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| Example Analysis of Reformation of Duplex Bus Protection in 220kV Transformer Substation |
| Qian Bifu, Chen Gang, Lin Gaoxiang, Ye Zhengce, Wang Ce |
| Wenzhou Power Supply Company, Wenzhou, Zhejiang 325000 |
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Abstract At present in the city company, the coverage of double bus protection was much low, and the reformations of duplex bus differential protection were applied orderly. The paper introduced the protection types and content of construction, and expounded the details of trip circuit, breaker fail protection circuit and direct transfer trip circuit aiming at the 220kV transformer substation. Owing to the diversity and complexity, the suitable circuits were designed for full-function and clear. The paper had much reference to the reformation of duplex bus differential protection.
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Published: 22 December 2014
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| Cite this article: |
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Qian Bifu,Chen Gang,Lin Gaoxiang等. Example Analysis of Reformation of Duplex Bus Protection in 220kV Transformer Substation[J]. Electrical Engineering, 2014, 15(12): 81-84.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2014/V15/I12/81
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2014, Vol. 15 
