电力系统线路零序电流保护整定计算程序

Calculating Program for Settings of Zero-sequence Current Protection of Transmission Line

介绍了湖北电网零序电流保护整定计算程序的主要功能和特点。程序可以根据网络结构自动进行线路零序电流 、 、 段整定计算和相应灵敏度、保护范围的自动计算 ,所有运行方式程序自动考虑完成 ,并形成完整的中文方案和定值通知单。

The major function and features of the calculating program for settings of zero sequence current protection of Hubei power system were described.This program can calculate the zero sequence current settings of Ⅰ,Ⅱ,Ⅲ level,its responding sensitivity and protection range automatically according to the structure of power system.All operation mode can be determined automatically.A complete scheme in Chinese and notice of settings can be given.The calculating method for unbalanced zero sequence current of double circuit was described in detail.