Excitation signal source for monitoring deformation of transformer winding

According to the excitation signal source for transformer winding deformation monitoring, the digital generator is used as a signal generation module, accurate high-amplitude and high-power signal output can be achieved, the requirement for transformer winding deformation online monitoring is met, the signal output by the excitation signal source can be adjusted according to the monitoring requirement, and the monitoring accuracy is improved. Further, according to the embodiment, a magnetoelectric coil structure is used as a signal output module, forward transmission and reverse cut-off of the signals are achieved through the magnetoelectric conversion characteristic, and the signal source is protected against interference of the power frequency current of the transformer. 本申请提出一种用于变压器绕组变形监测的激励信号源，使用数字发生器作为信号发生模块，可实现精准的高幅值大功率的信号输出，从而满足对变压器绕组变形在线监测的要求，激励信号源输出的信号可以根据监测需求调整，实现对信号的精准控制，进一步的实施例使用磁电线圈结构作为信号输出模块，利用磁电转换特性实现信号的正向传输和反向截止，保护信号源不受变压器工频电流的干扰。