摘要
以清蓄电厂为例介绍利用主变压器充电时的励磁涌流校核差动保护极性的可行性分析和实践过程,该方法克服电厂负荷低的困难,利用励磁涌流电流导相偏置的特点开展带负荷检查,具有实际工程意义,可供新并网厂站校核差动保护极性作参考。
Taking Qingyuan power plant as an example, the feasibility analysis and practice are introduced using the main transformer charging excitation inrush current to check the polarity. The methed can overcome the difficuties of low load and check polarity of the differential protectin with load by the characteristics of inrush current pilot bias. The result illustrate this method has engineering significance, and it can be a reference for new power plant to check the polarity of the differential protection.
出处
《湖南电力》
2016年第6期26-29,共4页
Hunan Electric Power
关键词
励磁涌流
差动保护
TA
极性
inrush current
differential protection
TA
polarity
