摘要
雅中~江西±800kV特高压直流工程建设完成后,景德镇电厂两台主变受直流偏磁影响巨大,变压器中性点接地直流超过限值,噪音和振动增大。本文简要分析直流偏磁产生原因,并介绍一种无源电容隔直装置在景德镇电厂中的良好实践。
After the construction of Yazhong Jiangxi±800kV UHV DC project is completed,the two main transformers of Jingdezhen Power Plant are greatly affected by DC bias,the grounding DC of the transformer exceeds the limit,and the noise and vibration increase.This paper briefly analyzes the causes of DC magnetic bias,and introduces the good practice of a passive Capacitor DC isolator in Jingdezhen Power Plant.
作者
胡振中
高佳
HU Zhen-zhong;GAO Jia(Jingdezhen Power Plant of State Power Investment Group Jiangxi Electric Power Co.,Ltd.,Jingdezhen 333000,China)
出处
《价值工程》
2022年第33期140-142,共3页
Value Engineering
关键词
主变
中性点
直流偏磁
电容隔直装置
无源
main transformers
neutral point
DC bias
capacitor straightening device
passive
