内蒙古电力技术2025，Vol.43Issue(5)：71-75,5.DOI:10.19929/j.cnki.nmgdljs.2025.0064
220kV变压器绕组变形故障分析
Analysis of 220 kV Transformer Winding Deformation Fault
翟文杰 1王振国 1宁飞 1许阳 1张旭 1周广峰1
作者信息
- 1. 内蒙古电力(集团)有限责任公司乌海供电分公司,内蒙古 乌海 016000
- 折叠
摘要
Abstract
During a power outage test on a 220 kV transformer,it is found that the data and waveform of the test items such as dielectric loss,capacitance and short-circuit impedance are abnormal.Through the comprehensive diagnosis and analysis of oil chromatography test,dielectric loss and capacitance test,short-circuit impedance test and so on,it is preliminarily determined that there may be deformation in the windings of the medium voltage side and low voltage side of the transformer.After returning to the factory for inspection,the correctness of the theoretical analysis is verified.It is suggested that routine tests and other routine operation and maintenance of transformers should be carried out regularly.关键词
变压器/绕组变形/电容量/短路阻抗/吊罩检查/频响法Key words
transformer/winding deformation/capacitance/short circuit impedance/hanging hood inspection/frequency response method分类
信息技术与安全科学引用本文复制引用
翟文杰,王振国,宁飞,许阳,张旭,周广峰..220kV变压器绕组变形故障分析[J].内蒙古电力技术,2025,43(5):71-75,5.
