主变冷却器二次控制回路研究  

Study on the Secondary Control Loop of the Main Transformer Cooler

作　　者：高海龙 张治 刘鑫 赵志浩 李游 黄学海 卿俊杰 张超 GAO Hailong;ZHANG Zhi;LIU Xin;ZHAO Zhihao;LI You;HUANG Xuehai;QING Junjie;ZHANG Chao(Chengdu Power Supply of State Grid Sichuan Electric Power Company,Chengdu 610000,China)

机构地区：[1]国网成都供电公司,四川成都610000

出　　处：《电工技术》2020年第15期80-81,共2页Electric Engineering

摘　　要：变压器的冷却器辅助系统决定了变压器的容量及其负载损耗,是变压器发展的关键,必须满足稳定可靠性要求。为此提出了一种可满足现场运行要求的冷却器启动控制回路和冷却器失电跳闸控制回路,其中冷却器启动控制回路具有自行投退功能,冷却器失电跳闸控制回路具有瞬时告警并带延时跳闸功能,有利于变压器长期安全可靠运行。The auxiliary system of the transformer cooler determines the capacity of the transformer and its load loss,which is the key to the development of the transformer and must meet the requirements of stable reliability.A kind of start-up control circuit and trip control circuit which could meet the requirements of field operation was proposed.The start-up control circuit of the cooler had the function of self-switch on and off,and the trip control circuit of the cooler had the function of instantaneous alarm and delay trip,which was beneficial to the long-term safe and reliable operation of the transformer.

关 键 词：变压器 冷却器 启动回路 跳闸回路 

分 类 号：TM774[电气工程—电力系统及自动化]