基于多频超声的变压器油击穿电压传播特性研究

随着智能化电网规模的逐步扩大,对电网的供电质量和安全可靠运行的要求也越来越高.变压器作为电力系统中最核心的设备之一,承担着整个电网的输变电任务,其稳定的运行状态关乎到电力系统的安全运行.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电力变压器以及电网的稳定安全运行具有现实意义.本文通过研究多频超声检测技术...

Study on transmission characteristics of transformer oil breakdown voltage based on multi-frequency ultrasound

Along with the gradual expansion of scope of smart electrified wire netting,there is higher demand for the power supply electricity and secure and steadfast operation of the power grid.As one of the most key tackle in the power system,voltage changer pursues the core assignment of power transmission and transformation of the whole power grid,and its steady operation state is related to the certain operation of the power system.Through the daily supervision of transformer oil,it is of practical significance to predict the breakdown voltage of transformer oil in advance to insure the stable operation of power transformer and grid.In this paper,the relationship between the acoustic parameters of multi frequency ultrasonic and the breakdown voltage of transformer oil is established by studying the multi frequency ultrasonic testing technology.Hope to deliver a strong assurance for the reliable operation process of the voltage changer.