產品簡介：ZW20-12F 戶(hu)(hu)外(wai)高壓(ya)真空分界(jie)(jie)斷路器(qi)( 看(kan)門(men)狗開關(guan)) 為額定電壓(ya)12kV，三相交流50Hz 的戶(hu)(hu)外(wai)配(pei)電設備(bei)。當(dang)12kV 配(pei)電線(xian)路T 型(xing)接線(xian)的用(yong)戶(hu)(hu)內(nei)部發(fa)生故(gu)障(zhang)時，或雖然發(fa)生在用(yong)戶(hu)(hu)進線(xian)開關(guan)內(nei)側，但其(qi)保護(hu)(hu)動作時限(xian)與變(bian)電站出線(xian)開關(guan)保護(hu)(hu)不當(dang)時，會造(zao)成變(bian)電站出線(xian)開關(guan)保護(hu)(hu)分閘。如果故(gu)障(zhang)是長久性的，變(bian)電站重合不成功，則一個中壓(ya)用(yong)戶(hu)(hu)界(jie)(jie)內(nei)的事故(gu)將使整條配(pei)電干線(xian)停電。這種電網中常見的波及(ji)事故(gu)，將對(dui)社會造(zao)成重大損失(shi)。
概述
ZW20-12F 戶(hu)(hu)外(wai)高壓真空分界斷路器( 看門狗開關(guan)(guan)) 為額定電(dian)(dian)(dian)壓12kV，三相(xiang)交(jiao)流50Hz 的戶(hu)(hu)外(wai)配電(dian)(dian)(dian)設備。當12kV 配電(dian)(dian)(dian)線(xian)(xian)路T 型接(jie)線(xian)(xian)的用戶(hu)(hu)內部發生(sheng)故(gu)(gu)障時，或雖然發生(sheng)在(zai)用戶(hu)(hu)進線(xian)(xian)開關(guan)(guan)內側，但(dan)其(qi)保護(hu)動作時限(xian)與變電(dian)(dian)(dian)站出線(xian)(xian)開關(guan)(guan)保護(hu)不(bu)當時，會造成變電(dian)(dian)(dian)站出線(xian)(xian)開關(guan)(guan)保護(hu)分閘。如果(guo)故(gu)(gu)障是長久性(xing)的，變電(dian)(dian)(dian)站重(zhong)合不(bu)成功，則一個中壓用戶(hu)(hu)界內的事故(gu)(gu)將(jiang)使整(zheng)條配電(dian)(dian)(dian)干線(xian)(xian)停(ting)電(dian)(dian)(dian)。這種電(dian)(dian)(dian)網(wang)中常見(jian)的波及事故(gu)(gu)，將(jiang)對社(she)會造成重(zhong)大損失。
ZW20-12F 戶(hu)外高(gao)壓真空分界(jie)斷路器( 看門狗開(kai)關)，安裝于架空配電線路的(de)責任分界(jie)處則用(yong)戶(hu)進線的(de)前端，將會自動切除用(yong)戶(hu)內單相接(jie)地故(gu)障和相間短(duan)路故(gu)障，避免用(yong)戶(hu)界(jie)內故(gu)障波及輸電干線，保證(zheng)非(fei)故(gu)障用(yong)戶(hu)的(de)用(yong)電安全，提高(gao)用(yong)電可靠性。
產品型號及含義
主要技術參數
外形及安裝尺寸
