Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breaker
Abstract The extended grading capacitor (EGC) is a cost‐effective technique to suppress secondary arc. However, whether the use of EGC would weaken the interrupting capability of circuit breakers (CB) or not is still undetermined. In this work, an equivalent circuit model for ultra‐high voltage tran...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-07-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.12162 |
| _version_ | 1828176367792947200 |
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| author | Qiuqin Sun Zhibin Xiao Rong Jiang Lipeng Zhong She Chen |
| author_facet | Qiuqin Sun Zhibin Xiao Rong Jiang Lipeng Zhong She Chen |
| author_sort | Qiuqin Sun |
| collection | DOAJ |
| description | Abstract The extended grading capacitor (EGC) is a cost‐effective technique to suppress secondary arc. However, whether the use of EGC would weaken the interrupting capability of circuit breakers (CB) or not is still undetermined. In this work, an equivalent circuit model for ultra‐high voltage transmission line was established. The expressions of transient recovery voltage (TRV) across the contact gap of CB are derived, and hence the rate of rise of recovery voltage (RRRV). Then, a series of simulations have been performed, including the long‐line fault, the short‐line fault (SLF) and the terminal fault. It is found that the RRRV had approximately linear downward trend with the increase of the capacitance of EGC under long‐line fault but had approximately index downward trend under SLF. The SLF poses the strictest requirements to the CB. In addition to suppressing secondary arc current, the use of EGC would mitigate the interrupting severity and enhancing the interrupting performance of CB. |
| first_indexed | 2024-04-12T04:43:17Z |
| format | Article |
| id | doaj.art-65eb70cfb1ef46b889cf75ae879a8a6b |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-04-12T04:43:17Z |
| publishDate | 2021-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-65eb70cfb1ef46b889cf75ae879a8a6b2022-12-22T03:47:34ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952021-07-0115142127213610.1049/gtd2.12162Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breakerQiuqin Sun0Zhibin Xiao1Rong Jiang2Lipeng Zhong3She Chen4College of Electrical & Information Engineering Hunan University Changsha ChinaState Grid Hunan Electric Power Company Limited Maintenance Company Changsha ChinaCollege of Electrical & Information Engineering Hunan University Changsha ChinaCollege of Electrical & Information Engineering Hunan University Changsha ChinaCollege of Electrical & Information Engineering Hunan University Changsha ChinaAbstract The extended grading capacitor (EGC) is a cost‐effective technique to suppress secondary arc. However, whether the use of EGC would weaken the interrupting capability of circuit breakers (CB) or not is still undetermined. In this work, an equivalent circuit model for ultra‐high voltage transmission line was established. The expressions of transient recovery voltage (TRV) across the contact gap of CB are derived, and hence the rate of rise of recovery voltage (RRRV). Then, a series of simulations have been performed, including the long‐line fault, the short‐line fault (SLF) and the terminal fault. It is found that the RRRV had approximately linear downward trend with the increase of the capacitance of EGC under long‐line fault but had approximately index downward trend under SLF. The SLF poses the strictest requirements to the CB. In addition to suppressing secondary arc current, the use of EGC would mitigate the interrupting severity and enhancing the interrupting performance of CB.https://doi.org/10.1049/gtd2.12162Power transmission lines and cablesSwitchgearOther power apparatus and electric machines |
| spellingShingle | Qiuqin Sun Zhibin Xiao Rong Jiang Lipeng Zhong She Chen Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breaker IET Generation, Transmission & Distribution Power transmission lines and cables Switchgear Other power apparatus and electric machines |
| title | Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breaker |
| title_full | Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breaker |
| title_fullStr | Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breaker |
| title_full_unstemmed | Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breaker |
| title_short | Influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi‐break circuit breaker |
| title_sort | influence of extended grading capacitor for suppressing secondary arc on the transient recovery voltage of multi break circuit breaker |
| topic | Power transmission lines and cables Switchgear Other power apparatus and electric machines |
| url | https://doi.org/10.1049/gtd2.12162 |
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