快速開(kai)關接地(di)保護裝(zhuang)置應用場景
配電接地故障防控
當中性(xing)點非有效接(jie)(jie)地(di)(di)系(xi)統(tong)發生單相(xiang)(xiang)接(jie)(jie)地(di)(di)故(gu)(gu)(gu)障時(shi)，HDKB快速開關(guan)接(jie)(jie)地(di)(di)保護裝置內VFC分相(xiang)(xiang)斷路(lu)器快速合閘故(gu)(gu)(gu)障相(xiang)(xiang)，15ms內完成接(jie)(jie)地(di)(di)保護動(dong)作，將故(gu)(gu)(gu)障相(xiang)(xiang)直接(jie)(jie)接(jie)(jie)地(di)(di)并選(xuan)出故(gu)(gu)(gu)障線(xian)路(lu)。維持系(xi)統(tong)線(xian)電壓的水平(ping)，避(bi)免接(jie)(jie)地(di)(di)過電壓導致(zhi)的電纜放炮(pao)，設(she)備絕緣損(sun)壞(huai)以及避(bi)雷器爆炸事(shi)故(gu)(gu)(gu)。
為公(gong)共配(pei)電(dian)網(wang)及企業內(nei)部配(pei)電(dian)網(wang)因單相接地(di)故(gu)(gu)障造(zao)成(cheng)的(de)事故(gu)(gu)擴大提供防(fang)控保障，提升供電(dian)可靠性(xing)，降低單相接地(di)故(gu)(gu)障造(zao)成(cheng)的(de)損失。
企業內部配電網
冶金、鋼(gang)鐵、化工、造(zao)紙(zhi)、水(shui)泥、煤(mei)化工等高耗能(neng)企業內(nei)部總降(jiang)變(bian)電(dian)(dian)站或各廠區變(bian)電(dian)(dian)站10kV～35kV母線(xian)段，中性點非有效接地系統，出線(xian)采用(yong)電(dian)(dian)纜出線(xian)或架空線(xian)路與電(dian)(dian)纜出線(xian)混合(he)電(dian)(dian)網(wang)。
公共(gong)配電網
區域型變電(dian)站內10kV～35kV母線段，中性(xing)點非有效(xiao)接地系統。
