流动状态下绝缘油中气泡放电特性和影响因素的研究

Study on Bubble Discharge Characteristics and Influencing Factors in Insulating Oil Based on Flow State

目前,绝缘油是我国电网建设中变压器设计普遍采取的基本材料。通过对流动状态下绝缘油中出现的气泡进行特性研究,能够判断变压器的工作状态。研究过程中,首先借助实验测量的方法对流动状态下的绝缘油进行PD信号测量,再根据测量结果分析其放电特性。最终,通过分析可以将影响绝缘油气泡放电特性总结为绝缘油流速和绝缘油温度两个方面。

Insulation oil is a basic material widely used in transformer design in power grid construction in our country at present. The working state of transformer can be judged by studying the characteristics of bubbles in insulating oil in flowing state. Firstly, the PD signal of insulating oil in flowing state is measured by means of experimental measurement, and then the discharge characteristics of insulating oil are analyzed according to the measured results. The bubble discharge characteristics of insulating oil can be summarized as two aspects： insulation oil velocity and insulation oil temperature.