某核电厂主变冷却器控制故障分析  

Control Failure Analysis of Main Transformer Cooler in a Nuclear Power Plant

作　　者：姚瑜 刘龙 曹先慧 王福博 付佳兵 YAO Yu;LIU Long;CAO Xianhui;WANG Fubo;FU Jiabing(China Nuclear Power Operation Management Co.,Ltd.,Jiaxing 314050,China)

机构地区：[1]中核核电运行管理有限公司运行四处,浙江嘉兴314050

出　　处：《电工技术》2023年第8期142-143,146,共3页Electric Engineering

摘　　要：大型变压器广泛采用强迫油循环风冷,主变冷却器的可靠运行影响着变压器可用性。通过一起核电机组主变冷却器运行故障,结合主变冷却器的控制原理图,分析故障原因,总结主变油流继电器故障时的现象及对冷却器的运行影响,并针对主变冷却器频繁故障提出了合理化建议。Forced oil circulation air cooling is widely used in large transformers,and the reliable operation of the main transformer cooler affects the availability of the transformer.In this paper,based on the operation failure of the main transformer cooler of a nuclear power unit,combined with the control schematic diagram of the main transformer cooler,the cause of the fault is analyzed.The phenomenon of failure of the main transformer oil flow relay and its impact on the operation of the cooler are summarized,and reasonable suggestions are put forward for the frequent failure of the main transformer cooler.

关 键 词：油流继电器 变压器 冷却器 

分 类 号：TM623[电气工程—电力系统及自动化]