CN103278540A - Method for measuring equivalent salt deposit density of high-voltage insulator - Google Patents
Method for measuring equivalent salt deposit density of high-voltage insulator Download PDFInfo
- Publication number
- CN103278540A CN103278540A CN201310148893XA CN201310148893A CN103278540A CN 103278540 A CN103278540 A CN 103278540A CN 201310148893X A CN201310148893X A CN 201310148893XA CN 201310148893 A CN201310148893 A CN 201310148893A CN 103278540 A CN103278540 A CN 103278540A
- Authority
- CN
- China
- Prior art keywords
- measurement point
- insulator
- local surfaces
- conductivity
- equivalent salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 56
- 150000003839 salts Chemical class 0.000 title claims abstract description 55
- 238000005259 measurement Methods 0.000 claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 30
- 229910052573 porcelain Inorganic materials 0.000 claims description 19
- 239000000725 suspension Substances 0.000 claims description 19
- 239000012153 distilled water Substances 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000001739 density measurement Methods 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 229920002379 silicone rubber Polymers 0.000 description 6
- 239000004945 silicone rubber Substances 0.000 description 6
- 230000005661 hydrophobic surface Effects 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000002242 deionisation method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 229920000260 silastic Polymers 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention provides a method for measuring equivalent salt deposit density of a high-voltage insulator, which comprises the following steps: uniformly partitioning the surface of a high-voltage insulator to be measured, and randomly selecting one position in each area as a measuring point; the hydrophobicity at the measuring point is eliminated; spraying a water film at the measuring point after the hydrophobicity is eliminated; measuring local surface conductivity at the measurement points; obtaining an average local surface conductivity according to the local surface conductivities at the plurality of measurement points; and obtaining the equivalent salt deposit density value of the insulator according to the average local surface conductivity. The method provided by the invention realizes the measurement of the equivalent salt density of the insulator with the surface with strong hydrophobicity under the condition of not damaging the structure of the insulator pollution layer, so that researchers can carry out long-term equivalent salt density measurement on the same test point, and the pollution accumulation rule can be conveniently summarized; and the measuring method avoids errors caused by other methods in the transportation process, and improves the measuring accuracy.
Description
Technical field
The present invention relates to high pressure and insulation technology field, relate in particular to a kind of method that the high-tension insulator equivalent salt density is measured.
Background technology
Because the deterioration year by year of environmental baseline and the factors such as rising of electric pressure make electric system to preventing having higher requirement of pollution flashover accident.The insulator surface equivalent salt density is a key factor that influences pollution flashover voltage, and therefore, it is very necessary that its measurement is monitored.In the high-tension line, composite insulator (high temperature vulcanized silicone rubber, HTV) and spraying room temperature vulcanized silicone rubber (room temperature vulcanized silicone rubber, RTV) electric porcelain insulator of material is widely used, because the insulator surface of these silastic materials has good hydrophobic nature and distinctive migration of hydrophobicity, make it have good anti-fouling flashover performance.
Measurement at the equivalent salt density of this strong hydrophobic surface mainly contains two kinds of methods at present: 1, the method for sampling towel sampled measurements.Concrete method step comprises: put on one's gloves, take out sampling towel from sealing bag, respectively wiping insulator upper and lower surface.With many towel wiping insulator surfaces repeatedly of sampling, all transfer on the sampling towel until filth, then according to the surface area of survey insulator, measure certain deionized water in container, the filth on the sampling towel is fully soluble in water, the conductivity of measurement solution, and record temperature, electrical conductivity of solution is converted value under 20 degrees centigrade, and by salt content---the conductivity curve is found salt content, according to salt content and the long-pending equivalent salt density value that calculates of insulator surface.2, scrub method.Concrete method step is: according to the surface area of insulator to be measured, prepare a certain amount of distilled water, with sponge immersion back wiping insulator surface, then the dirt on the sponge is washed till in the beaker, repeat this operation 3-5 time, after then the soiling solution in the beaker fully being stirred, measure the conductivity of solution, and the record temperature, electrical conductivity of solution is converted value under 20 degrees centigrade, and by salt content---the conductivity curve is found salt content, according to salt content and the long-pending equivalent salt density value that calculates of insulator surface.
Two kinds of measurements have the method for the insulator equivalent salt density of strong hydrophobic surface, all be destructive to the insulator surface pollution layer, therefore they can only measure the equivalent salt density of a period of time insulator surface contamination amount, can not to filthy equivalent salt density value over time process make description, the contamination rule of strong hydrophobic nature insulator surface can not well be described out.
Summary of the invention
The present invention proposes a kind of method that the high-tension insulator equivalent salt density is measured, realized under the condition of not destroying the insulator surface pollution layer, equivalent salt density value to insulator surface is measured, and can monitor over time the insulator surface equivalent salt density, improve the accuracy of measuring.Described technical scheme is as follows:
A kind of method that the high-tension insulator equivalent salt density is measured comprises:
High pressure insulator surface to be measured is divided into a plurality of zones equably, in each zone, chooses a place respectively arbitrarily as measurement point;
Eliminate the hydrophobic nature of described measurement point;
Measurement point spray water membrane after described elimination hydrophobic nature;
Measure the local surfaces conductivity of described measurement point;
According to the local surfaces conductivity of a plurality of described measurement point, obtain average local surfaces conductivity;
Obtain the equivalent salt density value of insulator according to described average local surfaces conductivity.
Further, described high pressure insulator surface to be measured is divided into 12 zones at least.
Further, adopt porcelain earth suspension, distilled water or high pressure plasma discharge rifle to eliminate the hydrophobic nature of described measurement point.
Further, the method that adopts described porcelain earth suspension to eliminate the hydrophobic nature of described measurement point comprises:
Drip a certain amount of porcelain earth suspension in described measurement point;
After some seconds, suspension is blotted.
Further, the method that adopts described distilled water to eliminate the hydrophobic nature of described measurement point comprises:
Drip a certain amount of distilled water in described measurement point;
After some seconds, distilled water is blotted.
Further, the method that adopts described high pressure plasma discharge rifle to eliminate the hydrophobic nature of described measurement point comprises, high pressure plasma dielectric barrier discharge (DBD) rifle was discharged 30 seconds-1 minute to the measurement point of choosing.
Further, the porcelain earth suspension that is 0.3～0.7ml in described measurement point drop volume scope.
Further, be the distilled water of 0.3～0.7ml in described measurement point drop volume scope.
Further, adopt insulator local surfaces conductivity measuring apparatus to measure the local surfaces conductivity of described measurement point.
Further, the local surfaces conductivity that adopts insulator local surfaces conductivity measuring apparatus to measure described measurement point comprises:
Select a place to spray the measurement point of moisture film;
The two poles of the earth of the measuring sonde of described insulator local surfaces conductivity measuring apparatus are contacted with the diverse location of selected test point;
Read measured value.
Further, the equivalent salt density value that obtains insulator according to described average local surfaces conductivity comprises:
Temperature during according to measurement, the average local surfaces conductivity when converting described average local surfaces conductivity to 20 ℃;
Average local surfaces conductivity obtains the equivalent salt density value of measurement point during according to 20 ℃ of described measurement point.
Further, the temperature during according to measurement, utilize formula:
Average local surfaces conductivity when converting described average local surfaces conductivity to 20 ℃.Wherein, σ
P20When representing 20 ℃, the conductivity of described insulator local surfaces, σ
PtThe conductivity of the described insulator local surfaces that expression is measured, the temperature when t represents to measure.
Further, average local surfaces conductivity during according to 20 ℃ of described measurement point, utilize formula:
Obtain the equivalent salt density value of measurement point, wherein,
Average local surfaces conductivity when being 20 ℃, M is the equivalent salt density value of measurement point.
Further, utilize high pressure plasma dielectric barrier discharge (DBD) rifle, use the sparking voltage in 10KV～15KV scope that the measurement point of choosing was discharged 30 seconds-1 minute.
A kind of method that the high-tension insulator equivalent salt density is measured provided by the invention, realized under the condition of not destroying insulator pollution layer structure, insulator equivalent salt density with strong hydrophobic surface is measured, make it possible to that identical test point is carried out long-term equivalent salt density and measure, be convenient to sum up the rule of filthy accumulation; And the error that this measuring method has avoided additive method to bring in transportation has improved the accuracy of measuring.
Description of drawings
Fig. 1 is the method flow diagram to the measurement of high-tension insulator equivalent salt density that the embodiment of the invention provides;
Fig. 2 is the subregion synoptic diagram that each sheet full skirt to insulator that the embodiment of the invention provides carries out.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.Be understandable that specific embodiment described herein only is used for explaining the present invention, but not limitation of the invention.
Fig. 1 is the method flow diagram to the measurement of high-tension insulator equivalent salt density that the embodiment of the invention provides.This method comprises:
Step 101: high pressure insulator surface to be measured is divided into a plurality of zones equably, in each zone, chooses a place respectively arbitrarily as measurement point.
Insulator comprises the multi-disc full skirt, for each sheet full skirt, adopt the partition method of four districts, three rings, Fig. 2 is the subregion synoptic diagram that each sheet full skirt to insulator that the embodiment of the invention provides carries out, as shown in the figure, a full skirt sheet to high-tension insulator to be measured carries out subregion, be a district with insulator according to per 90 ° generally, by outside equidistant three rings that are divided in the full skirt center, tell 12 zones altogether, distinguish the boundary line of encircling as dotted line among the figure for branch, still, in the measurement of reality, do not need drawing of minute boundary line reality of differentiation ring next.In each zone, choose a place respectively arbitrarily as measurement point, when measuring, measurement point will be chosen 12 at least, and measurement point can not be too concentrated, preferably can spread out uniformly, avoids because too concentrated cause measuring inaccurate of measurement point.
Step 102: the hydrophobic nature of eliminating described measurement point.
In the high-tension line, composite insulator (high temperature vulcanized silicone rubber, HTV) and spraying room temperature vulcanized silicone rubber (room temperature vulcanized silicone rubber, RTV) electric porcelain insulator of material is widely used, because the insulator surface of these silastic materials has good hydrophobic nature and distinctive migration of hydrophobicity, make it have good anti-fouling flashover performance.Can reduce the generation of pollution flashover accident effectively.
For long-term monitoring is carried out in external insulating surface filth, need to use the local surfaces conductivity meter to measure, and when using the local surfaces conductivity meter to measure, need form continuously moisture film uniformly at insulator surface, forming the required continuous moisture film of measurement at hydrophobic surface has any problem, need to consider when measuring, how to eliminate the hydrophobic nature of staining insulator local surfaces to be measured, and then measure in measurement point.
Embodiments of the invention preferably adopt any one in porcelain earth suspension, distilled water or three kinds of methods of high pressure plasma discharge rifle, eliminate the hydrophobic nature of measurement point.
The method that adopts the porcelain earth suspension to eliminate the hydrophobic nature of measurement point comprises: drip a certain amount of porcelain earth suspension in selected measurement point, the scope of the volume of porcelain earth suspension is 0.3～0.7ml; After 1～2 second, suspension is blotted.Pollution layer hydrophobic nature at this moment at the water spots place is eliminated, and the film of can spraying water is measured.
The method that adopts distilled water to eliminate the hydrophobic nature of described measurement point comprises: drip a certain amount of distilled water in selected measurement point, the scope of the volume of distilled water is 0.3～0.7ml; After 1～2 second, distilled water is blotted.Pollution layer hydrophobic nature at this moment at the water spots place is eliminated, and the film of can spraying water is measured.
Adopt above two kinds of methods of eliminating hydrophobic nature, measurement to the equivalent salt density value of pollution layer does not have influence, because concerning on-the-spot filth, (salt in 1～2s) in the filth is difficult to dissolving, so can impact hardly measurement result in the short time to drip porcelain earth suspension and distilled water.
The reason that the method for employing porcelain earth suspension and distilled water can be eliminated hydrophobic nature is: the drop of large volume, because the influence of himself gravity, can weaken the interfacial tension effect between liquid-solid boundary, in bigger contact area of the obsessive formation of solid surface, make that the appropriate section pollution layer is wetted.Because the hydrophobicity performance of dry interface and wet front there are differences, after pollution layer is wetting, contact angle hysteresis, in addition, solid surface has had moisture film, is the equal of the interface interaction of drop and moisture film, make contact angle become very little, these two reasons make hydrophobicity performance significantly reduce.For the porcelain earth suspension, except above reason, also because the porcelain earth suspension can form in the water spots, cover the filth of last layer porcelain earth in the solid interface contact process, this also is the reason that surface hydrophobicity can be reduced.
The method that adopts high pressure plasma discharge rifle to eliminate the hydrophobic nature of measurement point comprises, with high pressure plasma DBD(Dielectric Barrier Discharges, dielectric barrier discharge) the discharge rifle discharged 30 seconds-1 minute to the measurement point of choosing, and the scope of the sparking voltage of high pressure plasma discharge rifle is 10KV～15KV.
The reason that adopts high pressure plasma discharge rifle to eliminate hydrophobic nature is: in the air discharge of plasma in low temperature is carried out on the pollution layer surface, can produce a large amount of active particles, as positive ion, elemental oxygen, ozone, oxides of nitrogen, neutral particle, excited state molecule, free radical and ultraviolet radiation etc., these active particles can destroy some group mechanisms that cause pollution layer to have hydrophobic nature, form some hydrophilic radicals, make the pollution layer at this place become water wettability.
Step 103: the measurement point spray water membrane after described elimination hydrophobic nature.
After the hydrophobic nature of having eliminated selected measurement point, at measurement point spray one deck deionization moisture film.The reason of water spray film is for the salt in the insulator surface dirt is dissolved in the moisture film, so that follow-up measurement.
Step 104: the local surfaces conductivity of measuring measurement point.
Embodiments of the invention preferably adopt insulator local surfaces conductivity measuring apparatus to measure the local surfaces conductivity of measurement point.
Particularly, the local surfaces conductivity that adopts insulator local surfaces conductivity measuring apparatus to measure described measurement point comprises: select a place to spray the measurement point of moisture film; The two poles of the earth of the measuring sonde of insulator local surfaces conductivity measuring apparatus are contacted with the diverse location of the test point of selecting; Read measured value.
The principle of the equipment utilization electric resistance partial pressure of the measurement insulator local surfaces conductivity that embodiments of the invention adopt is measured, and has mainly comprised RC sine-wave oscillation, the measurement of measuring resistance dividing potential drop, the conversion of RMS real effective, MSP430 single-chip microcomputer acquisition process, 12864 liquid crystal displays etc.After the insulator surface hydrophobic nature is eliminated, spray layer of even deionization moisture film at measurement point, adopt device measuring then, the measuring sonde of measurement mechanism is touched the local surfaces conductivity that insulator surface can be measured this place, obtain the average local surfaces conductivity of a plurality of measurement points then, after carrying out temperature correction again, namely can be converted into the close value of equivalent local salt of insulator.Certainly, also can be advanced trip temperature proofread and correct, the average local surfaces conductivity when obtaining 20 ℃ of a plurality of measurement point again is converted into the close value of equivalent local salt of insulator at last.
This method is when measuring, as long as probe touches insulator surface, therefore can not damage the insulator surface pollution layer, can carry out the measurement of long-term equivalent salt density value to identical measurement point, obtains the time dependent rule of equivalent salt density value.
The value that insulator local surfaces conductivity measuring apparatus measures is the resistance value of insulator local surfaces, represents the resistance value of insulator local surfaces with R, and being converted to the local surfaces conductivity is σ
Pt, then have:
Wherein, K is the coefficient relevant with measuring sonde, with shape and the structure of measuring sonde relation is arranged, and different measuring sondes has different K values.
Step 105: according to the local surfaces conductivity of a plurality of described measurement point, obtain average local surfaces conductivity.
In order to make the result reflect the value of insulator surface equivalent salt density more accurately, some measurement points of multiselect of should trying one's best are measured each point, and are obtained mean value, generally at least 12 measurement points are measured.
Step 106: the equivalent salt density value that obtains insulator according to described average local surfaces conductivity.
Step 106 specifically comprises: step 1061～step 1062.
Step 1061: the temperature during according to measurement, the average local surfaces conductivity when converting average local surfaces conductivity to 20 ℃.
Because the local surfaces conductivity of insulator changes with variation of temperature, the local surfaces conductivity of the insulator of calculating according to following formula is the local surfaces conductivity under the temperature when measuring just, measured local surfaces conductivity was carried out unified conversion, the local surfaces conductivity when present embodiment preferably all changes into 20 ℃ with measured local surfaces conductivity when we needed different temperatures.
Temperature during according to measurement, utilize formula:
The local surfaces conductivity of measuring is proofreaied and correct, the local surfaces conductivity when converting 20 ℃ to, wherein, σ
P20When representing 20 ℃, the local surfaces conductivity of described insulator, σ
PtThe local surfaces conductivity of the described insulator that expression is measured,, the temperature when expression is measured.
Step 1062: average local surfaces conductivity obtains the equivalent salt density value of measurement point during according to 20 ℃ of described measurement point.
Average local surfaces conductivity during according to 20 ℃ of measurement point, utilize formula:
Obtain the equivalent salt density value of measurement point, wherein,
Average local surfaces conductivity when being 20 ℃, M is the equivalent salt density value of measurement point.
A kind of method that the high-tension insulator equivalent salt density is measured provided by the invention, realized under the condition of not destroying insulator pollution layer structure, insulator equivalent salt density with strong hydrophobic surface is measured, make the researchist to carry out long-term equivalent salt density to identical test point and measure, be convenient to sum up the rule of filthy accumulation; And the error that this measuring method has avoided additive method to bring in transportation has improved the accuracy of measuring.
It below only is the explanation of doing at the preferred embodiments of the present invention and know-why thereof; and be not the restriction that technology contents of the present invention is carried out; anyly be familiar with those skilled in the art in technical scope disclosed in this invention; the variation of being expected easily or replacement all should be encompassed in protection scope of the present invention.
Claims (14)
1. the method that the high-tension insulator equivalent salt density is measured is characterized in that, comprising:
High pressure insulator surface to be measured is divided into a plurality of zones equably, in each zone, chooses a place respectively arbitrarily as measurement point;
Eliminate the hydrophobic nature of described measurement point;
Measurement point spray water membrane after described elimination hydrophobic nature;
Measure the local surfaces conductivity of described measurement point;
According to the local surfaces conductivity of a plurality of described measurement point, obtain average local surfaces conductivity;
Obtain the equivalent salt density value of insulator according to described average local surfaces conductivity.
2. method according to claim 1 is characterized in that, described high pressure insulator surface to be measured is divided into 12 zones at least.
3. method according to claim 1 is characterized in that, adopts porcelain earth suspension, distilled water or high pressure plasma discharge rifle to eliminate the hydrophobic nature of described measurement point.
4. method according to claim 3 is characterized in that, the method that adopts described porcelain earth suspension to eliminate the hydrophobic nature of described measurement point comprises:
Drip a certain amount of porcelain earth suspension in described measurement point;
After some seconds, suspension is blotted.
5. method according to claim 3 is characterized in that, the method that adopts described distilled water to eliminate the hydrophobic nature of described measurement point comprises:
Drip a certain amount of distilled water in described measurement point;
After some seconds, distilled water is blotted.
6. method according to claim 3 is characterized in that, the method that adopts described high pressure plasma discharge rifle to eliminate the hydrophobic nature of described measurement point comprises, high pressure plasma dielectric barrier discharge (DBD) rifle was discharged 30 seconds-1 minute to the measurement point of choosing.
7. method according to claim 4 is characterized in that, is O.3～O.7ml porcelain earth suspension in described measurement point drop volume scope.
8. method according to claim 5 is characterized in that, is O.3～O.7ml distilled water in described measurement point drop volume scope.
9. method according to claim 1 is characterized in that, adopts insulator local surfaces conductivity measuring apparatus to measure the local surfaces conductivity of described measurement point.
10. method according to claim 9 is characterized in that, the local surfaces conductivity that adopts insulator local surfaces conductivity measuring apparatus to measure described measurement point comprises:
Select a place to spray the measurement point of moisture film;
The two poles of the earth of the measuring sonde of described insulator local surfaces conductivity measuring apparatus are contacted with the diverse location of selected test point;
Read measured value.
11. method according to claim 1 is characterized in that, the equivalent salt density value that obtains insulator according to described average local surfaces conductivity comprises:
Temperature during according to measurement, the average local surfaces conductivity when converting described average local surfaces conductivity to 20 ℃;
Average local surfaces conductivity obtains the equivalent salt density value of measurement point during according to 20 ℃ of described measurement point.
12. method according to claim 11 is characterized in that, the temperature during according to measurement is utilized formula:
Average local surfaces conductivity when converting described average local surfaces conductivity to 20 ℃, wherein, σ
P2OExpression 20.During C, the conductivity of described insulator local surfaces, σ
PtThe conductivity of the described insulator local surfaces that expression is measured,, the temperature when expression is measured.
13. method according to claim 12 is characterized in that, average local surfaces conductivity during according to 20 ℃ of described measurement point is utilized formula:
Obtain the equivalent salt density value of measurement point, wherein,
Average local surfaces conductivity when being 20 ℃, M is the equivalent salt density value of measurement point.
14. method according to claim 6 is characterized in that, utilizes high pressure plasma dielectric barrier discharge (DBD) rifle, uses the sparking voltage in 10KV～15KV scope that the measurement point of choosing was discharged 30 seconds-1 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310148893.XA CN103278540B (en) | 2013-04-25 | 2013-04-25 | Method for measuring equivalent salt deposit density of high-voltage insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310148893.XA CN103278540B (en) | 2013-04-25 | 2013-04-25 | Method for measuring equivalent salt deposit density of high-voltage insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103278540A true CN103278540A (en) | 2013-09-04 |
| CN103278540B CN103278540B (en) | 2016-08-17 |
Family
ID=49061121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310148893.XA Active CN103278540B (en) | 2013-04-25 | 2013-04-25 | Method for measuring equivalent salt deposit density of high-voltage insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103278540B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201586A (en) * | 2014-08-26 | 2014-12-10 | 国家电网公司 | Rapid recovery method of composite outer insulation running performance of electric transmission and transformation equipment in hazy weather |
| CN104502411A (en) * | 2014-11-16 | 2015-04-08 | 杭州华闻电力科技有限公司 | Insulator salt density on-line monitoring device |
| CN105067473A (en) * | 2015-07-30 | 2015-11-18 | 国网山东省电力公司电力科学研究院 | Method for measuring operating insulator contamination degree |
| CN105865996A (en) * | 2016-05-27 | 2016-08-17 | 中国南方电网有限责任公司电网技术研究中心 | Device and method for measuring mist distribution uniformity |
| CN106018492A (en) * | 2016-05-27 | 2016-10-12 | 中国南方电网有限责任公司电网技术研究中心 | Method, device and system for detecting insulator surface dirt and moisture |
| CN110044966A (en) * | 2019-05-07 | 2019-07-23 | 清华大学深圳研究生院 | Insulator contamination method for evaluating state and device |
| 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 |
| CN114002504A (en) * | 2021-11-09 | 2022-02-01 | 广东电网有限责任公司电力科学研究院 | Device for measuring impedance of discharge channel along surface of basin-type insulator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005005097A (en) * | 2003-06-11 | 2005-01-06 | Japan Aviation Electronics Industry Ltd | Connector |
| CN101173880A (en) * | 2007-10-23 | 2008-05-07 | 包头市林峰稀土化工有限公司 | Sampling device for salt density test of transmission line insulator |
| CN101393152A (en) * | 2008-10-24 | 2009-03-25 | 重庆电力科学试验研究院 | Insulator dirty degree sampling and measurement method and special funnel device |
| CN102053043A (en) * | 2010-11-30 | 2011-05-11 | 山东电力研究院 | Field complete pollution level detection method for running composite insulator |
| CN102288515A (en) * | 2011-07-29 | 2011-12-21 | 武汉大学 | Insulator dirt on-site sampling and contamination degree measuring method |
| KR20120029922A (en) * | 2010-09-17 | 2012-03-27 | 현대자동차주식회사 | Cover unit for insulator |
| CN103017829A (en) * | 2012-12-20 | 2013-04-03 | 四川富谊智能电力技术有限公司 | Online monitoring system and online monitoring method of high-voltage insulator filthy state |
-
2013
- 2013-04-25 CN CN201310148893.XA patent/CN103278540B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005005097A (en) * | 2003-06-11 | 2005-01-06 | Japan Aviation Electronics Industry Ltd | Connector |
| DE602004000430T2 (en) * | 2003-06-11 | 2006-08-24 | Japan Aviation Electronics Industry, Ltd. | Electrical connector for connecting a mating contact and an object to be connected |
| CN101173880A (en) * | 2007-10-23 | 2008-05-07 | 包头市林峰稀土化工有限公司 | Sampling device for salt density test of transmission line insulator |
| CN101393152A (en) * | 2008-10-24 | 2009-03-25 | 重庆电力科学试验研究院 | Insulator dirty degree sampling and measurement method and special funnel device |
| KR20120029922A (en) * | 2010-09-17 | 2012-03-27 | 현대자동차주식회사 | Cover unit for insulator |
| CN102053043A (en) * | 2010-11-30 | 2011-05-11 | 山东电力研究院 | Field complete pollution level detection method for running composite insulator |
| CN102288515A (en) * | 2011-07-29 | 2011-12-21 | 武汉大学 | Insulator dirt on-site sampling and contamination degree measuring method |
| CN103017829A (en) * | 2012-12-20 | 2013-04-03 | 四川富谊智能电力技术有限公司 | Online monitoring system and online monitoring method of high-voltage insulator filthy state |
Non-Patent Citations (4)
| Title |
|---|
| 关志成等: "局部表面电导率及应用", 《电瓷避雷器》, no. 2, 31 December 1994 (1994-12-31) * |
| 关志成等: "用局部表面电导率法研究绝缘子的积污规律", 《清华大学学报》, vol. 40, no. 1, 31 December 2000 (2000-12-31) * |
| 张仁豫等: "局部表面电导率-表征绝缘子污秽程度的一种新方法", 《高电压技术》, vol. 17, no. 1, 31 December 1991 (1991-12-31) * |
| 易辉: "《电气设备运行及维护保养丛书 电力线路》", 31 August 2012, article "绝缘子污秽及憎水性测量", pages: 95-97 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201586A (en) * | 2014-08-26 | 2014-12-10 | 国家电网公司 | Rapid recovery method of composite outer insulation running performance of electric transmission and transformation equipment in hazy weather |
| CN104201586B (en) * | 2014-08-26 | 2016-02-10 | 国家电网公司 | Power transmission and transforming equipment composite outer insulation runnability quick recovery method under haze weather |
| CN104502411A (en) * | 2014-11-16 | 2015-04-08 | 杭州华闻电力科技有限公司 | Insulator salt density on-line monitoring device |
| CN105067473A (en) * | 2015-07-30 | 2015-11-18 | 国网山东省电力公司电力科学研究院 | Method for measuring operating insulator contamination degree |
| CN105865996A (en) * | 2016-05-27 | 2016-08-17 | 中国南方电网有限责任公司电网技术研究中心 | Device and method for measuring mist distribution uniformity |
| CN106018492A (en) * | 2016-05-27 | 2016-10-12 | 中国南方电网有限责任公司电网技术研究中心 | Method, device and system for detecting insulator surface dirt and moisture |
| CN110044966A (en) * | 2019-05-07 | 2019-07-23 | 清华大学深圳研究生院 | Insulator contamination method for evaluating state and device |
| CN110044966B (en) * | 2019-05-07 | 2022-02-18 | 清华大学深圳研究生院 | Insulator contamination state evaluation method and device |
| 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 |
| CN114002504A (en) * | 2021-11-09 | 2022-02-01 | 广东电网有限责任公司电力科学研究院 | Device for measuring impedance of discharge channel along surface of basin-type insulator |
| CN114002504B (en) * | 2021-11-09 | 2023-04-25 | 广东电网有限责任公司电力科学研究院 | Measuring device for impedance of basin-type insulator surface discharge channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103278540B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103278540A (en) | Method for measuring equivalent salt deposit density of high-voltage insulator | |
| CN102200463A (en) | Liquid level linear measurement method based on impedance measurement | |
| CN103056121A (en) | Method and device for measuring salt density of contaminants on insulator surface | |
| Jiang et al. | Additional salt deposit density of polluted insulators in salt fog | |
| CN203299275U (en) | Local surface conductivity measurement probe device of insulator | |
| An et al. | Measurements of equivalent salt deposit density (ESDD) on a suspension insulator | |
| Zhao et al. | Development of contamination flashover pre-warning system and analysis of operating experience | |
| Li et al. | Quantification and comparison of insulator pollution characteristics based on normality of relative contamination values | |
| Bian et al. | The effect of surface roughness on corona-generated electromagnetic interference for long-term operating conductors | |
| Amin et al. | Aging research on SIR and TPE insulators (an overview) | |
| CN103175860B (en) | Road freezing point temperature testing system and method based on ion molar concentration monitoring | |
| CN101246188A (en) | Monitoring method for organic coating material carrier density | |
| Khatoon et al. | Study the effect of contaminants on flashover performance of porcelain disc insulator by artificial pollution testing | |
| Li et al. | On-line temperature monitoring of the GIS contacts based on infrared sensing technology | |
| JP4500993B2 (en) | Insulating gas decomposition detection apparatus and decomposition gas detection method | |
| CN201837610U (en) | Carbon nanotube/polycaprolactone blend composite membrane gas sensor | |
| Zhicheng et al. | Leakage current and discharge phenomenon of outdoor insulators | |
| Prakash et al. | Mathematical modeling on AC pollution flashover performance of glass and composite insulator | |
| Cao et al. | Temporal and spatial characteristics of soluble salt components accreted on the insulator surface | |
| CN103048522B (en) | Diagnosis method of low temperature plasma density parameter at atmospheric pressure | |
| Ahmad | Analysis of flashover voltages of disc type insulator under artificial pollution condition | |
| Salam et al. | Measurement of pollution level of 66 kV transmission line insulators | |
| Patel et al. | Prediction of flashover of silicone rubber insulator under different contaminated surface conditions | |
| Briancin et al. | Environmental pollution monitoring on high-voltage insulators | |
| Kim et al. | Prediction of Dielectric Breakdown of OHTL Insulators Using Contact Angle Measurements |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN GRADUATE SCHOOL, TSINGHUA UNIV. Effective date: 20140324 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140324 Address after: Guangzhou City, Guangdong province Yuexiu District 510080 Dongfeng East Road, No. 8, 6 water Kong 13-20 West Building Applicant after: China South Power Grid International Co.,Ltd. Applicant after: GRADUATE SCHOOL AT SHENZHEN, TSINGHUA University Address before: Guangzhou City, Guangdong province Yuexiu District 510080 Dongfeng East Road, No. 8, 6 water Kong 13-20 West Building Applicant before: China South Power Grid International Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |