多端屈兰斯雷型差动保护  

Pilot relay TRANSLAY for multi-ended system

作　　者：刘建凯 Liu Jiankai(Schneider Electric(China)Co.,Ltd,Shanghai Branch,Shanghai 201203)

机构地区：[1]施耐德电气(中国)有限公司上海分公司,上海201203

出　　处：《电气技术》2020年第5期90-94,共5页Electrical Engineering

摘　　要：本文提出了一种将屈兰斯雷型装置应用于T接线路等多端输配电线路的差动保护方法。该方法采用将被保护线路各端屈兰斯雷型装置的导引线并联接线,并利用新的动作方程来实现故障判断。理论研究和试验分析表明所提出的方法是正确有效的,具有实现简单的特点。This paper presents a novel differential protection for the multi-ended system like T connection system by using the existing pilot relay TRANSPLAY. The pilot wires of the TRANSLAY relays at each end would be connected in parallel and then the new characteristic formula would be used for the relay to detect the fault in the protected zone. Theory analysis and simulation studies show that the new scheme is correct. It shows that it is easy to implement the scheme.

关 键 词：导引线保护 差动保护 相位比较 分支线路 

分 类 号：TM75[电气工程—电力系统及自动化] TM773