摘要
太阳磁暴、直流输电单极运行或非对称运行都可能引起直流偏磁。实测表明:直流输电单极运行方式会使接地极附近的中性点接地交流变压器产生严重的直流偏磁,而直流偏磁将对变压器产生噪声增大、振动加剧、谐波异常等衍生影响。
Solar magnetic storm, monopole or asymmetric operation of DC transmission may cause DC mag-netic bias. The actual test indicates that the monopole operation mode of DC transmission causes severe DC bias in neutral-grounded transformers near ground electrodes and DC magnetic bias exerts derivative influence on transformers such as increase of noise, aggravation of vibration and abnormal harmonic and so on.
出处
《浙江电力》
2014年第10期1-5,共5页
Zhejiang Electric Power
关键词
直流偏磁
变压器
噪声
振动
谐波
DC magnetic bias
transformer
noise
vibration
harmonic
