CN107917936A - A kind of method for judging whether insulator dielectric loss is qualified - Google Patents
A kind of method for judging whether insulator dielectric loss is qualified Download PDFInfo
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- CN107917936A CN107917936A CN201711161514.5A CN201711161514A CN107917936A CN 107917936 A CN107917936 A CN 107917936A CN 201711161514 A CN201711161514 A CN 201711161514A CN 107917936 A CN107917936 A CN 107917936A
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- dielectric loss
- insulator
- measuring instrument
- mutual inductor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
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- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
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- Measurement Of Resistance Or Impedance (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to a kind of method for judging whether insulator dielectric loss is qualified, belong to technical field of mutual inductor manufacture.Technical solution is：First by insulator during experiment（1）Wiped clean is simultaneously dried, test tool（2）For two, it is fastened around respectively at the upper and lower opening of insulator, two test tools（2）Pass through signal wire and dielectric loss measuring instrument（3）It is connected, dielectric loss measuring instrument（3）Apply 3kV voltages, test insulator（1）Dielectric loss value, judge that can it cause mutual inductor finished product dielectric loss exceeded.The positive effect of the present invention：It can judge that can insulator body dielectric loss value cause mutual inductor finished product dielectric loss exceeded in advance, greatly reduce rework cost, eliminate hidden danger of quality.
Description
Technical field
The present invention relates to a kind of method for judging whether insulator dielectric loss is qualified, belong to technical field of mutual inductor manufacture.
Background technology
According to national standard ,≤363kV finished current dielectric dissipation factor permissible values（）It should be no more than
0.5%.Mutual inductor is assembled by many group parts, and the electrical defect of any one group parts is likely to cause mutual inductor
Finished product dielectric loss is exceeded.Especially insulator, influences mutual inductor dielectric loss very big.Since insulator body does not control on dielectric loss
Standard and method, be controlled by when can only lean on mutual inductor manufacture test.But when mutual inductor finished product dielectric loss is unqualified, it will produce
Higher rework cost.Therefore, it is necessary to invent a kind of method and control standard that Dielectric Loss Test is carried out to insulator body.
The content of the invention
The object of the present invention is to provide a kind of method for judging whether insulator dielectric loss is qualified, by being to mutual inductor parts
Insulator body carries out controlling test in advance, solves the above problem existing for background technology.
The technical scheme is that：
A kind of method for judging whether insulator dielectric loss is qualified, step are as follows：First by insulator wiped clean and dry, try during experiment
Frock is tested as two, is fastened around respectively at the upper and lower opening of insulator, two test tools are tested by signal wire and dielectric loss
Instrument is connected, and dielectric loss measuring instrument applies 3kV voltages, tests the dielectric loss value of insulator, if no more than 2.5%, judges that it will not
Cause mutual inductor finished product dielectric loss exceeded.
The test tool is endless metal belt.
A kind of method for judging whether insulator dielectric loss is qualified, step are as follows：First by the mucilage binding with metal flange during experiment
Insulator wiped clean is simultaneously dried, and two signal lines are connected on the metal flange at glue bonding porcelain sleeve upper and lower opening, two letters
Number line is connected with dielectric loss measuring instrument, and dielectric loss measuring instrument applies 3kV voltages, tests the dielectric loss value of insulator, judges that can it lead
Cause mutual inductor finished product dielectric loss exceeded.
Test tool is separately fixed at insulator during use（Insulator should be clean and dry that moisture and impurity are to porcelain
The influence for covering dielectric loss is very big）At upper and lower opening, dielectric loss measuring instrument is connected to by signal wire（If the mucilage binding porcelain with metal flange
Signal wire, can be connected directly between on metal flange by set）, apply the dielectric loss value of 3kV voltage tester insulator bodies, judge that can it
Cause mutual inductor finished product dielectric loss exceeded.Tested by substantial amounts of exemplar, drawn more accurately inner controlling standard of enterprise, i.e. " porcelain
It is sleeved on the body dielectric loss value after wiping and drying and is no more than 2.5% ".
The positive effect of the present invention：It can judge that can insulator body dielectric loss value cause mutual inductor finished product dielectric loss to surpass in advance
Mark, greatly reduces rework cost, eliminates hidden danger of quality.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention one；
In figure：Insulator 1, test tool 2, dielectric loss measuring instrument 3.
Embodiment
The present invention is described further with reference to the accompanying drawings and examples：
With reference to attached drawing 1, the embodiment of the present invention one：
A kind of method for judging whether insulator dielectric loss is qualified, step are as follows：First by 1 wiped clean of insulator and dried during experiment,
Test tool 2 is two, is fastened around respectively at the upper and lower opening of insulator, two test tools 2 pass through signal wire and dielectric loss
Tester 3 is connected, and dielectric loss measuring instrument 3 applies 3kV voltages, tests the dielectric loss value of insulator 1, judges that can it cause mutual inductor
Finished product dielectric loss is exceeded.
The test tool 2 is endless metal belt.
The embodiment of the present invention two：A kind of method for judging whether insulator dielectric loss is qualified, step are as follows：First by band during experiment
The glue bonding porcelain sleeve wiped clean of metal flange is simultaneously dried, and two signal lines are connected to the metal at glue bonding porcelain sleeve upper and lower opening
On flange, two signal lines are connected with dielectric loss measuring instrument 3, and dielectric loss measuring instrument 3 applies 3kV voltages, test Jie of insulator 1
Damage value, judges that can it cause mutual inductor finished product dielectric loss exceeded.
Claims (3)
- A kind of 1. method for judging whether insulator dielectric loss is qualified, it is characterised in that following steps：First by insulator during experiment（1）Wiped clean is simultaneously dried, test tool（2）For two, insulator is fastened around respectively At upper and lower opening, two test tools（2）Pass through signal wire and dielectric loss measuring instrument（3）It is connected, dielectric loss measuring instrument（3）Apply 3kV voltages, test insulator（1）Dielectric loss value, if no more than 2.5%, judge that it will not cause mutual inductor finished product dielectric loss to surpass Mark.
- A kind of 2. method for judging whether insulator dielectric loss is qualified according to claim 1, it is characterised in that：The experiment work Dress（2）For endless metal belt.
- A kind of 3. method for judging whether insulator dielectric loss is qualified, it is characterised in that following steps：First will be with metal method during experiment Blue glue bonding porcelain sleeve, wiped clean are simultaneously dried, and two signal lines are connected to the metal flange at glue bonding porcelain sleeve upper and lower opening On, two signal lines are and dielectric loss measuring instrument（3）It is connected, dielectric loss measuring instrument（3）Apply 3kV voltages, test insulator（1）'s Dielectric loss value, judges that can it cause mutual inductor finished product dielectric loss exceeded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161514.5A CN107917936A (en) | 2017-11-21 | 2017-11-21 | A kind of method for judging whether insulator dielectric loss is qualified |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161514.5A CN107917936A (en) | 2017-11-21 | 2017-11-21 | A kind of method for judging whether insulator dielectric loss is qualified |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107917936A true CN107917936A (en) | 2018-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711161514.5A Pending CN107917936A (en) | 2017-11-21 | 2017-11-21 | A kind of method for judging whether insulator dielectric loss is qualified |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446467A (en) * | 2008-12-25 | 2009-06-03 | 宁波华通电器集团股份有限公司 | Multifunctional sealing heat insulation box for producing high voltage oil immersion transformer |
| CN102136359A (en) * | 2011-01-10 | 2011-07-27 | 东北电力科学研究院有限公司 | Novel oil immersed inverted vertical current transformer and insulation detection method thereof |
| CN203025310U (en) * | 2012-12-20 | 2013-06-26 | 国网电力科学研究院武汉南瑞有限责任公司 | High-voltage sleeve insulation detection device based on frequency domain dielectric spectrum |
| CN204926932U (en) * | 2015-09-15 | 2015-12-30 | 江苏思源赫兹互感器有限公司 | Oily inverted type current transformer insulator |
-
2017
- 2017-11-21 CN CN201711161514.5A patent/CN107917936A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446467A (en) * | 2008-12-25 | 2009-06-03 | 宁波华通电器集团股份有限公司 | Multifunctional sealing heat insulation box for producing high voltage oil immersion transformer |
| CN102136359A (en) * | 2011-01-10 | 2011-07-27 | 东北电力科学研究院有限公司 | Novel oil immersed inverted vertical current transformer and insulation detection method thereof |
| CN203025310U (en) * | 2012-12-20 | 2013-06-26 | 国网电力科学研究院武汉南瑞有限责任公司 | High-voltage sleeve insulation detection device based on frequency domain dielectric spectrum |
| CN204926932U (en) * | 2015-09-15 | 2015-12-30 | 江苏思源赫兹互感器有限公司 | Oily inverted type current transformer insulator |
Non-Patent Citations (3)
| Title |
|---|
| 何文林: "《互感器与电容器》", 30 June 2003, 中国电力出版社 * |
| 劳动和社会保障部 等: "《变电设备安装工》", 30 April 2003 * |
| 赵建洲 等: ""电流互感器末屏损耗测试稳定性分析与研究"", 《电力电容器与无功补偿》 * |
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Application publication date: 20180417 |