AC flashover performance for line post and pin post insulators in distribution 22 kV

Electrical insulators in 22kV distribution system of the Provincial Electricity Authority (PEA) are mostly porcelain insulator types that consists of suspension, pin type, line post, and pin post insulators. The distribution lines will be polluted by industrial contaminants, salt fog or natural dust...

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Main Authors: Thipprasert W., Sritakeaw P., Jirapong P.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-84874433713&partnerID=40&md5=f2d4d4556825a35d8abbfbfa190d8fdc
http://cmuir.cmu.ac.th/handle/6653943832/1618
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-16182014-08-29T09:29:31Z AC flashover performance for line post and pin post insulators in distribution 22 kV Thipprasert W. Sritakeaw P. Jirapong P. Electrical insulators in 22kV distribution system of the Provincial Electricity Authority (PEA) are mostly porcelain insulator types that consists of suspension, pin type, line post, and pin post insulators. The distribution lines will be polluted by industrial contaminants, salt fog or natural dust. Experience shows that pollution flashover is one of the main natural calamities harming and affecting the voltage stability and reliability of distribution system. This paper compares the test results obtained from artificial pollution tests according to IEC 60507 with line post type and pin post type insulators of medium system under same test conditions. The salt fog test results indicate that the pollution flashover performance of line post insulator is less than to 50 percent of wet power frequency withstand voltage at equivalent salt deposit density (ESDD) = 0.5 mg/cm2 and the leakage current (LC) of line post insulator increased to 10.2 mA at ESDD = 0.5 mg/cm2 at nominal voltage. In the experiment indicate that AC pollution flashover performance of pin post insulator has better than line post insulator in the serious pollution area. © 2012 IEEE. 2014-08-29T09:29:31Z 2014-08-29T09:29:31Z 2012 Conference Paper 9.78147E+12 10.1109/VPPC.2012.6422794 95799 http://www.scopus.com/inward/record.url?eid=2-s2.0-84874433713&partnerID=40&md5=f2d4d4556825a35d8abbfbfa190d8fdc http://cmuir.cmu.ac.th/handle/6653943832/1618 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Electrical insulators in 22kV distribution system of the Provincial Electricity Authority (PEA) are mostly porcelain insulator types that consists of suspension, pin type, line post, and pin post insulators. The distribution lines will be polluted by industrial contaminants, salt fog or natural dust. Experience shows that pollution flashover is one of the main natural calamities harming and affecting the voltage stability and reliability of distribution system. This paper compares the test results obtained from artificial pollution tests according to IEC 60507 with line post type and pin post type insulators of medium system under same test conditions. The salt fog test results indicate that the pollution flashover performance of line post insulator is less than to 50 percent of wet power frequency withstand voltage at equivalent salt deposit density (ESDD) = 0.5 mg/cm2 and the leakage current (LC) of line post insulator increased to 10.2 mA at ESDD = 0.5 mg/cm2 at nominal voltage. In the experiment indicate that AC pollution flashover performance of pin post insulator has better than line post insulator in the serious pollution area. © 2012 IEEE.
format Conference or Workshop Item
author Thipprasert W.
Sritakeaw P.
Jirapong P.
spellingShingle Thipprasert W.
Sritakeaw P.
Jirapong P.
AC flashover performance for line post and pin post insulators in distribution 22 kV
author_facet Thipprasert W.
Sritakeaw P.
Jirapong P.
author_sort Thipprasert W.
title AC flashover performance for line post and pin post insulators in distribution 22 kV
title_short AC flashover performance for line post and pin post insulators in distribution 22 kV
title_full AC flashover performance for line post and pin post insulators in distribution 22 kV
title_fullStr AC flashover performance for line post and pin post insulators in distribution 22 kV
title_full_unstemmed AC flashover performance for line post and pin post insulators in distribution 22 kV
title_sort ac flashover performance for line post and pin post insulators in distribution 22 kv
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-84874433713&partnerID=40&md5=f2d4d4556825a35d8abbfbfa190d8fdc
http://cmuir.cmu.ac.th/handle/6653943832/1618
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