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A New Approach to Estimate Activation Energy of Oil-impregnated Pressboard Stressed under Switching Impulse at Different Temperatures
IEEE Transactions on Dielectrics and Electrical Insulation ( IF 3.1 ) Pub Date : 2021-08-17 , DOI: 10.1109/tdei.2021.009514
A. K. Pradhan , S. Tenbohlen

This paper presents an advanced technique for calculating activation energy of oil-impregnated pressboard through dielectric response current measurement under switching impulse voltage at different temperatures. The proposed technique analyzes the measured impulse voltage and current signals to formulate its equivalent circuit at different temperatures. The equivalent circuit parameters are utilized to determine the shifting of ac conductivity curve along frequency axis with variations in temperatures. Based on the shifted ac conductivity curves at different temperatures, the corresponding activation energy of the insulation is estimated. The effectiveness of the proposed technique is investigated through a few laboratory prepared test samples.

中文翻译:

一种估算不同温度下开关脉冲应力作用下浸油纸板活化能的新方法

本文提出了一种通过测量不同温度下开关脉冲电压下的介电响应电流来计算油浸纸板活化能的先进技术。所提出的技术分析测量的脉冲电压和电流信号以制定其在不同温度下的等效电路。等效电路参数用于确定交流电导率曲线随温度变化沿频率轴的偏移。根据在不同温度下移动的交流电导率曲线,估计绝缘体的相应活化能。通过一些实验室准备的测试样品来研究所提出技术的有效性。
更新日期:2021-08-20
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