油浸式变压器绝缘诊断方法的研究进展

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Abstract The oil immersed transformer is the most important and expensive electrical equipment in the power system. The aging of the oil-paper insulation system of the transformer is the main reason for its failure. Accurately diagnosing the insulation state of transformer is very important for the safe and reliable operation of power system. This paper expounds the existing research status of insulation diagnosis methods for oil-immersed transformers, and summarizes them as follows: traditional characteristic diagnosis method and dielectric response characteristic diagnosis method. Comparative analysis of different diagnosis techniques in the two methods, explains the advantages and disadvantages of different methods, and puts forward the corresponding research improvement direction. Finally, the future research direction and development trend of the insulation state diagnosis method for oil immersed transformer are summarized.

Key words： immersed transformer oil-paper insulation system insulation diagnosis traditional characteristic quantity dielectric response method

Received: 21 April 2019 Published: 19 December 2019

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	Articles by authors
	Lin Chaoming
	Ye Rong

Cite this article:

Lin Chaoming,Ye Rong. Research progress of insulation diagnosis method for oil-immersed transformer[J]. Electrical Engineering, 2019, 20(12): 1-6.

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http://dqjs.cesmedia.cn/EN/Y2019/V20/I12/1

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