Fault location in transmission lines using one-terminal postfault voltage data
A new algorithm for fault location in transmission lines, with fault distance calculation based on steady-state measured phasors in local terminal is presented. For the postfault, only voltage phasors are required, avoiding possible errors due to current transformer saturation; the current phasors a...
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| Veröffentlicht in: | IEEE transactions on power delivery 2004-04, Vol.19 (2), p.570-575 |
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| container_title | IEEE transactions on power delivery |
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| creator | de Morais Pereira, C.E. Zanetta, L.C. |
| description | A new algorithm for fault location in transmission lines, with fault distance calculation based on steady-state measured phasors in local terminal is presented. For the postfault, only voltage phasors are required, avoiding possible errors due to current transformer saturation; the current phasors are required only in prefault time, when saturation does not occur. The algorithm does not use simplifying hypothesis but requires system equivalent data at both line terminals and the fault classification, considering fault resistance purely resistive. In order to verify the algorithm performance, a parametric analysis of variables that influences short-circuit conditions is developed, including an analysis of remote equivalent setting. The results show that the algorithm is very accurate, even in cases when the remote equivalent is not well fitted. |
| doi_str_mv | 10.1109/TPWRD.2004.824391 |
| format | Article |
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For the postfault, only voltage phasors are required, avoiding possible errors due to current transformer saturation; the current phasors are required only in prefault time, when saturation does not occur. The algorithm does not use simplifying hypothesis but requires system equivalent data at both line terminals and the fault classification, considering fault resistance purely resistive. In order to verify the algorithm performance, a parametric analysis of variables that influences short-circuit conditions is developed, including an analysis of remote equivalent setting. 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For the postfault, only voltage phasors are required, avoiding possible errors due to current transformer saturation; the current phasors are required only in prefault time, when saturation does not occur. The algorithm does not use simplifying hypothesis but requires system equivalent data at both line terminals and the fault classification, considering fault resistance purely resistive. In order to verify the algorithm performance, a parametric analysis of variables that influences short-circuit conditions is developed, including an analysis of remote equivalent setting. The results show that the algorithm is very accurate, even in cases when the remote equivalent is not well fitted.</description><subject>Admittance</subject><subject>Algorithm design and analysis</subject><subject>Fault location</subject><subject>Impedance</subject><subject>Performance analysis</subject><subject>Transmission line matrix methods</subject><subject>Transmission line measurements</subject><subject>Transmission line theory</subject><subject>Transmission lines</subject><subject>Voltage</subject><issn>0885-8977</issn><issn>1937-4208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1LAzEQhoMoWKs_QLwsHrxtzcd2kz1KtSqIilQ8hux2UlLSpCZZwX9v2hUET5kMzzvMPAidEzwhBDfXi9ePt9sJxbiaCFqxhhygEWkYLyuKxSEaYSGmpWg4P0YnMa5xBnGDR-h5rnqbCus7lYx3hXFFCsrFjYlx97fGQSz6aNyq8A7KBGFjnLLF1sek99kvb5NaQbFUSZ2iI61shLPfd4ze53eL2UP59HL_OLt5KjvK6lRyrWGqKIeWdFioblqTWgOf8rrSSlORq4Yw0SxbaLVgGpNOkZoAzV2Nly0bo6th7jb4zx5iknnhDqxVDnwfJRW05kzQDF7-A9e-D_mAKIXIABUVzhAZoC74GANouQ1mo8K3JFju9Mq9XrnTKwe9OXMxZAwA_PGUi4oQ9gPONnds</recordid><startdate>200404</startdate><enddate>200404</enddate><creator>de Morais Pereira, C.E.</creator><creator>Zanetta, L.C.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on power delivery, 2004-04, Vol.19 (2), p.570-575 |
| issn | 0885-8977 1937-4208 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Admittance Algorithm design and analysis Fault location Impedance Performance analysis Transmission line matrix methods Transmission line measurements Transmission line theory Transmission lines Voltage |
| title | Fault location in transmission lines using one-terminal postfault voltage data |
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