摘要
简述了影响变压器直流电阻测量准确性的一些因素,通过实例分析初步判断引起三相不平衡率超标的具体原因,并采取必要的处理措施;进一步采用另一种测试方法进行佐证,以确定初步判断的正确性,为准确判断变压器的故障部位及故障类型奠定了正确的数据基础。
This paper described some factors that affect the accuracy of transformer DC resistance measurement.Then it preliminarily judges the specific reasons of unbalanced three-phase rate exceeding through living examples.And it takes some necessary measures.Furthermore Using another method to determine the correctness of the preliminary judgment,it provides the foundation of the correct data for accurate judgment of transformer fault location and fault type.
出处
《电力学报》
2010年第4期321-324,共4页
Journal of Electric Power
关键词
变压器绕组
直流电阻
故障
transformer windings
DC resistance
fault
