变压器绕组电阻零时间常数测量方法的研究

STUDY OF THE MEASURING METHODS OF ZERO-TIME CONSTANT FOR COIL-BLOCK IN TRANSFORMERS

在分析RL电路过渡过程的基础上,提出了以一次函数电流源作为特定激励源,完全避开了时间常数的概念,通过分析,若在RL电路两端施加的电压u(t)是一次函数,则该一次函数的斜率就是电阻R,截距就是电感L。

Based on an analysis of the transition process in RL circuit, this paper proposes that a linear function be used as the exciting source without consideration of the time constant. When the electric voltage, u（t） , applied to both ends of the RL cireuit is a linear function, the slope of the function should be electric resistance R and its intereept shouht be inductance I.