文章來源：國家電(dian)網公(gong)司 發布時間：2009-08-26
8月22日，蘭州東(dong)(dong)(dong)至銀(yin)川東(dong)(dong)(dong)750千(qian)(qian)(qian)(qian)伏(fu)(fu)輸變電(dian)工程竣(jun)工儀式在寧夏電(dian)力公司(si)銀(yin)川東(dong)(dong)(dong)750千(qian)(qian)(qian)(qian)伏(fu)(fu)變電(dian)站舉(ju)行。該工程是我(wo)國首批750千(qian)(qian)(qian)(qian)伏(fu)(fu)電(dian)網(wang)建設項目。該工程的峻工，標志著西(xi)北750千(qian)(qian)(qian)(qian)伏(fu)(fu)主干網(wang)架已從示范(fan)建設階(jie)段轉向全面建設階(jie)段，同時標志著通過(guo)銀(yin)川東(dong)(dong)(dong)750千(qian)(qian)(qian)(qian)伏(fu)(fu)變電(dian)站匯集的黃河上游水電(dian)、甘肅千(qian)(qian)(qian)(qian)萬千(qian)(qian)(qian)(qian)瓦(wa)級(ji)風電(dian)和寧東(dong)(dong)(dong)火電(dian)“打捆”外送輸電(dian)通道已經鋪就(jiu)。
寧(ning)夏回族(zu)自(zi)治區政府(fu)主席(xi)王正偉在(zai)竣工儀(yi)式上發表(biao)講話(hua)(hua)。他說，蘭(lan)州(zhou)東至銀川東750千(qian)伏輸(shu)變電工程(cheng)作(zuo)為寧(ning)東能源化工基地規劃建設的重(zhong)點項目，這項工程(cheng)的竣工投產(chan)，標志著寧(ning)夏“西電東送(song)”工程(cheng)邁(mai)出(chu)實質性(xing)步伐(fa)，為自(zi)治區實現大規模電力(li)外送(song)奠定了(le)堅實的基礎，將對自(zi)治區進一步發揮能源優勢，促進寧(ning)夏經(jing)濟社會(hui)又好(hao)又快發展(zhan)產(chan)生積極影響。講話(hua)(hua)中，王正偉贊揚(yang)了(le)西北電網有限公(gong)司和(he)寧(ning)夏電力(li)公(gong)司在(zai)工程(cheng)建設中作(zuo)出(chu)的突出(chu)貢獻(xian)。
蘭州東(dong)(dong)至銀川東(dong)(dong)750千(qian)伏(fu)(fu)輸(shu)變(bian)(bian)電(dian)(dian)工(gong)(gong)(gong)程新建了銀川東(dong)(dong)750千(qian)伏(fu)(fu)變(bian)(bian)電(dian)(dian)站(zhan)，架設蘭州東(dong)(dong)至銀川東(dong)(dong)750千(qian)伏(fu)(fu)輸(shu)電(dian)(dian)線路394千(qian)米(mi)。其中(zhong)位于寧東(dong)(dong)能源化(hua)(hua)(hua)工(gong)(gong)(gong)基(ji)地(di)的(de)銀川東(dong)(dong)750千(qian)伏(fu)(fu)變(bian)(bian)電(dian)(dian)站(zhan)是目前在(zai)建同電(dian)(dian)壓(ya)等級中(zhong)規模最(zui)大的(de)變(bian)(bian)電(dian)(dian)站(zhan)，是西(xi)北(bei)電(dian)(dian)網水(shui)火風電(dian)(dian)“打捆”外送輸(shu)電(dian)(dian)通道中(zhong)的(de)重(zhong)要樞紐。這座變(bian)(bian)電(dian)(dian)站(zhan)的(de)建成，使寧夏擁有了當(dang)前世界商業運行最(zui)高(gao)電(dian)(dian)壓(ya)等級電(dian)(dian)網，達到(dao)國際先進(jin)水(shui)平(ping)，為自(zi)治區(qu)寧東(dong)(dong)能源化(hua)(hua)(hua)工(gong)(gong)(gong)基(ji)地(di)建設打下堅實基(ji)礎；有力促進(jin)“西(xi)電(dian)(dian)東(dong)(dong)送”北(bei)通道——銀川東(dong)(dong)至山東(dong)(dong)±660千(qian)伏(fu)(fu)直流輸(shu)電(dian)(dian)工(gong)(gong)(gong)程建設，將對自(zi)治區(qu)資(zi)源優(you)(you)勢轉化(hua)(hua)(hua)為經(jing)濟優(you)(you)勢產生深遠影響。
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銀川東750千伏變電(dian)站(zhan)開工(gong)建(jian)設于2006年12月(yue)12日(ri)。2008年8月(yue)4日(ri)，該(gai)變電(dian)站(zhan)在順利完成設備調試(shi)及試(shi)運(yun)行后，正式(shi)投入運(yun)行。該(gai)變電(dian)站(zhan)占地面積365畝，單臺主變壓器容量(liang)、建(jian)設規(gui)模均為(wei)國內同級變電(dian)站(zhan)之最。
在約(yue)19個(ge)(ge)月(yue)的(de)(de)建(jian)設時(shi)間里(li)，銀川東750千(qian)(qian)伏(fu)(fu)(fu)(fu)變電(dian)站創(chuang)下(xia)多個(ge)(ge)國內(nei)(nei)(nei)第(di)一(yi)，實(shi)現多項(xiang)技術突(tu)破，電(dian)氣一(yi)、二次(ci)設備國產化率達100%。該變電(dian)站是國內(nei)(nei)(nei)首個(ge)(ge)750千(qian)(qian)伏(fu)(fu)(fu)(fu)電(dian)壓(ya)(ya)(ya)等級(ji)敞開(kai)(kai)(kai)式布置(zhi)的(de)(de)交(jiao)直流合建(jian)的(de)(de)變電(dian)站。750千(qian)(qian)伏(fu)(fu)(fu)(fu)變壓(ya)(ya)(ya)器、高壓(ya)(ya)(ya)電(dian)抗器首次(ci)采用(yong)同電(dian)壓(ya)(ya)(ya)等級(ji)國內(nei)(nei)(nei)容(rong)量(liang)最大的(de)(de)210萬千(qian)(qian)伏(fu)(fu)(fu)(fu)安和300兆瓦設備。750千(qian)(qian)伏(fu)(fu)(fu)(fu)罐式斷路器為(wei)世界首臺，750千(qian)(qian)伏(fu)(fu)(fu)(fu)隔離開(kai)(kai)(kai)關、330千(qian)(qian)伏(fu)(fu)(fu)(fu)支柱(zhu)斷路器及66千(qian)(qian)伏(fu)(fu)(fu)(fu)電(dian)抗器均為(wei)國內(nei)(nei)(nei)第(di)一(yi)次(ci)采用(yong)。這些國內(nei)(nei)(nei)首次(ci)研制、開(kai)(kai)(kai)發(fa)、制造(zao)的(de)(de)設備的(de)(de)運用(yong)，推(tui)動(dong)我國超高壓(ya)(ya)(ya)大型電(dian)氣設備從技術引(yin)進為(wei)主走(zou)向自主創(chuang)新為(wei)主的(de)(de)新階(jie)段，為(wei)國家(jia)特高壓(ya)(ya)(ya)設備的(de)(de)研發(fa)和制造(zao)打下(xia)了堅實(shi)基礎(chu)。