一起500kV变压器油色谱数据异常的分析Abnormal Data Analysis for Oil Chromatography of a 500 kV Transformer
应高亮
YING Gao-liang (Jinhua Electric Power Bureau
摘要(Abstract)：
某500kV变电站3号主变在投产试运行期间,发现B相变压器油中溶解气体的色谱试验结果出现异常,经过分析后判断设备内部发生过热故障,在试运行期间及时退出运行,进行缺陷分析和故障点的查找,最终找到了故障点,避免了变压器故障的进一步发展和事故的发生,为今后新设备投运后的技术监督积累了经验。
Chromatography test result of dissolved gas in Phase B transformer is found abnormal during the trial-run period of #3 main transformer in a 500 kV substation. The analysis shows that the fault is caused by overheating inside the device. The fault point is found eventually by fault analysis and fault point detection after timely withdrawal from trial run so that it prevents worsening of transformer fault and accidents and provides experiences for technical supervision of new equipment operation in future.
关键词(KeyWords)：
主变;试运行;溶解气体;产气速率;高温过热
main transformer; trial run; dissolved gas; gas generation rate; high temperature overheating
基金项目(Foundation):
作者(Author):
应高亮
YING Gao-liang (Jinhua Electric Power Bureau
DOI: 10.19585/j.zjdl.2010.08.005