油浸式电力变压器老化状态评估方法

Aging Assessment Technique of Oil-immersed Power Transformer

介绍油浸式电力变压器油纸绝缘系统的介电响应模型,分析回复电压法、极化/去极化电流法、频域谱测量法3种非破坏性变压器老化状态的评估方法,为油浸式电力变压器老化状态评估工作提供参考。

This paper introduces dielectric response model of oil-paper insulation system of oil-immersed power transformer, analyzes the three nondestructive aging assessment techniques;the return voltage method（RVM）, the polarization/ depolarization current method（PDC） and the frequency domain spectroscopy（FDS）,to take the reference for aging assessment technique of oil-immersed power transformer.