摘要
在天荒坪抽水蓄能电厂应用奥地利ELIN公司DRS数字式保护"跳闸回路监视"功能,通过与国内外常用跳闸回路监视原理的比较,以500kV开关及发电机开关的跳闸回路监视为例,详细分析了其在不同工况时的工作原理。发现在跳闸接点长时间导通、机组停机、拖动机工况时存在缺陷,并结合现场应用要求对原回路提出了改进措施,并对改造后回路的工作原理进行了分析,通过改造解决了存在的问题,取得了较好的效果。
Austria ELIN company DRS digital protection Tripping circuit surveillance is applied in the Tianhuangping pumped storage power station, by comparing it with that of tripping of the circuit supervision principle commonly used at home and abroad, the paper took 500 kV switch and the generator switch tripping circuit supervision as an example, and gave a detailed analysis of the different conditions in the working principle and the existing shortcomings, combined with the scene requested by the application of the improved measures to solve the existing problems, and achieved good results.
出处
《电网与清洁能源》
2008年第10期44-47,共4页
Power System and Clean Energy
关键词
跳闸回路
抽水蓄能电站
断线监视
trip circuit
pumped storage power station
disconnection supervision
