成都箱式變壓站及其結構組成：

一、箱式變(bian)壓站(zhan)

箱式變(bian)(bian)電站是(shi)將高低(di)壓一次(ci)設備、變(bian)(bian)壓器、二(er)次(ci)設備在工廠(chang)內集(ji)成在一個雙層、密(mi)封(feng)、防(fang)腐、可(ke)移動的戶外箱體內。

箱(xiang)式(shi)(shi)變(bian)(bian)(bian)電(dian)(dian)站(zhan)，又(you)叫預裝式(shi)(shi)變(bian)(bian)(bian)電(dian)(dian)所或預裝式(shi)(shi)變(bian)(bian)(bian)電(dian)(dian)站(zhan)。是一(yi)種(zhong)高壓(ya)開關設備、配(pei)電(dian)(dian)變(bian)(bian)(bian)壓(ya)器和低壓(ya)配(pei)電(dian)(dian)設備，按一(yi)定接(jie)線(xian)方案排成一(yi)體的(de)工(gong)廠(chang)預制戶(hu)內、戶(hu)外緊湊式(shi)(shi)配(pei)電(dian)(dian)設備，即將(jiang)變(bian)(bian)(bian)壓(ya)器降壓(ya)、低壓(ya)配(pei)電(dian)(dian)等功能有機地組合在(zai)一(yi)起(qi)，裝置在(zai)一(yi)個(ge)防(fang)潮、防(fang)銹(xiu)、防(fang)塵、防(fang)鼠、防(fang)火、防(fang)盜、隔(ge)熱、全封(feng)閉、可移動(dong)的(de)鋼結(jie)構箱(xiang)，特別適用(yong)于城網建(jian)設與改造，是繼土建(jian)變(bian)(bian)(bian)電(dian)(dian)站(zhan)之(zhi)后興起(qi)的(de)一(yi)種(zhong)簇新(xin)的(de)變(bian)(bian)(bian)電(dian)(dian)站(zhan)。箱(xiang)式(shi)(shi)變(bian)(bian)(bian)電(dian)(dian)站(zhan)適用(yong)于礦山、工(gong)廠(chang)企業、油(you)氣田和風力發電(dian)(dian)站(zhan)，它替代(dai)了原有的(de)土建(jian)配(pei)電(dian)(dian)房(fang)、配(pei)電(dian)(dian)站(zhan)，成為新(xin)型(xing)的(de)成套(tao)變(bian)(bian)(bian)配(pei)電(dian)(dian)設備。

二、結構(gou)組成

箱(xiang)式變電(dian)站(zhan)的總體結構首要分(fen)為高(gao)壓(ya)開(kai)關設備(bei)(bei)、變壓(ya)器及低壓(ya)配(pei)電(dian)設備(bei)(bei)三大部分(fen)。

根(gen)據系統需(xu)求(qiu)，高壓(ya)開關可(ke)選用(yong)六氟化(hua)硫或真空斷路(lu)器、環網開關、負荷開關加熔斷器。

還可在高壓(ya)側加裝計(ji)量設備(bei)。低壓(ya)側一(yi)般裝置有總開(kai)關(guan)及分(fen)路(lu)饋線開(kai)關(guan)，也(ye)有的(de)只裝置饋線開(kai)關(guan)．向低壓(ya)終端用(yong)戶直接饋電。還可裝補(bu)償(chang)電容器(qi)(qi)、計(ji)量設備(bei)等。配(pei)電變壓(ya)器(qi)(qi)一(yi)般選用(yong)油浸式(shi)(shi)或干式(shi)(shi)變壓(ya)器(qi)(qi)。

歐式箱式變電(dian)(dian)站的高(gao)壓(ya)室(shi)一(yi)般是由高(gao)壓(ya)負(fu)荷(he)開關(guan)、高(gao)壓(ya)熔(rong)斷器(qi)和避(bi)雷器(qi)等(deng)(deng)組成的，能(neng)夠進(jin)行停送電(dian)(dian)操(cao)作(zuo)而且(qie)有過負(fu)荷(he)和短路保護。低壓(ya)室(shi)由低壓(ya)空氣開關(guan)、電(dian)(dian)流互感器(qi)、電(dian)(dian)流表、電(dian)(dian)壓(ya)表等(deng)(deng)組成的。變壓(ya)器(qi)一(yi)般選用 S9 或干式的等(deng)(deng)。

箱體有(you)兩種構成方式，即(ji)“目”字形(xing)安(an)(an)置(zhi)和“品”字形(xing)安(an)(an)置(zhi)。“目”字形(xing)安(an)(an)置(zhi)的高低(di)壓室較寬(kuan)，便(bian)于完成環網或(huo)雙(shuang)電(dian)源接線(xian)的環網供電(dian)方案。

美式(shi)(shi)箱(xiang)(xiang)式(shi)(shi)組合變壓(ya)器(qi)，其結構分(fen)為(wei)(wei)前后(hou)兩部分(fen)，前部為(wei)(wei)接線柜，接線柜內包含高(gao)低壓(ya)端子、高(gao)壓(ya)負(fu)荷(he)開關、刺進(jin)(jin)式(shi)(shi)熔(rong)斷器(qi)、高(gao)壓(ya)分(fen)接開關操作手柄、油(you)位(wei)表、油(you)溫計等；后(hou)部是油(you)箱(xiang)(xiang)體及散熱片，變壓(ya)器(qi)繞組、鐵心(xin)、高(gao)壓(ya)負(fu)荷(he)開關、刺進(jin)(jin)式(shi)(shi)熔(rong)斷器(qi)都在油(you)箱(xiang)(xiang)體內。箱(xiang)(xiang)體選用全(quan)密封(feng)結構。一體化箱(xiang)(xiang)式(shi)(shi)變電站為(wei)(wei).近國內廠家研制，使用還不廣泛，為(wei)(wei)雙層結構，高(gao)、低壓(ya)室置于變壓(ya)器(qi)室上面

歐(ou)(ou)式(shi)(shi)(shi)、美式(shi)(shi)(shi)和(he)一體(ti)化(hua)式(shi)(shi)(shi)箱(xiang)式(shi)(shi)(shi)變(bian)(bian)電(dian)站(zhan)(zhan)(zhan)各有優(you)缺點，歐(ou)(ou)式(shi)(shi)(shi)箱(xiang)式(shi)(shi)(shi)變(bian)(bian)電(dian)站(zhan)(zhan)(zhan)的體(ti)積較(jiao)大，高低壓(ya)開關和(he)變(bian)(bian)壓(ya)器都設于一個大殼體(ti)內，散熱條件差(cha)，需(xu)裝機(ji)械排(pai)風設備。美式(shi)(shi)(shi)箱(xiang)式(shi)(shi)(shi)變(bian)(bian)電(dian)站(zhan)(zhan)(zhan)因為變(bian)(bian)壓(ya)器冷卻片直接對外(wai)散熱，散熱條件相對較(jiao)好(hao)，但其造型較(jiao)歐(ou)(ou)式(shi)(shi)(shi)差(cha)，其外(wai)觀難與住宅小區等(deng)綠化(hua)環境合作(zuo)。一體(ti)化(hua)箱(xiang)式(shi)(shi)(shi)變(bian)(bian)電(dian)站(zhan)(zhan)(zhan)占地(di)更少，優(you)、缺點與美式(shi)(shi)(shi)箱(xiang)式(shi)(shi)(shi)變(bian)(bian)電(dian)站(zhan)(zhan)(zhan)相似。另(ling)外(wai)，美式(shi)(shi)(shi)、一體(ti)化(hua)式(shi)(shi)(shi)箱(xiang)式(shi)(shi)(shi)變(bian)(bian)電(dian)站(zhan)(zhan)(zhan)現國內只(zhi)能制作(zuo)630kVA容量以下的，歐(ou)(ou)式(shi)(shi)(shi)箱(xiang)式(shi)(shi)(shi)變(bian)(bian)電(dian)站(zhan)(zhan)(zhan)卻可(ke)達1250kVA。