浙江省220kV变电所典型设计 南瑞继保 RCS系列电气部分 - 1 - 1. 情况介绍 ...........................................................................................................................................................3 1.1 概述................................................................................................................................................................3 1.2 过程................................................................................................................................................................3 1.2.1 第一阶段:积累立案 .......................................................................................................................3 1.2.2 第二阶段:文字编写 .......................................................................................................................3 1.2.3 第三阶段:评审修改 .......................................................................................................................3 1.2.4 第四阶段:推广应用 .......................................................................................................................3 1.2.5 第五阶段:维护更新 .......................................................................................................................4 1.3 原则................................................................................................................................................................4 2. 主接线..................................................................................................................................................................5 3. 线路保护 .............................................................................................................................................................8 3.1 保护配置.............................................................................................................................................