常规站和智能站中的110 kV线路间隔保护双套配置方案

Doubled Configuration Scheme of 110 kV Line Protection in Conventional Substations and Intelligent Substations

随着用户对保护可靠性要求的提高,新扩间隔越来越多地采用了双套配置的110 kV线路保护,这种配置方式不同于传统220 kV线路保护的双套配置,在改扩建过程中要与原设计为单套的其他设备配合,因此在现场实践中会有很多特殊的处理方式。主要介绍两种实践中的配合方式,一种为常规站中110 kV双套线路保护和其他设备及回路的配合关系,另一种为智能站中110 kV双套线路保护和其他设备及回路的配合关系。

With the increase of users'requirements for protection reliability,more and more 110 kV line protection with doubled configuration is adopted for new expansion intervals,which is different from the traditional double configuration of 220 kV line protection.In the process of renovation and expansion,it is necessary to cooperate with other equipment originally designed as a single set,so there will be many special treatment methods in field practice.Two cooperation methods in practice are introduced:one is the coordination relationship between 110 kV double line protection and other equipment and circuits in conventional substations,and the other is the coordination relationship between 110 kV double line protection and other equipment and loops in intelligent substations.