| Patents for H02B 3 - Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear (3,442) | 
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| 09/12/2012 | CN102664359A Installation propulsion mechanism of bottom plate component of electromagnetic starter | 
| 09/12/2012 | CN102664358A Live replacement method for static contact of 220 kV flexible busbar | 
| 09/11/2012 | US8261433 Portable racking tool for electric equipment replacement and method for replacing electrical components | 
| 09/05/2012 | CN202423926U Transformer substation polling robot gesture driving system based on electronic map | 
| 09/05/2012 | CN202423925U Contact finger replacement device for isolating switch | 
| 09/05/2012 | CN202423924U Anti-explosion operating handle for low-voltage air break switch | 
| 09/05/2012 | CN202423923U Special replacing tool for tubular bus post insulator | 
| 09/05/2012 | CN202423922U Safety insulation device for fixed contact seat of circuit breaker in high voltage switch cabinet | 
| 09/05/2012 | CN202423921U Novel circuit breaker transport overhauling car | 
| 09/05/2012 | CN202423920U Multi-dimensional installation equipment for insulation switch mechanism case | 
| 09/05/2012 | CN202423919U Quick air-filling device with vacuum switch | 
| 09/05/2012 | CN202423918U Isolating switch maintenance car | 
| 09/05/2012 | CN202423917U Electrified nuclear-phase auxiliary device for switch cabinet | 
| 09/05/2012 | CN202423916U T contact detachable clip for 10 kilovolt special transformer temporary power utilization | 
| 09/05/2012 | CN202423915U Replacing equipment for 10 KV switch cabinet closing coil | 
| 09/05/2012 | CN202423914U Special V-shaped tool for overhauling isolation switch contact terminal | 
| 09/05/2012 | CN202423913U Special X-shaped overhaul tool for isolating switch contacts | 
| 09/05/2012 | CN202423912U Alignment device for heavy module of high-voltage distribution switch cabinet | 
| 09/05/2012 | CN202423911U Spring disassembling tool for rotating contact of GW4 disconnecting link | 
| 09/05/2012 | CN202423910U Device specially used for maintaining transformer | 
| 09/05/2012 | CN202423909U Auxiliary suspending device for assembling switch cabinet | 
| 09/05/2012 | CN202423908U Power system outdoor operator human body induced electricity eliminating device | 
| 09/05/2012 | CN202423907U Wire cutting device for power distributing cabinet | 
| 09/05/2012 | CN202423906U Overhaul platform for isolating switch | 
| 09/05/2012 | CN202423905U Grounding wire storage device | 
| 09/05/2012 | CN202423904U Hot-line work air charging system | 
| 09/05/2012 | CN202423903U Electric appliance lifting device of high-voltage power distribution cabinet | 
| 09/05/2012 | CN202423902U Automatic heating and gas-filling device for sulfur hexafluoride gas cylinder | 
| 09/05/2012 | CN202423901U Intelligent and inflatable automatic lifting overhauling stand for power transformation equipment | 
| 09/05/2012 | CN202423900U Grounding ring for maintenance of drop-out fuse | 
| 09/05/2012 | CN202423899U Telescopic transfer trolley of switch devices | 
| 09/05/2012 | CN202423898U Maintenance workbench | 
| 09/05/2012 | CN202423897U High-voltage cabinet maintenance lift truck for power substation | 
| 09/05/2012 | CN202423844U Integral type mobile power supply device | 
| 09/05/2012 | CN202423590U 750kV high-reliability grounding wire device | 
| 09/05/2012 | CN202422924U Oil injection tool for transformer | 
| 09/05/2012 | CN202414952U Auxiliary gin pole for hoisting and unloading | 
| 09/05/2012 | CN102655311A KYN-28 type electrical test auxiliary device for high voltage switch cabinet | 
| 09/05/2012 | CN101938093B Hard combined mask for changing disconnector | 
| 09/05/2012 | CN101931172B Electric debugging method of dry-quenching power distribution system | 
| 08/29/2012 | EP2491466A1 Diagnosis and maintenance device for a switchgear assembly and corresponding switchgear assembly | 
| 08/29/2012 | CN202405684U Cable tank device | 
| 08/29/2012 | CN202405663U Multifunctional lifting and positioning device for mutual inductor | 
| 08/29/2012 | CN202405662U Manual operating apparatus for switch device mechanism | 
| 08/29/2012 | CN202405661U Balance installer for mutual inductor | 
| 08/29/2012 | CN202405660U Device for replacing and taking opening coil of high-voltage switch cabinet | 
| 08/29/2012 | CN202405659U Hydraulic replacing device for closing coils of high-voltage switch cabinets | 
| 08/29/2012 | CN202405658U Insulating rod with lighting device | 
| 08/29/2012 | CN202405657U Telescopic insulation ranging rod | 
| 08/29/2012 | CN202405656U Device used for maintenance of Beringer valves of transformer substation circuit breakers | 
| 08/29/2012 | CN202405655U Safety isolation device for overhauling valve group of convertor station | 
| 08/29/2012 | CN202405654U FC (fluorocarbon) gas and liquid injection and recovery device for evaporative cooling power transformer | 
| 08/29/2012 | CN202405653U Centrally positioned high-voltage cabinet handcart transfer trolley | 
| 08/29/2012 | CN102651268A Ground oil-injecting device of current transformer | 
| 08/22/2012 | CN202395352U Valve detection vehicle for installing circuit breaker | 
| 08/22/2012 | CN202395351U Current loop sealing device with automatic detector | 
| 08/22/2012 | CN202395350U Portable single cell replacing instrument | 
| 08/22/2012 | CN202395349U Overhaul working platform for isolating switch | 
| 08/22/2012 | CN202395348U Electric power screen cabinet installing transferring device | 
| 08/22/2012 | CN202395347U Ventilation and overhaul device for buried substation cellar | 
| 08/22/2012 | CN202395346U Wiring molding box of shaped switch cabinet | 
| 08/22/2012 | CN202395345U 66KV novel knife-switch button contact mounting device | 
| 08/22/2012 | CN202395328U Novel centrally-installed high voltage switch cabinet | 
| 08/22/2012 | CN202395316U Quick locating plumb | 
| 08/22/2012 | CN202390088U 220kv adjustable triangular holding pole | 
| 08/22/2012 | CN102646937A Electricity testing trolley for middle-set type switch cabinet | 
| 08/15/2012 | CN202384675U Assembling tool for current transformer | 
| 08/15/2012 | CN202384654U GIS (Geographic Information System) bus barrel device capable of horizontally moving | 
| 08/15/2012 | CN202384645U Moving box-type link group device | 
| 08/15/2012 | CN102638010A Universal 66-kilovolt disconnecting switch binding rod | 
| 08/15/2012 | CN102638009A Operation method for first-aid repair of 630A low-tension outgoing lines by by-pass switch | 
| 08/15/2012 | CN102638008A 10KV foreign matter cutting operational rod | 
| 08/08/2012 | CN202373924U Lock-on connection for cable of control cabinet | 
| 08/08/2012 | CN202373882U Busbar punching support | 
| 08/08/2012 | CN202373881U Bus-bar punching bracket | 
| 08/08/2012 | CN202373880U Multifunctional switch maintenance platform | 
| 08/08/2012 | CN202373879U Hole distance localizer for copper bar and wire clamp | 
| 08/08/2012 | CN202373878U Test maintenance vehicle | 
| 08/08/2012 | CN202373877U H-shaped column horizontally-opened high-voltage isolating switch installation rack | 
| 08/08/2012 | CN202373876U Self-moving device for power transformation and distribution equipment on working surface | 
| 08/08/2012 | CN202373875U Omnidirectional tubular bus sliding support frame | 
| 08/08/2012 | CN102629740A Nuclear phase handcart with adjustable width | 
| 08/08/2012 | CN102629737A Box transformer plate and lifting handling method thereof | 
| 08/02/2012 | WO2012100508A1 A mounting plate support and a mounting method thereof | 
| 08/01/2012 | CN202363778U Core hoisting tool for on-load tap-changer of transformer | 
| 08/01/2012 | CN202363777U Multifunctional operating tool | 
| 08/01/2012 | CN202363776U Maintenance protection system for transformer of wind power generator | 
| 08/01/2012 | CN202363775U Movable insulating two-step stool | 
| 08/01/2012 | CN202363774U Magnetic force suspension line weight tool | 
| 08/01/2012 | CN202363773U Adjustable disassembly-assembly plate cabinet conveyor device of transformer substation | 
| 08/01/2012 | CN202363772U Wall-bushing current transformer installation equipment | 
| 08/01/2012 | CN202363771U High-low pressure control cabinet dehumidifier | 
| 08/01/2012 | CN202363770U Distribution box shell welding holder | 
| 08/01/2012 | CN202363769U Work safety belt hanging buckle support for transformer station | 
| 08/01/2012 | CN202363768U Switching-on fuse of high-voltage switch cabinet of 35kV integrated automation substation | 
| 08/01/2012 | CN202363767U Apparatus for sticking temperature indicating sheet in hot-line way | 
| 08/01/2012 | CN202363766U Mounting structure for placement of box-type transformer substation | 
| 08/01/2012 | CN202363765U Complete set of power distribution cabinet frame connection fixing block | 
| 08/01/2012 | CN202363749U Installing side beam used in low voltage power distribution cabinet | 
| 08/01/2012 | CN102623910A Reliability-based maintenance decision method for switch equipment |