变压器油中多频超声波的衰减计算方法

Attenuation Calculation Method of Multi-frequency Ultrasonic Wave in Transformer Oil

电力变压器是电网运行的关键设备之一。变压器油作为传统油浸式变压器的核心材料,通过对变压器油的日常监督,提前预测变压器油的击穿电压对于保证变压器安全可靠以及电网的稳定、安全运行有重要意义。本文首先研究了多频超声检测技术,研究了多频超声波在变压器油中的衰减特性,有利于后续研究多频超声波声学参量与变压器油击穿电压之间的联系。

A power transformer is one of the key equipment in power grid operation.Transformer oil is the core material of traditional oil immersed transformer.Through the daily supervision of transformer oil,it is important to predict the breakdown voltage of transformer oil in advance to ensure the stable and safe operation of power transformer and power grid.In this paper,the multi frequency ultrasonic testing technology is studied firstly,and the attenuation characteristics of multi frequency ultrasonic in transformer oil are studied,which is conducive to the follow-up study of the relationship between the acoustic parameters of multi frequency ultrasonic and the breakdown voltage of transformer oil.