基于绕组振动监测的变压器运行状态研究

Research on Transformer Operating Conditions Based on Winding Vibration Monitoring

分析了变压器故障时绕组振动的振动源以及振动产生机理,设计了变压器振动监测系统,实现变压器运行状态监测,重点对系统的振动监测变送器选型做了阐述,选用集振动监测传感器与电荷放大器于一体的LC0144S型加速度振动传感器作为系统数据采集端,通过数据处理与显示模块实现变压器运行状态的上位机显示,系统在S11-M-500/35型电力变压器进行60%规定短路电流短路振动故障试验,监测结果与理论计算结果相近,系统可靠有效。

This paper analyzes the vibration source and vibration generation mechanism of the winding vibration when the transformer is in fault,designs the transformer vibration monitoring system to realize the monitoring of the transformer operation state,focuses on the selection of the vibration monitoring transmitter of the system,Through the data processing and display module,the upper computer display of the transformer operation status is realized.The system performs 60% specified short-circuit current short-circuit vibration fault test on s11-m-500/35 power transformer.The monitoring results are close to the theoretical calculation results,and the system is reliable and effective.