大型发电机组中两级组合式大电流互感器的技术探讨  

Discussion on Technology of Two-stage Combined Large Current Transformer in Large Generator Set

作　　者：沙玉洲 李淑兰 刘爽 何艳坤 王慧 汪毅 SHA Yuzhou;LI Shulan;LIU Shuang;HE Yankun;WANG Hui;WANG Yi(Dalian No.1 Instrument Transformer Co.,Ltd.,Dalian 116200,China;North China Power Engineering Co.,Ltd.,China Power Engineering Consulting Group,Beijing 100120,China;Central Southern China Power Engineering Co.,Ltd.,China Power Engineering Consulting Group,Wuhan 430000,China)

机构地区：[1]大连第一互感器有限责任公司,辽宁大连116200 [2]中国电力工程顾问集团华北电力设计院有限公司,北京100120 [3]中国电力工程顾问集团中南电力设计院有限公司,湖北武汉430000

出　　处：《变压器》2024年第2期22-25,共4页Transformer

摘　　要：本文作者针对大型发电机组中两级组合式大电流互感器的设计进行分析与论述,提出了其优点及应用的局限性,并最终确定一级式电流互感器是更合理的技术方案,解决了用户在进行技术方案选择时遇到的难题,以供大家在大电流互感器进行设计制造及选用时作技术参考。The design of two-stage combined large current transformer in large nuclear power units is analyzed and discussed by the authors in this paper,and its advantages and application limitations are put forward.Finally,the one-stage combined large current transformer is determined to be a more reasonable technical solution,which solves the problem encountered by users in the selection of technical solutions.It can be used as a technical reference in the design,manufacture and selection of large current transformer.

关 键 词：大电流互感器 仪表保安系数FS 两级组合式电流互感器 稳态保护 暂态保护 

分 类 号：TM452[电气工程—电器]