智能变电站简易母线保护

发布时间：2018-04-02 10:25

本文选题：智能变电站　切入点：中低压母线　出处：《电力系统自动化》2017年14期

【摘要】：分析了低压母线的保护配置现状,提出了一种简易母线保护新方案。该方案根据低压母线主接线特点抽象出母线单元模块,各母线单元模块根据本母线进线、分段开关的过流情况及其他母线单元模块的开关过流情况,结合出线保护的闭锁信号,实现小电源、进线和分段的选择性跳闸,达到快速切除母线故障的目的。
[Abstract]:This paper analyzes the present situation of the protection configuration of low voltage busbar, and puts forward a new scheme of simple busbar protection.According to the characteristics of the main connection of low voltage bus, this scheme abstracts the bus unit module. Each bus unit module is based on the input of the bus line, the over-current situation of the segment switch and the switching overcurrent of other bus unit modules, and combined with the locking signal of the output line protection.The small power supply, feed line and selective tripping are realized, and the bus fault can be removed quickly.
【作者单位】：南京南瑞继保电气有限公司;南瑞集团公司(国网电力科学研究院);国网东海县供电公司;
【分类号】：TM63;TM773

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