CN103336196B - A kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer - Google Patents
A kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer Download PDFInfo
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- CN103336196B CN103336196B CN201310246504.7A CN201310246504A CN103336196B CN 103336196 B CN103336196 B CN 103336196B CN 201310246504 A CN201310246504 A CN 201310246504A CN 103336196 B CN103336196 B CN 103336196B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 46
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 230000007935 neutral effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
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Abstract
The present invention relates to power transformer technical field, disclose a kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer, described transformer comprises main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe, main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe are all connected with SF6 air chamber, and transformer is connected with GIS device; Step comprises S1: at maintenance main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe, SF6 air chamber, under GIS device sealing state, open main transformer primary side disconnecting link and main transformer secondary side disconnecting link; S2: by the outlet of two sleeve pipes and transformer neutral point test wire short circuit, step down side winding short circuit; S3: apply high voltage at transformer neutral point place, measures the insulation resistance of high, middle pressure winding to low pressure winding and ground respectively, measures low pressure winding respectively to insulation resistance that is high, middle pressure winding.The present invention has feasibility, and takes a short time, and Expenses Cost is low.
Description
Technical field
The present invention relates to power transformer technical field, especially relate to a kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer.
Background technology
In the large-scale power transformer put into operation in recent years, in order to realize being connected with GIS, transformer high-voltage wire outlet sleeve pipe generally adopts insulating oil/SF6 gas formation high-voltage capacitance molded cannula (being called for short oil/gas sleeve pipe).Oil/gas sleeve pipe outgoing-line type transformer, due to device structure reason, when routine test is carried out to equipment in scene, needs oil/gas sleeve pipe, SF6 air chamber, GIS etc. to open, and reclaims SF6 gas, and work difficulty is large, and spended time is long, and Expenses Cost is high.
Summary of the invention
The present invention, for overcoming above-mentioned deficiency of the prior art, provides a kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer.
The present invention is achieved through the following technical solutions above-mentioned purpose.
A kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer, described transformer comprises main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe, main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe are all connected with SF6 air chamber, and transformer is connected with GIS device; Step comprises:
S1: under main transformer primary side oil/gas sleeve pipe, main transformer secondary side oil/gas sleeve pipe, SF6 air chamber, GIS device keep sealing state, open main transformer primary side disconnecting link and main transformer secondary side disconnecting link; S2: by the outlet of main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe and transformer neutral point test wire short circuit, step down side winding short circuit; S3: apply high voltage at transformer neutral point place, measures the insulation resistance of high, middle pressure winding to low pressure winding and ground respectively, measures low pressure winding respectively to insulation resistance that is high, middle pressure winding.
Above-mentioned step also comprises S4: measure the dielectric dissipation factor of high, middle pressure winding to low pressure winding and ground respectively, measure low pressure winding respectively to dielectric dissipation factor that is high, middle pressure winding.Measured value and factory-said value are compared, can judge whether transformer has problems further.
Above-mentioned step also comprises S5: the resistance measuring main-transformer three-phase windings respectively.Measured value and factory-said value are compared, can judge whether transformer has problems further.
Above-mentioned step also comprises S6: remove high voltage, between main transformer primary side disconnecting link and main transformer secondary side disconnecting link, apply trial voltage, measures electric capacity and the dielectric dissipation factor of main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe respectively.Measured value and factory-said value are compared, can judge whether transformer has problems further.
The present invention compared with prior art mainly has following beneficial effect: need not open measuring transformer winding insulation resistance parameter under the prerequisite of oil/gas sleeve pipe, SF6 air chamber, GIS device, then compare with factory-said value, can judge whether transformer has problems.Test proves that the error after Transformer Winding insulation measurement value and factory-said value are relatively is within allowed band, and measured value has consistance, and data are reliable.The method has feasibility, and takes a short time, and Expenses Cost is low.
Accompanying drawing explanation
Fig. 1 be measure in embodiment high, middle pressure winding to low pressure winding and ground parameters time connection schematic diagram.
Fig. 2 is connection schematic diagram when measuring the parameters of low pressure winding to high, middle pressure winding in embodiment.
Fig. 3 is measured value and the factory-said value contrast table of Transformer Winding insulation resistance in embodiment.
Fig. 4 is measured value and the factory-said value contrast table of Transformer Winding electric capacity and dielectric dissipation factor in embodiment.
Fig. 5 is measured value and the factory-said value contrast table of the resistance of Three-Phase Transformer winding in embodiment.
Fig. 6 is measured value and the factory-said value contrast table of bushing shell for transformer and dielectric dissipation factor in embodiment.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent.
In order to more succinct explanation the present embodiment, in accompanying drawing or explanation, some well known to a person skilled in the art but can omit to some extent with the incoherent parts of main contents of the present invention.In addition for ease of statement, in accompanying drawing, some parts has omission, zooms in or out, but does not represent size or the entire infrastructure of actual product.
Embodiment 1:
A kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer, described transformer comprises main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe, main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe are all connected with SF6 air chamber, and transformer is connected with GIS device; Step comprises S1: under the prerequisite not opening main transformer primary side oil/gas sleeve pipe, main transformer secondary side oil/gas sleeve pipe, SF6 air chamber, GIS device, open main transformer primary side disconnecting link and main transformer secondary side disconnecting link; S2: by the outlet of main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe and transformer neutral point test wire short circuit, step down side winding ax short circuit; S3: apply 5000V high voltage at transformer neutral point place, connected mode as shown in Figure 1, measures the insulation resistance of high, middle pressure winding to low pressure winding and ground respectively; Connected mode as shown in Figure 2, measures low pressure winding respectively to insulation resistance that is high, middle pressure winding.Measured value and factory-said value are as shown in Figure 3.Because transformer neutral point and the test wire between main transformer primary side disconnecting link and main transformer secondary side disconnecting link have certain length, after pressurization there is the interference of stray capacitance in test wire over the ground, there is error in test data and factory data, but according to the Changing Pattern of data and delivery test data consistency better, can the reliability of decision data.Because the test wire of step down side is shorter, high pressure and middle pressure winding earth, apply 5000V trial voltage in low-pressure side, the winding insulation resistance data recorded and transformer factory data basically identical.Thus prove that transformer is no problem in this parameter.
The present embodiment also comprises step S4: measure the dielectric dissipation factor of high, middle pressure winding to low pressure winding and ground respectively, measure low pressure winding respectively to dielectric dissipation factor that is high, middle pressure winding.Measured value and factory-said value as shown in Figure 4, the measured value Pass Test mode of connection change impact, thus prove transformer no problem in this parameter.
The present embodiment also comprises step S5: the resistance measuring main-transformer A, B, C three-phase windings respectively.As shown in Figure 5, measured value compares with factory-said value for measured value and factory-said value, and error in allowed band, thus proves that transformer is no problem in this parameter.
The present embodiment also comprises step S6: remove high voltage, to extend respectively with main transformer secondary side disconnecting link place at main transformer primary side disconnecting link and be connected test wire, then guarantee equipment by prerequisite under apply trial voltage, measure electric capacity and the dielectric dissipation factor of main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe respectively.Measured value and factory-said value are as shown in Figure 6.Measured value compares with factory-said value, and error in allowed band, thus proves that transformer is no problem in this parameter.
Every major parameter of the present embodiment measuring transformer under the prerequisite need not opening main transformer primary side oil/gas sleeve pipe, main transformer secondary side oil/gas sleeve pipe, SF6 air chamber, GIS device, then compare with factory-said value, thus can judge whether transformer has problems.Test proves that the measured value adopting the present embodiment method to draw has consistance, and data are reliable.The method has feasibility, and takes a short time, and Expenses Cost is low.
These are only a specific embodiment of the present invention, but design concept of the present invention is not limited thereto, all the present invention of utilization conceive the insubstantial modifications made the present invention, all fall within protection scope of the present invention.
Claims (1)
1. the measuring method of an oil/gas sleeve pipe outgoing-line type transformer, described transformer comprises main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe, main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe are all connected with SF6 air chamber, transformer is connected with GIS device, it is characterized in that:
S1: under main transformer primary side oil/gas sleeve pipe, main transformer secondary side oil/gas sleeve pipe, SF6 air chamber, GIS device are in sealing state, open main transformer primary side disconnecting link and main transformer secondary side disconnecting link;
S2: by the outlet of main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe and transformer neutral point test wire short circuit, step down side winding short circuit;
S3: apply high voltage at transformer neutral point place, measures the insulation resistance of high, middle pressure winding to low pressure winding and ground respectively, measures low pressure winding respectively to insulation resistance that is high, middle pressure winding;
S4: measure the dielectric dissipation factor of high, middle pressure winding to low pressure winding and ground respectively, measure low pressure winding respectively to dielectric dissipation factor that is high, middle pressure winding;
Step S5: the resistance measuring main-transformer three-phase windings respectively;
S6: remove high voltage, applies trial voltage between main transformer primary side disconnecting link and main transformer secondary side disconnecting link, measures electric capacity and the dielectric dissipation factor of main transformer primary side oil/gas sleeve pipe and main transformer secondary side oil/gas sleeve pipe respectively.
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| CN201310246504.7A CN103336196B (en) | 2013-06-20 | 2013-06-20 | A kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer |
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| CN201310246504.7A CN103336196B (en) | 2013-06-20 | 2013-06-20 | A kind of measuring method of oil/gas sleeve pipe outgoing-line type transformer |
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| CN103336196B true CN103336196B (en) | 2015-11-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970267A (en) * | 2017-03-17 | 2017-07-21 | 郑州旭飞光电科技有限公司 | Measuring method, controller and the control system of conductor insulation against ground resistance |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019022B (en) * | 2016-07-05 | 2024-03-29 | 国网辽宁省电力有限公司丹东供电公司 | Cover plate test device for connecting gas chamber between oil-gas type transformer and GIS and operation method |
| CN107727989A (en) * | 2017-10-10 | 2018-02-23 | 大唐国际发电股份有限公司北京高井热电厂 | The test method of oil-gas casing structure transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900782A (en) * | 2010-07-01 | 2010-12-01 | 思源电气股份有限公司 | Testing system of gas insulated combined electric appliance equipment |
| CN202421414U (en) * | 2011-11-15 | 2012-09-05 | 国网电力科学研究院 | Super and extra high pressure oil-SF6 sleeve testing apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100566440B1 (en) * | 2004-09-03 | 2006-03-31 | 엘에스산전 주식회사 | Es structure of gas insulated switchgear |
| KR101043371B1 (en) * | 2011-01-11 | 2011-07-01 | 주식회사 시프트 | Method for eliminating moisture of gis current transformer section using excitation characteristics of the current transformer |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900782A (en) * | 2010-07-01 | 2010-12-01 | 思源电气股份有限公司 | Testing system of gas insulated combined electric appliance equipment |
| CN202421414U (en) * | 2011-11-15 | 2012-09-05 | 国网电力科学研究院 | Super and extra high pressure oil-SF6 sleeve testing apparatus |
Non-Patent Citations (3)
| Title |
|---|
| 油/气绝缘套管出线变压器现场试验方法;申积良 等;《湖南电力》;20091231(第2期);第5-7页 * |
| 油气套管连接的变压器试验;陈伟;《江苏省电机工程学会城市供用电学术论文集》;20041231;第10-13页以及第38页 * |
| 针对GIS特殊结构的例行试验研究;全朝春;《2010年全国输变电设备状态检修技术交流研讨会论文集》;20101231;第84-86页 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970267A (en) * | 2017-03-17 | 2017-07-21 | 郑州旭飞光电科技有限公司 | Measuring method, controller and the control system of conductor insulation against ground resistance |
| CN106970267B (en) * | 2017-03-17 | 2019-10-08 | 郑州旭飞光电科技有限公司 | Measurement method, controller and the control system of conductor insulation against ground resistance |
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