变压器温控器原理及故障分析

Principle and Failure Analysis of Transformer Temperature Controller

本文简要介绍了变压器温控器的功能,以及变压器油面、绕组温度的测量方法,然后分别介绍了BWY-804J(TH)型压力式变压器油面温控器和基于热模拟技术的BWR-04J(TH)型绕组温控器的结构、原理和校验方法,并重点描述了绕组温控器热模拟装置的整定过程,最后,结合文都变500kV II母高抗故障案例,阐述了温控器现场故障的排查方法。

This paper briefly introduces the function of transformer temperature controller, and the tem- perature measuring method of transformer oil level and winding hot-spot, then respectively introduces the structures, principles and test methods of BWY-804J（TH）pressure type transformer oil level temperature controller and BWR-04J（TH）winding hot-spot temperature controller based on thermal simulation tech- nology. Mainly the tuning process of winding hot-spot temperature controller simulation device is de- scribed, and then the investigation method of field failure is described, combined with the case of Wendu 500kV II busbar high voltage reactor fault.