摘要
将发电厂的差动保护按光纤差动保护、母差保护、变压器差动保护、发电机差动保护进行分类,分析不同保护极性配置的典型特点,针对不同特点给出校验方法,并对不同校验方法的优劣进行评价。利用此方法,可经济、有效地解决差动保护的极性校验问题,保证主设备和继电保护的可靠稳定运行。
In this paper, differential protection in power plant was classified into: optical fiber differential protection, bus differential protection, transformer differential protection and generator differential protection. Typical characteristics of different protection polarity configurations were analyzed. The verification methods were given according to different characteristics. The advantages and disadvantages of different verification methods were evaluated. According to the method given in this paper, the polarity checking problem of differential protection could be solved economically and effectively, and the reliable and stable operation of main equipment and relay protection could be guaranteed.
作者
牛利涛
马晨原
张钢
冯海斌
郭小勤
王哲
NIU Litao;MA Chenyuan;ZHANG Gang;FENG Haibin;GUO Xiaoqin;WANG Zhe(Thermal Power Research Institute of Xi′an, Xi′an 710032, China;Huaneng Haikou Power Plant, Haikou 571923, China)
出处
《电工技术》
2019年第17期133-135,共3页
Electric Engineering
关键词
极性校验
光纤差动保护
母差保护
电流互感器
短路试验
polarity check
optical fiber differential protection
bus differential protection
current transformer
short circuit test
