文章來(lai)源：中國西電(dian)集團公司 發(fa)布時間：2018-10-11
近日，中(zhong)國西電(dian)為川藏鐵(tie)路(lu)拉(la)薩至林(lin)芝段供電(dian)工程(cheng)雅(ya)中(zhong)（郎(lang)縣(xian)）、沃卡（拉(la)薩）500千伏變電(dian)站新建工程(cheng)制造的500千伏250兆伏安單相自(zi)耦變壓器一次性(xing)通過全部試驗，各項性(xing)能指標達到或優于國家標準(zhun)和技術協議(yi)的要求(qiu)。
藏(zang)(zang)(zang)(zang)中(zhong)聯(lian)(lian)網工(gong)(gong)(gong)程(cheng)(cheng)由西(xi)藏(zang)(zang)(zang)(zang)藏(zang)(zang)(zang)(zang)中(zhong)和昌(chang)都(dou)電(dian)(dian)網聯(lian)(lian)網工(gong)(gong)(gong)程(cheng)(cheng)、川藏(zang)(zang)(zang)(zang)鐵(tie)路拉薩至林芝段(duan)供電(dian)(dian)工(gong)(gong)(gong)程(cheng)(cheng)組(zu)成，起于西(xi)藏(zang)(zang)(zang)(zang)昌(chang)都(dou)市(shi)(shi)芒康(kang)縣，止(zhi)于山南市(shi)(shi)桑日(ri)縣，跨越(yue)西(xi)藏(zang)(zang)(zang)(zang)三地(di)市(shi)(shi)十(shi)區(qu)縣，計劃新(xin)建(jian)、擴(kuo)建(jian)110千(qian)伏(fu)及(ji)以(yi)上變(bian)電(dian)(dian)站16座(zuo)，新(xin)建(jian)110千(qian)伏(fu)及(ji)以(yi)上線路2738公(gong)里(li)。該(gai)工(gong)(gong)(gong)程(cheng)(cheng)是(shi)繼2011年青藏(zang)(zang)(zang)(zang)、2014年川藏(zang)(zang)(zang)(zang)兩大(da)輸電(dian)(dian)聯(lian)(lian)網工(gong)(gong)(gong)程(cheng)(cheng)投(tou)運后(hou)，第三條(tiao)(tiao)建(jian)設(she)的(de)超(chao)高(gao)(gao)壓500千(qian)伏(fu)電(dian)(dian)力天(tian)路，也是(shi)目前世界上海(hai)拔(ba)最(zui)(zui)高(gao)(gao)、跨度最(zui)(zui)大(da)、自然(ran)(ran)條(tiao)(tiao)件最(zui)(zui)復雜(za)的(de)世界級輸電(dian)(dian)聯(lian)(lian)網建(jian)設(she)工(gong)(gong)(gong)程(cheng)(cheng)。該(gai)工(gong)(gong)(gong)程(cheng)(cheng)是(shi)實現西(xi)藏(zang)(zang)(zang)(zang)“十(shi)三五”跨越(yue)式(shi)發展、關系富民(min)興藏(zang)(zang)(zang)(zang)大(da)局的(de)戰略工(gong)(gong)(gong)程(cheng)(cheng)和民(min)心工(gong)(gong)(gong)程(cheng)(cheng)，是(shi)突破生命禁(jin)區(qu)、挑戰生存(cun)極限、超(chao)高(gao)(gao)海(hai)拔(ba)、超(chao)大(da)高(gao)(gao)差、自然(ran)(ran)條(tiao)(tiao)件最(zui)(zui)復雜(za)、建(jian)設(she)難(nan)度空前的(de)“超(chao)級”輸變(bian)電(dian)(dian)工(gong)(gong)(gong)程(cheng)(cheng)。該(gai)工(gong)(gong)(gong)程(cheng)(cheng)建(jian)設(she)對構建(jian)堅強西(xi)藏(zang)(zang)(zang)(zang)電(dian)(dian)網網架，促進清潔能源開發外送，增(zeng)進民(min)族團結(jie)具有重大(da)意義。
在藏(zang)中聯網項目中，中國西(xi)電(dian)(dian)共承擔(dan)了12臺(tai)500千(qian)伏單相自耦變壓(ya)器(qi)的制造任務。該(gai)項目產(chan)品均用于(yu)海(hai)拔高(gao)度3500米(mi)以上、極端氣溫-45℃，具有(you)容量大(da)、高(gao)電(dian)(dian)壓(ya)、高(gao)海(hai)拔、晝夜溫差大(da)、耐嚴(yan)寒、運輸困難等特點。此(ci)次制造成(cheng)功的500千(qian)伏變壓(ya)器(qi)，既是(shi)這批產(chan)品的首臺(tai)產(chan)品，也是(shi)該(gai)司(si)為西(xi)藏(zang)地區提(ti)供的首臺(tai)500千(qian)伏高(gao)電(dian)(dian)壓(ya)等級的變壓(ya)器(qi)。