基于扫频短路阻抗法的绕组变形测试研究  

Research on principle and field application transformer winding deformation tester based on SFSCR method

作　　者：杨超[1] 薛静[1] 李冶[1] 吴湘黔[1] 谢荣斌[1] 

机构地区：[1]贵阳供电局,贵州贵阳550000

出　　处：《贵州电力技术》2015年第9期1-6,共6页Guizhou Electric Power Technology

摘　　要：在研究变压器绕组等效电路的理论基础上研究了三种常用诊断方法——频率响应法、短路阻抗法和低压脉冲法。并对原有频响法深入研究的基础上对其进行了创造性改进获得了扫频短路阻抗法,使得一次测试能够获得频谱特征的同时,兼顾了短路阻抗特征信息的获取。对扫频短路阻抗法进行了现场试验验证,验证结果证明扫频短路阻抗法确实可行,而且比原有频响法先进,最后提出了见解。Based on the study of transformer winding equivalent circuit theory, the paper studied the basis of three commonly used diagnostic methods-frequency response method, short-circuit impedance and low pulse method. FRA and the original depth study was carried out on the creativity to improve access to the sweep circuit impedance method, so the first test at the same time was able to obtain the spectral characteristics, taking into account the acquisition of short-circuit impedance characteristic information. Short-circuit impedance method to sweep the field validation, verification results showed that the short-circuit impedance sweep was indeed feasible and more advanced than the original frequency response analysis.

关 键 词：变压器绕组 变形 频率响应法 短路阻抗法 扫频短路阻抗法 

分 类 号：TM41[电气工程—电器]