Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means
Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099)
12/2012
12/26/2012CN102842454A Safety device of long and short pull rod crank arms
12/25/2012US8339144 Test fixture for testing positioning of connector
12/20/2012WO2012171855A1 Outdoor switching device
12/20/2012WO2012171570A1 A switching device and a switchgear
12/20/2012WO2012171569A1 A switching device and a switchgear
12/20/2012DE102011077768A1 Freiluftschaltgerät Outdoor switching equipment
12/19/2012CN202616128U Fixed contact of indoor high-voltage isolating switch
12/19/2012CN202616127U Centring device of three-position switch of gas-insulated metal-enclosed switchgear
12/19/2012CN202616126U Novel outdoor AC high-voltage isolation switch
12/19/2012CN102832074A Earthing switch for direct current valve hall
12/19/2012CN102832073A Grounding switch for direct-current valve hall and grounding conducting rod mechanism of grounding switch
12/19/2012CN102832072A Outdoor AC high-voltage isolating switch
12/19/2012CN101459009B Switch device for fast disconnecting closed load isolating switch
12/13/2012WO2012169346A1 Switch and switch gear
12/13/2012WO2012169084A1 Operating mechanism
12/13/2012DE102011102957B4 Trennschalter für Oberleitungen Isolating switch for overhead lines
12/12/2012CN202601493U Outdoor high-voltage isolating switch
12/12/2012CN202601492U Locking device of high-voltage isolating switch operating mechanism
12/12/2012CN202601491U Outdoor high-voltage isolating switch
12/12/2012CN202601490U Heat dissipating high-voltage directly operated type isolating switch
12/12/2012CN202601489U Single-phase isolating switch on outdoor pillar
12/12/2012CN202601488U Intelligent high-voltage directly operated type isolating switch
12/06/2012WO2012166437A2 Grounding switch
12/06/2012WO2012163272A1 Male contact and break component for isolator switch
12/06/2012US20120306510 Method and System for Assessing Insulation Deterioration in Live Underground Power Cables
12/06/2012CA2837078A1 Grounding switch
12/05/2012CN202585228U Intelligent high pressure outdoor switch
12/05/2012CN202585227U Operation mechanism of high-voltage electrical appliance load switch
12/05/2012CN202585226U Switch electrode of AC (Alternating Current) high-voltage load switch
12/05/2012CN102812531A Power Transfer Switch
12/05/2012CN101763977B Driving mechanism for isolating switch
12/04/2012US8324909 Video signal analyzer
11/2012
11/29/2012US20120300358 Grounding switch
11/29/2012DE102011102957A1 Trennschalter für Oberleitungen Isolating switch for overhead lines
11/28/2012EP2526559A1 Metal-encapsulated, gas-insulated combined disconnecting and grounding switch
11/28/2012CN202564123U Mining explosion-proof dual-power high-voltage load switch structure
11/28/2012CN202564122U Novel main disconnecting link device of low impedance and high voltage isolation switch
11/28/2012CN202564121U Knife device of low-impedance high-voltage isolating switch
11/28/2012CN202564120U Novel main disconnecting link device of isolation switch
11/28/2012CN202564119U Main disconnecting link device of low impedance and high voltage isolation switch
11/28/2012CN202564118U Disconnecting link conjunction box device of isolation switch
11/28/2012CN202564117U Disconnecting link terminal box device of low impedance high-voltage isolation switch
11/28/2012CN202564116U Grounding disconnecting link device of high voltage isolation switch
11/28/2012CN202564115U Main disconnecting link device of novel low impedance and high voltage isolation switch
11/28/2012CN202564114U Bypass isolation switch for 1100kV extra-high voltage series compensation
11/28/2012CN102804311A High-voltage arrangement
11/28/2012CN102800521A High-voltage isolation electric switch device
11/28/2012CN102064037B Combined type ground switch
11/28/2012CN101609762B Blade-shaped circuit breaker
11/21/2012CN202549692U Interlocking device for high-voltage switch equipment
11/21/2012CN202549691U 10 kV isolation switch insulating cover
11/21/2012CN202549690U Arrangement construction member for disconnecting link
11/21/2012CN202549689U Connecting mechanism of quick replaceable isolation switch
11/21/2012CN202549688U Three-phase transmission mechanism for 550kV isolating switch
11/21/2012CN202549687U Isolating switch assembly
11/21/2012CN101944454B Isolating switch fuse unit with protection cover
11/21/2012CN101359795B Power-circuit breaking device
11/15/2012WO2012151705A1 High-voltage disconnection knife for outdoor use with air insulation
11/15/2012CA2835145A1 High-voltage disconnection knife for outdoor use with air insulation
11/14/2012CN202534579U Fuse auxiliary grounding switch
11/14/2012CN202534578U Switch cabinet isolating switch and grounding switch interlocking device
11/14/2012CN202534577U Outdoor high-voltage alternating-current isolating switch
11/14/2012CN202534576U A high voltage switch having three phase bodies distributed in a triangular shape and a high voltage switch cabinet
11/14/2012CN102128955B Auxiliary safety measure device for high-voltage test
11/14/2012CN101425420B Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet
11/13/2012US8310246 Continuity testing apparatus and continuity testing method including open/short detection circuit
11/07/2012CN202524021U High-voltage mobile type DC isolation switch
11/07/2012CN202523620U Support for disconnecting switch for wild goose-wing cross beam
11/07/2012CN202523619U 10kv prevention isolation switch heating apparatus
11/07/2012CN202523618U Manual operation mechanism of two-position disconnector
11/07/2012CN202523598U Interlocking device of isolating switch mechanism
11/07/2012CN102768917A Quick operation mechanism of clapping type grounding switch
11/07/2012CN101819901B Driving device for two-step action type ground switch
11/06/2012US8305179 Oil immersed electrical apparatus
11/01/2012WO2012104880A8 Actuation control and control method, particularly for electrical disconnectors
10/2012
10/31/2012EP2518750A1 Scalable medium voltage latching earthing switch
10/31/2012CN202513071U Four-position switch of composite apparatus
10/31/2012CN102763185A Power source circuit breaker
10/25/2012DE102011007900A1 Spannungswandler für eine Schaltanlage Voltage converter for switchgear
10/24/2012EP2513934A1 Shielded high- or medium-voltage electrical equipment having improved mounting and including rotation shaft and movable contact driven by said shaft, and use in three-phase stations
10/24/2012CN202502955U Circuit breaker device
10/24/2012CN202502954U Circuit breaker device provided with disconnecting switch
10/24/2012CN202502934U Operating mechanism of three-station switch
10/24/2012CN202502933U Outdoor high-voltage direct-acting isolation switch
10/24/2012CN102751129A Cam operating mechanism with self-locking stations and operating method thereof
10/24/2012CN102751128A Indoor high-voltage isolating switch interlocking device
10/24/2012CN102751127A Isolating/grounding switch transmission device
10/18/2012US20120261384 Interrupter with voltage sensing on both load and source sides
10/17/2012CN202495380U Static contact of indoor high voltage alternating-current grounding switch
10/17/2012CN102054618B Three-phase common-box type high-speed grounding switching device
10/16/2012US8289031 Apparatus for measuring insulation characteristics of coated steel sheet
10/11/2012US20120256753 Arc fault circuit interrupter tester
10/10/2012CN202487480U Novel isolation switch operating mechanism
10/10/2012CN202487479U Recloser electromagnetic drive device
10/10/2012CN202487478U Special device for defect treatment of disconnecting switch operation mechanisms
10/10/2012CN202487477U Debugging-free grounding switch operating system
10/10/2012CN102723223A Driving device for switch operation interlocking mechanism
10/10/2012CN102723222A Fixed high-voltage switch cabinet interlocking mechanism
10/10/2012CN101800135B Electric mechanism of isolating switch and operating method
10/10/2012CN101770888B Spring operating device of high-voltage load switch
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