110kv线路继电保护课程设计.doc

110kv线路继电保护课程设计

110KV线路继电保护课程设计
[摘要]：为给110KV单电源环形电网进行继电保护设计，首先选择过电流保护，对电网进行短路电流计算，包括适中电流的正序、负序、零序电流的短路计算，整定电流保护的整定值。在过电流保护不满足的情况下，相间故障选择距离保护，接地故障选择零序电流保护，同时对距离保护、零序电流保护进行整定计算，并用AUOCAD绘制出保护配置原理图。
[关键词]：继电保护、短路电流、整定计算
[ summary]: In order to ring 110 KV single power grid to relay design, the first choice over-current protection, short-circuit current of the power network, including the positive sequence moderate current, negative sequence, zero-sequence of short-circuit current, the current protection of the entire tuning value. In the over-current protection are not satisfied with the circumstances, select a distance phase fault protection, choice of zero-sequence fault current protection At the same time, distance protection, and zero-sequence current protection to the entire set, and used to map out protection configuration AUOCAD schematic.
[keywords]: Protection, short-circuit current, setting calculation