一、高壓開關柜和低壓開關柜的區別有哪些
開(kai)關(guan)柜(ju)是在電(dian)(dian)(dian)力系統進行發電(dian)(dian)(dian)、輸電(dian)(dian)(dian)、配(pei)電(dian)(dian)(dian)和(he)電(dian)(dian)(dian)能轉(zhuan)換(huan)的過程(cheng)中,進行開(kai)合、控制(zhi)和(he)保護用電(dian)(dian)(dian)設(she)備的電(dian)(dian)(dian)氣設(she)備,它按照電(dian)(dian)(dian)壓(ya)(ya)(ya)不同可分為高壓(ya)(ya)(ya)開(kai)關(guan)柜(ju)、中壓(ya)(ya)(ya)開(kai)關(guan)柜(ju)和(he)低(di)壓(ya)(ya)(ya)開(kai)關(guan)柜(ju),其中高壓(ya)(ya)(ya)柜(ju)和(he)低(di)壓(ya)(ya)(ya)柜(ju)比較常用,這兩種(zhong)開(kai)關(guan)柜(ju)的區別主要有:
1、電壓不同
高(gao)壓(ya)開關(guan)柜(ju)用(yong)于(yu)高(gao)電(dian)壓(ya)的(de)電(dian)力系(xi)統(tong),一(yi)般(ban)10kV以上的(de)電(dian)氣系(xi)統(tong)用(yong)高(gao)壓(ya)開關(guan)柜(ju);低壓(ya)開關(guan)柜(ju)則主要用(yong)于(yu)1kV以下(xia)的(de)電(dian)力系(xi)統(tong)。
2、性能不同
高(gao)壓開關柜用于高(gao)壓電力(li),能夠(gou)承(cheng)(cheng)受(shou)高(gao)電壓和大電流(liu),同時具有很強的滅弧(hu)能力(li);低壓開關柜則無法承(cheng)(cheng)受(shou)高(gao)電壓和大電流(liu),并且也只能夠(gou)采取(qu)滅弧(hu)的方(fang)式(shi)。
3、使用范圍不同
高壓(ya)開(kai)關柜(ju)主要(yao)(yao)用于供(gong)電(dian)(dian)局或(huo)者是變電(dian)(dian)所,這些(xie)(xie)地方需要(yao)(yao)使用到的電(dian)(dian)壓(ya)和電(dian)(dian)流都是比較(jiao)高的;低壓(ya)開(kai)關柜(ju)則(ze)主要(yao)(yao)適合一些(xie)(xie)高層建筑或(huo)者是小型(xing)企業使用,需要(yao)(yao)使用到的電(dian)(dian)壓(ya)和電(dian)(dian)流相對(dui)來說會稍微低一些(xie)(xie)。
4、型號不同
高壓(ya)開(kai)關柜常(chang)(chang)見的型(xing)號有(you)KYN系列,XGN系列,HXGN系列,GG1A ,JYNGBC等(deng)(deng)等(deng)(deng);低壓(ya)開(kai)關柜常(chang)(chang)見的型(xing)號有(you)GGD,MNS,GCS,GCK,XL,PZ,JXF等(deng)(deng)等(deng)(deng)。
5、柜內電器元件不同
高壓開(kai)(kai)關(guan)柜內的(de)電器元件是(shi)真空斷路(lu)器、負荷開(kai)(kai)關(guan)、隔(ge)離開(kai)(kai)關(guan)、傳感器等(deng)(deng);低壓開(kai)(kai)關(guan)柜一般(ban)配萬能式斷路(lu)器、塑殼斷路(lu)器、刀開(kai)(kai)關(guan)、C45等(deng)(deng)。
二、如何分辨高低壓開關柜
高(gao)(gao)壓開關柜(ju)和低壓開關柜(ju)都是電(dian)(dian)(dian)力系統的(de)重要(yao)(yao)(yao)電(dian)(dian)(dian)力設備(bei)。高(gao)(gao)壓開關柜(ju)主要(yao)(yao)(yao)用(yong)于(yu)發電(dian)(dian)(dian)、輸(shu)電(dian)(dian)(dian)、配(pei)電(dian)(dian)(dian)、電(dian)(dian)(dian)能轉換和消耗中起(qi)通(tong)斷、控制或(huo)保護,低壓開關柜(ju)主要(yao)(yao)(yao)用(yong)于(yu)輸(shu)電(dian)(dian)(dian)、配(pei)電(dian)(dian)(dian),都不可或(huo)缺,那我們(men)如何分辨一臺開關柜(ju)是高(gao)(gao)壓開關柜(ju)還是低壓開關柜(ju)呢?
1、看開關柜的銘牌
正(zheng)規高低壓開(kai)關(guan)柜(ju)出(chu)廠時都會(hui)有銘牌,一(yi)般安(an)裝在開(kai)關(guan)柜(ju)的左上方或(huo)右上方。銘牌上會(hui)清(qing)楚地(di)標明(ming)開(kai)關(guan)柜(ju)的名稱、型號、額(e)定(ding)電流、額(e)定(ding)電壓等內容(rong)。
2、看電壓
根據國家電(dian)(dian)網規(gui)定,1000V及以(yi)上的電(dian)(dian)氣(qi)設備(bei)(bei)稱為(wei)高壓(ya)(ya)電(dian)(dian)氣(qi)設備(bei)(bei),1000V以(yi)下的電(dian)(dian)氣(qi)設備(bei)(bei)為(wei)低壓(ya)(ya)電(dian)(dian)氣(qi)設備(bei)(bei)。高壓(ya)(ya)開(kai)關(guan)柜(ju)以(yi)KV為(wei)單(dan)(dan)位, 低壓(ya)(ya)開(kai)關(guan)柜(ju)以(yi)V為(wei)單(dan)(dan)位。
3、看是否有“五防”聯鎖裝置
高壓開關柜需要有“五防”聯鎖裝置,低壓開關柜則沒有強制要(yao)求,一般沒有。
4、看柜體
高壓開(kai)關(guan)柜(ju)因為安全性(xing)的考慮,柜(ju)體外殼一般(ban)比低壓開(kai)關(guan)柜(ju)寬和厚;另(ling)外,高壓開(kai)關(guan)柜(ju)里帶接地開(kai)關(guan),低壓開(kai)關(guan)柜(ju)的則不帶。
5、看內部配件
開關柜內的元(yuan)器(qi)件都是需(xu)要符合電壓等(deng)級的,如斷路器(qi),開關等(deng)元(yuan)器(qi)件高壓與低壓還是有很(hen)大區別(bie)的。