CN102735582A - Method for measuring contamination degree of surface of electric power insulator - Google Patents
Method for measuring contamination degree of surface of electric power insulator Download PDFInfo
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- CN102735582A CN102735582A CN2012101797604A CN201210179760A CN102735582A CN 102735582 A CN102735582 A CN 102735582A CN 2012101797604 A CN2012101797604 A CN 2012101797604A CN 201210179760 A CN201210179760 A CN 201210179760A CN 102735582 A CN102735582 A CN 102735582A
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Abstract
The invention discloses a method for measuring the contamination degree of the surface of an electric power insulator. The method comprises the following steps: scrubbing and sampling contaminants on the surface of the insulator with a cleaning and sampling cloth, weighing to obtain a mass difference m1 before and after sampling with the cleaning and sampling cloth, immersing the contaminant-contained sampling cloth after sampling into deionized water to dissolve soluble contaminants, measuring the conductivity of the resulting contaminant-containing deionized solution, converting to a soluble contaminant mass m2, converting to a salt deposit density, calculating to obtain the insoluble contaminant mass m1-m2, and converting to a dust density to obtain the contamination degree of the surface of the electric power insulator. Compared with the prior art, the method of the invention breaks measuring sequences of traditional measuring methods, uses drying and weighing to substitute filtering and drying in the traditional methods, and has the advantages of effective reduction of sampling and measuring errors, sampling and measuring period shortening, and convenience for grasp and popularization.
Description
Technical field
The present invention relates to power external insulation filth degree measuring technique, specifically is a kind of electric insulator surface filth degree measuring method.
Background technology
Insulator is a kind of insulation firmware the most frequently used on the electricity overhead power transmission line, pollutions such as long term exposure in air, is subject to industrial pollution or nature is saline and alkaline, dust.When the long-pending dirt of insulator surface acquires a certain degree, under wet condition, the insulator surface filth dissolving of making moist, the conductive channel of formation short circuit insulator causes pollution flashover accident.In recent years, along with atmospheric environment worsens day by day, pollution increasingly sharpens, and causes the pollution flashover accident of electric system frequently to take place.According to statistics, pollution flashover accident has been occupied second in total accident number of times of electrical network, be only second to the damage to crops caused by thunder accident, and its loss is 10 times of the damage to crops caused by thunder accident.Therefore, the prevention pollution flashover accident becomes one of main task that guarantees safe operation of power system.
At present, the embodiment or the implementation cycle of pollution flashover precautionary measures commonly used, all need confirm based on insulator surface filth degree, therefore measure insulator surface filth degree quickly and accurately, become one of top priority that guarantees safe operation of power system.And traditional sampling and measuring method is, and is filthy with the washed with de-ionized water insulator surface, and it is close that the conductivity of measuring this filth solution converses salt; Re-use the filthy solution of filter paper filtering, the conversion ash discharge of poor quality of filter paper was close before and after weighing was filtered.But in test operation, use the washed with de-ionized water insulator surface filthy, cause filthy solution to splash easily, produce measuring error; Use the filthy solution of filter paper filtering, need the inconvenience of filter operation several times, and filter cycle is longer, cause error because of the filthy sedimentation of air easily.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of electric insulator surface filth degree measuring method is provided, can effectively reduce the sampling and measuring error, and shorten the sampling and measuring cycle.
The present invention realizes through following technical proposals: a kind of electric insulator surface filth degree measuring method; It is characterized in that using clear wiping of cleaning sampling cloth to get the insulator surface filth; Weighing is cleaned before the sampling of sampling cloth and the m1 of poor quality after taking a sample; With making the filthy dissolving of solubility in the sampling cloth immersion deionized water that contains dirt after the sampling, it is close to measure the deionized water solution conductivity conversion solubility filth quality m2 that contains filth and the salify that converts, and the filthy quality of insolubility is m1-m2; And be converted into the ash close, obtain electric insulator surface filth degree.
Above-mentioned electric insulator surface filth degree sampling and measuring method, concrete steps are following:
(1) will clean sampling cloth and put into corresponding dixie cup, again dixie cup put into 60 ℃ of constant temperature drying case oven dry 2 hours; After the oven dry, use the quality m1 and the record of electronic balance weighing dixie cup and cleaning sampling cloth;
(2) at the surface sprinkling 1ml-2ml deionized water of insulator of waiting to take a sample, it is low to guarantee that insulator surface does not have drop;
(3) use cleaning sampling cloth that the above-mentioned insulator that sprayed deionized water is wiped sampling clearly, obtain containing filthy sampling cloth;
(4) the above-mentioned sampling cloth that contains filth is put into corresponding dixie cup, again dixie cup is put into 60 ℃ of constant temperature drying casees oven dry 4 hours; After the oven dry, use electronic balance (measuring accuracy 0.0001g) weighing dixie cup and contain filthy sampling cloth quality m2 and record;
(5) the quality m3 of filth of calculating solubility and insolubility filth degree, m3=m2-m1;
(6) will contain filthy sampling cloth and immerse in the deionized water, fully stir, make that the solubility filth fully is dissolved in the deionized water on the sampling cloth with glass bar; Measurement contains filthy deionized water solution conductivity and changes the filthy quality m4 of solubility into, and close divided by the long-pending conversion salt of insulator surface with this quality; (7) the quality m5 of calculating insolubility filth degree, m5=m3-m4, and close with this quality divided by the long-pending ash that converts of insulator surface.
Compared with prior art the present invention's measuring sequence of measuring method that breaks traditions is used oven dry to weigh and is replaced the filtering drying in the classic method, effectively reduces the sampling and measuring error, shortens the sampling and measuring cycle, is more convenient for grasping and promoting.
Embodiment
Below in conjunction with specific embodiment the present invention is done further concrete detailed description the in detail, but embodiment of the present invention is not limited thereto, the technological parameter for not indicating especially can carry out with reference to routine techniques.
Embodiment
Electric insulator surface filth degree measuring method of the present invention; Use clear wiping of cleaning sampling cloth to get the insulator surface filth, before the sampling of weighing cleaning sampling cloth with sampling after m1 of poor quality, immerse and make the filthy dissolving of solubility in the deionized water containing dirty sampling cloth after the sampling; Measurement contain the filthy quality m2 of filthy deionized water solution conductivity conversion solubility and the salify that converts close; And the filthy quality of insolubility is m1-m2, and it is close to be converted into ash, obtains electric insulator surface filth degree.
Above-mentioned electric insulator surface filth degree sampling and measuring method, specifically can realize through following step:
(1) will clean sampling cloth and put into corresponding dixie cup, again dixie cup put into 60 ℃ of constant temperature drying case oven dry 2 hours; After the oven dry, use the quality m1 and the record of electronic balance weighing dixie cup and cleaning sampling cloth;
(2) at the surface sprinkling 1ml-2ml deionized water of insulator of waiting to take a sample, it is low to guarantee that insulator surface does not have drop;
(3) use cleaning sampling cloth that the above-mentioned insulator that sprayed deionized water is wiped sampling clearly, obtain containing filthy sampling cloth;
(4) the above-mentioned sampling cloth that contains filth is put into corresponding dixie cup, again dixie cup is put into 60 ℃ of constant temperature drying casees oven dry 4 hours; After the oven dry, use electronic balance (measuring accuracy 0.0001g) weighing dixie cup and contain filthy sampling cloth quality m2 and record;
(5) the quality m3 of filth of calculating solubility and insolubility filth degree, m3=m2-m1;
(6) will contain filthy sampling cloth and immerse in the deionized water, fully stir, make that the solubility filth fully is dissolved in the deionized water on the sampling cloth with glass bar; Measurement contains filthy deionized water solution conductivity and changes the filthy quality m4 of solubility into, and close divided by the long-pending conversion salt of insulator surface with this quality;
Table 1: insulator surface is long-pending uses scale with deionized water
(7) the quality m5 of calculating insolubility filth degree, m5=m3-m4, and close with this quality divided by the long-pending ash that converts of insulator surface.
Claims (2)
1. electric insulator surface filth degree measuring method; It is characterized in that using clear wiping of cleaning sampling cloth to get the insulator surface filth; Weighing is cleaned before the sampling of sampling cloth and the m1 of poor quality after taking a sample; With making the filthy dissolving of solubility in the sampling cloth immersion deionized water that contains dirt after the sampling, it is close to measure the deionized water solution conductivity conversion solubility filth quality m2 that contains filth and the salify that converts, and the filthy quality of insolubility is m1-m2; And be converted into the ash close, obtain electric insulator surface filth degree.
2. electric insulator surface filth degree sampling and measuring method according to claim 1 is characterized in that measuring process is following:
(1) will clean sampling cloth and put into corresponding dixie cup, again dixie cup put into 60 ℃ of constant temperature drying case oven dry 2 hours; After the oven dry, use the quality m1 and the record of electronic balance weighing dixie cup and cleaning sampling cloth;
(2) at the surface sprinkling 1ml-2ml deionized water of insulator of waiting to take a sample, it is low to guarantee that insulator surface does not have drop;
(3) use cleaning sampling cloth that the above-mentioned insulator that sprayed deionized water is wiped sampling clearly, obtain containing filthy sampling cloth;
(4) the above-mentioned sampling cloth that contains filth is put into corresponding dixie cup, again dixie cup is put into 60 ℃ of constant temperature drying casees oven dry 4 hours; After the oven dry, use electronic balance (measuring accuracy 0.0001g) weighing dixie cup and contain filthy sampling cloth quality m2 and record;
(5) the quality m3 of filth of calculating solubility and insolubility filth degree, m3=m2-m1;
(6) will contain filthy sampling cloth and immerse in the deionized water, fully stir, make that the solubility filth fully is dissolved in the deionized water on the sampling cloth with glass bar; Measurement contains filthy deionized water solution conductivity and changes the filthy quality m4 of solubility into, and close divided by the long-pending conversion salt of insulator surface with this quality;
(7) the quality m5 of calculating insolubility filth degree, m5=m3-m4, and close with this quality divided by the long-pending ash that converts of insulator surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101797604A CN102735582A (en) | 2012-06-01 | 2012-06-01 | Method for measuring contamination degree of surface of electric power insulator |
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| CN2012101797604A CN102735582A (en) | 2012-06-01 | 2012-06-01 | Method for measuring contamination degree of surface of electric power insulator |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153653A (en) * | 2016-08-15 | 2016-11-23 | 华南理工大学 | A kind of grind the method that toughened glass insulator carries out X-ray diffraction analysis |
| CN106525551A (en) * | 2016-11-24 | 2017-03-22 | 国网山东省电力公司电力科学研究院 | Method for preparing soluble salt in artificial pollution test |
| CN107515362A (en) * | 2017-08-08 | 2017-12-26 | 江苏大学 | A kind of insulator dirty degree monitoring and method for early warning based on leak current characteristic |
| CN108732060A (en) * | 2018-04-28 | 2018-11-02 | 国网山东省电力公司电力科学研究院 | A method of measuring insulator dirty degree |
| CN111189741A (en) * | 2020-03-10 | 2020-05-22 | 南京卓实电气有限责任公司 | Device and method for detecting insulator ash density by high-temperature steam method |
| CN111579943A (en) * | 2020-05-21 | 2020-08-25 | 国网山东省电力公司电力科学研究院 | Method for testing surface pollution pressure resistance of insulator coated with anti-pollution flashover coating |
| CN112147030A (en) * | 2020-09-26 | 2020-12-29 | 国网山东省电力公司电力科学研究院 | Device and method for detecting dirt deposition amount of external insulation part |
| CN112326493A (en) * | 2020-11-14 | 2021-02-05 | 安徽楚江科技新材料股份有限公司 | Detection apparatus for copper strips surface residual oil volume |
| CN112964756A (en) * | 2021-02-03 | 2021-06-15 | 浙江屹飞电力科技有限公司 | Surface conductivity-based method for correcting salt density of natural pollution test of insulator |
| CN114112474A (en) * | 2021-11-11 | 2022-03-01 | 国网青海省电力公司电力科学研究院 | Sampling structure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153653A (en) * | 2016-08-15 | 2016-11-23 | 华南理工大学 | A kind of grind the method that toughened glass insulator carries out X-ray diffraction analysis |
| CN106525551A (en) * | 2016-11-24 | 2017-03-22 | 国网山东省电力公司电力科学研究院 | Method for preparing soluble salt in artificial pollution test |
| CN107515362A (en) * | 2017-08-08 | 2017-12-26 | 江苏大学 | A kind of insulator dirty degree monitoring and method for early warning based on leak current characteristic |
| CN108732060A (en) * | 2018-04-28 | 2018-11-02 | 国网山东省电力公司电力科学研究院 | A method of measuring insulator dirty degree |
| CN111189741A (en) * | 2020-03-10 | 2020-05-22 | 南京卓实电气有限责任公司 | Device and method for detecting insulator ash density by high-temperature steam method |
| CN111579943A (en) * | 2020-05-21 | 2020-08-25 | 国网山东省电力公司电力科学研究院 | Method for testing surface pollution pressure resistance of insulator coated with anti-pollution flashover coating |
| CN112147030A (en) * | 2020-09-26 | 2020-12-29 | 国网山东省电力公司电力科学研究院 | Device and method for detecting dirt deposition amount of external insulation part |
| CN112326493A (en) * | 2020-11-14 | 2021-02-05 | 安徽楚江科技新材料股份有限公司 | Detection apparatus for copper strips surface residual oil volume |
| CN112964756A (en) * | 2021-02-03 | 2021-06-15 | 浙江屹飞电力科技有限公司 | Surface conductivity-based method for correcting salt density of natural pollution test of insulator |
| CN114112474A (en) * | 2021-11-11 | 2022-03-01 | 国网青海省电力公司电力科学研究院 | Sampling structure |
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Application publication date: 20121017 |