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| Analysis of generator terminal potential transformer inter-turn short circuit and design of on-line monitoring device |
| Zhang Jianhua |
| Datang Central-China Electric Power Test Research Institute, Zhengzhou 450000 |
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Abstract Aiming at the problem that the generator terminal potential transformer (PT) inter-turn short-circuit fault occurs frequently and it is easy to cause shutdown of the units, firstly, the PT inter-turn short circuit is modeled, and the electrical characteristics of the PT inter-turn short circuit are analyzed, and then according to the electrical characteristics, a generator PT inter-turn short circuit online monitoring device is provided.The device can realize early diagnosis and rapid warning of faults when the terminal PT is short-circuited, so that the operating personnel can take timely measures to prevent unplanned outage.
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Received: 12 August 2019
Published: 27 February 2020
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| Cite this article: |
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Zhang Jianhua. Analysis of generator terminal potential transformer inter-turn short circuit and design of on-line monitoring device[J]. Electrical Engineering, 2020, 21(2): 110-113.
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http://dqjs.cesmedia.cn/EN/Y2020/V21/I2/110
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2020, Vol. 21 
