脉冲在线注入法检测变压器绕组变形装置

A Device of Detecting Transformer Winding Deformation Based on Pulse Injection Method

脉冲在线注入法可有效检测电力变压器绕组变形,该方法的成功应用需要可靠的检测装置,本文提出了一种检测装置,该装置是由便携式带电检测仪,信号保护电路,电容式耦合传感器,电容分压器,信号检测终端等组成,电容式耦合信号装置是其重要组成部件对绝缘子绝缘性能有重要影响,保护电路可以保证脉冲方波的完整注入以及防止过电压对设备的影响,信号检测终端可以检测脉冲信号的输出。利用此装置可有效的对变压器绕组的各类故障进行检测。此装置的研发为电力变压器绕组故障在线检测奠定了基础。

Pulse online injection method could effectively detect the power transformer winding deformation, the successful application of this method required reliable detection device, this proposes a detection device, which was composed of a portable electric meter, signal protection circuit, sensor, capacitive coupling capacitor voltage divider, and other components of the signal detection terminal, capacitive coupling signal device was the important component parts which had important influence on the performance of insulators insulation, protection circuit could ensure that the pulse square-wave complete injection and preventing overvoltage of equipment, the influence of signal detection could detect the pulse signal output terminal. It could effectively aU kinds of fault detection of transformer winding, the development of the device laid a solid foundation in the online detecting of transformer winding deformation.