概述：

　　ZW20-12型室(shi)內(nei)柱上(shang)各類高(gao)壓(ya)(ya)低壓(ya)(ya)真空(kong)軟(ruan)(ruan)件(jian)系(xi)(xi)統(tong)軟(ruan)(ruan)件(jian)性(xing)(xing)(xing)(xing)空(kong)氣有(you)效(xiao)(xiao)率掌(zhang)控(kong)(kong)開關為特殊(shu)電(dian)阻值12kV、三相(xiang)四線制交流(liu)溝通50Hz的室(shi)內(nei)各類高(gao)壓(ya)(ya)低壓(ya)(ya)有(you)效(xiao)(xiao)率掌(zhang)控(kong)(kong)開關物(wu)(wu)品。其主要(yao)應用(yong)在開斷、關合(he)電(dian)能軟(ruan)(ruan)件(jian)系(xi)(xi)統(tong)軟(ruan)(ruan)件(jian)性(xing)(xing)(xing)(xing)的負荷電(dian)壓(ya)(ya)、過(guo)載防護電(dian)壓(ya)(ya)及(ji)漏電(dian)電(dian)壓(ya)(ya)。適(shi)應用(yong)在變變電(dian)廠、工礦(kuang)區工廠及(ji)城(cheng)鄉建設變電(dian)力作防護和(he)(he)有(you)效(xiao)(xiao)率掌(zhang)控(kong)(kong)，有(you)點適(shi)應用(yong)在操作使用(yong)經常的活動場地(di)和(he)(he)城(cheng)網自動化變電(dian)力絡。本物(wu)(wu)品與有(you)效(xiao)(xiao)率掌(zhang)控(kong)(kong)器(qi)一體化，能夠(gou)滿足變電(dian)自動化軟(ruan)(ruan)件(jian)系(xi)(xi)統(tong)軟(ruan)(ruan)件(jian)性(xing)(xing)(xing)(xing)規定(ding)(ding)，并能穩定(ding)(ding)靠普而有(you)效(xiao)(xiao)率地(di)進(jin)行一般的相(xiang)同(tong)器(qi)功效(xiao)(xiao)。它用(yong)于(yu)成熟完(wan)善的箱(xiang)式密封蓋(gai)性(xing)(xing)(xing)(xing)設備構(gou)造(zao)，里面(mian)的充以SF6氣休，兼(jian)具積極的密封蓋(gai)性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能方面(mian)，使之未受間接周圍(wei)環境(jing)后果，是(shi)一個種免維修保養(yang)物(wu)(wu)品。其板彈簧操主觀因素構(gou)用(yong)于(yu)直動小鏈主齒輪變速箱(xiang)和(he)(he)三級脫扣(kou)軟(ruan)(ruan)件(jian)系(xi)(xi)統(tong)軟(ruan)(ruan)件(jian)性(xing)(xing)(xing)(xing)，的動作穩定(ding)(ding)靠普性(xing)(xing)(xing)(xing)好，是(shi)柱上(shang)空(kong)氣有(you)效(xiao)(xiao)率掌(zhang)控(kong)(kong)開關的上(shang)品。

正常使用條件：

◆海(hai)撥相對高度不突破3000m；

◆旁邊(bian)氣高溫(wen)底線(xian)不已經(jing)不低于(yu)40℃，底線(xian)不已經(jing)不低于(yu)-40℃，日氣溫(wen)差異25℃；

◆風(feng)速(su)不高(gao)出700Pa；

◆污穢分(fen)類(lei)：IV級；

◆覆(fu)冰(bing)它的厚度100mm；

◆安裝(zhuang)使用(yong)活(huo)動場地：無易(yi)(yi)燃易(yi)(yi)爆、爆炸案兇險、耐(nai)耐(nai)腐蝕耐(nai)腐蝕的(de)活(huo)動場地；

◆地震來臨列度不已(yi)經超(chao)過8度。

型號含義：

主要技術參數：

外形及安裝尺寸：