10kV电力系统三相短路计算的方法

选择电气设备、整定继电保护、确定电气主接线方案、考虑限制短路电流的措施及分析电力系统是短路计算的最终目的。所谓短路是指不同电位导电部分之间的不正常短接，既有相与相之间导体的金属性短接或者经小阻抗的短接，也有中性点直接接地系统或三相四线制系统中单相或多相接地（或接中性线）。

Computing Method Of Three-phase Shortcircuit For 10KV Electric System

The final purpose of short circuit calculation is to select electric equipment, set relay protection, determine the main electrical connection solution, consider the measures to limit the short circuit current and analyze electric system. What short circuit is that the current-carrying part of the different electric potentials are connected abnormally, which is not only the metal short circuit connection of conductors between phase and phase or short circuit connection through small reactance, but also single-phase or multiphase ground (or connectting to neutral line) in neutral-point solid ground system or three-phase four-line system.