this paper presents a novel method for short-circuit current calculation, using zero impedance branch to simulate electrical equipment ( such as circuit breaker ) 提出了将电气设备(如断路器等)用一条零阻抗支路模拟的短路电流计算方法。
it utilizes zero impedance branch characteristic, combining structure-transform and structure-static short-circuit current calculation method to calculate the short-circuit current directly through the electrical equipment when short-circuit fault takes place at the two sides of the electrical equipment, and settles the problems that the traditional method cannot directly figure out the short-circuit current 该方法利用零阻抗支路特点,结合定结构和变结构短路电流计算方法,能够直接求出在电气设备两侧分别发生短路时,通过电气设备(如断路器)的短路电流,从而合理地解决了传统的故障分析方法不能直接求出流过设备的短路电流的问题。
zero impedance meaning:[Electronics] 1. Absence of impedance (a theoretically ideal condition). 2. In some circuits, the lowest impedance level, to which all other impedances are referred.