660MW机组电弧光保护误动作分析及优化  

Analysis and Optimization of Misoperation of Arc Light Protection in 660MW Unit

作　　者：胡凯波 HU Kaibo(Zhejiang Zheneng Lanxi Power Generation Co.,Ltd.,Lanxi 321100,China)

机构地区：[1]浙江浙能兰溪发电有限责任公司,浙江兰溪321100

出　　处：《电工技术》2019年第8期89-90,92,共3页Electric Engineering

摘　　要：电弧光保护在母线发生弧光短路时能快速切除故障,保护人身和设备的安全。本文针对发生在660 MW火电机组输煤系统中压开关柜上的电弧光保护误动作引起母线失电的事件,查找误动原因的,并对电弧光保护动作判据传输上的设计缺陷进行优化,以提高电弧光保护的动作可靠性。When arc light short circuit occurs in busbar,the arc light protection device can quickly remove faults and protect personal and equipment safety.Taking the busbar power loss caused by the misoperation of arc light protection on medium voltage switchgear in 660 MW coal conveying system as an example,this paper optimized the design defects of current arc light protection operation criterion transmission through searching for the causes,which significantly improved the operational reliability of arc light protection.

关 键 词：电弧光保护 动作判据 传输 

分 类 号：TM77[电气工程—电力系统及自动化] TM621