Analysis of overhead ground wire sizes in distribution systems

This paper presents an approach to analyze the overhead ground wire (OHGW) sizes in distribution system focus on the i2t of line to ground fault current. For line to ground fault, the fault current and duration time when fault take place as well as the relay operting time have been concerned. The Li...

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Main Author: T. Thanasaksiri
Format: Conference Proceeding
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=70350044869&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/49009
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-490092018-08-16T02:09:22Z Analysis of overhead ground wire sizes in distribution systems T. Thanasaksiri Computer Science Engineering This paper presents an approach to analyze the overhead ground wire (OHGW) sizes in distribution system focus on the i2t of line to ground fault current. For line to ground fault, the fault current and duration time when fault take place as well as the relay operting time have been concerned. The Line Type I, OHGW not connected to the neutral of substation power transformer, give the short circuit current magnitude which is less than the current from Line Type II, OHGW connected to the neutral of substation power transformer. So the Line Type I gives the smaller OHGW sizes than Line Type II. For the short circuit current not greater than 3 kA, the 25 mm2 can be used for the distance of 3 km from substation and 35 mm2 from that location should be used. For the short circuit current not greater than 7 kA, the 35 mm2 should be used for distance of 500 m from the substation, 70 mm2 between 500 m-3 km and the 35 mm2 beyond that location should be used. For the short circuit current not greater than 12 kA, the 50 mm2 should be used for 500 m from substation, 70 mm2 should be used between 500 m-3 km and 35 mm2 for line beyond that location should be used. ©2009 IEEE. 2018-08-16T02:08:18Z 2018-08-16T02:08:18Z 2009-10-22 Conference Proceeding 2-s2.0-70350044869 10.1109/ECTICON.2009.5136973 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=70350044869&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/49009
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Computer Science
Engineering
spellingShingle Computer Science
Engineering
T. Thanasaksiri
Analysis of overhead ground wire sizes in distribution systems
description This paper presents an approach to analyze the overhead ground wire (OHGW) sizes in distribution system focus on the i2t of line to ground fault current. For line to ground fault, the fault current and duration time when fault take place as well as the relay operting time have been concerned. The Line Type I, OHGW not connected to the neutral of substation power transformer, give the short circuit current magnitude which is less than the current from Line Type II, OHGW connected to the neutral of substation power transformer. So the Line Type I gives the smaller OHGW sizes than Line Type II. For the short circuit current not greater than 3 kA, the 25 mm2 can be used for the distance of 3 km from substation and 35 mm2 from that location should be used. For the short circuit current not greater than 7 kA, the 35 mm2 should be used for distance of 500 m from the substation, 70 mm2 between 500 m-3 km and the 35 mm2 beyond that location should be used. For the short circuit current not greater than 12 kA, the 50 mm2 should be used for 500 m from substation, 70 mm2 should be used between 500 m-3 km and 35 mm2 for line beyond that location should be used. ©2009 IEEE.
format Conference Proceeding
author T. Thanasaksiri
author_facet T. Thanasaksiri
author_sort T. Thanasaksiri
title Analysis of overhead ground wire sizes in distribution systems
title_short Analysis of overhead ground wire sizes in distribution systems
title_full Analysis of overhead ground wire sizes in distribution systems
title_fullStr Analysis of overhead ground wire sizes in distribution systems
title_full_unstemmed Analysis of overhead ground wire sizes in distribution systems
title_sort analysis of overhead ground wire sizes in distribution systems
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=70350044869&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/49009
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