电厂6 kV脱硫段快切切换失败原因分析  

Analysis on Failure Causes of 6 kV Fast Switching in Desulfurization Section of a Power Plant

作　　者：张瑞明 ZHANG Ruiming(Zhejiang Zheneng Jiahua Power Generation Co.,Ltd.,Jiaxing,Zhejiang 314201,China)

机构地区：[1]浙江浙能嘉华发电有限公司

出　　处：《山西电力》2019年第4期35-37,共3页Shanxi Electric Power

摘　　要：某厂集控操作员在操作台正常手动并联切换启动脱硫快切,由脱硫6 kV工作段切换至启备变供电过程中,经常出现6 kV工作进线开关分闸线圈烧毁或脱硫快切装置分备用进线节点烧毁的现象,导致切换失败。对几次切换失败的情况进行了综合分析,并提出了改进措施,从而提高了6 kV脱硫段快切切换成功率。When the centralized control operator of a factory starts the fast switching at desulfurization section by manual parallel switching through the operation console,switching from6 kV desulfurization section to the power supply of the standby transformer,the burning phenomenon of the switching coil of 6 kV incoming line or standby line node of desulfurization fast switching device occurred frequently,resulting in switching failure.This paper comprehensively analyzed several incidents of switching failures,and proposed improvement measures,thereby improving the success rate of desulfurization fast switching.

关 键 词：快切 切换失败 分闸线圈 继电器 断路器 

分 类 号：TM762[电气工程—电力系统及自动化]