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)
05/1998
05/20/1998DE19703973C1 Switching device with under-voltage auxiliary trip e.g. for circuit breaker
05/20/1998CN2282266Y AC vacuum contactor with rated current as 40A
05/20/1998CN2282263Y Three phase split outdoor vacuum load switch
05/20/1998CN2282262Y Multiple controlled load switch
05/20/1998CN2282217Y Sulfur hexafluoride density controller
05/20/1998CN1182498A Mechanical and-member for mutually lockiing power switches
05/20/1998CN1182273A Electromagnetic actuator
05/19/1998US5753876 Clad end seal for vacuum interrupter
05/19/1998US5753875 Heat sink for contact stems of a vacuum interrupter and a vacuum interrupter therewith
05/13/1998EP0840897A1 Functional test process for a mechanical switching element
05/13/1998CN1181605A Electric current switching apparatus with unitized removable contacts
05/13/1998CN1181604A Power breaker
05/13/1998CN1181603A Power breaker
05/13/1998CN1038373C Multi-phase with voltage switching device with metal casing filled by high pressure gas
05/12/1998US5750950 Hydraulic drive device for circuit breaker and circuit breaker using the same
05/12/1998US5750949 Metal-encapsulated, gas-insulated high-voltage circuit-breaker
05/06/1998EP0840341A2 Circuit breaker
05/06/1998EP0840340A2 Circuit breaker
05/06/1998EP0840339A2 Vacuum interrupter with arc diffusing contact design
05/06/1998EP0839380A1 Circuit breaker with handle locking device
05/06/1998EP0789926B1 Device for mutually locking the actuation of at least two power switches
05/06/1998CN2280991Y Insulation tube for indoor high-voltage vacuum circuit breaker
05/06/1998CN2280990Y Single-arm type coaxial rotating load switch
05/06/1998CN1180916A Heat sink for contact stems of vacuum interrupter and vacuum interrupter therewith
05/05/1998US5747984 Switching component for detecting contact erosion
05/05/1998US5747766 Operating mechanism usable with a vacuum interrupter
05/05/1998US5747765 Vertical antitracking skirts
04/1998
04/30/1998WO1998018144A1 High voltage compressed gas-blast circuit-breaker
04/30/1998CA2269052A1 High voltage compressed gas-blast circuit-breaker
04/23/1998DE19654120C1 Earthing-/short-circuiting switch for electrical engineering
04/22/1998CN2279693Y High-voltage vacuum breaker
04/21/1998US5742017 Circuit-breaker provided with a closure resistance having an insertion assembly
04/21/1998US5742016 Electrical gas-blast switch
04/21/1998US5742015 Electric current switching apparatus with unitized removable contacts
04/15/1998EP0836209A2 Circuit breaker
04/15/1998EP0695458B1 Switching device
04/15/1998CN2278992Y High voltage breaker actuator
04/15/1998CN1038079C 断路器 Breaker
04/15/1998CA2217903A1 Heat sink for contact stems of a vacuum interrupter and a vacuum interrupter therewith
04/14/1998US5739495 Puffer-type circuit breaker and nozzle emitting gas with coaxial abutting plastic tube
04/14/1998US5739419 Apparatus for monitoring the vacuum of a vacuum switch
04/09/1998DE19713478C1 Vacuum switch tube e.g. for low-voltage switching
04/08/1998EP0834894A2 Electric current switching apparatus with unitized removable contacts
04/08/1998EP0763249B1 Power switch module
04/07/1998US5737162 Circuit breaking device
04/07/1998US5737160 Electrical switches comprising arrangement of mechanical switches and PCT device
04/07/1998US5736705 Grading ring insert assembly
04/07/1998US5735611 Bearing arrangement for an operating shaft
04/07/1998CA2020248C Three-pole, gas-insulated switch arrangement
04/02/1998DE19705095C1 Switching arc extinction method for HV power switch
03/1998
03/31/1998US5734140 Gas insulated high voltage circuit breaker including tulip contact assembly and insertion resistor
03/26/1998WO1998012721A1 Wheeled circuit interrupter provided with a blower-attenuator
03/26/1998DE19702822C1 HV circuit breaker with field electrode
03/26/1998DE19644624C1 High-voltage gas pressure switch with disparate field electrodes
03/26/1998DE19638753A1 Electromagnetically actuated multipole vacuum contactor
03/25/1998EP0831505A1 Circuit breaker with variable damping resistance
03/25/1998EP0831503A1 High-voltage circuit breaker with absorber
03/25/1998EP0830700A1 Insulating component for high-voltage equipment
03/25/1998EP0830699A1 Control method and device for a switchgear actuator
03/25/1998EP0782760B1 Vacuum switch contact arrangement
03/24/1998US5731561 Power switch with an ARC quenching device
03/24/1998US5731560 Operating mechanism of a circuit breaker with a locking system disengageable on a short circuit
03/24/1998US5729888 Method of making an integrated electrical system
03/19/1998WO1998011582A1 Encapsulated vacuum interrupter and method of making same
03/19/1998WO1998011581A1 Vertical antitracking skirts
03/19/1998WO1998011580A1 Grading ring insert assembly
03/19/1998DE19638948A1 Fahrbar angeordneter Leistungsschalter mit einem Ausblasdämpfer Mobile arranged breaker with a Ausblasdämpfer
03/18/1998EP0829894A1 Hydraulic drive
03/18/1998EP0829893A1 Hydraulic drive
03/18/1998EP0829892A1 Hydraulic drive
03/18/1998CN1176708A Stored-energy mechanism for a high-voltage circuit-breaker pole filled with an insulating gas
03/18/1998CN1176474A Switch device
03/17/1998US5728989 Insulation gas filled circuit breaker
03/17/1998US5728988 High-voltage power switch with a field electrode
03/12/1998DE19701766C1 Metal-encapsulated HV circuit breaker e.g. using sulphur hexafluoride gas insulation
03/12/1998DE19631817C1 SF¶6¶-gasisolierte Schaltanlage für Verteilernetze SF¶6¶-gas-insulated switchgear for distribution networks
03/11/1998EP0828272A2 Flat quench chamber
03/11/1998EP0763248B1 Insulating support for vacuum switch tubes
03/11/1998CN2276196Y Vacuum trigger gap controller
03/11/1998CN2276195Y Control mechanism for indoor high voltage vacuum circuit breaker
03/11/1998CN2276194Y Operating device for controlling indoor ac high voltage load switch
03/11/1998CN1037729C Apparatus for touching of conductor
03/11/1998CN1037725C Contact material for vacuum current breaker
03/10/1998US5726843 Current limiting circuit breaker
03/10/1998US5726407 Contact electrode for vacuum interrupter
03/10/1998US5726406 Electrical vacuum switch
03/05/1998WO1998009310A1 Load interrupter switch
03/04/1998EP0827246A2 Switchgear assembly
03/04/1998EP0827168A1 Power circuit-breaker
03/04/1998EP0746864A4 Solid state circuit breaker
03/04/1998CN1175071A Automatic arc-blowing high voltage breaker
03/04/1998CN1037645C Apparatus for gas insulating switch
03/03/1998US5723840 Gas-dielectric high-tension interrupter of the arc-puffer type
03/03/1998US5723839 Gas circuit breaker
03/03/1998US5723836 Operation mechanism of circuit breaker
02/1998
02/26/1998DE19708460C1 Switchgear switch position detection device
02/24/1998US5721412 Disconnector for a metal encapsulated, gas insulated high voltage switchgear
02/24/1998US5721406 Arc-resistant enclosure employing arc-quenching contact disconnect and method for avoiding arcing in the enclosure
02/19/1998WO1998007223A1 Power switch installation with disconnecting functions
02/18/1998EP0824264A2 Isolating and earthing switch for a metal-clad gas-insulated high voltage switch installation
1 ... 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 ... 186