一次故障时二次电缆上的暂态过电压计算

The Calculation of Transient Overvoltages on the Signal Cable Conductors Ocurring Equipment Faulting in Power System

研究了电力系统中一次设备故障时二次电缆芯线上暂态过电压计算的电路模型，电缆参数的计算方法和程序。用电磁暂态计算程序（ＥＭＴＰ）计算了某５００ｋＶ系统发生单相接地短路时，二次电缆芯线上的过电压。

This thesis studies circuit model for calculating transient overvoltages on the signal cable conduuctors,and the computational method and program of cable parameters.The transient overvoltages on the signal cable conductors ocurring equipment faulting in a 500 kV power system is calculated by EMTP.