一起500kV变电站主变噪声异常分析及处理

Analysis of Abnormal Main Transformer Noise and Its Treatment Measures in 500kV Substation

分析了浙江某500kV变电站内两台主变噪声异常的原因,介绍了该站的测试方案和主变中性点加装交、直流限流电抗器限制直流偏磁的措施。

The reasons of abnormal main transformer noise in 500kV substations in Zhejiang province are analyzed.The test program and the measures to add transformer neutral point AC and DC current limiting device are introduced.