摘要
继电保护屏顶二次电压母线的剪断或退出工作经常会造成电压回路的短路,从而引发事故,影响整个变电站的安全运行。针对当前保护装置屏顶二次电压母线存在的问题进行了分析,提出并实施了采用全封闭接线方式和引入交流电压分线屏的两种新型改进方案。结果表明,改进后的方案完全满足电力设备运行的各种要求,缩短了工作时间,降低了误碰短路的几率,从而提高了工作效率,为企业带来效益。
It is easy to cause the short fault of voltage circuit when cutting er withdrawing the secondary voltage busbar of panel top in protection device, thereby causing the accident and influencing the safe operation of the whole substation and devices. To solve these problems, this paper presents and implements two new improvement schemes, namely adopting the totally enclosed connection mode and the AC voltage panel board. The results show that the improved schemes meet the requirements of equipment operation, can shorten the working time and reduce the probability of the short fault due to accidental touch, and finally improve the work efficiency and benefit the enterprise.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第16期151-154,共4页
Power System Protection and Control
关键词
变电站
保护装置
二次电压母线
方案
substation
protection device
secondary voltage busbar
scheme
