CN104051979A - Joint type 66 kV tubular busbar electrified disconnection and connection insulation device and method - Google Patents
Joint type 66 kV tubular busbar electrified disconnection and connection insulation device and method Download PDFInfo
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- CN104051979A CN104051979A CN201410247935.XA CN201410247935A CN104051979A CN 104051979 A CN104051979 A CN 104051979A CN 201410247935 A CN201410247935 A CN 201410247935A CN 104051979 A CN104051979 A CN 104051979A
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Abstract
The invention relates to a joint type 66 kV tubular busbar electrified disconnection and connection insulation device and method. The device comprises a derrick ladder, an operation platform, a platform support, a work ladder and a supporting ladder. The work ladder and the operation platform are hinged, the supporting ladder and the platform support are hinged, the platform support and the operation platform are connected through hinges, the derrick ladder is fixed between the operation platform and the platform support, the derrick ladder and the work ladder are hinged through connection rods, the upper portion of the device is provided with an insulating limiting screen, the lower portions of the device are connected through limiting belt ropes, and length adjusting mechanisms are arranged in ladder legs of the device. The method includes the steps that an electrified work safety distance of the corresponding voltage level is kept on one side of a wiring terminal under a tubular busbar through the device, and a drainage wire is disconnected and connected in an electrified mode. By means of the device and the method, the difficult problem that the tubular busbar can not be disconnected or connected on site is solved, a novel tubular busbar on-site electrified work mode is provided, operation is safe, convenient and quick, reliability of power supply of a power grid is improved, and personal safety and safety of electric equipment are guaranteed.
Description
Technical field
The present invention relates to 66kV tube type bus hotline maintenance field, relate in particular to the charged disconnecting of a kind of articulated type 66kV tube type bus and draw seal and method.
Background technology
Tube type bus power distribution equipment abroad application in substations is very general, but at home due to the impact of price factor, applies limitedly, and that tube type bus has is attractive in appearance, floor space is little, framework is simple and clear, it is clear to arrange, through-current capacity large, discharge inception voltage high.In recent years, along with the raising of overall national strength, the bus in the each electric company 66kV of newly-built transformer station equipment place under Northeast China Power Grid, substantially be all the operational mode that adopts tube type bus to arrange, and also will increase with some every year, because floor space is little, operating equipment loop spacing distance also reduces thereupon.
Because tube type bus phase spacing is less, cause the current charged operation technique of the soft bus of the 66kV of transformer station, can not meet the charged breaking and connecting of tube type bus and draw requirement.Tube type bus, in the extensive application of transformer station, has brought new challenge to transformer station's live line working technology, is one of factor of the existing live line working technical development of restriction.Pipe, the charged operation area of soft bus are not: on soft bus, insulating tools such as can adopting hanging ladder, rope ladder, vertical ladder, extension ladder is drawn in charged disconnecting, ladder head directly hangs on bus, form equipotential personnel and climb passage to setting, complete live line working operation item.Tube type bus is because being aluminum pipe metal material, technical standard requires pipe bus any surface finish smooth, flawless, wrinkle, field trash, distortion and twisted phenomena, its flexibility: m/L<2.0mm, aligning spiral trace: the degree of depth is no more than 0.5mm, therefore above-mentioned insulating tool ladder head can not hang on bus, more can not carry seal itself, disconnecting drainage thread, the pulling force that the weight sum such as equipotential electrician produces and drag power, tube type bus phase spacing is less, equal potential working personnel compare soft bus phase spacing and reduce, risk probability and increasing, charged disconnected in this case, connect and draw, there is larger potential safety hazard, easily there is personal injury and bus obstacle accident.
At present, if when the 66kV of a transformer station tube type bus line disconnecting switch occurs needing upkeep operation, can only turn on-load, load on the current 66kV of transformer station bus is transferred to other transformer stations, what can not turn on-load will be forced to power failure, and its working procedure is numerous and diverse, and coordinative operation unit is numerous, increase burden to electrical network, cause the non-full mode operation of electrical network.Be forced in addition have a power failure and will cause great economic loss and social influence.
For improving existing live line working technology, develop the disconnecting of articulated type 66kV tube type bus and drawn seal, thereby solved the difficult problem running in current production and operation, have important practical significance and profound influence.
Summary of the invention
Technical problem to be solved by this invention is to provide the charged disconnecting of a kind of articulated type 66kV tube type bus and draws seal and method, has realized at the interval, loop of operational outfit and has carried out the operations such as charged breaking and connecting drainage thread.Solve tube type bus and can not carry out the difficult problem that operation is drawn in on-the-spot charged breaking and connecting.
For achieving the above object, the present invention realizes by the following technical solutions:
Seal is drawn in the charged disconnecting of a kind of articulated type 66kV tube type bus, comprises contracted-pole ladder, operating platform, platform support, operating ladder and supporting ladder;
Operating ladder and supporting ladder are made up of upper and lower two parts respectively, operating ladder top and operating ladder bottom, supporting ladder top and supporting ladder bottom are connected and fixed by ladder cover and pin rod, operating ladder top and operating platform are hinged, supporting ladder top and platform support are hinged, platform support and operating platform are by chain connection, and establish tight locking button, contracted-pole ladder is fixed between operating platform and platform support, contracted-pole ladder and operating ladder top are by rod hinge connection, on contracted-pole ladder and operating ladder top, establish respectively support bar, between contracted-pole ladder and operating ladder top and support bar, be provided with the spacing net of insulation, contracted-pole ladder inner side is respectively equipped with link, contracted-pole ladder is provided with safety collar and lock tube, U-shaped shielding conductor chuck hangs in lock tube, between U-shaped shielding wire clamp and safety collar, there is shielding conductor to be connected, O type ring is fixed respectively at operating platform and angle, platform support outer end, operating ladder bottom is connected by spacing band rope with supporting ladder bottom, in each foot of ladder of operating ladder bottom and supporting ladder bottom, length adjustment mechanism is set.
Seal is drawn in the described charged disconnecting of a kind of articulated type 66kV tube type bus, and each parts is made by insulation material glass fibre drawing and extruding section bar.
Described length adjustment mechanism is made up of metal shell, shank of bolt, ratchet, handle, footing, and shank of bolt is arranged in metal shell, and footing and shank of bolt are hinged, and handle is connected with ratchet, and ratchet is arranged on metal shell middle part.
Seal method of operation is drawn in the charged disconnecting of a kind of articulated type 66kV tube type bus, adopt said apparatus to tube type bus vertical lower binding post side one side, keep relevant voltage grade live-working safety distance, charged disconnecting drainage thread, concrete operation step is as follows:
1) at the scene on ground, folding said apparatus top and the bottom being assembled, is insulation tricing line, hangs extinguishing arc coaster and insulation pull rope.
2) device assembling is lifted under the tube type bus setting of operation phase, handled device is stood on to ground by ground electrician.
3) operate device is launched by ground electrician, form job platform.
4) device is ajusted, made device central vertical in tube type bus center line, adjusting device stationarity, the tricing line that will insulate is fixed.
5) check and confirm that insulation tricing line is firm, device is fixed well, equipotential electrician's screening clothing test passes, and on-the-spot wind speed is not more than 5 grades, and humidity is not more than 80%.
6) equipotential electrician protect ready rear along device climb to device operating platform, ensure electrified body over the ground safe distance be not less than 0.7 meter, ensure combination safe distance be not less than 0.8 meter, ensure be not less than 0.9 meter with adjacent phase safe distance.
7) equipotential electrician fixes special waist rope, and shielding conductor folder is fixed on tube type bus, realizes equipotential electrician shielding and all presses.
8) equipotential electrician is by one end of insulation pull rope with fixing by cutting off drainage wire terminal board bottom, and the pull rope other end is controlled by ground electrician, and equipotential electrician removes terminal board bolt.
9) ground staff's monitoring, guarantees that equipotential electrician operation does not exceed the spacing net of insulation, ensures that equipotential electrician is not less than 0.9 meter with adjacent phase tube type bus safe distance.
10) remove after terminal board bolt, ground electrician has coordinated whereabouts drainage thread work.
11) equipotential electrician shifts current potential, ensures that health exposed part and electrified body are less than 0.2 meter of distance, unties special waist rope, returns to ground along operating ladder.
12) step 4 repeating in cutting off drainage wire step arrives step 14, until three-phase drainage thread is all disconnected.
13) connect drainage thread contrary with the phase place step of cutting off drainage wire.
14) after on-the-spot whole operation completes, remove apparatus for work, finisher's utensil, withdraws scene, power cut-off.
Compared with prior art, the invention has the beneficial effects as follows:
Device of the present invention is collapsible, detachable, is convenient to transport and preserves, and the governor motion capable of regulating foot of ladder length of foot of ladder, can adapt to different operating environments, and spacing net can limit operator and remain on Area Of Safe Operation.The invention solves the operations such as the charged breaking and connecting drainage thread of tube type bus does not have the problem of operating platform, provide a kind of new tube type bus on-the-spot live line working mode, easy-to-operate is quick, improves mains supply reliability, ensures the person and electric equipment safety.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the folding schematic diagram of the present invention.
Fig. 3 is first half structural representation of the present invention.
Fig. 4 is length adjustment mechanism structural representation of the present invention.
Fig. 5 is the U-shaped shielding wire clamp of the present invention schematic diagram.
In figure: the spacing rope band 22-of 1-contracted-pole ladder 2-operating platform 3-platform support 4-operating ladder top 6-supporting ladder top, the 5-operating ladder bottom 7-supporting ladder bottom 8-ladder cover 9-pin rod 10-hinge 11-tight locking button 12-connecting rod 13-support bar spacing net 15-link 16-lock tube 17-safety collar 18-U type shielding wire clamp 19-shielding conductor 20-O type ring 21-of 14-insulation length adjustment mechanism 23-insulation tricing line 24-earth anchor 30-metal shell 31-shank of bolt 32-ratchet 33-handle 34-footing
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated:
As shown in Figure 1, seal is drawn in the charged disconnecting of a kind of articulated type 66kV tube type bus, comprises contracted-pole ladder 1, operating platform 2, platform support 3, operating ladder and supporting ladder, operating ladder and supporting ladder are made up of upper and lower two parts respectively, operating ladder top 4 and operating ladder bottom 5, supporting ladder top 6 and supporting ladder bottom 7 are connected and fixed by ladder cover 8 and pin rod 9, operating ladder top 4 is hinged with operating platform 2, supporting ladder top 6 is hinged with platform support 3, platform support 3 is connected by hinge 10 with operating platform 2, and establish tight locking button 11, contracted-pole ladder 1 is fixed between operating platform 2 and platform support 3, contracted-pole ladder 1 is hinged by connecting rod 12 with operating ladder top 4, on contracted-pole ladder 1 and operating ladder top 4, establish respectively support bar 13, between contracted-pole ladder 1 and operating ladder top 4 and support bar 13, be provided with the spacing net 14 of insulation, contracted-pole ladder 1 inner side is respectively equipped with link 15, contracted-pole ladder 1 is provided with safety collar 17 and lock tube 16, U-shaped shielding wire clamp 18 covers hang in lock tube 16, between U-shaped shielding wire clamp 18 and safety collar 17, there is shielding conductor 19 to be connected, O type ring 20 is fixed respectively at operating platform 2 and platform support 3 angles, outer end, operating ladder bottom 5 is connected by spacing band rope 21 with supporting ladder bottom 7, in each foot of ladder of operating ladder bottom 5 and supporting ladder bottom 7, length adjustment mechanism 22 is set.Seal is drawn in the described charged disconnecting of a kind of articulated type 66kV tube type bus, and each parts is made by insulation material glass fibre drawing and extruding section bar.
As shown in Figure 4, as shown in Figure 4, length adjustment mechanism is made up of metal shell 30, shank of bolt 31, ratchet 32, handle 33, footing 34, shank of bolt 31 is arranged in metal shell 30, footing 34 is hinged with shank of bolt 31, and handle 33 is connected with ratchet 32, and ratchet 32 is arranged on metal shell 30 middle parts.
The method of operation that seal is drawn in the charged disconnecting of a kind of articulated type 66kV tube type bus, operating personnel draws seal to tube type bus vertical lower binding post side one side along articulated type disconnecting, keep relevant voltage grade live-working safety distance, charged disconnecting drainage thread, concrete operation step is as follows:
1) at the scene on ground, the operating ladder top and the bottom and supporting ladder the top and the bottom terraced cover and pin rod that folding articulated type 66kV tube type bus disconnecting are drawn to seal assemble, on the O of operating platform and platform support type ring, fasten respectively insulation tricing line, extinguishing arc coaster is hung on the link of contracted-pole ladder, on extinguishing arc coaster, pass a bar insulation pull rope.
2) the folding articulated type 66kV tube type bus disconnecting assembling being drawn to seal lifts under the tube type bus setting of operation phase, 2 ground electricians respectively withstand a footing of operating ladder and supporting ladder with a pin, 1 ground electrician holds the insulation tricing line on O type ring, another 2 ground electricians elect each side ladder body, to install lentamente pull-up, stand on ground.
3) 2 each two bar insulation tricing lines of controlling of electrician, respectively to two side stretchings, launch operating platform and platform support, and tight locking button is automatically locked, and also complete spacing net stretching and contracted-pole ladder expansion simultaneously and put in place in expansion process, form job platform.
4) under work director's unified command, device is ajusted, make contracted-pole ladder central vertical in tube type bus center line, adjust the whole device of length adjustment mechanism leveling of four foot of ladders, the spacing band rope of holding device bottom is substantially straight, and insulation tricing line is fixed on to ground firmly in framework thing or temporary ground anchor.
5) specific responsibility guardian checks and confirms that insulation tricing line is firm, and device is fixed well, and confirms equipotential electrician screening clothing test passes, confirms that on-the-spot wind speed is not more than 5 grades, humidity and is not more than 80%.
6) equipotential electrician wears qualified a complete set of screening clothing, obtaining after work director permission, equipotential electrician climbs to operating platform along the operating ladder of device, both feet stand on operating platform, equipotential electrician climbs from ground to operating platform and stands process, remain electrified body over the ground safe distance be not less than 0.7 meter, keep combination safe distance be not less than 0.8 meter, keep be not less than 0.9 meter with adjacent phase safe distance.
7) equipotential electrician is tied to the special waist rope with shielding conductor on the safety collar of contracted-pole ladder, in contracted-pole ladder lock tube, takes off U-shaped shielding wire clamp, and U-shaped shielding conductor folder is fixed on tube type bus, realizes equipotential electrician shielding and all presses.
8) equipotential electrician ties up to one end of supratrochlear extinguishing arc insulation pull rope by cutting off drainage wire terminal board bottom above, and the pull rope other end is controlled by 1 ground electrician, and equipotential electrician removes terminal board bolt.
9) work director, specific responsibility guardian respectively before equipotential electrician body, conscientiously monitoring on the ground in orientation after one's death, guarantee that equipotential electrician stands in whole operating process on operating platform, any position of health can not exceed the spacing net of insulation, ensures that equipotential electrician is not less than 0.9 meter with adjacent phase tube type bus safe distance.
10) equipotential electrician turns to head by cutting off drainage wire terminal board in the other direction after removing terminal board bolt, work director sends whereabouts drainage thread instruction, 1 hand-held insulation pressure pin of ground electrician supports at isolating switch to 0.5 meter of of tube type bus, 1 hand-held insulating bar of ground electrician, control by cutting off drainage wire, prevent from being entered in adjacent 0.9 meter ampere full distance mutually by cutting off drainage wire, the electrician that pull rope is controlled on ground slowly emits pull rope, three people coordinate puts drainage thread slowly to ground, completes whereabouts drainage thread work.
11) equipotential electrician pulls down U-shaped shielding wire clamp and shifts current potential, and health exposed part and electrified body keep being less than 0.2 meter of distance, and equipotential electrician folds up back U-shaped shielding conductor in lock tube, unties the special waist rope tying up on safety collar, returns to ground along operating ladder.
12) step 4 repeating in cutting off drainage wire step arrives step 14, until three-phase drainage thread is all disconnected.
13) connect drainage thread contrary with the phase place step of cutting off drainage wire.
14) after on-the-spot whole operation completes, remove apparatus for work, finisher's utensil, withdraws scene, power cut-off.
Above, be only general principle of the present invention, not the present invention imposed any restrictions, everyly according to the present invention, it is carried out to equivalent variations and modification, all within the category of the art of this patent protection scheme.
Claims (4)
1. a seal is drawn in the charged disconnecting of articulated type 66kV tube type bus, it is characterized in that, comprises contracted-pole ladder, operating platform, platform support, operating ladder and supporting ladder;
Operating ladder and supporting ladder are made up of upper and lower two parts respectively, operating ladder top and operating ladder bottom, supporting ladder top and supporting ladder bottom are connected and fixed by ladder cover and pin rod, operating ladder top and operating platform are hinged, supporting ladder top and platform support are hinged, platform support and operating platform are by chain connection, and establish tight locking button, contracted-pole ladder is fixed between operating platform and platform support, contracted-pole ladder and operating ladder top are by rod hinge connection, on contracted-pole ladder and operating ladder top, establish respectively support bar, between contracted-pole ladder and operating ladder top and support bar, be provided with the spacing net of insulation, contracted-pole ladder inner side is respectively equipped with link, contracted-pole ladder is provided with safety collar and lock tube, U-shaped shielding conductor chuck hangs in lock tube, between U-shaped shielding wire clamp and safety collar, there is shielding conductor to be connected, O type ring is fixed respectively at operating platform and angle, platform support outer end, operating ladder bottom is connected by spacing band rope with supporting ladder bottom, in each foot of ladder of operating ladder bottom and supporting ladder bottom, length adjustment mechanism is set.
2. seal is drawn in the charged disconnecting of a kind of articulated type 66kV tube type bus according to claim 1, it is characterized in that, seal is drawn in the described charged disconnecting of a kind of articulated type 66kV tube type bus, and each parts is made by insulation material glass fibre drawing and extruding section bar.
3. seal is drawn in the charged disconnecting of a kind of articulated type 66kV tube type bus according to claim 1, it is characterized in that, described length adjustment mechanism is made up of metal shell, shank of bolt, ratchet, handle, footing, shank of bolt is arranged in metal shell, footing and shank of bolt are hinged, handle is connected with ratchet, and ratchet is arranged on metal shell middle part.
4. seal method of operation is drawn in the charged disconnecting of an articulated type 66kV tube type bus, it is characterized in that, adopt said apparatus to tube type bus vertical lower binding post side one side, keep relevant voltage grade live-working safety distance, charged disconnecting drainage thread, concrete operation step is as follows:
1) at the scene on ground, folding said apparatus top and the bottom being assembled, is insulation tricing line, hangs extinguishing arc coaster and insulation pull rope;
2) device assembling is lifted under the tube type bus setting of operation phase, handled device is stood on to ground by ground electrician;
3) operate device is launched by ground electrician, form job platform;
4) device is ajusted, made device central vertical in tube type bus center line, adjusting device stationarity, the tricing line that will insulate is fixed;
5) check and confirm that insulation tricing line is firm, device is fixed well, equipotential electrician's screening clothing test passes, and on-the-spot wind speed is not more than 5 grades, and humidity is not more than 80%;
6) equipotential electrician protect ready rear along device climb to device operating platform, ensure electrified body over the ground safe distance be not less than 0.7 meter, ensure combination safe distance be not less than 0.8 meter, ensure be not less than 0.9 meter with adjacent phase safe distance;
7) equipotential electrician fixes special waist rope, and shielding conductor folder is fixed on tube type bus, realizes equipotential electrician shielding and all presses;
8) equipotential electrician is by one end of insulation pull rope with fixing by cutting off drainage wire terminal board bottom, and the pull rope other end is controlled by ground electrician, and equipotential electrician removes terminal board bolt;
9) ground staff's monitoring, guarantees that equipotential electrician operation does not exceed the spacing net of insulation, ensures that equipotential electrician is not less than 0.9 meter with adjacent phase tube type bus safe distance;
10) remove after terminal board bolt, ground electrician has coordinated whereabouts drainage thread work;
11) equipotential electrician shifts current potential, ensures that health exposed part and electrified body are less than 0.2 meter of distance, unties special waist rope, returns to ground along operating ladder;
12) step 4 repeating in cutting off drainage wire step arrives step 14, until three-phase drainage thread is all disconnected;
13) connect drainage thread contrary with the phase place step of cutting off drainage wire;
14) after on-the-spot whole operation completes, remove apparatus for work, finisher's utensil, withdraws scene, power cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247935.XA CN104051979B (en) | 2014-06-06 | 2014-06-06 | Joint type 66 kV tubular busbar electrified disconnection and connection insulation device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247935.XA CN104051979B (en) | 2014-06-06 | 2014-06-06 | Joint type 66 kV tubular busbar electrified disconnection and connection insulation device and method |
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| CN104051979A true CN104051979A (en) | 2014-09-17 |
| CN104051979B CN104051979B (en) | 2017-05-24 |
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| CN105119211A (en) * | 2015-09-24 | 2015-12-02 | 国网上海市电力公司 | Combined type insulation cable ladder |
| CN105207123A (en) * | 2015-10-13 | 2015-12-30 | 国网辽宁省电力有限公司丹东供电公司 | Equipotential operation method of tubular bus |
| CN106848918A (en) * | 2017-01-13 | 2017-06-13 | 国家电网公司 | A kind of power coaster overall structure |
| CN107104397A (en) * | 2017-05-26 | 2017-08-29 | 华北电力科学研究院有限责任公司 | The method of bus isolating switch disconnecting lead |
| CN110071406A (en) * | 2019-03-27 | 2019-07-30 | 北京国电富通科技发展有限责任公司 | Power distribution network charges automatic connection tool group and robot |
| CN110086123A (en) * | 2019-06-18 | 2019-08-02 | 国网四川省电力公司乐山供电公司 | A kind of power transmission lines overhauling replacement auxiliary device |
| CN115117825A (en) * | 2022-06-24 | 2022-09-27 | 广西电网有限责任公司桂林供电局 | Live-wire operation device for pipe bus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119211A (en) * | 2015-09-24 | 2015-12-02 | 国网上海市电力公司 | Combined type insulation cable ladder |
| CN105119211B (en) * | 2015-09-24 | 2017-07-28 | 国网上海市电力公司 | A kind of Combined insulating cable ladder |
| CN105207123A (en) * | 2015-10-13 | 2015-12-30 | 国网辽宁省电力有限公司丹东供电公司 | Equipotential operation method of tubular bus |
| CN106848918A (en) * | 2017-01-13 | 2017-06-13 | 国家电网公司 | A kind of power coaster overall structure |
| CN107104397A (en) * | 2017-05-26 | 2017-08-29 | 华北电力科学研究院有限责任公司 | The method of bus isolating switch disconnecting lead |
| CN107104397B (en) * | 2017-05-26 | 2018-11-20 | 华北电力科学研究院有限责任公司 | The method of bus isolating switch disconnecting lead |
| CN110071406A (en) * | 2019-03-27 | 2019-07-30 | 北京国电富通科技发展有限责任公司 | Power distribution network charges automatic connection tool group and robot |
| CN110086123A (en) * | 2019-06-18 | 2019-08-02 | 国网四川省电力公司乐山供电公司 | A kind of power transmission lines overhauling replacement auxiliary device |
| CN115117825A (en) * | 2022-06-24 | 2022-09-27 | 广西电网有限责任公司桂林供电局 | Live-wire operation device for pipe bus |
| CN115117825B (en) * | 2022-06-24 | 2023-06-27 | 广西电网有限责任公司桂林供电局 | Pipe box electrified operation device |
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Address after: 114002 South victory road, Tiedong District, Anshan, Liaoning Province, No. 33 Co-patentee after: State Grid Corporation of China Patentee after: Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Address before: 100031 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Patentee before: State Grid Corporation of China |