Method for evaluating corrosion degree of oil-immersed power transformer

The invention relates to a method for evaluating the corrosion degree of an oil-immersed power transformer. The method comprises the following steps: measuring the copper element content and the aluminum element content in insulation paper; calculating the corrosion degree c1 of the insulation paper; measuring the copper element content, the aluminum element content, the water content and the acid value in the insulating oil; calculating the corrosion degree c2 of the insulating oil; and comprehensively evaluating the corrosion degree of the power transformer. According to the evaluation method, the corrosion condition of the power transformer is evaluated based on the related index parameters of the insulating paper and the insulating oil, and the evaluation method is more comprehensive and has higher accuracy. 本发明涉及一种油浸式电力变压器腐蚀程度的评估方法，包括测定绝缘纸中铜元素含量和铝元素含量；计算绝缘纸的腐蚀程度c1；测定绝缘油中铜元素含量、铝元素含量、水分含量和酸值；计算绝缘油的腐蚀程度c2；电力变压器腐蚀程度的综合评估步骤。该评估方法基于绝缘纸和绝缘油相关指标参数去对电力变压器腐蚀情况进行评估，更为全面以及具有较高的精准度。