CN103411862A - Natural accumulated dirt checking field of insulator - Google Patents
Natural accumulated dirt checking field of insulator Download PDFInfo
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- CN103411862A CN103411862A CN2013102970686A CN201310297068A CN103411862A CN 103411862 A CN103411862 A CN 103411862A CN 2013102970686 A CN2013102970686 A CN 2013102970686A CN 201310297068 A CN201310297068 A CN 201310297068A CN 103411862 A CN103411862 A CN 103411862A
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- insulator
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- frame pole
- pole tower
- framework
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- 239000012212 insulator Substances 0.000 title claims abstract description 99
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 238000011109 contamination Methods 0.000 claims description 30
- 150000001875 compounds Chemical class 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000011835 investigation Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Testing Relating To Insulation (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a natural accumulated dirt checking field of an insulator. The natural accumulated dirt checking field comprises a transformer, a voltage divider, at least one supporting insulator and a frame formed by a portal rod tower, wherein the transformer is connected with the voltage divider, the at least one supporting insulator is arranged into a row at equal intervals, a frame bar is arranged at the upper end of the supporting insulator and used for supporting a cable connected with the voltage divider, and the frame combined by the portal pole tower is arranged above the supporting insulator. According to the natural accumulated dirt checking field, insulators of multiple forms are suspended on the frame, a V cluster included angle is regulated by regulating a suspension point position and a string length, an experimental investigation of charged or uncharged accumulated dirt characteristics of the insulators of 1000kV and below voltage classes can be carried out after insulators are charged, a research method for sampling a power grid running insulator is changed, the research scope is wide, and an important meaning is achieved for improving the power supply reliability and economy by a research result.
Description
Technical field
The invention belongs to field of power, be specifically related to the examination of insulator nature contamination.
Background technology
The aerial insulator surface of long term exposure can deposit dunghill, in dunghill, soluble salts will be dissolved in water under the wet weathers such as snow, mist, drizzle, and has electric conductivity, reduce the dielectric strength of insulator, pollution flashover even can occur and cause electric power supply to be interrupted, have a strong impact on commercial production and daily life.Under certain environmental baseline, insulator material, pattern and serial type have significant impact to dunghill at the deposition of insulator surface, therefore carry out unlike material (porcelain, glass and compound etc.), different umbrella shape (common, bell jar, two umbrella, three umbrellas), different serial types (I string, two I strings, the V string of different angles, the rule of insulator nature contamination strain insulator-string), according to the contamination rule, carry out the line insulator configuration, to reducing the generation of pollution flashover accident, improve electric power supply reliability and economy and have great importance.
Existing insulator nature contamination characteristic research method, for choosing outdoor dissimilar environment point, is arranged on insulator in high-voltage fence; After 3～5 years, after high-voltage fence is had a power failure again insulator from high-voltage fence, taking off, pollution severity of insulators is gathered and measures, carry out insulator nature contamination characteristic research.Because transmission line of electricity is different by way of area surroundings, the insulator contamination that is difficult to carry out under equivalent environment compares, and will carry out various unlike materials, pattern, and relatively, sampled point is many for the insulator contamination of serial type, and workload is large, takes time and effort.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes the examination of a kind of insulator nature contamination, be used to studying unlike material, and different types, the test of natural contamination rule examination in the insulator charged or not charged situation of different serial types.
The examination of insulator provided by the invention nature contamination, its improvements be, described examination comprises transformer, voltage divider, support insulator and the framework be combined into by the H-frame pole tower;
Described transformer is connected with described voltage divider;
Described support insulator is at least one, and is arranged in a row in equally spaced mode; Described support insulator upper end is provided with hack lever, for supporting the cable be connected with described voltage divider;
Above described support insulator, be provided with the described framework be combined into by the H-frame pole tower.
Wherein, the described framework be combined into by the H-frame pole tower is to be put together by two rectangular parallelepipeds that the H-frame pole tower forms, and its end face is the framework of " day " font;
End face is charged examination framework for three parallel H-frame pole towers in the framework of " day " font, and be used to carrying out insulator charged contamination test, all the other four H-frame pole towers are not charged examination framework, be used to carrying out the not charged contamination test of insulator.
Wherein, the framework that described H-frame pole tower is combined into forms by angle steel, on each limit on its framework, is equipped with row's hanging point, for the suspension insulator string.
Wherein, the simply connected pendulous string isolator that described not charged examination framework hangs at least 7 strings carries out not charged pollution test, and its structure is:
One end of simply connected pendulous string isolator is hung on the top of H-frame pole tower side by side, and the other end is hung on the steel wire connected between two limits.
Wherein, described charged examination framework, when carrying out charged pollution test, its structure is respectively:
The both sides of H-frame pole tower hang disc type strain insulator-string insulator, between the disc type strain insulator-string, be communicated with by wire, and under cause the cable on described support insulator; The top of H-frame pole tower hangs V-type pendulous string isolator and two I pendulous string isolators, and under V-type pendulous string isolator and pair I pendulous string isolators, guide line is connected with described cable by T-shaped wire clamp; The V-type pendulous string isolator angle number of degrees, according to the test needs, are regulated with string progress row by regulating hanging point position;
The compound strain insulator-string insulator of two side suspensions of H-frame pole tower, be communicated with by wire between compound strain insulator-string insulator, and under cause the cable on described support insulator; The top of H-frame pole tower hangs the V-type pendulous string isolator of at least two, and under the V-type pendulous string isolator, guide line is connected with described cable by T-shaped wire clamp; The V-type pendulous string isolator angle number of degrees, according to the test needs, are regulated with string progress row by regulating hanging point position; Or
The compound strain insulator-string insulator of two side suspensions of H-frame pole tower, be communicated with by wire between compound strain insulator-string insulator, and under cause the cable on described support insulator; The top of H-frame pole tower hangs the simply connected pendulous string isolator of at least five, and under the simply connected pendulous string isolator, guide line is connected with described cable by T-shaped wire clamp.
Wherein, the width of three H-frame pole towers of charged examination framework is 21.2m, and it is highly 19.5m;
The width of four H-frame pole towers of not charged examination framework is 10m, and it is highly 19.5m.
Compared with the prior art, beneficial effect of the present invention is:
Natural contamination examination of the present invention, can realize single I string, two I strings, the suspension of single V string and strain insulator-string insulator, long with string by regulating hanging point position, carry out the adjustment of V string angle, set up high-voltage power supply to be connected with the examination insulator, can carry out the insulator charged of 1000kV and following electric pressure or the not experimental study of charged contamination accumulation characteristics, changed the research method that the operation of power networks insulator is taken a sample, research range is wide, and its achievement in research has great importance to improving electric power supply reliability and economy.
The present invention can be used in research insulator material, umbrella shape, and the rule that affects on insulator nature contamination accumulation characteristics such as serial type, changed the research method that the operation of power networks insulator is taken a sample, and greatly alleviated workload, promoted efficiency.
The accompanying drawing explanation
Fig. 1 is the vertical view of natural contamination examination provided by the invention field.In figure, 1 is transformer, and 2 is voltage divider, and 3 is support insulator, the not charged examination framework of 4-7 for consisting of the H-frame pole tower, the charged examination framework of 8-10 for consisting of the H-frame pole tower.
Fig. 2 is the structural representation of H-frame pole tower 4 provided by the invention.In figure, 4 is the top of H-frame pole tower, and 11,12 is two limits of H-frame pole tower, and 13 is insulator chain; 14 is steel wire.
Fig. 3 is the structural representation of H-frame pole tower 8 provided by the invention.In figure, 8 is the top of H-frame pole tower, and 15,16 is two limits of H-frame pole tower, and 17 is the V-type insulator chain, and 18 is two I strings, and 19 is strain insulator-string.
Fig. 4 is the structural representation of H-frame pole tower 9 provided by the invention.In figure, 9 is the top of H-frame pole tower, and 20,21 is two limits of H-frame pole tower, and 22 is the V-type string, and 23 is strain insulator-string.
Fig. 5 is the structural representation of H-frame pole tower 10 provided by the invention.In figure, 10 is the top of H-frame pole tower, and 24,25 is two limits of H-frame pole tower, and 26 is the simply connected suspension string, and 27 is strain insulator-string.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The insulator nature contamination examination that the present embodiment proposes, as shown in Figure 1, the examination field comprises adjustable transformer 1, capacitive divider 2, support insulator 3 and the framework be combined into by the H-frame pole tower to its vertical view;
As shown in Figure 1, the framework be combined into by the H-frame pole tower is to be put together by two rectangular parallelepipeds that the H-frame pole tower forms, and its end face is the framework of " day " font; End face is three H-frame pole towers parallel in the framework of " day " font, be that H-frame pole tower 8, H-frame pole tower 9 and H-frame pole tower 10 are charged examination framework, for carrying out insulator charged contamination test, all the other four H-frame pole towers, be that H-frame pole tower 4, H-frame pole tower 5, H-frame pole tower 6 and H-frame pole tower 7 are not charged examination framework, be used to carrying out the not charged contamination test of insulator.Wherein, the width of H-frame pole tower 8, H-frame pole tower 9 and H-frame pole tower 10 is 21.2m, and it is highly 19.5m; The width of H-frame pole tower 4, H-frame pole tower 5, H-frame pole tower 6 and H-frame pole tower 7 is 10m, and it is highly 19.5m.The height of all H-frame pole towers is all higher than the height of support insulator 3, and higher than the height of the cable set up on support insulator 3.
When the present embodiment carries out the not charged contamination test of insulator, by insulator chain being hung on H-frame pole tower 4, H-frame pole tower 5, H-frame pole tower 6 or H-frame pole tower 7, realize, because its structure is identical, the present embodiment describes by the not charged contamination test of 4 pairs of insulators of H-frame pole tower, as shown in Figure 2, concrete structure is as follows for its structural representation:
One end of the simply connected pendulous string isolator 13 of at least 7 strings is hung on the hanging point of H-frame pole tower 4 side by side, and insulator is not charged herein, and the other end is hung on the steel wire 14 connected between two limits 11,12, the amplitude swing of having avoided wind-force to cause.
When the present embodiment carries out insulator charged contamination test, insulator chain is hung on H-frame pole tower 8, H-frame pole tower 9 or H-frame pole tower 10 and realizes, the present embodiment describes by opposite house type shaft tower 8, H-frame pole tower 9 and H-frame pole tower 10, hanging multi-form insulator chain, its structure is respectively as shown in Figure 3-Figure 5, specific as follows:
As shown in Figure 3, two limits of H-frame pole tower 8 15,16 hang disc type strain insulator-string insulators 19, between disc type strain insulator-string 19, be communicated with by wire, and under cause the cable on described support insulator 3; The top of H-frame pole tower 8 hangs V-type pendulous string isolator 17 and two I pendulous string isolator 18, and V-type pendulous string isolator 17 is connected with cable by T-shaped wire clamp with two 18 times guide lines of I pendulous string isolator; The V-type pendulous string isolator 17 angle number of degrees, according to the test needs, are regulated with string progress row by regulating hanging point position.
As shown in Figure 4, two limits of H-frame pole tower 9 20,21 hang compound strain insulator-string insulator 23, between compound strain insulator-string insulator 23, be communicated with by wire, and under cause the cable on support insulator 3; The top of H-frame pole tower 9 hangs the V-type pendulous string isolator 22 of at least two, and 22 times guide lines of V-type pendulous string isolator are connected with cable by T-shaped wire clamp; The V-type pendulous string isolator 22 angle number of degrees, according to the test needs, are regulated with string progress row by regulating hanging point position.
As shown in Figure 5, two limits of H-frame pole tower 10 24,25 hang compound strain insulator-string insulator 27, between compound strain insulator-string insulator 27, be communicated with by wire, and under cause the cable on described support insulator; The top of H-frame pole tower 10 hangs the simply connected pendulous string isolator 26 of at least five, and under the simply connected pendulous string isolator, guide line is connected with described cable by T-shaped wire clamp.
The H-frame pole tower of the present embodiment, form by angle steel, can adopt the mode of angle steel welding is fixed, and is similar to the tower structure in daily life.
While carrying out the test of insulator artificial contamination, adjustable transformer 3 is supplied with the high voltage of charged examination framework, be wired on the insulator chain of three charged examination frameworks, wire effectively supports by support insulator, capacitive divider 3 detects the voltage (1000kV and following) of adjustable transformer 1 output, the transmission voltage signal arrives pulpit, carries out reading and record of voltage.Not charged framework carries out the nature contamination, can contrast with charged framework insulator contamination.
Examination field energy of the present invention is enough carried out 4 kinds of different serial types (single I, two I, V string and strain insulator-string) insulator at the lower natural contamination characteristic research of insulator of two kinds of operating modes (charged and not charged), research range is wide, and carry out in same test site, greatly reduce workload, improved test efficiency.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (6)
1. insulator nature contamination examination, is characterized in that, described examination field comprises transformer, voltage divider, support insulator and the framework be combined into by the H-frame pole tower;
Described transformer is connected with described voltage divider;
Described support insulator is at least one, and is arranged in a row in equally spaced mode; Described support insulator upper end is provided with hack lever, for supporting the cable be connected with described voltage divider;
Above described support insulator, be provided with the described framework be combined into by the H-frame pole tower.
2. examination as claimed in claim 1, is characterized in that, the described framework be combined into by the H-frame pole tower is to be put together by two rectangular parallelepipeds that the H-frame pole tower forms, and its end face is the framework of " day " font;
End face is charged examination framework for three parallel H-frame pole towers in the framework of " day " font, and be used to carrying out insulator charged contamination test, all the other four H-frame pole towers are not charged examination framework, be used to carrying out the not charged contamination test of insulator.
3. examination as claimed in claim 2, is characterized in that, the framework that described H-frame pole tower is combined into forms by angle steel, on each limit on its framework, is equipped with row's hanging point, for the suspension insulator string.
4. examination as claimed in claim 3, is characterized in that, the simply connected pendulous string isolator that described not charged examination framework hangs at least 7 strings carries out not charged pollution test, and its structure is:
One end of simply connected pendulous string isolator is hung on the top of H-frame pole tower side by side, and the other end is hung on the steel wire connected between two limits.
5. examination as claimed in claim 3, is characterized in that, described charged examination framework, and when carrying out charged pollution test, its structure is respectively:
The both sides of H-frame pole tower hang disc type strain insulator-string insulator, between the disc type strain insulator-string, be communicated with by wire, and under cause the cable on described support insulator; The top of H-frame pole tower hangs V-type pendulous string isolator and two I pendulous string isolators, and under V-type pendulous string isolator and pair I pendulous string isolators, guide line is connected with described cable by T-shaped wire clamp; The V-type pendulous string isolator angle number of degrees, according to the test needs, are regulated with string progress row by regulating hanging point position;
The compound strain insulator-string insulator of two side suspensions of H-frame pole tower, be communicated with by wire between compound strain insulator-string insulator, and under cause the cable on described support insulator; The top of H-frame pole tower hangs the V-type pendulous string isolator of at least two, and under the V-type pendulous string isolator, guide line is connected with described cable by T-shaped wire clamp; The V-type pendulous string isolator angle number of degrees, according to the test needs, are regulated with string progress row by regulating hanging point position; Or
The compound strain insulator-string insulator of two side suspensions of H-frame pole tower, be communicated with by wire between compound strain insulator-string insulator, and under cause the cable on described support insulator; The top of H-frame pole tower hangs the simply connected pendulous string isolator of at least five, and under the simply connected pendulous string isolator, guide line is connected with described cable by T-shaped wire clamp.
6. examination as claimed in claim 2, is characterized in that, the width of three H-frame pole towers of charged examination framework is 21.2m, and it is highly 19.5m;
The width of four H-frame pole towers of not charged examination framework is 10m, and it is highly 19.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297068.6A CN103411862B (en) | 2013-07-15 | 2013-07-15 | Insulator Natural contamination examination field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297068.6A CN103411862B (en) | 2013-07-15 | 2013-07-15 | Insulator Natural contamination examination field |
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| CN103411862A true CN103411862A (en) | 2013-11-27 |
| CN103411862B CN103411862B (en) | 2016-08-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913657A (en) * | 2014-03-25 | 2014-07-09 | 南方电网科学研究院有限责任公司 | Method and checking field for determining insulator hanging positions of natural dirt accumulation station |
| CN109596946A (en) * | 2018-12-04 | 2019-04-09 | 国网天津市电力公司电力科学研究院 | A kind of double string hang test methods of 500kV plain edition composite insulator |
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2013
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913657A (en) * | 2014-03-25 | 2014-07-09 | 南方电网科学研究院有限责任公司 | Method and checking field for determining insulator hanging positions of natural dirt accumulation station |
| CN109596946A (en) * | 2018-12-04 | 2019-04-09 | 国网天津市电力公司电力科学研究院 | A kind of double string hang test methods of 500kV plain edition composite insulator |
| CN109596946B (en) * | 2018-12-04 | 2021-01-19 | 国网天津市电力公司电力科学研究院 | 500kV common type composite insulator double-string suspension mode test method |
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Effective date of registration: 20160621 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: China Electric Power Research Institute Applicant after: Guo Wang Xinjiang power company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: China Electric Power Research Institute |
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