一起220 kV变压器绕组变形缺陷的诊断及分析

Diagnosis and Analysis of a 220 kV Transformer Winding Deformation Defect

摘要: 介绍一起通过常规停电试验发现220 kV变压器中压绕组存在严重变形缺陷，分析了该变压器中压绕组变形的原因，提出了日常维护的建议，并提出为了避免类似缺陷的发生，设计大型变压器时，应优化产品设计和制造工艺。同时，改善变压器运行环境也是一项重要措施。

Abstract: This article introduces a defect of severe deformation of the medium voltage winding of a 220 kV transformer discovered through routine tests. Analyzed the reasons for the deformation of the medium voltage winding of the transformer. Suggested daily maintenance. To avoid similar defects, product design and manufacturing processes should be optimized when designing large transformers. Meanwhile, improving the operating environment of transformers is also an important measure.