浅析变压器相间后备保护整定计算的改进方法  

A Study about the Modification for the Back-up Protective Setting of Transformer Interphases

作　　者：高雯 刘平香 王国功 魏莉 

机构地区：[1]固原供电局,宁夏固原756000

出　　处：《宁夏师范学院学报》2008年第6期31-34,共4页Journal of Ningxia Normal University

摘　　要：通过分析变压器热稳定要求,总结了变压器后备保护定值整定应考虑的相关问题,并对变压器设计、运行及其保护配置与整定提出了建议.实践证明,采取的对策直接、有效地解决了矛盾,使变压器更加安全稳定地运行.The thermal stability is in contradiction with the setting value for the back-up protection of the transformer because of the cascaded fitting required limitation of setting. Through analyzing the transformer thermal stability, this paper summarizes some correlative problems of setting values that should consider for transformer back-up protection, and it offers some suggestions about design, service, protective installation and setting method of the transformer. Practice has been proved that the adopted solution directly and usefully solves the contradiction, and making the transformer more securely and stably service.

关 键 词：变压器 热稳定 保护配置 整定 

分 类 号：TM403.5[电气工程—电器]