CN102684088B - Transformer assembly and disassembly methods - Google Patents
Transformer assembly and disassembly methods Download PDFInfo
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- CN102684088B CN102684088B CN201210182407.1A CN201210182407A CN102684088B CN 102684088 B CN102684088 B CN 102684088B CN 201210182407 A CN201210182407 A CN 201210182407A CN 102684088 B CN102684088 B CN 102684088B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000033228 biological regulation Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims abstract description 4
- 230000000630 rising effect Effects 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 9
- 241001669679 Eleotris Species 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000004677 Nylon Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of transformer assembly and disassembly methods, belong to large-scale power transformer technical field.Concrete steps are as follows: old master's change is drained the oil, and remove three sides lead-in wires, all annexes and secondary line; The Buchholz relay of new main transformer and instrument are verified; Dismantle old main transformer body, new main transformer body is installed; New main transformer radiator and oil return line pipeline, rubber cushion are installed; New main transformer body breaks nitrogen; New main transformer CT is installed and raises seat, blower fan and thermometer; New main transformer conservator is installed; New main transformer on-load voltage regulation is installed; New main transformer body oil return, makes three side lead-in wires, connects new main transformer secondary line; The Buchholz relay of new main transformer is installed, the oiling of new main transformer conservator, adjustment oil level; On-load voltage regulating switch oiling; Check secondary line connection, carry out transmission test; Carry out cleaning, spraying paint; New main transformer three side lead-in wire is carried out connecing drawing, completes the installation of new main transformer.The method of the invention can save the job step of some complicated procedures of forming, saves the operating time, increases work efficiency.
Description
Technical field
The present invention relates to a kind of transformer assembly and disassembly methods, be applicable to the dismounting of large-scale power transformer.
Background technology
The installation of large-scale power transformer, has that workload is large, the activity duration is long, it is wide to relate to specialty, has again cargo handling operation simultaneously and combines closely, affects the features such as construction factor is many.Radiator quantity at least 20 group of every platform transformer, volume is large, quantity is many, in overhaul engineering, radiator remove and install be one loaded down with trivial details and last longer work.The demounting procedure of usual radiator is as follows: 1, body is removed: with single suspender belt by radiator vertical lifting, move apart main transformer body; 2, tilt to fall: radiator is moved to and stacks near place, under staff helps, tilt to fall on the ground; 3, change rope: after radiator is set level on the ground, single suspender belt is used two suspender belts instead and is carried out flat hanging; 4, flatly stacking is hung: with two parallel radiators of slinging of suspender belt, then radiator is carried out neat stacking.The method for dismounting of this radiator is more loaded down with trivial details, and consuming time longer.
In addition, old master becomes leave from office entrucking, new main transformer is appeared on the stage installation in position, it is the critical workflow in overhaul work, the direct overall progress affecting overhaul, at present, when main transformer rotation overhaul is left office, usual use transport vehicle, first old master will be become leave from office moves to idle local, again new main transformer is appeared on the stage, last old master change is is again entrucked and carried away, work put by sleeper at least will carry out 4 times, sometimes limit by on-the-spot place, when translation distance increases, also to increase sleeper and put number of times, job step increase to 8 even more, whole work at least needs just can complete for 3 days.
In addition, the installation that CT raises seat adopts 3 lifting methods usually, namely two suspender belts are as head-rope, one is coordinated to regulate the adjusting rope raising seat inclined degree to carry out lifting or dismantling, owing to raising the not of uniform size of seat, the gradient of installing is different again, and the gradient of not fixing during lifting, the length of adjusting rope all needs to determine according to on-site actual situations at every turn.Adjusting rope is in the past the large rope of nylon: rely on experience in the past and sensation, carry out preliminary judgement, colligation to the length of adjusting rope, and then examination is hung, and judges to raise seat gradient whether consistent with main transformer body gradient after leaving ground by range estimation.When difference is large, rising seat need be put down, again increase or shorten the colligation length of adjusting rope.And this increase and decrease amount regulated, the factor such as stroke by colligation gimmick and nylon rope self limits, and is difficult to control just right.When installing rising seat, often lifting a rising seat often needs repeatedly to regulate, try to hang.Sometimes hung main transformer top, because rising seat and body gradient gap are comparatively large, again rising seat need have been hung go back to original place and regulate.And every seat that only raises that is high, medium voltage side all needs so to carry out re-adjustments, just can complete lifting work, this adjustment process repeatedly, lose time, inefficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of transformer assembly and disassembly methods saved the operating time, increase work efficiency.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of transformer assembly and disassembly methods, and its key step is as follows:
(1) old master's change is drained the oil, and removes the lead-in wire that old master becomes high, medium and low voltage three side, removes the secondary line that old master becomes;
(2) radiator, the CT that dismantle old master's change raise seat, sleeve pipe, conservator, blower fan, oil pump annex;
(3) Buchholz relay of new main transformer and instrument are verified;
(4) dismantle old main transformer body, new main transformer body is installed;
(5) new main transformer radiator and oil return line pipeline, rubber cushion are installed;
(6) new main transformer body breaks nitrogen, the new main transformer body inner case of hand inspection;
(7) new main transformer CT is installed and raises seat, blower fan and thermometer;
(8) new main transformer conservator is installed;
(9) new main transformer on-load voltage regulation is installed, new main transformer body is vacuumized together with on-load voltage regulating switch;
(10) new main transformer body oil return, makes new main transformer high, medium and low voltage three side lead-in wire, connects the secondary line that new main transformer is all;
(11) Buchholz relay of new main transformer is installed, the oiling of new main transformer conservator, adjustment oil level;
(12) on-load voltage regulating switch oiling, carries out leakage test to above-mentioned new main transformer entirety, then leaves standstill;
(13) staff checks all secondary line connections of new main transformer, carries out transmission test to new main transformer; Then new main transformer is cleaned, sprayed paint;
(14) lead-in wire of new main transformer high, medium and low voltage three side is carried out connecing drawing, complete the installation of new main transformer.
The specific works step that above-mentioned steps (2) middle dismounting old master becomes radiator is as follows:
A, the hook of hoist as load-bearing hook to be connected with radiator top by suspender belt, the little hook of crane as auxiliary hook is connected with bottom radiator by suspender belt;
B, by hook of hoist, radiator vertically to be sling, move apart main transformer body;
C, make radiator realize level aloft by the adjustment of the little hook of crane and hook of hoist, then direct radiator to be neatly deposited on ground.
The old main transformer body of dismounting in above-mentioned steps (4), the specific works step of installing new main transformer body is as follows:
A, get out an old master and become transport vehicle and a new main transformer transport vehicle;
B, to become between transport vehicle at old main transformer body and old master and lay railway sleepers, then old main transformer body is left office, install to old master and become on transport vehicle, transport;
C, new main transformer body to be contained on new main transformer transport vehicle, to be transported to the position of installing new main transformer, to utilize the sleeper laid in steps A to install new main transformer body.
The concrete steps of installing new main transformer CT rising seat in above-mentioned steps (7) are as follows:
A, CT is raised seat upper flange dish be connected with suspension hook by two suspender belts, the tie point that described two suspender belts and CT raise seat upper flange dish is two end points of described upper flange dish diameter;
B, to be coordinated by one section of steel wire rope form adjusting rope with flower basket bolt, be connected with suspension hook one end of described adjusting rope, its other end and CT raise seat upper flange dish and are connected, and tie point is the arcuate midway point between two suspender belts and upper flange dish tie point;
C, by regulating flower basket bolt to adjust the length of above-mentioned adjusting rope, and then adjustment CT raises the gradient of seat lower flange dish, makes CT raise the gradient of seat lower flange dish consistent with the ring flange gradient of new main transformer;
D, maintenance CT raise the gradient of seat lower flange dish, pull suspension hook CT to be raised the relevant position that seat is lifted to new main transformer, CT are raised seat lower flange dish and be connected with the ring flange of new main transformer, complete the installation that CT raises seat.
The installation method of above-mentioned radiator is consistent with method for dismounting, and order is contrary.
Method for dismounting and the installation method of above-mentioned CT rising seat are similar.
Beneficial effect of the present invention is as follows:
(1) by improving the assembly and disassembly methods of radiator, decreasing dismounting step, substantially reducing the disassembly and assembly time of radiator;
(2) by improving the old main transformer body of dismounting, installing the method for new main transformer body, saved job step, saved the operating time;
(3) raising the installation method of seat by improving CT, the gradient that CT raises seat ring flange can be adjusted fast and accurately, save the operating time, increase work efficiency.
Embodiment
Embodiment, transformer assembly and disassembly methods of the present invention, concrete steps are as follows:
(1) old master's change is drained the oil, and removes the lead-in wire that old master becomes high, medium and low voltage three side, removes the secondary line that old master becomes;
(2) annex such as radiator, CT rising seat, sleeve pipe, conservator, blower fan, oil pump that old master becomes is dismantled;
The radiator that above-mentioned dismounting old master becomes, concrete steps are as follows:
A, the hook of hoist as load-bearing hook to be connected with radiator top by suspender belt, the little hook of crane as auxiliary hook is connected with bottom radiator by suspender belt;
B, by hook of hoist, radiator vertically to be sling, move apart main transformer body;
C, make radiator realize level aloft by the adjustment of the little hook of crane and hook of hoist, then direct radiator to be neatly deposited on ground.
(3) Buchholz relay of new main transformer and instrument are verified;
(4) dismantle old main transformer body, install new main transformer body, specific works step is as follows:
A, get out an old master and become transport vehicle and a new main transformer transport vehicle;
B, to become between transport vehicle at old main transformer body and old master and lay railway sleepers, then old main transformer body is left office, install to old master and become on transport vehicle, transport;
C, new main transformer body to be contained on new main transformer transport vehicle, to be transported to the position of installing new main transformer, to utilize the sleeper laid in steps A to install new main transformer body.
(5) new main transformer radiator and oil return line pipeline, rubber cushion are installed;
(6) new main transformer body breaks nitrogen, the new main transformer body inner case of hand inspection;
(7) install new main transformer CT and raise seat, blower fan and thermometer, the specific works step of wherein installing new main transformer CT rising seat is as follows:
A, CT is raised seat upper flange dish be connected with suspension hook by two suspender belts, the tie point that described two suspender belts and CT raise seat upper flange dish is two end points of described upper flange dish diameter;
B, to be coordinated by one section of steel wire rope form adjusting rope with flower basket bolt, be connected with suspension hook one end of described adjusting rope, its other end and CT raise seat upper flange dish and are connected, and tie point is the arcuate midway point between two suspender belts and upper flange dish tie point;
C, by regulating flower basket bolt to adjust the length of above-mentioned adjusting rope, and then adjustment CT raises the gradient of seat lower flange dish, makes CT raise the gradient of seat lower flange dish consistent with the ring flange gradient of new main transformer;
D, maintenance CT raise the gradient of seat lower flange dish, pull suspension hook CT to be raised the relevant position that seat is lifted to new main transformer, CT are raised seat lower flange dish and be connected with the ring flange of new main transformer, complete the installation that CT raises seat.
(8) new main transformer conservator is installed;
(9) new main transformer on-load voltage regulation is installed, new main transformer body is vacuumized together with on-load voltage regulating switch;
(10) new main transformer body oil return, makes new main transformer high, medium and low voltage three side lead-in wire, connects the secondary line that new main transformer is all;
(11) Buchholz relay of new main transformer is installed, the oiling of new main transformer conservator, adjustment oil level;
(12) on-load voltage regulating switch oiling, carries out leakage test to above-mentioned new main transformer entirety, then leaves standstill;
(13) staff checks all secondary line connections of new main transformer, carries out transmission test to new main transformer; Then new main transformer is cleaned, sprayed paint;
(14) lead-in wire of new main transformer high, medium and low voltage three side is carried out connecing drawing, complete the installation of new main transformer.
The installation method of above-mentioned radiator is consistent with method for dismounting, and order is contrary.
Method for dismounting and the installation method of above-mentioned CT rising seat are similar.
The present invention, by improving the assembly and disassembly methods of radiator, decreases dismounting step, substantially reduces the disassembly and assembly time of radiator; By improving the old main transformer body of dismounting, installing the method for new main transformer body, save job step, saved the operating time; Raising the installation method of seat by improving CT, the gradient that CT raises seat ring flange can be adjusted fast and accurately, save the operating time, increase work efficiency.
Claims (3)
1. a transformer assembly and disassembly methods, is characterized in that, its method step is as follows:
(1) old master's change is drained the oil, and removes the lead-in wire that old master becomes high, medium and low voltage three side, removes the secondary line that old master becomes;
(2) radiator, the CT that dismantle old master's change raise seat, sleeve pipe, conservator, blower fan, oil pump annex;
(3) Buchholz relay of new main transformer and instrument are verified;
(4) dismantle old main transformer body, new main transformer body is installed;
(5) new main transformer radiator and oil return line pipeline, rubber cushion are installed;
(6) new main transformer body breaks nitrogen, the new main transformer body inner case of hand inspection;
(7) new main transformer CT is installed and raises seat, blower fan and thermometer; Its concrete steps of installing new main transformer CT rising seat are as follows:
A, CT is raised seat upper flange dish be connected with suspension hook by two suspender belts, the tie point that described two suspender belts and CT raise seat upper flange dish is two end points of described upper flange dish diameter;
B, to be coordinated by one section of steel wire rope form adjusting rope with flower basket bolt, be connected with suspension hook one end of described adjusting rope, its other end and CT raise seat upper flange dish and are connected, and tie point is the arcuate midway point between two suspender belts and upper flange dish tie point;
C, by regulating flower basket bolt to adjust the length of above-mentioned adjusting rope, and then adjustment CT raises the gradient of seat lower flange dish, makes CT raise the gradient of seat lower flange dish consistent with the ring flange gradient of new main transformer;
D, maintenance CT raise the gradient of seat lower flange dish, pull suspension hook CT to be raised the relevant position that seat is lifted to new main transformer, CT are raised seat lower flange dish and be connected with the ring flange of new main transformer, complete the installation that CT raises seat;
(8) new main transformer conservator is installed;
(9) new main transformer on-load voltage regulation is installed, new main transformer body is vacuumized together with on-load voltage regulating switch;
(10) new main transformer body oil return, makes new main transformer high, medium and low voltage three side lead-in wire, connects the secondary line that new main transformer is all;
(11) Buchholz relay of new main transformer is installed, the oiling of new main transformer conservator, adjustment oil level;
(12) on-load voltage regulating switch oiling, carries out leakage test to above-mentioned new main transformer entirety, then leaves standstill;
(13) staff checks all secondary line connections of new main transformer, carries out transmission test to new main transformer; Then new main transformer is cleaned, sprayed paint;
(14) lead-in wire of new main transformer high, medium and low voltage three side is carried out connecing drawing, complete the installation of new main transformer.
2. transformer assembly and disassembly methods according to claim 1, is characterized in that, the specific works step that step (2) middle dismounting old master becomes radiator is as follows:
A, the hook of hoist as load-bearing hook to be connected with radiator top by suspender belt, the little hook of crane as auxiliary hook is connected with bottom radiator by suspender belt;
B, by hook of hoist, radiator vertically to be sling, move apart main transformer body;
C, make radiator realize level aloft by the adjustment of the little hook of crane and hook of hoist, then direct radiator to be neatly deposited on ground.
3. transformer assembly and disassembly methods according to claim 1, is characterized in that, the old main transformer body of dismounting in step (4), and the specific works step of installing new main transformer body is as follows:
A, get out an old master and become transport vehicle and a new main transformer transport vehicle;
B, to become between transport vehicle at old main transformer body and old master and lay railway sleepers, then old main transformer body is left office, install to old master and become on transport vehicle, transport;
C, new main transformer body to be contained on new main transformer transport vehicle, to be transported to the position of installing new main transformer, to utilize the sleeper laid in steps A to install new main transformer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210182407.1A CN102684088B (en) | 2012-06-05 | 2012-06-05 | Transformer assembly and disassembly methods |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210182407.1A CN102684088B (en) | 2012-06-05 | 2012-06-05 | Transformer assembly and disassembly methods |
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| CN102684088A CN102684088A (en) | 2012-09-19 |
| CN102684088B true CN102684088B (en) | 2016-02-24 |
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| CN104009403B (en) * | 2014-05-21 | 2015-12-02 | 国网四川省电力公司成都市新都供电分公司 | Be exclusively used in the repair method to outdoor large transformer |
| CN108183417A (en) * | 2018-01-24 | 2018-06-19 | 武汉大学 | A kind of substation based on 110kV/40MVA phase shifting transformer vehicles replaces method of supplying power to |
| CN108110757A (en) * | 2018-01-24 | 2018-06-01 | 武汉大学 | Replace method of supplying power in the substation line interval of 110kV/3100A mobile high-voltage combined electrical apparatus vehicles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110520A (en) * | 2010-12-30 | 2011-06-29 | 陕西化建工程有限责任公司 | Construction process for installing and debugging large transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060035704A (en) * | 2006-04-06 | 2006-04-26 | 이명근 | The length adjustable wire sling |
| CN101546889B (en) * | 2009-05-11 | 2011-05-04 | 河南省电力公司南阳供电公司 | Method for replacing main transformer of power system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110520A (en) * | 2010-12-30 | 2011-06-29 | 陕西化建工程有限责任公司 | Construction process for installing and debugging large transformer |
Non-Patent Citations (3)
| Title |
|---|
| 丰镇电厂500kV主变压器拆卸方案;马智等;《内蒙古科技与经济》;20110630(第11期);第96、98页 * |
| 停电16小时更换110KV变压器;薛洛良等;《电工技术》;20111130(第11期);第60、62页 * |
| 特高压变压器现场安装关键技术及应用;张建坤等;《电网技术》;20090531;第33卷(第10期);第1-6页 * |
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Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: XINGTAI POWER SUPPLY COMPANY Effective date: 20120913 Owner name: HEBEI ELECTRIC POWER CORPORATION XINGTAI POWER SUP Effective date: 20120913 |
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Free format text: CORRECT: ADDRESS; FROM: 054001 XINGTAI, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING |
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Effective date of registration: 20120913 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Hebei Electric Power Corporation Applicant after: Xingtai Power Supply Co. Address before: 054001, No. 318 East Street, Xinxing Road, Hebei, Xingtai Applicant before: Xingtai Power Supply Co. |
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