Study on life management of power transformer

  • Authors:

  • Zhang Weizheng;Li Yanming;Yang Lanjun;Wang Zhenggang;Zhang Jinguang;Hu Bo;Kuang Shi

  • Affiliations:

  • Xi 'an Jiaotong University, Xi'an, Shaanxi, P.R China;Xi 'an Jiaotong University, Xi'an, Shaanxi, P.R China;Xi 'an Jiaotong University, Xi'an, Shaanxi, P.R China;Henan Electric Power Corporation, Zhengzhou, Henan Province, P.R China;Henan Electric Power Corporation, Zhengzhou, Henan Province, P.R China;Henan Electric Power Corporation, Zhengzhou, Henan Province, P.R China;Henan Electric Power Corporation, Zhengzhou, Henan Province, P.R China

  • Venue:
  • IMCAS'06 Proceedings of the 5th WSEAS international conference on Instrumentation, measurement, circuits and systems
  • Year:
  • 2006

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Abstract

This paper presents the general knowledge, theory and methodology of life management that used in electric power transformer. The paper also discusses the basic failure theory and method to establish failure model of power transformer. Insulation ageing is a problem due to dielectric, chemical, thermal and electro-mechanic stresses, which is highly depending on operational conditions. Life management of power transformer should include research of fault diagnostic, monitor methods and insulation reclamation to extend life, and establish life model of power transformer. Life management of power transformer should not only consider the fault model, quantitative assessment of the relevant remnant withstands strengths of transformers and operational stresses, but also establish the maintenance standard for power transformer.