Transformer winding deformation on-line detection sensing device

The invention discloses a transformer winding deformation online detection sensing device, which belongs to the technical field of electric power, comprises an energy taking unit and a signal acquisition unit, and solves the technical problem of online detection of transformer winding deformation. According to the micro-current signal detection device, a power frequency filter, a high-pass filter, an intermediate amplifier, a voltage follower and other signal conditioning circuits are designed, automatic gain amplification of micro-current signals under strong background noise can be achieved, and the micro-current signal detection device further has an anti-thunder design and can send online detection data to a data center through a wireless communication network; and the on-line monitoring function of the on-site transformer winding deformation is realized. 本发明公开了一种变压器绕组变形在线检测传感装置，属于电力技术领域，包括取能单元和信号采集单元，解决了可以在线对变压器绕组变形进行检测的技术问题，本发明直接从检测线圈上获取供电电能，并且设计了工频滤波、高通滤波、中间放大器、电压跟随器等信号调理电路，可以实现强背景噪声下微电流信号的自动增益放大，本发明还具