【摘要】 提出了1种能够适合带保护线的全并联AT供电系统的故障测距方案。首先根据转移阻抗法推导出带保护线的全并联AT供电系统的测距公式,再找到带保护线的AT供电方式故障测距公式中阻抗的计算方法,解决了目前没有带保护线等值电路情况下的阻抗计算问题,最后运用Matlab/Simulink仿真验证故障测距公式的适用性。更多还原

【Abstract】 This paper puts forwards a method to find the fault location suitable for the condition of all parallel AT power supply system with protection wire. The first step is to adopt the method of transfer impedance to deduce the formula of finding fault location under the condition of all parallel AT power supply system with protection wire, the second step is to calculate the impedance in the fault location expression of AT power system with protection wire. The problem of calculating impedance without protection wire and under the equivalent circuit is solved. Finally, by simulation with MATLAB/SIMULINK, the method is proved to be applicable for fault location of the all parallel AT power system with protection wire.更多还原