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)
10/1980
10/28/1980US4230920 Gas-blast switch
10/21/1980US4229723 Diaphragm having a pattern of reduced thickness in a high voltage, circuit-interrupting device
10/21/1980US4229632 Compress gas circuit breaker
10/21/1980US4229631 Vacuum-type circuit breaker
10/21/1980US4229627 Gas puffer type current interrupter and method
10/21/1980CA1088174A1 Current interchange for a gas actuated bushing
10/21/1980CA1088133A1 Means for effectively controlling the forces imposed on the movable contact of a vacuum-type circuit interrupter
10/21/1980CA1087875A1 Operation mechanism for actuating a circuit interrupter
10/15/1980EP0017378A1 Vacuum circuit interrupter
10/15/1980EP0017076A1 Contact arrangement for vacuum switches and process for their manufacture
10/15/1980EP0017070A1 Gas-tight passage for push rods of electrical switch gear operating with the aid of compressed gas
10/15/1980EP0017069A1 Auto-pneumatic high voltage power circuit breaker
10/15/1980EP0016983A1 Puffer-type gas circuit breaker
10/15/1980EP0016881A1 A method and apparatus for the recovery of gases from enclosures
10/15/1980EP0016856A1 Quench chamber for load disconnecting switches
10/14/1980US4228333 Circuit interrupter having controlled rate of arc extinguishment
10/14/1980US4228332 Gas pressure circuit interrupter
10/14/1980US4228331 Gas-blast valve of a gas-blast circuit-breaker
10/14/1980CA1087722A1 Electrolytic cell vacuum switching system
10/14/1980CA1087662A1 Dual spring circuit interrupter apparatus
10/14/1980CA1087660A1 Gas-type circuit-interrupters having admixtures of helium with small concentrations of sulfur- hexafluoride (sf.sub.6) gas
10/07/1980US4227170 Current-reducing device
10/07/1980US4227059 Driving mechanisms for vacuum circuit breakers
10/07/1980CA1087233A1 High voltage circuit interrupter switch arrangement
10/07/1980CA1087232A1 Puffer-type gas blast electrical switch
10/07/1980CA1087231A2 Electromagnetic contactor comprising magnetic arc blowout means
10/01/1980EP0016720A1 Gas-blast circuit-breaker
10/01/1980EP0016072A1 High speed actuating mechanism.
09/1980
09/30/1980US4225763 Means for suppressing contact-separation at the end of a vacuum circuit-breaker closing operation
09/30/1980US4225762 Gas blast circuit breaker
09/30/1980US4225761 Electric circuit breaker comprising a plurality of vacuum interrupters simultaneously operated by a common operator
09/30/1980CA1086850A1 Power contactor and control circuit
09/30/1980CA1086817A1 Compressed gas filled circuit breaker
09/30/1980CA1086805A1 Vacuum interrupter and disconnect combination
09/30/1980CA1086804A1 Vacuum switches
09/30/1980CA1086486A1 Arc extinguishing material
09/23/1980US4224550 Vacuum discharge device with rod electrode array
09/23/1980US4224490 Fluid blast circuit breaker
09/23/1980US4223592 Pneumatic operating-mechanism construction
09/23/1980CA1086393A1 Gas actuated high voltage bushing
09/17/1980EP0015865A1 Gas blast circuit breaker
09/16/1980US4223192 Gas blast circuit breaker
09/16/1980US4223191 Upstanding mounting structure for high-voltage three-break live-module circuit-breaker
09/09/1980US4221944 Driving apparatus for electric power circuit breakers with rectangular housing
09/09/1980US4221943 Gas-blast type circuit interrupter
09/09/1980US4221942 Apparatus and method for quenching an arc in a gas flow circuit
09/09/1980CA1085436A1 Single barrel puffer circuit interrupter with downstream gas coolers
09/02/1980US4220838 Gas-blast switch
09/02/1980US4220837 Bi-switch construction having an auxiliary interrupting device associated therewith
09/02/1980CA1085037A1 Self-cooled metal-clad switchgear
09/02/1980CA1084996A1 Leak sensor and indicating system for vacuum circuit interrupters
08/1980
08/26/1980US4219712 High compression puffer circuit interrupter
08/26/1980US4219711 Axial blast puffer interrupter with multiple puffer chambers
08/26/1980US4219366 Phenolic resin tackified with trichloroethylene
08/26/1980CA1084565A1 High-current vacuum switch with reduced contact erosion
08/26/1980CA1084255A1 Arc extinguishing composition including dicyandiamide
08/20/1980EP0014393A1 Pressurized gas high voltage power circuit breaker
08/20/1980EP0014377A2 Power circuit breaker
08/19/1980US4218597 Gas-blast type circuit interrupter
08/19/1980CA1084094A1 Vacuum circuit interrupter with disc-shaped beryllium contacts
08/05/1980US4216513 D.C. Circuit breaker
08/05/1980US4216364 High current cell-shorting switches
08/05/1980US4216361 Low voltage vacuum switch with plural conic shields about the contacts
08/05/1980US4216360 Low voltage vacuum switch with internal arcing shield
08/05/1980US4216359 Low voltage vacuum switch and operating mechanism
07/1980
07/29/1980US4215256 Gas-insulated switchgear apparatus
07/29/1980US4215255 Vacuum arc switching device with internal shielding
07/29/1980US4215253 High direct and alternating current switch
07/29/1980US4214474 Density monitoring apparatus
07/23/1980EP0013289A1 Flat quench chamber for a load break switch
07/22/1980US4214138 Vapor shield support ring for a vacuum interrupter
07/22/1980CA1082269A1 Electromagnetic blow-out arc circuit breaker
07/22/1980CA1082268A1 Contact alloy for a vacuum circuit breaker
07/22/1980CA1082267A1 Vacuum circuit breaker
07/15/1980US4213022 Two-pressure type circuit interrupter
07/15/1980US4213020 Pneumatic operating mechanism for a circuit-breaker
07/15/1980CA1081747A1 Stored energy circuit breaker
07/15/1980CA1081745A1 Arc chute
07/15/1980CA1081744A1 Stainless-steel interrupter-head construction for circuit-interrupters continuously carrying high-value- amperage currents
07/15/1980CA1081743A1 Modular puffer-type circuit-interrupter unit adaptable for different voltage and current ratings
07/15/1980CA1081742A1 Low voltage vacuum shorting switch
07/10/1980WO1980001442A1 Supervision device with an optical detector for electrical arcs in a circuit-breaker
07/09/1980EP0012752A1 Short-circuiter for high direct currents.
07/08/1980US4211904 Gas-blast circuit breaker
07/08/1980US4211903 Electromagnetic puffer type gas circuit breaker
07/08/1980US4211902 Apparatus for phase switching in pumping-up power station
07/08/1980US4211542 Method and apparatus for producing dry, compressed air for electrical switch gear
07/01/1980US4210790 Vacuum-type circuit interrupter
06/1980
06/25/1980EP0012522A2 Electrical switchgear
06/24/1980US4209680 High speed actuating mechanism
06/24/1980US4209679 Electrical switch
06/24/1980CA1080337A1 Vacuum interrupter device
06/17/1980US4208556 Force convection heat pump and temperature measuring system for a gas insulated two pressure breaker
06/11/1980EP0012048A1 Rotating arc switch
06/11/1980EP0011972A2 Electrical switchgear
06/11/1980EP0011958A1 DC contactor with solid state arc quenching
06/11/1980EP0011820A1 Low-voltage short-circuit arrangement for electrolytic cells or analogous devices
06/10/1980US4207447 Gas interrupter having narrow and wide arc passages
06/10/1980US4207446 Grounded tank type gas circuit breaker
06/10/1980CA1079347A1 Saturating time-delay transformer for overcurrent protection
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