110kV输电线路继电保护设计

Relay Protection Design of 110 kV Transmission Line

针对110 kV输电线路的继电保护设计,重点介绍线路的电流速断保护和定时限过流保护的作用原理、范围,动作时限的特性,整定原则等,对输电线路进行了短路计算及其保护的整定计算,灵敏度校验和动作时间整定,通过计算和比较从而确定了输电线路保护的选型。最后介绍了自动重合闸的要求与类型。

Aiming at the relay protection design of 110 kV transmission line,this paper focuses on the action principle,scope,characteristics of action time limit and setting principle of current quick break protection and time limit over-current protection.The short-circuit calculation,setting calculation of protection,sensitivity check and action time setting of transmission line are carried out.Through calculation and comparison,the selection of transmission line protection is determined.Finally,the requirements and types of auto reclosing are introduced.