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| Multi-point grounding fault analysis and structural improvement of 500 kV large capacity transformer core |
| ZHAO Lijie, ZHAO Feng, REN Yuan |
| Baoding Tianwei Baobian Electric Co., Ltd, Baoding, Hebei 071056 |
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Abstract The multi-point grounding fault of transformer core endangers the safe and stable operation of transformer. In this paper, the causes of the multi-point grounding fault of a 500 kV large capacity transformer core are analyzed in detail. By establishing the finite element model of the transformer, the three-dimensional electromagnetic field calculation software is used to simulate and analyze the transformer fault. Finally, the core structure improvement measures are proposed to avoid such faults and improve the safety performance of the transformer.
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Received: 20 February 2025
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| Cite this article: |
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ZHAO Lijie,ZHAO Feng,REN Yuan. Multi-point grounding fault analysis and structural improvement of 500 kV large capacity transformer core[J]. Electrical Engineering, 2025, 26(7): 81-84.
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| URL: |
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https://dqjs.cesmedia.cn/EN/Y2025/V26/I7/81
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2025, Vol. 26 
