特高压变压器冷却器启动延时不满足反措要求分析及解决方案  

Analysis and Solution of the Time Delay of the Transformer Cooler Circuit Didn′t Meet the Countermeasure in UHV Station

作　　者：夏石伟 吴良军 尹恒 余俊敏 XIA Shiwei;WU Liangjun;YIN Heng;YU Junmin(Maintenance Branch,State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]国网浙江省电力有限公司检修分公司,浙江杭州310000

出　　处：《电工技术》2018年第19期120-121,共2页Electric Engineering

摘　　要：阐述特高压变电站主变主要生产厂家冷却器延时情况,结合国家电网公司十八项反措要求,提出两种可行的修改方案,并通过分析两种修改方案对主变冷却系统回路的影响及两种修改方案的优缺点,提出最佳解决方案。理论和实际应用证明,最优解决方案可解决冷却器延时不满足反措要求的问题,提高了特高压设备工作的可靠性和稳定性。The cooler delay conditions of main manufacturers of main transformer in UHV substation were introduced.Combined with the State Grid Corporation of China countermeasure,two feasible modifications were proposed.Through analysis of influence of the two modifications on the cooling system of main transformer circuit and the advantages and disadvantages of the two schemes,the optimal solution was proposed.Theoretical and practical application proved that the problems of cooler circuit didn′t meet the countermeasures was solved and the reliability and stability of UHV equipment were improved.

关 键 词：冷却器 信号回路 继电器 

分 类 号：TM761[电气工程—电力系统及自动化]