摘要
煤矿井下经常会发生越级跳闸,导致大面积停电。提出了一种基于分布式区域保护技术的防越级跳闸方案,当任何一级发生短路故障时,迅速闭锁上级,防止上级动作,避免了井下电网由于越级跳闸引起的大面积停电事故发生。
Over tripping accident often happens underground coal mine, which leads to blackouts. This paper proposed a kind of anti-override trip scheme of protection technology based on distributed area. When short-circuit fault occurred in any levels,superior level is closured rapidly to prevent the superior action, which can avoid large area blackout accident caused by over tripping in underground electric network.
出处
《能源与节能》
2015年第10期157-158,共2页
Energy and Energy Conservation
关键词
区域保护
越级跳闸
DSP
光纤网络
regional protection
over tripping
DSP
optical fiber network
