| Patents for H02B 3 - Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear (3,442) |
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| 04/06/2011 | CN201789221U Large-sized transformer oil conservator oil storage device allowing accessory replacement without oil drainage |
| 04/06/2011 | CN201789220U Large-sized transformer vacuum oil extraction device allowing accessory replacement without oil drainage |
| 04/06/2011 | CN102005702A Mounting clamp for switch moving contact |
| 03/30/2011 | CN201781206U Three-chamber preassembled box type substation for wind power generation |
| 03/30/2011 | CN201781203U Disconnecting link overhaul hoisting device |
| 03/30/2011 | CN201781202U Novel tap switch assembling and disassembling device |
| 03/30/2011 | CN201781190U Switch cabinet body frame positioning mounting clamping fixture |
| 03/30/2011 | CN201776243U Power transformer equipment snow removal and deicing tool |
| 03/30/2011 | CN201776242U Snow sweeping tool for transformation equipment |
| 03/30/2011 | CN101997278A Bus uninterrupted isolator hoisting device |
| 03/30/2011 | CN101997277A Portable bus hydraulic punching machine and punching method |
| 03/30/2011 | CN101238621B Repacking device and power module therefor |
| 03/23/2011 | CN201774165U Equipment maintenance device |
| 03/23/2011 | CN201774164U Overhauling platform of circuit breaker |
| 03/23/2011 | CN201774163U Bearing guide rail for circuit breaker of overhauling platform |
| 03/23/2011 | CN201774162U Brake structure for circuit breaker overhauling platform |
| 03/23/2011 | CN201774161U Safe padlock mechanism for breaker maintenance platform lifting device |
| 03/23/2011 | CN201774160U Fuse holding tongs |
| 03/23/2011 | CN201773725U Adjusting structure for assembly line of isolating switch |
| 03/23/2011 | CN201767390U Insulation ladder multilayer retractable storage shelf for transformer substation |
| 03/16/2011 | CN201766297U Safety guarding device of secondary pressure plate |
| 03/16/2011 | CN201766296U Ribbed mounting plate capable of implementing anchor bolt conversion |
| 03/16/2011 | CN201766295U Portable disconnecting link finger contact assembly clip |
| 03/16/2011 | CN201765942U High end converter transformer valve side bushing auxiliary installation tool |
| 03/16/2011 | CN201762069U Insulated ladder for lifting maintenance platform |
| 03/02/2011 | CN201754476U Mobile lifting crane for indoor high-voltage electric appliances |
| 03/02/2011 | CN101982909A Snow and ice removing tool for transformer equipment |
| 03/02/2011 | CN101982908A Portable inspection ground wire device |
| 02/23/2011 | CN201752066U Center switch positioning plate tightening device |
| 02/16/2011 | CN201750071U Switch cabinet nuclear phase assisting device |
| 02/16/2011 | CN201750070U Dismantling bracket for mutual inductor in switch cubicle |
| 02/16/2011 | CN201750069U Switch operating rod provided with umbrella-shaped protective screening |
| 02/16/2011 | CN201750068U Fixing device of telegraph pole |
| 02/16/2011 | CN201750067U Special tool for assembling and disassembling insulating clapboard |
| 02/16/2011 | CN101976803A Isolating switch contact finger overhauling tool |
| 02/16/2011 | CN101972524A Substation isolating switch installation safety belt suspension device |
| 02/09/2011 | CN201742159U Online detection and operation and maintenance system for transformer station |
| 02/09/2011 | CN201742055U Device for trimming busses |
| 02/09/2011 | CN201742021U Notice board on power transmission line maintenance protection screen |
| 02/09/2011 | CN201742020U Vehicle-mounted distribution first-aid repair tool cabinet |
| 02/09/2011 | CN201742010U Hard combined shielding cover for replacing disconnecting link |
| 02/09/2011 | CN201742009U Mounting and adjusting device for isolation switch operation mechanism |
| 02/09/2011 | CN201742008U Simple overhauling and debugging platform of intermediate type handcart circuit breaker |
| 02/09/2011 | CN201742007U Maintenance tool for breaker energy storage cylinder |
| 02/09/2011 | CN201742006U Substation isolating switch overhaul operating platform |
| 02/09/2011 | CN201742005U Multi-purpose safety clamp for transformer station operation |
| 02/09/2011 | CN1943155B Apparatus and method for providing transmitting sequence estimation |
| 02/02/2011 | CN201733009U Insulation-isolation baffle for live-wire work |
| 02/02/2011 | CN201732997U Pinchers for mounting fuses |
| 02/02/2011 | CN201732641U Insulating baffle plate |
| 02/02/2011 | CN201728649U Electric intelligent tool kit system based on network management |
| 02/02/2011 | CN101964501A Assembly correcting device of circuit breaker barrel of gas insulating metal seal switch equipment |
| 01/26/2011 | CN201726060U Structure and tool for mounting fixed contact on handcart-type switch cabinet |
| 01/26/2011 | CN201726055U Switch cabinet installation moving device |
| 01/26/2011 | CN201726054U Installation rack for mobile electric panel cabinet |
| 01/26/2011 | CN201726053U Mounting tool for contact arm retaining ring of handcart type switch cabinet |
| 01/26/2011 | CN201726052U Plum-blossom contact installing and dismounting tool |
| 01/26/2011 | CN201726051U Special opening device for isolation baffle plate of transformer substation switch cabinet |
| 01/26/2011 | CN201726046U Box sealing weld clamp of switch cabinet |
| 01/26/2011 | CN101958517A Evacuation device for gas insulated metal sealing switch equipment |
| 01/26/2011 | CN101958515A Valve body overhauling frame for circuit breaker mechanism |
| 01/19/2011 | CN201717540U Special dustproof tent for assembling and cleaning porcelain bushing |
| 01/19/2011 | CN201717539U Novel secondary protective pliers for power transformation |
| 01/19/2011 | CN201717538U Framework oil seal installation and protection tooling for GIS |
| 01/19/2011 | CN201717537U Integral carrying device of bus in gaseous insulating metal closed switch device |
| 01/19/2011 | CN201711313U On-line purging device for transformer |
| 01/19/2011 | CN101953043A Control center |
| 01/19/2011 | CN101950931A Field dehumidifying method of transformer 110KV capacitive bushing |
| 01/19/2011 | CN101588024B Process for treating leaks on tops of substation outdoor electric isolating switch operation boxes |
| 01/12/2011 | CN201708465U Limit isolation insulation baffle plate |
| 01/12/2011 | CN201708464U Simple repair frame for isolating switch |
| 01/12/2011 | CN201708463U Pressure balanced expansion joint used for high-voltage switch device |
| 01/12/2011 | CN201708462U Supporting tool for butting conductors |
| 01/12/2011 | CN201708461U Short connected wire forgetting prevention device |
| 01/12/2011 | CN201708460U Conducting rod assembly tooling |
| 01/12/2011 | CN201708459U Trolley used for assembly of conducting rod |
| 01/12/2011 | CN101946380A Control center |
| 01/12/2011 | CN101946379A Control center |
| 01/12/2011 | CN101944428A Auxiliary installation tool of high-end converter transformer valve side sleeve |
| 01/05/2011 | CN201699335U Insulation sleeve |
| 01/05/2011 | CN201699334U Whole movable type air cushion device |
| 01/05/2011 | CN201698978U Insulated lock lever |
| 01/05/2011 | CN101938093A Hard combined mask for changing disconnector |
| 01/05/2011 | CN101938092A Knife switch overhaul platform |
| 01/05/2011 | CN101938091A Insulated safety belt hanging rod |
| 01/05/2011 | CN101521359B Special bracket structure for detaching laps of transformer casings |
| 12/29/2010 | CN201690145U Maintenance working table of isolating switch |
| 12/29/2010 | CN201690144U Closing coil removal device |
| 12/29/2010 | CN201690143U Disassembling tool for return spring of isolating switch |
| 12/29/2010 | CN201690142U Patrol and operation cue card of transformer station |
| 12/29/2010 | CN201690141U Rainproof link bar |
| 12/29/2010 | CN201690140U Portable special tool for mounting mechanism case |
| 12/29/2010 | CN201690139U Transfer trolley for switch cabinet handcarts |
| 12/29/2010 | CN101931176A Ribbed mounting plate capable of realizing conversion of foundation bolt |
| 12/29/2010 | CN101931175A Method for replacing accessory of large transformer without discharging oil by vacuum oil extraction |
| 12/29/2010 | CN101931174A Method for realizing changing accessories of large transformer without discharging oil by utilizing oil conservator to conserve oil |
| 12/29/2010 | CN101931173A Mutual inductor disassembly-assembly bracket in switch cabinet |
| 12/29/2010 | CN101931172A Electric debugging method of dry-quenching power distribution system |
| 12/29/2010 | CN101931171A Insulation device used for examining and repairing power disconnecting switch |
| 12/22/2010 | CN201682189U Negative pressure pump for replacing transformer sealing washer without oil |