改进的Dy11接线变压器直流电阻测试方法  

Improved Method to Measure DC Resistance of Dy11 Connection Mode Transformer

作　　者：刘尹[1,2] 龚之光[1,2] 周亮[1] 蒋献伟[1] 

机构地区：[1]上海市电力公司青浦供电公司,上海201700 [2]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《供用电》2012年第5期67-69,共3页Distribution & Utilization

摘　　要：Dy11接线的变压器在进行直流电阻测试时,若多次更换外部接线和充放电会直接影响试验的效率。提出了一种基于固定电阻的改进的Dy11接线变压器直流电阻测试方法,介绍了改进后的直流电阻测试仪的内、外部接线方式和电阻值的计算方法。实际应用表明该方法可以大大缩短试验时间,提高工作效率。When measuring the DC resistance of Dyl 1 connection mode transformer, frequently replacing the external connection,charging and discharging supply direct influence the efficiency of testing. Consequently,an improved method to measure DC resistance of IDyll wiring mode transformer is proposed. The internal and external connections of improved DC; resistance tester and calculation method of resistance value are introduced. The practical applications indicate that the improved method can decrease the testing time and advance the work efficiency.

关 键 词：变压器 直流电阻测试 接线 绕组 

分 类 号：TM76[电气工程—电力系统及自动化]