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)
11/1982
11/09/1982CA1135394A1 Adherent coating for entrapping contamination particles in gas-insulated electrical apparatus
11/09/1982CA1135307A1 Arc shorting device
11/09/1982CA1135043A1 Electrical device with divalent sulfur dielectric gas
11/02/1982US4357508 High-voltage circuit breaker
11/02/1982US4357505 Power driven group operated circuit disconnect apparatus for overhead electric power line
10/1982
10/26/1982CA1134414A1 Metal-clad pressurized gas insulated high voltage switching apparatus
10/19/1982US4355220 Electrical switchgear of the rotating arc, double-break type
10/19/1982US4355219 Electrical switchgear
10/13/1982EP0062603A1 On-load isolating switch with a pivoting switch arm and with extinguishing means
10/13/1982EP0062186A1 Disposition of contacts for a vacuum switch
10/12/1982US4354220 Gas insulated power switch-gear apparatus
10/12/1982US4354073 Electric gas blast circuit breaker
10/12/1982US4354072 Pyrolytic cartridge interruption assistance actuator for puffer breaker
10/12/1982CA1133554A1 Vacuum circuit breaker apparatus having elongated support members
10/12/1982CA1133549A1 Electrical contact construction for air-blast circuit breakers
10/06/1982EP0061992A2 High-voltage gas-blast puffer type circuit-breaker
10/06/1982EP0061786A1 Hydraulic or pneumatic control
10/05/1982US4353048 Gas-filled envelope enclosed high voltage relay
10/05/1982CA1133035A1 Load disconnection switch
09/1982
09/29/1982EP0061417A1 On.load isolating switch with a driving device for make-and-break snap-action
09/29/1982EP0016072B1 High speed actuating mechanism
09/28/1982US4351993 Gas-blast switch
09/28/1982US4351992 High-potential testing of vacuum-type circuit interrupters
09/28/1982US4351990 Interphase barrier for switchgear
09/28/1982US4351989 Disconnect switch for metal-encapsulated high-voltage switching installations
09/21/1982US4350406 Separable electrical connector module
09/15/1982EP0060054A1 Vacuum circuit breaker
09/14/1982CA1131679A1 Metal clad puffer type circuit-breaker having closing resistors
09/07/1982US4348575 Contact device
09/07/1982US4348567 Low-voltage vacuum switch operating mechanism
09/07/1982CA1131275A1 Gas type circuit breaker
08/1982
08/31/1982US4347414 Arc shorting device
08/31/1982US4347413 Electrodes of vacuum circuit breaker
08/25/1982EP0058585A1 Operating mechanism for electrical switching apparatuses with three separate positions
08/25/1982EP0058519A2 Electrical junction of high conductivity for a circuit breaker or other electrical apparatus
08/25/1982EP0058235A2 Electromagnetic switching device
08/24/1982US4346273 Circuit-interrupter having a high-frequency transverse magnetic field to assist in arc interruption
08/24/1982CA1130352A1 Blast chamber for current limiting electrical apparatus
08/24/1982CA1130351A1 Contact arrangement for vacuum switches
08/24/1982CA1130350A1 High continuous current capacity oil expulsion fuse
08/18/1982EP0058007A2 Electrical switchgear
08/17/1982US4345126 Vacuum interrupter with transfer-type axial magnetic field contacts
08/17/1982CA1129916A1 Double-flow puffer-type compressed-gas circuit-interrupter
08/11/1982EP0057371A2 Method for extinguishing electric arcs and high voltage power circuit breaker
08/10/1982US4343972 Hydraulic drive for electrical switches
08/10/1982US4343242 Laser-triggered chemical actuator for high voltage isolation
08/10/1982CA1129466A1 Quench chamber for a load disconnection switch
08/03/1982US4343030 Load break switch
08/03/1982US4342891 Circuit breaker with means for producing a flow of arc-extinguishing gas
08/03/1982US4342890 Gas-blast switch
07/1982
07/28/1982EP0056722A2 Vacuum circuit interrupter with on-line monitoring apparatus
07/28/1982EP0056632A2 Circuit interrupter
07/27/1982US4341933 Method and apparatus for extinguishing an electric arc in a circuit breaker
07/27/1982CA1128588A2 Load break switch
07/20/1982US4340794 Semi-conductor for high continuous currents
07/20/1982US4340790 Electrical switch with melamine loaded thermoplastic ablative material
07/13/1982US4339641 Nozzle for a puffer-type circuit breaker
07/06/1982US4338501 Extinguishing chamber for an electric arc of the magnetic blow-out type
07/06/1982US4338500 Device for switching in a resistance when a circuit breaker closes a circuit
07/06/1982CA1127284A1 High voltage breaker device
06/1982
06/30/1982EP0055008A2 Vacuum interrupter
06/30/1982EP0054671A2 Vacuum switch
06/30/1982EP0054670A2 Vacuum switch
06/22/1982US4336520 Method and apparatus for short circuit protection of high voltage distribution systems
06/22/1982US4336430 Vacuum interrupter
06/22/1982US4336414 Method and apparatus for treating noxious gases
06/22/1982CA1126315A1 Self-extinguishing circuit breaker comprising gas pre-compression means
06/10/1982WO1982001960A1 Method of preparation of contacts and electrodes of vacuum electric apparatuses
06/09/1982EP0053574A1 Hydraulic control device for a high-tension electrical circuit breaker
06/09/1982EP0053524A1 Self blast electrical circuit breaker with rotating arc
06/08/1982US4334133 Contact arrangement for vacuum switches
06/08/1982CA1125338A1 Circuit-interrupting device
05/1982
05/26/1982EP0052371A2 Vacuum interrupter
05/25/1982US4331850 Vacuum switch including a getter device
05/25/1982CA1124295A1 Structural supporting arrangements for a multi-break live-tank circuit-breaker assemblage having improved voltage-distribution characteristics between the several series breaks
05/25/1982CA1124290A1 Vacuum circuit interrupter electrode
05/12/1982EP0051556A1 Contact for a gas circuit breaker with a tubular element of ferromagnetic material
05/12/1982EP0051475A2 A vacuum interrupter
05/12/1982EP0051135A1 Apparatus for multiple-point resistance welding
05/11/1982US4329554 Loadbreak arc snuffing device
05/11/1982US4329553 Gas-blast switch
05/11/1982US4329551 Alternating current interrupter with magnetic arc extinguishing means
05/05/1982EP0050955A2 A vacuum interrupter
05/05/1982EP0050826A2 Circuit breaker having a parallel resistor arrangement
05/04/1982US4328403 Single barrel puffer circuit interrupter
05/04/1982CA1123031A1 Hydraulic control system for electric circuit-breaker
04/1982
04/28/1982EP0050341A2 Gas circuit breaker of the resistance breaking type
04/28/1982EP0050187A2 Circuit-breaker protecting against overcurrents
04/27/1982US4327263 Switching device
04/27/1982US4327262 Gas-blast switch
04/27/1982US4326867 Sulfur hexafluoride from the switching chamber voltage circuit breaker
04/14/1982EP0049375A1 Autopneumatic SF6 gas-blast switch with a pneumatic drive mechanism
04/13/1982US4324960 Windmill-shaped electrode for vacuum circuit interrupter
04/13/1982US4324959 Pre-insertion resistor mechanism for a circuit interrupting device
04/06/1982US4323871 Circuit protecting apparatus including resettable vacuum fuse and switch
04/06/1982US4323743 Means for operating blast valve in two-pressure circuit breaker
04/06/1982US4323590 Ion implantation or alloying
04/06/1982CA1121418A1 Telescoping disconnect switch with rail-mounted telescope section
04/06/1982CA1121413A1 Liquid dielectric gas-type circuit interrupter
03/1982
03/30/1982US4322591 Circuit breaker with means for producing a flow of arc-extinguishing gas
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