基于助磁法的变压器低压绕组直流电阻测试  

Test for Low-Voltage Winding DC Resistance of Transformer Based on Magnetic Circuit Method

作　　者：张春龙[1] 姚景涛 赵远新[1] 王旭[1] 

机构地区：[1]黄河万家寨水利枢纽有限公司龙口水电站,太原030000

出　　处：《内蒙古电力技术》2016年第1期70-72,86,共4页Inner Mongolia Electric Power

摘　　要：以黄河万家寨水利枢纽有限公司龙口水电站4台主变压器为例,采用助磁法进行变压器低压绕组直流电阻测试,并与传统四端法测试结果进行对比。通过对比试验数据可以看出,采用助磁法不但显著缩短了测试时间,而且提高了测试精度,是一种较为理想的变压器低压绕组直流电阻测试方法,在变压器检修工作中可推广使用。Take 4 main transformers of Longkou Hydropower Station as example, using magnetic method for DC resistance test, by comparing with traditional four terminal method find that magnetic method can not only effectively help to improve the test accuracy, but also greatly shorten the test time, it is an ideal method for DC resistance test of lowvoltage transformer winding which can be widely used in the work of transformer maintenance.

关 键 词：变压器 低压绕组直流电阻 助磁法 传统四端法 测试时间 测试精度 

分 类 号：TM930.1[电气工程—电力电子与电力传动]