Avoiding under-reaching in twin circuit lines without residual current input from the parallel line
Mutual coupling presents difficult problems during single phase to earth fault, in transmission line protection. In lines, on multiple circuit towers or on the same right of way, the zero-sequence circuits of the lines get mutually coupled, causing an error in the apparent impedance seen by the rela...
| Main Authors: | , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2007
|
| Subjects: | |
| Online Access: | http://scholars.utp.edu.my/id/eprint/459/ http://scholars.utp.edu.my/id/eprint/459/1/paper.pdf |
| _version_ | 1848658992444735488 |
|---|---|
| author | P., Nallagownden R.N., Mukerjee M.F., Bin Abdullah K.K., Tan |
| author_facet | P., Nallagownden R.N., Mukerjee M.F., Bin Abdullah K.K., Tan |
| author_sort | P., Nallagownden |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | Mutual coupling presents difficult problems during single phase to earth fault, in transmission line protection. In lines, on multiple circuit towers or on the same right of way, the zero-sequence circuits of the lines get mutually coupled, causing an error in the apparent impedance seen by the relay. This causes the distance protection relay at one end of the faulty line to overreach and the relay at the other end to under-reach. Also, incorrect sensing of the ground fault due to zero-sequence voltage inversion caused by mutual coupling in the zero-sequence network may lead to false trip of the neighbouring healthy line. The paper develops characteristic expressions for the effective sequence impedances experienced by a twin-circuit, both with and without mutual coupling and presents a non-iterative microprocessor based real time algorithm for computing fault distance and zero sequence compensation in basic distance relaying scheme, Residual current measurement from the parallel circuit is not required in the algorithm. © 2007 RPS.
|
| first_indexed | 2025-11-13T07:23:20Z |
| format | Conference or Workshop Item |
| id | oai:scholars.utp.edu.my:459 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:23:20Z |
| publishDate | 2007 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:4592017-01-19T08:27:11Z http://scholars.utp.edu.my/id/eprint/459/ Avoiding under-reaching in twin circuit lines without residual current input from the parallel line P., Nallagownden R.N., Mukerjee M.F., Bin Abdullah K.K., Tan TK Electrical engineering. Electronics Nuclear engineering Mutual coupling presents difficult problems during single phase to earth fault, in transmission line protection. In lines, on multiple circuit towers or on the same right of way, the zero-sequence circuits of the lines get mutually coupled, causing an error in the apparent impedance seen by the relay. This causes the distance protection relay at one end of the faulty line to overreach and the relay at the other end to under-reach. Also, incorrect sensing of the ground fault due to zero-sequence voltage inversion caused by mutual coupling in the zero-sequence network may lead to false trip of the neighbouring healthy line. The paper develops characteristic expressions for the effective sequence impedances experienced by a twin-circuit, both with and without mutual coupling and presents a non-iterative microprocessor based real time algorithm for computing fault distance and zero sequence compensation in basic distance relaying scheme, Residual current measurement from the parallel circuit is not required in the algorithm. © 2007 RPS. 2007 Conference or Workshop Item NonPeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/459/1/paper.pdf P., Nallagownden and R.N., Mukerjee and M.F., Bin Abdullah and K.K., Tan (2007) Avoiding under-reaching in twin circuit lines without residual current input from the parallel line. In: 8th International Power Engineering Conference, IPEC 2007, 3 December 2007 through 6 December 2007, Singapore. http://www.scopus.com/inward/record.url?eid=2-s2.0-51349145178&partnerID=40&md5=57d228a11547e05d153b3406b08010b7 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering P., Nallagownden R.N., Mukerjee M.F., Bin Abdullah K.K., Tan Avoiding under-reaching in twin circuit lines without residual current input from the parallel line |
| title | Avoiding under-reaching in twin circuit lines without residual current input from the parallel line
|
| title_full | Avoiding under-reaching in twin circuit lines without residual current input from the parallel line
|
| title_fullStr | Avoiding under-reaching in twin circuit lines without residual current input from the parallel line
|
| title_full_unstemmed | Avoiding under-reaching in twin circuit lines without residual current input from the parallel line
|
| title_short | Avoiding under-reaching in twin circuit lines without residual current input from the parallel line
|
| title_sort | avoiding under-reaching in twin circuit lines without residual current input from the parallel line |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://scholars.utp.edu.my/id/eprint/459/ http://scholars.utp.edu.my/id/eprint/459/ http://scholars.utp.edu.my/id/eprint/459/1/paper.pdf |