Patents
Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584)
01/1987
01/13/1987US4636599 High-voltage switch
01/07/1987CN86104646A Gas insulation switch
01/07/1987CN86103785A 真空断续器 Vacuum interrupter
01/06/1987US4635015 Switching device for shorting at least one superconducting magnet winding
01/06/1987US4635014 Contactor having a Z-shaped current path for blow-out force reduction
01/02/1987DE3620620A1 Gas interruptor switch (isolator)
01/02/1987DE3522539A1 Insulating-gas switching device
12/1986
12/30/1986USRE32321 Electric switch and improved device using same
12/30/1986US4633049 Gas-blast switch
12/30/1986EP0205897A2 Arcing contact piece and process for manufacturing such a piece or the like
12/30/1986CA1216020A1 Grounding switch
12/24/1986CN85105180A Disconnecting switch for gas-insulated switchgear
12/23/1986US4631625 Microprocessor controlled circuit breaker trip unit
12/23/1986US4630361 Process for preparing a vacuum switch tube
12/17/1986EP0205397A1 Isolating switch for a high-tension gas-insulated metal-clad switchgear
12/17/1986EP0201430A2 Gas interrupter with arc blasting
12/17/1986CN86103471A Spring operation means for circuit breaker
12/17/1986CN86101917A Gas insulating apparatus
12/17/1986CN86101866A Insulator gas breaker
12/16/1986US4629840 Device for quenching an electric arc
12/16/1986US4629839 High current switch contacts
12/10/1986EP0204262A1 Vacuum interrupter
12/10/1986EP0204180A1 Switch with sulfur hexafluoride operating in a very low temperature environment
12/10/1986EP0204082A1 Cast casing for medium voltage switchgear
12/09/1986US4628393 Method for switching in a three-phase high voltage circuit
12/09/1986US4628164 Arc contact system for electrical circuit breakers, in particular of the type using an arc extinguishing fluid
12/03/1986EP0203367A1 Contact arrangement for a vacuum system
12/02/1986US4626638 Operating system for remote electrical equipment
12/02/1986CA1214856A1 Magnetically operated ac switching device with delay- on-dropout
12/02/1986CA1214813A1 Distribution class puffer interrupter
11/1986
11/26/1986EP0202496A1 Gas blast switch
11/26/1986CN85104210A Actuator
11/20/1986EP0201695A2 Load-break switch and switching circuit using this load-break switch
11/18/1986US4623769 Continuous-current switch for shorting at least one superconducting magnet winding
11/18/1986US4623767 Disconnect switch for metal-clad, pressurized gas-insulated high-voltage switchgear with damping resistors
11/12/1986EP0201248A2 Controlled electrical contacts for electrical switchgear
11/12/1986CN86103295A Sulfur hexafluoride circuit breaker operating in a very low temperature environment
11/12/1986CN86101700A Spring operation device for beaking-making machinery
11/11/1986US4622443 Single-pole load disconnecting switch arrangement in a housing
11/11/1986US4622250 Insulating material and use thereof in insulators
11/11/1986US4621561 Switch for inductive energy store transfer circuit
11/05/1986EP0200465A2 Vacuum devices
11/04/1986US4621175 Drive for a vacuum switch
10/1986
10/29/1986EP0199594A2 High current switch contacts
10/29/1986EP0199593A2 High current switch contacts
10/29/1986EP0199248A1 On-load high tension rotary switch
10/29/1986EP0199044A2 Enclosed on-load switch
10/29/1986EP0120874B1 Electric current breaking device
10/28/1986US4620074 Contact arrangement for vacuum switches
10/22/1986CN86102745A Switchgear
10/21/1986US4618905 DC circuit breaker
10/21/1986US4618753 Insulating chamber
10/21/1986US4618752 Gas-insulated interrupter
10/21/1986US4618750 Vacuum switching tube with a coil for generating a magnetic field
10/21/1986US4618749 Solid insulator-type vacuum switch gear
10/15/1986EP0197739A2 Air circuit interrupter
10/15/1986EP0197339A1 High tension circuit breaker with closing resistor
10/15/1986EP0197332A2 Material for electrical contacts with an arc-extinguishing capacity
10/14/1986US4617545 Submersible primary circuit breaker
10/14/1986US4617542 High voltage switching device
10/14/1986US4617513 Measurement device for use in high-voltage gas-insulated switch gear
10/14/1986US4617435 Hybrid circuit breaker
10/14/1986US4617434 Contact arrangement for a vacuum interrupter
10/14/1986US4616856 Nozzle and retaining arrangement
10/08/1986EP0196503A1 Vacuum switch casing
10/01/1986EP0196240A2 Metal-clad gas-insulated switchgear apparatus
10/01/1986EP0196234A2 Gas insulated switchgear
10/01/1986EP0195904A1 Gas blast switch
09/1986
09/30/1986US4614850 Vacuum switch for the low-voltage range, especially a low-voltage contactor
09/23/1986US4613727 Electrical insulator column with fiber optic cable and gas supply tube
09/17/1986EP0194489A2 Gas blast circuit breaker
09/16/1986US4612429 Multiple-impact shock absorbing means for circuit interrupter and other apparatus
09/16/1986US4612428 Compressed gas circuit breaker able to be assembled and disassembled without a significant loss of gas
09/16/1986CA1211487A1 High-voltage y-shaped dead tank circuit interrupter
09/10/1986EP0193604A1 Automatically-reacting switch suitable for current limitation
09/09/1986US4611189 Underoil primary circuit breaker
09/09/1986CA1211144A1 Pneumatic self-blasting circuit breaker
09/02/1986US4609798 Means for assembling two enclosures of an electrical cutout apparatus
09/02/1986US4609797 Splitter plate
09/02/1986CA1210846A1 Selective solid state trip unit associated with a limiting circuit-breaker
08/1986
08/27/1986EP0192251A2 Electrode of vacuum circuit breaker
08/27/1986EP0191927A1 Multiposition threepole disconnecting switch, particularly for pressure gas insulated metal clad high-voltage switch installations
08/27/1986CN85108391A Contact arrangements for vacuum switches
08/26/1986US4608470 High-voltage switch
08/20/1986EP0191465A2 A puffer type gas blast circuit breaker
08/20/1986EP0191398A1 Oil-filled tap changer assembly with oil expansion vessel
08/20/1986CN85107522A Gas-blast switch
08/13/1986EP0190984A2 Underoil primary circuit breaker
08/06/1986EP0189689A1 Electrical switch with screen
08/06/1986CN85108985A Drawout switchgear apparatus with extensible track
08/05/1986US4604508 Electric circuit breaker of the type using an arc quenching fluid with pressure self-generating due to the breakdown of the fluid
07/1986
07/31/1986WO1986004452A1 Interrupter/isolator
07/23/1986EP0187951A1 Switch contact for a vacuum switch
07/23/1986EP0187950A1 Vacuum switch
07/22/1986CA1208337A1 Vacuum monitor for vacuum interrupter
07/16/1986CN85108383A Tank type switchgear
07/15/1986US4600260 Electrical connector
07/09/1986EP0186688A1 High voltage switching device
07/08/1986US4599671 Current limiting devices utilizing resistive parallel rails
07/02/1986EP0186546A1 Electrical switch with a shield