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概述

ZW20-12F 戶外高(gao)壓真空分界(jie)斷(duan)路器(qi)( 看門狗開(kai)關) 為額定電(dian)(dian)壓12kV，三相(xiang)交(jiao)流(liu)50Hz 的(de)(de)戶外配(pei)電(dian)(dian)設(she)備。當(dang)12kV 配(pei)電(dian)(dian)線路T 型接線的(de)(de)用戶內(nei)部發生(sheng)故(gu)(gu)障(zhang)(zhang)時，或雖然(ran)發生(sheng)在用戶進(jin)線開(kai)關內(nei)側，但其保護動(dong)作時限(xian)與變電(dian)(dian)站(zhan)(zhan)出(chu)線開(kai)關保護不當(dang)時，會造成(cheng)變電(dian)(dian)站(zhan)(zhan)出(chu)線開(kai)關保護分閘(zha)。如果(guo)故(gu)(gu)障(zhang)(zhang)是長久(jiu)性的(de)(de)，變電(dian)(dian)站(zhan)(zhan)重(zhong)合不成(cheng)功，則一個中壓用戶界(jie)內(nei)的(de)(de)事故(gu)(gu)將使整條配(pei)電(dian)(dian)干線停(ting)電(dian)(dian)。這種電(dian)(dian)網中常見的(de)(de)波及事故(gu)(gu)，將對(dui)社會造成(cheng)重(zhong)大損失。

ZW20-12F 戶外(wai)高壓真(zhen)空分(fen)界斷路器( 看門狗開關)，安(an)裝于架空配電(dian)(dian)線路的責任分(fen)界處則(ze)用(yong)戶進線的前端，將會自(zi)動(dong)切除用(yong)戶內單相接地故(gu)障(zhang)和相間短路故(gu)障(zhang)，避免(mian)用(yong)戶界內故(gu)障(zhang)波及輸電(dian)(dian)干線，保(bao)證非故(gu)障(zhang)用(yong)戶的用(yong)電(dian)(dian)安(an)全，提高用(yong)電(dian)(dian)可靠(kao)性。

產品型號及含義

主要技術參數

外形及安裝尺寸