Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation
In this contribution, the investigation on the failures of 115-kV capacitor banks during switching in Chiang Mai 3 substation is presented. The switching transient is caused by energizing an isolated bank and back-to-back switching. Close time of circuit breaker for energizing capacitor bank, system...
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2017
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th-cmuir.6653943832-429802017-09-28T06:45:03Z Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation Kanitpanyacharoen S. Premrudeepreechacharn S. In this contribution, the investigation on the failures of 115-kV capacitor banks during switching in Chiang Mai 3 substation is presented. The switching transient is caused by energizing an isolated bank and back-to-back switching. Close time of circuit breaker for energizing capacitor bank, system loads, and power factors are varied in the simulations by PSCAD/EMTDC program to determine the causes of maximum inrush current and overvoltage. Simulation results of energizing isolated bank suggest that the maximum inrush currents occurs with a higher system load while the maximum overvoltage occurs in a lower system load. The back-to-back switching sequence of capacitor banks has given different results. Method No.1 is the most optimal sequence for energizing capacitor bank and is most likely to minimize the effects of back-to-back switching. © 2011 IEEE. 2017-09-28T06:45:03Z 2017-09-28T06:45:03Z 2011-10-13 Conference Proceeding 2-s2.0-80053653451 10.1109/NAPS.2011.6025102 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80053653451&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/42980 |
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In this contribution, the investigation on the failures of 115-kV capacitor banks during switching in Chiang Mai 3 substation is presented. The switching transient is caused by energizing an isolated bank and back-to-back switching. Close time of circuit breaker for energizing capacitor bank, system loads, and power factors are varied in the simulations by PSCAD/EMTDC program to determine the causes of maximum inrush current and overvoltage. Simulation results of energizing isolated bank suggest that the maximum inrush currents occurs with a higher system load while the maximum overvoltage occurs in a lower system load. The back-to-back switching sequence of capacitor banks has given different results. Method No.1 is the most optimal sequence for energizing capacitor bank and is most likely to minimize the effects of back-to-back switching. © 2011 IEEE. |
format |
Conference Proceeding |
author |
Kanitpanyacharoen S. Premrudeepreechacharn S. |
spellingShingle |
Kanitpanyacharoen S. Premrudeepreechacharn S. Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation |
author_facet |
Kanitpanyacharoen S. Premrudeepreechacharn S. |
author_sort |
Kanitpanyacharoen S. |
title |
Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation |
title_short |
Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation |
title_full |
Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation |
title_fullStr |
Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation |
title_full_unstemmed |
Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation |
title_sort |
investigation of 115 kv capacitor bank failure during switching in chiang mai 3 substation |
publishDate |
2017 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80053653451&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/42980 |
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