摘要
对江苏电网500 kV变压器受到直流偏磁的影响所产生和问题进行分析,直流偏磁导致变压器噪声增加、变压器铁心过热、变压器温升增大,对电网安全运行极为不利。通过理论分析和实测数据计算,分析直流偏磁对电网设备的影响。
This paper analyzes the impacts of long-time DC biasing magnetism on 500 kV transformers in Jiangsu Power Network. Long-timeDC biasing magnetism caused by DC transmission line makes significant impacts on noise, harmonics, losses, and temperature rise of the coreand windings of transformers. According to theoretical analysis and calculations of testing data, the impacts of long-time DC biasingmagnetism on power network equipments are analyzed.
出处
《中国电力》
CSCD
北大核心
2004年第8期41-43,共3页
Electric Power
关键词
直流偏磁
变压器
噪声
温升
太阳磁暴
DC biasing magnetism
transformer
noise
temperature rise
magnetic storm
