利用频域分段技术提高变压器绕组变形测试的准确性  

Improvement on Detection Correctness of Transformer Winding Deformation by Frequency Domain Division Technology

作　　者：孙强[1] 

机构地区：[1]西北电力试验研究院,陕西西安710054

出　　处：《变压器》2000年第7期20-22,共3页Transformer

摘　　要：目前判断变压器绕组变形主要采用频率响应分析法。由于不同频率段反映的变形信息不同 ,因此将频率段按照谐振点个数平均划分为三个区段。通过对各频段上的相关性比较可以有助于提高判断绕组变形的准确率。The main way on the detection of transformer winding deformation is FRA method. The resonant points of frequency response curve at different frequency represent different information of winding deformation. So the frequency domain should be divided into three sections according to the extreme points. It is helpful to increasing the correctness on detection of transformer windings by analyzing the correlative parameters of every frequency domain.

关 键 词：变压器 绕组 变形 频率响应 测试 频域分段技术 

分 类 号：TM4[电气工程—电器]