breaker with isolating switch
11/11/1998EP0877404A1 Pneumatically actuated disconnector for high-voltage metal-enclosed switchgear
11/11/1998EP0876672A1 Electromagnetic operating device
11/11/1998EP0876669A1 Electrical actuator means
11/11/1998CN1198580A Vacuum box
11/10/1998US5834725 Circuit interrupter arrangement
11/10/1998US5834717 On-load tap changer of a step switch
11/07/1998CA2235082A1 Circuit breaker with isolation switch
11/05/1998DE19816588A1 High power electrical switch particularly generator circuit breaker
11/04/1998EP0875973A1 Method for monitoring a leak rate in encapsulatedhigh voltage equipment
11/04/1998EP0875972A1 Device for optical detection of arcing in switchgear
11/04/1998CN1197990A Contact material
10/1998
10/30/1998CA2234098A1 Method for monitoring leakage rate from a high tension electrical equipment housing
10/29/1998DE19715314C1 HV circuit breaker with contact device
10/28/1998EP0874380A1 Power cut-off device for low and high-tension
10/27/1998US5828026 Stock giving off arc-extinguishing gas, and gas-blast circuit breaker comprising such a stock
10/27/1998US5828025 Disconnecting/grounding switch for metal-encapsulated, gas-insulated high-voltage switchgear
10/22/1998WO1998047161A1 Electric arc explosion chamber system
10/22/1998DE19716956A1 Electric circuit-breaker with force limiting element
10/22/1998DE19716278A1 Vacuum switching device
10/22/1998DE19715116A1 Lichtbogenkammersystem Arc chamber system
10/22/1998DE19715114A1 Overcurrent trigger for fast DC switch
10/21/1998EP0872934A1 Metal clad switchgear
10/21/1998CN1196590A Gas insulating switching device
10/21/1998CN1196562A Energy storage device of circuit breaker
10/15/1998DE19714655A1 Vacuum switch chamber conditioning device
10/15/1998DE19714653A1 Contact structure for vacuum switching chamber
10/14/1998EP0871192A2 Magnetic actuator
10/14/1998EP0871191A1 Short circuiting device and switchboard section equipped therewith
10/14/1998EP0808462B1 Measuring system for enclosed high-voltage switchgear
10/14/1998EP0796502B1 Metal-clad switchgear with a vacuum switching device
10/13/1998US5821496 Method of controlling transient recovery voltage and gas insulation switch gear using the same
10/13/1998US5821495 Gas circuit breaker
10/13/1998US5821486 Switch for hookstick operation
10/07/1998EP0868734A1 Load switch for a step switch
10/07/1998CN2293894Y Vacuum arc extinguishing chamber for loading switch
10/07/1998CN2293893Y Integral indoor high-voltage vacuum breaker
10/07/1998CN1040163C Operating mechanism for circuit breaker
10/06/1998US5818003 Electric switch with arc chute, radially converging arc splitter plates, and movable and stationary arc runners
10/06/1998US5817998 Circuit breaker with handle locking device
10/01/1998WO1998043333A1 Process and arrangement for selective network monitoring for switchgear
10/01/1998WO1998043265A1 Compressed gas power switch
10/01/1998DE19711193A1 Vacuum high-voltage switching chamber
09/1998
09/30/1998EP0867903A2 Operation apparatus of circuit breaker
09/30/1998EP0813742B1 Mechanical and-member for mutually locking power switches
09/30/1998CN2293116Y Sliding contact for indoor high-voltage vacuum breater
09/29/1998US5814782 Rower circuit-breaker having a closing resistor
09/29/1998US5814781 Puffer type gas circuit breaker
09/24/1998WO1998042000A1 Vacuum switching tubes with a metal housing part positioned between two insulators
09/23/1998EP0866481A2 Vacuum chamber
09/23/1998EP0754346A4 Moving interrupter gap shield
09/23/1998EP0754345A4 Moving gas mixing plate for puffer interrupter
09/23/1998EP0688463B1 Arc stack for a circuit breaker
09/23/1998CN2292326Y Outdoor high-voltage vacuum circuit breaker
09/23/1998CN2292325Y 35 KV outdoor insulating load switch
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