摘要
大屯发电厂35/110KV的升压站采用了GIS设计,无论是发变组出口开关还是TA处都无法拆开,也就无法安装短路铜排,常规的电气开机试验方法存在的问题越来越明显。本文提出了改进的短路点设置新方法,此方法既录制了发变组短路特性,又检验了差动保护的方向。并且调整了电气启动试验的顺序,以节约机组启动试验时间,既节约了机组的燃油时间,又减少了电网的受进电量,带来了良好的经济效益。
Datun power plant 35/110KV boost station has used the GIS design, either the generator-transformer unit outlet switch or TA cannot open, can not install short copper, conventional test methods for electrical starting problems become more and more obvious. This paper proposes to improve the short circuit point setting method, this method generator-transformer short-circuit characteristic, and test the direction of the differential protection. And adjusted the electrical starting test sequence, in order to save unit starting test time, which saves unit of fuel, and reduce the power of electricity, brought good economic benefits.
出处
《能源与节能》
2012年第4期21-23,共3页
Energy and Energy Conservation
关键词
发变组保护
短路试验
短路点
回路试验
transformer protection
short-circuit test
short-circuit point
circuit test
