时限过电流继电器动作逻辑的优化改进  

Optimized improvement for the action logic for the time limit current overloaded relay

作　　者：王刚 侯飞 

机构地区：[1]雅砻江流域水电开发有限公司,四川成都610051

出　　处：《贵州电力技术》2016年第3期38-39,58,共3页Guizhou Electric Power Technology

摘　　要：针对传统过电流保护整定值固定,不能满足系统负荷的变化等问题,为了提高时限过电流继电器的灵敏度,介绍了一种改进技术的时限过继电器动作逻辑,并通过数字仿真实验对其自适应动作电流保护的性能进行测试,结果表明这种过电流继电器能实现快速动作,具有更好的保护性能。Due to the problem that the traditional current overloaded protection setting value was fixed which cannot satisfy the variation of system loads,and in order to increase the sensitivity of time limit current overloaded relays,the paper introduced a logic for time limit current overloaded relays. The adaptive action current overloaded was tested by simulation experiment,and the results showed that this current overloaded relay can realize fast actions,which had better performance.

关 键 词：过电流 动作电流 灵敏度 测试 

分 类 号：TM58[电气工程—电器]