摘要
从主变压器差动保护原理出发,探讨了主变压器差动保护CT极性校验方法,详细分析了蓄能电站主变压器差动保护CT极性校验新方法的原理、试验设备容量计算及设备选型方法和试验程序,解决了蓄能电站主变倒受电前其差动保护CT极性校验难题,并对两种试验方法的优缺点进行了对比分析。
Based on the principle of main transformer differential protection,this paper discusses the CT polarity verification method of main transformer differential protection.The principle,calculation of device capacity,equipment selection method and test procedures of the new method are analyzed in detail,the difficult problems in differential protection CT polarity verification before back energization to the main transformer in the pumped storage power station are solved and the advantages and disadvantages of two test methods are comparatively analyzed.
出处
《水电站机电技术》
2010年第4期16-19,共4页
Mechanical & Electrical Technique of Hydropower Station
关键词
主变压器
差动保护
极性校验
方法
main transformer,differential protection,polarity verification,method
