大唐鲁北发电厂厂用6kV系统零序保护误动及二次接线的分析  

Datang Lubei Power Analysis on Zero Sequence Protection Misoperation and Secondary Wiring Analysis in Plant Auxiliary Power System with 6kV Voltage Level

作　　者：王茂松 葛照忠 李占旺 

机构地区：[1]大唐鲁北发电厂,山东滨州251909

出　　处：《电气技术》2013年第8期34-36,共3页Electrical Engineering

摘　　要：本文针对大唐鲁北发电厂零序保护误动进行了分析,提出了抗干扰的措施。并在电动机由两根以上一次电缆穿过两个以上零序电流互感器供电时,对零序电流互感器二次接线的串并联进行了分析,保证继电保护装置不误动或拒动。This paper analyses zero sequence protection misoperation of Datang Lubei power plant and offers some anti-interference measures. Meanwhile, in order to avoid misoperation or refusing to move of the relay protection device, it analyses the zero sequence current transformer series-parallel of the secondary connection, when the motors are supplied with more than two cables through more than two above zero sequence current transformer.

关 键 词：误动 抗干扰 零序电流互感器 串并联 拒动 

分 类 号：TM621[电气工程—电力系统及自动化]