CN102879665A - Pollution test method for direct current lightning arrester - Google Patents
Pollution test method for direct current lightning arrester Download PDFInfo
- Publication number
- CN102879665A CN102879665A CN201210310327XA CN201210310327A CN102879665A CN 102879665 A CN102879665 A CN 102879665A CN 201210310327X A CN201210310327X A CN 201210310327XA CN 201210310327 A CN201210310327 A CN 201210310327A CN 102879665 A CN102879665 A CN 102879665A
- Authority
- CN
- China
- Prior art keywords
- direct current
- current arrester
- arrester
- pollution
- test method
- 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
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a pollution test method for a direct current lightning arrester. The method comprises the following steps of: flushing the direct current lightning arrester, and coating pollution liquid on the direct current lightning arrester; after a pollution layer is dried, applying continuous running voltage to the direct current lightning arrester, and starting a fog generator; continuously applying the continuous running voltage to the direct current lightning arrester until risk of external flashover and internal thermal collapse are eliminated; performing cyclic treatment on the direct current lightning arrester according to the steps 1, 2, and 3; and evaluating the pollution test. By the method, an actual running situation of the direct current lightning arrester can be simulated, and the method is feasible; moreover, the thermal stability of the direct current lightning arrester can be accurately judged; the anti-pollution capacity of the direct current lightning arrester can be comprehensively and accurately checked; and the test method is simple and reliable and is easy to execute.
Description
Technical field
The present invention relates to a kind of filthy experimental technique, be specifically related to a kind of direct current arrester pollution test method.
Background technology
Still do not generally acknowledge at present rational direct current arrester artificial pollution test method both at home and abroad, can not reliably estimate the dirty ability of resistant of direct current arrester, affect the safe and stable operation of straight-flow system.
The alternating-current lightning arrestor artificial pollution test method of standard GB/T 11032-2010 " alternating current gapless metal oxide arrester " appendix O regulation is only applicable to the Porcelain coat lightning arrester, and has certain dispute.This test method has following shortcoming:
1, at present the pollution test of the equipment such as state's inner insulator adopts the method for " brushing " to apply soiling solution more, and " spraying " applies the method for filthy liquid and extensively do not promoted at home; For the lightning arrester that exchanges the voltage levels such as 1000kV, though " spraying " method also very difficult finishing at short notice apply soiling solution, part soiling solution drying when causing applying voltage;
2, later stage lightning arrester sleeve surface soiling solution drying weakens the examination ability of lightning arrester external insulation;
When 3, filthy accident occurs reality in the electric system, generally be moistening gradually at charged situation lower surface pollution layer; And test method is the moistening pollution layer of elder generation at present, then applies voltage, is not inconsistent with actual conditions.
GB/T 22707-2008 " straight-flow system with the artificial pollution test of high-tension insulator " has stipulated artificial pollution test's method of straight-flow system insulator, but because insulator does not have inner member, this method is only examined the dirty ability of exterior insulator resistant.Artificial pollution test's method of insulator can not be examined lightning arrester internal heat stability.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of direct current arrester pollution test method, can examine by even brushing filth, the moistening simulation practical operation situation of barber, the dirty ability of Real-Time Monitoring internal temperature direct current arrester resistant.
In order to realize the foregoing invention purpose, the present invention takes following technical scheme:
A kind of direct current arrester pollution test method said method comprising the steps of:
Step 1: the flushing direct current arrester, and on direct current arrester the brushing soiling solution;
Step 2: the continuous running voltage of the dry after-applied direct current arrester of pollution layer, and start fog generator;
Step 3: continue to apply the continuous running voltage of direct current arrester, until the danger of external flashover and internal heat collapse is got rid of;
Step 4: carry out circular treatment according to step 1,2 and 3 pairs of direct current arresters;
Step 5: estimate pollution test.
In the described step 1, described soiling solution is prepared from by porcelain earth and the sodium chloride ratio according to 5:1 or 6:1.
In the described step 2, be not less than 8h the drying time of described pollution layer, and at the uniform velocity apply the continuous running voltage of direct current arrester.
In the described step 3, the continuous running voltage time of continuing to apply direct current arrester is no less than 30min.
The dangerous criterion of getting rid of of described external flashover is: monitoring is by the total current of direct current arrester during on-test, and the total current by direct current arrester reduces or no longer rising gradually behind the 30min at least, and the current impulse greater than peak value 500mA no longer occurs.
The dangerous criterion of getting rid of of described internal heat collapse is: the internal temperature of monitoring direct current arrester during on-test, the internal temperature of direct current arrester reduces or no longer rising gradually behind the 30min at least, and maximum temperature is no more than 60 ℃.
Each unit joint of described direct current arrester is chosen at least three positions the direct current arrester internal temperature is monitored.
Internal temperature by fiber-optical grating temperature sensor monitoring direct current arrester, used optical fiber is the trial voltage of 1.2 times of tolerances, high temperature and the creepage optical fiber that should be not less than 50mm/kV than distance that tolerance is not less than 300 ℃, described outer fiber is enclosed with fire proofing, and described fire proofing comprises natural rubber and tygon.
In the described step 4, carry out circular treatment 3 or 4 times according to step 1,2 and 3 pairs of direct current arresters.
In the described step 5, if direct current arrester is thermally-stabilised, and external flashover in duration of test, do not occur, and confirm on inspection that flashover does not occur resistor disc or when damaging, then think stand the test.
Compared with prior art, beneficial effect of the present invention is: this test method can analog DC lightning arrester practical operation situation; Test method is practical; The thermal stability of direct current arrester can be accurately judged, and the dirty ability of resistant of direct current arrester can be examined all-sidedly and accurately; This test method is simple and reliable, easily carries out.
Description of drawings
Fig. 1 is direct current arrester pollution test method flow diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Embodiment 1
Such as Fig. 1, a kind of direct current arrester pollution test method said method comprising the steps of:
Step 1: the flushing direct current arrester, and on direct current arrester the brushing soiling solution;
Step 2: the continuous running voltage of the dry after-applied direct current arrester of pollution layer, and start fog generator;
Step 3: continue to apply the continuous running voltage of direct current arrester, until the danger of external flashover and internal heat collapse is got rid of;
Step 4: carry out circular treatment according to step 1,2 and 3 pairs of direct current arresters;
Step 5: estimate pollution test.
In the described step 1, described soiling solution is prepared from by porcelain earth and the sodium chloride ratio according to 5:1.
In the described step 2, be 10h the drying time of described pollution layer, and at the uniform velocity apply the continuous running voltage of direct current arrester.
In the described step 3, continue to apply the continuous running voltage time 40min of direct current arrester.
The dangerous criterion of getting rid of of described external flashover is: monitoring is by the total current of direct current arrester during on-test, and the total current by direct current arrester behind the 40min reduces or no longer rising gradually, and the current impulse greater than peak value 500mA no longer occurs.
The dangerous criterion of getting rid of of described internal heat collapse is: the internal temperature of monitoring direct current arrester during on-test, the internal temperature of direct current arrester reduces or no longer rising gradually behind the 40min, and maximum temperature is no more than 60 ℃.
Each unit selected parts of described direct current arrester are got three positions the direct current arrester internal temperature are monitored.
By the internal temperature of fiber-optical grating temperature sensor monitoring direct current arrester, used optical fiber (for ± 500kV direct current arrester, should be able to tolerate the 600kV DC voltage for the trial voltage of 1.2 times of tolerances; For ± the 800kV direct current arrester, should be able to tolerate the 960kV DC voltage), tolerance is not less than 300 ℃ high temperature and creepage than apart from being not less than the optical fiber of 50mm/kV, described outer fiber is enclosed with fire proofing, and described fire proofing comprises natural rubber and tygon.
In the described step 4, carry out circular treatment 4 times according to step 1,2 and 3 pairs of direct current arresters.
In the described step 5, if direct current arrester is thermally-stabilised, and external flashover in duration of test, do not occur, and confirm on inspection that flashover does not occur resistor disc or when damaging, then think stand the test.
Should be noted that at last: 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 make amendment 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 the claim scope of the present invention.
Claims (10)
1. direct current arrester pollution test method is characterized in that: said method comprising the steps of:
Step 1: the flushing direct current arrester, and on direct current arrester the brushing soiling solution;
Step 2: the continuous running voltage of the dry after-applied direct current arrester of pollution layer, and start fog generator;
Step 3: continue to apply the continuous running voltage of direct current arrester, until the danger of external flashover and internal heat collapse is got rid of;
Step 4: carry out circular treatment according to step 1,2 and 3 pairs of direct current arresters;
Step 5: estimate pollution test.
2. direct current arrester pollution test method according to claim 1 is characterized in that: in the described step 1, described soiling solution is prepared from by porcelain earth and the sodium chloride ratio according to 5:1 or 6:1.
3. direct current arrester pollution test method according to claim 1, it is characterized in that: in the described step 2, be not less than 8h the drying time of described pollution layer, and at the uniform velocity apply the continuous running voltage of direct current arrester.
4. direct current arrester pollution test method according to claim 1 is characterized in that: in the described step 3, the continuous running voltage time of continuing to apply direct current arrester is no less than 30min.
5. direct current arrester pollution test method according to claim 1, it is characterized in that: the dangerous criterion of getting rid of of described external flashover is: monitoring is by the total current of direct current arrester during on-test, at least the total current by direct current arrester reduces or no longer rising gradually behind the 30min, and the current impulse greater than peak value 500mA no longer occurs.
6. direct current arrester pollution test method according to claim 1, it is characterized in that: the dangerous criterion of getting rid of of described internal heat collapse is: the internal temperature of monitoring direct current arrester during on-test, at least the internal temperature of direct current arrester reduces or no longer rising gradually behind the 30min, and maximum temperature is no more than 60 ℃.
7. direct current arrester pollution test method according to claim 6 is characterized in that: each unit joint of described direct current arrester is chosen at least three positions the direct current arrester internal temperature is monitored.
8. direct current arrester pollution test method according to claim 7, it is characterized in that: by the internal temperature of fiber-optical grating temperature sensor monitoring direct current arrester, used optical fiber is the trial voltage of 1.2 times of tolerances, high temperature and the creepage optical fiber that should be not less than 50mm/kV than distance that tolerance is not less than 300 ℃, described outer fiber is enclosed with fire proofing, and described fire proofing comprises natural rubber and tygon.
9. direct current arrester pollution test method according to claim 1 is characterized in that: in the described step 4, carry out circular treatment 3 or 4 times according to step 1,2 and 3 pairs of direct current arresters.
10. direct current arrester pollution test method according to claim 1, it is characterized in that: in the described step 5, if direct current arrester is thermally-stabilised, and external flashover in duration of test, do not occur, and confirm on inspection that flashover does not occur resistor disc or when damaging, then think stand the test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310327.XA CN102879665B (en) | 2012-08-28 | 2012-08-28 | A kind of direct current arrester pollution test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310327.XA CN102879665B (en) | 2012-08-28 | 2012-08-28 | A kind of direct current arrester pollution test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102879665A true CN102879665A (en) | 2013-01-16 |
| CN102879665B CN102879665B (en) | 2016-01-20 |
Family
ID=47481061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210310327.XA Active CN102879665B (en) | 2012-08-28 | 2012-08-28 | A kind of direct current arrester pollution test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102879665B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190084A (en) * | 2020-02-13 | 2020-05-22 | 云南电网有限责任公司曲靖供电局 | Pollution test method for lightning arrester |
| CN112858812A (en) * | 2021-01-11 | 2021-05-28 | 西南交通大学 | Lightning arrester service performance evaluation method under extreme complex environment |
| CN113933664A (en) * | 2021-10-11 | 2022-01-14 | 广西电网有限责任公司电力科学研究院 | Artificial pollution test method for composite cross arm structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329203A (en) * | 2008-07-23 | 2008-12-24 | 中国电力科学研究院 | Apparatus for measuring temperature of alternating current-direct current lightning arrestor |
-
2012
- 2012-08-28 CN CN201210310327.XA patent/CN102879665B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329203A (en) * | 2008-07-23 | 2008-12-24 | 中国电力科学研究院 | Apparatus for measuring temperature of alternating current-direct current lightning arrestor |
Non-Patent Citations (5)
| Title |
|---|
| K•FESER等: "氧化锌避雷器在污秽情况下的特性", 《华中电力》 * |
| 内腾等: "金属氧化物无间隙避雷器在污秽和冲洗时的特性及现场试验结果", 《电磁避雷器》 * |
| 张搏宇等: "污秽条件下避雷器的内部温升研究", 《高电压技术》 * |
| 张雨时: "避雷器污秽和污秽试验", 《电磁避雷器》 * |
| 陈立栋等: "特高压直流避雷器试验研究", 《电力技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190084A (en) * | 2020-02-13 | 2020-05-22 | 云南电网有限责任公司曲靖供电局 | Pollution test method for lightning arrester |
| CN112858812A (en) * | 2021-01-11 | 2021-05-28 | 西南交通大学 | Lightning arrester service performance evaluation method under extreme complex environment |
| CN113933664A (en) * | 2021-10-11 | 2022-01-14 | 广西电网有限责任公司电力科学研究院 | Artificial pollution test method for composite cross arm structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102879665B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102879665B (en) | A kind of direct current arrester pollution test method | |
| CN104371133A (en) | Method for eliminating electrostatic charges on surface of basin-type insulator in GIS | |
| Jiang et al. | Study of DC flashover performance of ice-covered insulators at high altitude | |
| Ming et al. | Influence of sheds damage on the AC pollution flashover performance of different voltage class composite insulators | |
| Gao et al. | Breakdown characteristics of a long air gap containing a floating conductor under positive switching impulse | |
| CN203423019U (en) | Wiring insulation sheath for electric power equipment | |
| CN105445511A (en) | Singlephase earth fault signal generating device and method for simulation isolated neutral system | |
| CN102879666A (en) | Pollution test method for alternating current lightning arrester | |
| Xiao et al. | Experimental study on the flashover characteristics of polluted insulators under short-tail lightning impulse waveform | |
| McDermid et al. | Experience with dielectric surfaces of FRP tools used in live line work | |
| Wang et al. | Study on the flashover characteristics of bird droppings along 110kV composite insulator | |
| Pandian et al. | Leakage current and flash over performance analysis of 11 kv pin insulator under Bird excretion pollution | |
| CN204204524U (en) | A kind of overhead transmission line combined insulator suspension string | |
| CN106451226A (en) | Processing method of cracking cable | |
| McDermid | Experience with electrical testing of aerial devices for use at 69–500 kV | |
| CN104252925A (en) | Combined insulator suspension string of overhead power transmission line | |
| CN205210136U (en) | Simulation isolated neutral system phase to earth fault signal generating device | |
| CN108631222A (en) | Zinc-Oxide Arrester lead cracking restorative procedure | |
| Yong et al. | Research on safety protection of±800kV UHV DC line live working | |
| CN103839657B (en) | A kind of neutral point for transformer and the two grounding system of shell | |
| Porkar et al. | DC flashover performance of an inclined insulator string under heavy icing conditions | |
| Guo et al. | Electric Field Simulation of Equipotential Live-line Work in 500kV Cup-type-tower | |
| Yin et al. | Feasibility of cable through a hollow cross-arm as down-lead for a 400 kV Y-shaped composite pylon | |
| You et al. | Discussion on problems of single conductor small corona cage's design | |
| Xu et al. | Analysis of Grounding Index of Substation in High Resistivity Area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |