检测变压器绕组变形的低压脉冲法的研究

对变压器绕组变形的低压脉冲检测法进行了研究。简要介绍了低压脉冲法检测绕组变形的基本原理，对影响低压脉冲法检测变压器绕组变形测试结果的因素进行了考察，并利用测试系统对模拟不同部位、不同种类变形故障的模型变压器进行了测试，提出可根据变压器绕组时域响应波形的畸变及变压器传递函数频谱图的变化来判断变压器绕组是否发生变形故障。

A Study of the Low Voltage Impulse Method for Detecting the Transformer Winding Deformation

The low voltage impulse (LVI) method for detecting the transformer winding deformation is presented. The fundamental principle of the LVI method is introduced ,and the factors affecting the measurement are studied.Then a transformer model in different parts of which the different kinds of deformation can be simulated is used for test. It is found that the distortion of the response signals and the change of the frequency spectrum of the transformer function can be used for detecting the deformation of the transformer winding.