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)
12/2003
12/03/2003EP1367681A1 Vacuum switch unit and switch gear
12/03/2003EP1367619A2 Vacuum valve
12/03/2003EP1367616A1 Electrical switching device
12/03/2003EP1367039A1 Ceramic member for bonding, process for producing the same, vacuum switch and vacuum vessel
12/03/2003EP1366501A1 Low-voltage circuit breaker with an electric arc extinction system
12/03/2003EP1366499A1 Insulating material for over-moulding on medium and high voltage appliances, and medium and high voltage electric appliances using same
12/03/2003EP1292960B1 Method for opening the contact gap of a vacuum interrupter
12/03/2003CN2590157Y Linked operating mechanism for high-pressure isolating vacuum onload switch
12/03/2003CN2590149Y Rotating-disc operating device for electrical switch cabinet
12/03/2003CN1129928C Vacuum switch tube
12/02/2003US6657150 Shorting switch and system to eliminate arcing faults in power distribution equipment
12/02/2003US6657149 Vacuum interrupter with a vapor shield
12/02/2003CA2268575C Circuit breaker
11/2003
11/27/2003WO2003098760A1 Gas-insulated electrical installation provided with a device for dissipating energy produced by an electric arc
11/26/2003CN1459026A Re-locatable partial discharge transducer head
11/26/2003CN1129159C Vacuum interrupter chamber with ring-shaped isolator
11/25/2003US6653918 Operating mechanism for autorecloser with series disconnector
11/25/2003US6651483 Low leak gas density monitor assembly
11/20/2003WO2003096504A1 Switching installation provided with an electrically insulating barrier
11/20/2003WO2003096366A1 Electric switching device with a cooling device
11/20/2003WO2003096365A1 Interrupter unit for a high-voltage power switch
11/20/2003WO2003096364A1 Cup-shaped switch contact provided with metal vapour shield
11/20/2003WO2003096363A2 Drive rod for switch
11/20/2003US20030214307 Device for detecting partial discharge in power equipment using radiated electromagnetic wave
11/20/2003US20030213774 Hydraulic pressure actuating apparatus for circuit breaker
11/20/2003US20030213681 Operating arrangement for mechanism
11/20/2003CA2485161A1 Switching installation provided with an electrically insulating barrier
11/19/2003EP1363304A1 Opening switch with explosive wire and method of manufacture
11/19/2003CN2587053Y Vacuum extinction chamber with stabilized performance
11/19/2003CN1457065A Circuit breaker forced extinguisher
11/19/2003CN1128459C Electric switch equipment having contact part with groove
11/19/2003CN1128458C 开关 Switch
11/18/2003US6649856 Glazed ceramic article, metal and ceramic assembly having glazed ceramic article and vacuum switch having metal and ceramic assembly
11/18/2003US6649855 Contact arrangement for vacuum interrupter and vacuum interrupter using the contact arrangement
11/18/2003US6649854 Vacuum contactor with movable guide element
11/18/2003US6649853 Combined type fluid pressure driving apparatus
11/13/2003DE10213070C1 Elektrisches Schaltgerät mit einem an einem Stiel angeordneten Kontaktstück Electrical switching device with a handle is arranged on a contact piece
11/12/2003EP1360710A1 Low-voltage power switch with a bearing arrangement for a switch shaft
11/12/2003CN1455976A Circuit breakers
11/12/2003CN1455427A Outdoor high voltage vacuum circuit breaker
11/11/2003US6646850 High-voltage power breaker having an outlet flow channel
11/11/2003US6646361 Method of synchronizing the switching of a circuit breaker with voltage waveform
11/11/2003CA2344256C Arc blowing switch with reduced gas compression interrupt chamber and alternating piston movement
11/05/2003EP1359597A2 Circuit breaker
11/05/2003CN2585398Y Mechanical releasing device for circuit breaker
11/05/2003CN2585389Y Electromagnetic operating mechanism
11/05/2003CN1127110C Through-wall isolated vacuum load switch
10/2003
10/30/2003US20030202308 Single phase control and protection system of high voltage with dry insulation
10/30/2003US20030201250 Gas-insulated switch
10/29/2003CN2583800Y Longitudinal rotary indoor vacuum circuit breaker
10/29/2003CN2583799Y Sulfur hexafluoride fuse tripgear
10/29/2003CN1452802A Locking device for withdrawable circuit-breakers
10/29/2003CN1452776A Method for interrupting short circuit in generator-near zone and device for carrying out said method
10/29/2003CN1452286A Pull-out breaker
10/29/2003CN1452198A 真空开关 Vacuum switch
10/29/2003CN1452197A 真空开关 Vacuum switch
10/29/2003CN1452194A Hybrid DC electromagnetic contactor
10/29/2003CN1126132C Circuit breaker
10/29/2003CN1125978C In-line detection method for vacuum level of discharge type vacuum arc quenching chamber
10/28/2003US6639169 Contact for vacuum interrupter and vacuum interrupter using the contact
10/23/2003WO2003088291A1 Cermic tube for vacuum circuit breaker
10/23/2003WO2003088290A1 Vacuum valve
10/23/2003CA2480793A1 Cermic tube for vacuum circuit breaker
10/22/2003EP1355337A2 Vacuum switch
10/22/2003EP1355336A2 Vacuum switch
10/22/2003EP1212768B1 Device for measuring the internal pressure and conditioning the voltage and current of vacuum interrupters and a method therefor
10/22/2003EP0970554B1 Process and arrangement for selective network monitoring for switchgear
10/22/2003CN2582156Y Switching spacing protector
10/22/2003CN2582154Y Scroll spring energy storage operating mechanism for high-voltage circuit breaker
10/22/2003CN2582143Y Motor operating protector
10/22/2003CN2582142Y Hydraulic spring operating mechanism
10/22/2003CN1450578A Method for mains-synchronous switching of circuit breakers, and apparatus for carrying out this method
10/22/2003CN1125522C Electrical interruption device comprising communication module
10/22/2003CN1125475C Heat sink for contact stems of vacuum interrupter and vacuum interrupter therewith
10/21/2003US6635841 Solder layer and a ceramic member are held in contact with each other at an annular area extending along an entire circumference of an axial end surface of the ceramic member
10/16/2003US20030193770 Hybrid DC electromagnetic contactor
10/16/2003US20030192860 Vacuum switch
10/15/2003EP1353425A1 Drawer-type circuit breaker
10/15/2003EP1352407A1 Vacuum circuit-breaker and a method for controlling the same
10/15/2003EP0944914B1 Low pressure gas discharge switch
10/15/2003CN1448973A Vacuum arc-extinguishing chamber
10/15/2003CN1124628C Power switch
10/09/2003US20030189378 Method for mains-synchronous switching of circuit breakers, and an apparatus for carrying out this method
10/08/2003EP1351267A1 Method and apparatus for a network synchronized switching of a power switch
10/08/2003CN2578957Y Ultrahigh voltage vacuum arc-chute
10/08/2003CN2578956Y Direct-actuated three position switch
10/08/2003CN2578839Y GIS quick instantaneous voltage measuring sensor
10/02/2003WO2003081738A1 Arc-resistant switchgear enclosure
10/02/2003WO2003081622A1 Getter device for vacuum circuit breaker
10/02/2003US20030184945 Circuit breaker with capacitor discharge system
10/02/2003CA2479221A1 Getter device for vacuum circuit breaker
10/01/2003CN2577429Y Permanent-magnetic vacuum circuit breaker
10/01/2003CN2577428Y Corrugated-pipe-exposed vacuum arc-chutes
10/01/2003CN2577427Y Combined electric appliance of high-voltage circuit breaker-isolating switch
10/01/2003CN1446366A Method and device for prediction of zero-crossing of alternating current
10/01/2003CN1446365A Method and apparatus for controlling electric switching device
10/01/2003CN1445899A 能量分配网 Energy distribution network
10/01/2003CN1445807A High-pressure circuit breaker containing hot-blast chamber pressure relief valve
10/01/2003CN1445806A Collector and gas circuit breaker
10/01/2003CN1445802A Arc extinguishing equipment for breaker with plastic shell
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