CN101615486A - Method for replacing large-scale transformer accessory to leak oil - Google Patents
Method for replacing large-scale transformer accessory to leak oil Download PDFInfo
- Publication number
- CN101615486A CN101615486A CN200910065001A CN200910065001A CN101615486A CN 101615486 A CN101615486 A CN 101615486A CN 200910065001 A CN200910065001 A CN 200910065001A CN 200910065001 A CN200910065001 A CN 200910065001A CN 101615486 A CN101615486 A CN 101615486A
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- oil
- transformer
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- replaced
- power
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012423 maintenance Methods 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000008439 repair process Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Transformer Cooling (AREA)
Abstract
A method for replacing large transformer accessories with oil leakage relates to a method for replacing accessories when the large transformer accessories used in an electric power system leak (seep). After the large transformer is found to have oil leakage, the power is cut off, the large transformer body full of oil is vacuumized, the oil leakage phenomenon stops, damaged parts are replaced, oil is supplemented into the large transformer, and the overhaul is completed after trial operation. When the damaged part is replaced, the damaged part is withdrawn and a new part is replaced. The process method is used for replacing the accessory of the large-scale transformer to leak oil, so that the working procedures of oil drainage, vacuum maintenance, oil injection and the like are omitted, the whole maintenance process is not more than 8 hours, a large amount of maintenance time and power failure time are saved, the labor time of workers is reduced, the abnormal operation time of the transformer is reduced, the safety and the reliability of a power grid are ensured, and the comprehensive economic benefit is improved.
Description
One, technical field
The present invention relates to the used accessory of large-scale transformer of a kind of electric power system and when leaking (oozing), change the method for annex.
Two, background technology
High-power transformer is owing to long or other external force factor running time, situations such as wearing out can appear in the part annex of transformer, distortion, with and cause local (oozing) the oily phenomenon of leaking, have a strong impact on the security of operation of transformer, traditional maintenance technology is at first to have a power failure to drain the oil, and changes parts, will not have oily transformer again and vacuumize, and keeps its vacuum degree, toward the interior oiling of transformer, repairing, after test run, just finish maintenance again.Transformer oil has run off severe contamination for a long time environment has also damaged maintainer's health.Also can cause the power failure more than 60 hours during maintenance, cause heavy losses to industrial production, traditional repair method also expends a large amount of human and material resources and financial resources.
Three, summary of the invention
The present invention seeks to adopt not have a power failure, do not drain the oil, directly the method that the high-power transformer body is vacuumized is changed annex.
Technical method of the present invention is: have a power failure after the discovery high-power transformer has leakage of oil, full oily high-power transformer body is vacuumized, oil leakage phenomenon stops, and changes and damages parts, toward the interior repairing of high-power transformer, finishes maintenance after trial run afterwards.Change when damaging parts, damage parts and withdraw from, more renew parts simultaneously.
Change the annex leakage of oil of high-power transformer with this process, saved operations such as draining the oil, keep vacuum and oiling, whole maintenance process is no more than 8 hours, a large amount of repair times and interruption duration have been saved, alleviated workman's working time, reduce the transformer abnormal running time, guaranteed the fail safe and the reliability of electrical network, improved overall economic efficiency.
Four, embodiment
After the annex (as butterfly valve) of finding high-power transformer has the oily phenomenon of leakage (oozing), the extension tube attached of vacuum pump is communicated with the butterfly valve door of high-power transformer bodies top, the unlatching butterfly valve also begins to vacuumize, make in the transformer body and reach vacuum, the intrinsic oil of transformer loses pressure, oil leakage phenomenon stops, at this moment change the parts that damage with the shortest time, as lay down the set bolt of bad parts, be close to new parts are parallel with it, when progressively advancing new parts, bad parts progressively withdraw from simultaneously, when shifting original position onto, use bolt, lay down vacuum extractor afterwards, in the transformer body, replenish the transformer oil that lacks, after trying normally, transformation can normally be moved afterwards.
Claims (2)
1, a kind of method of changing accessory of large-scale transformer in oil leakage is characterized in that: have a power failure after the discovery high-power transformer has leakage of oil, full oily high-power transformer body is vacuumized, oil leakage phenomenon stops, change and damage parts, toward the interior repairing of high-power transformer, after trial run, finish maintenance afterwards.
2, a kind of method of changing accessory of large-scale transformer in oil leakage according to claim 1 is characterized in that: change when damaging parts, damage parts and withdraw from, more renew parts simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910065001A CN101615486A (en) | 2009-05-19 | 2009-05-19 | Method for replacing large-scale transformer accessory to leak oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910065001A CN101615486A (en) | 2009-05-19 | 2009-05-19 | Method for replacing large-scale transformer accessory to leak oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101615486A true CN101615486A (en) | 2009-12-30 |
Family
ID=41495073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910065001A Pending CN101615486A (en) | 2009-05-19 | 2009-05-19 | Method for replacing large-scale transformer accessory to leak oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101615486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931175A (en) * | 2010-08-19 | 2010-12-29 | 河南省电力公司郑州供电公司 | Method for replacing accessory of large transformer without discharging oil by vacuum oil extraction |
| CN101931174A (en) * | 2010-08-19 | 2010-12-29 | 河南省电力公司郑州供电公司 | Method for realizing changing accessories of large transformer without discharging oil by utilizing oil conservator to conserve oil |
-
2009
- 2009-05-19 CN CN200910065001A patent/CN101615486A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931175A (en) * | 2010-08-19 | 2010-12-29 | 河南省电力公司郑州供电公司 | Method for replacing accessory of large transformer without discharging oil by vacuum oil extraction |
| CN101931174A (en) * | 2010-08-19 | 2010-12-29 | 河南省电力公司郑州供电公司 | Method for realizing changing accessories of large transformer without discharging oil by utilizing oil conservator to conserve oil |
| CN101931175B (en) * | 2010-08-19 | 2012-10-17 | 河南省电力公司郑州供电公司 | Method for replacing accessory of large transformer without discharging oil by vacuum oil extraction |
| CN101931174B (en) * | 2010-08-19 | 2012-10-17 | 河南省电力公司郑州供电公司 | Method for realizing changing accessories of large transformer without discharging oil by utilizing oil conservator to conserve oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091230 |