核电厂核岛直流系统绝缘故障点查找策略  

Insulation Fault Point Finding Strategy of Nuclear Island DC System in Nuclear Power Plant

作　　者：于永强 曹望刚 李嘉敏 YU Yongqiang;CAO Wanggang;LI Jiamin(CNNP Nuclear Power Operation Management Co.,Ltd.,Jiaxing 314300,China)

机构地区：[1]中核核电运行管理有限公司,浙江嘉兴314300

出　　处：《电工技术》2022年第10期53-55,58,共4页Electric Engineering

摘　　要：阐述了直流系统母线绝缘监测、支路绝缘监测及便携式绝缘监测的原理,以秦山第二核电厂1号、2号机组核岛直流系统为例,根据绝缘报警进行分析,总结出一套查找秦山第二核电厂直流48 V电源及配电系统绝缘故障的最优策略,为核电厂核岛直流电源及配电系统的稳定运行和维护提供帮助。The principles of bus insulation monitoring, branch insulation detection and portable insulation test of DC system are introduced. Taking the nuclear island DC system of units 1 and 2 of Qinshan No.2 nuclear power plant as an example, according to the example of insulation alarm, a set of optimal strategies for insulation fault detection of 48 V DC power supply and distribution system of Qinshan No.2 nuclear power plant is summarized, which provides useful help for the stable operation and maintenance of DC power supply and distribution system of nuclear island in nuclear power plant.

关 键 词：核电站 直流系统 绝缘 

分 类 号：TM07[电气工程—电工理论与新技术]