文章來(lai)源：國家電網(wang)公司 發布時間：2009-08-26
8月22日，蘭州東(dong)至銀(yin)(yin)川(chuan)東(dong)750千(qian)(qian)伏(fu)輸變(bian)電工程(cheng)竣工儀式在寧(ning)夏電力公司銀(yin)(yin)川(chuan)東(dong)750千(qian)(qian)伏(fu)變(bian)電站舉(ju)行。該(gai)工程(cheng)是我國首批750千(qian)(qian)伏(fu)電網(wang)建設項目。該(gai)工程(cheng)的(de)峻工，標(biao)志著(zhu)西北750千(qian)(qian)伏(fu)主干網(wang)架已從(cong)示范建設階段轉向全面建設階段，同時標(biao)志著(zhu)通過銀(yin)(yin)川(chuan)東(dong)750千(qian)(qian)伏(fu)變(bian)電站匯集的(de)黃河上游(you)水電、甘肅千(qian)(qian)萬千(qian)(qian)瓦級風電和寧(ning)東(dong)火電“打捆”外送輸電通道(dao)已經鋪就。
寧(ning)夏回族自(zi)治(zhi)區(qu)政府(fu)主席(xi)王正偉在(zai)竣工(gong)(gong)儀式上發表講話。他說，蘭州(zhou)東(dong)至(zhi)銀(yin)川(chuan)東(dong)750千伏(fu)輸(shu)變電工(gong)(gong)程作為(wei)寧(ning)東(dong)能源(yuan)化工(gong)(gong)基地規(gui)劃建設的重點(dian)項目，這項工(gong)(gong)程的竣工(gong)(gong)投產，標志著寧(ning)夏“西電東(dong)送(song)”工(gong)(gong)程邁出(chu)實(shi)質性步(bu)伐，為(wei)自(zi)治(zhi)區(qu)實(shi)現大(da)規(gui)模電力外送(song)奠定了堅實(shi)的基礎，將對(dui)自(zi)治(zhi)區(qu)進(jin)一步(bu)發揮能源(yuan)優勢，促進(jin)寧(ning)夏經濟社(she)會又好又快發展產生(sheng)積極影響。講話中，王正偉贊揚了西北(bei)電網(wang)有限公(gong)司和寧(ning)夏電力公(gong)司在(zai)工(gong)(gong)程建設中作出(chu)的突出(chu)貢(gong)獻。
蘭州東(dong)(dong)至(zhi)銀川東(dong)(dong)750千伏(fu)(fu)輸變(bian)(bian)(bian)電(dian)(dian)工(gong)程新(xin)建(jian)了銀川東(dong)(dong)750千伏(fu)(fu)變(bian)(bian)(bian)電(dian)(dian)站，架(jia)設(she)蘭州東(dong)(dong)至(zhi)銀川東(dong)(dong)750千伏(fu)(fu)輸電(dian)(dian)線路394千米。其中(zhong)位(wei)于寧東(dong)(dong)能源化(hua)工(gong)基地的(de)銀川東(dong)(dong)750千伏(fu)(fu)變(bian)(bian)(bian)電(dian)(dian)站是目前(qian)在建(jian)同電(dian)(dian)壓等級中(zhong)規模最大的(de)變(bian)(bian)(bian)電(dian)(dian)站，是西(xi)北(bei)電(dian)(dian)網(wang)水(shui)火風電(dian)(dian)“打(da)捆”外送(song)輸電(dian)(dian)通道中(zhong)的(de)重(zhong)要(yao)樞紐。這座變(bian)(bian)(bian)電(dian)(dian)站的(de)建(jian)成，使寧夏擁有(you)了當前(qian)世界商(shang)業(ye)運行最高電(dian)(dian)壓等級電(dian)(dian)網(wang)，達(da)到國際先進(jin)水(shui)平(ping)，為自治區(qu)寧東(dong)(dong)能源化(hua)工(gong)基地建(jian)設(she)打(da)下堅(jian)實基礎(chu)；有(you)力促(cu)進(jin)“西(xi)電(dian)(dian)東(dong)(dong)送(song)”北(bei)通道——銀川東(dong)(dong)至(zhi)山東(dong)(dong)±660千伏(fu)(fu)直流輸電(dian)(dian)工(gong)程建(jian)設(she)，將對(dui)自治區(qu)資源優勢轉化(hua)為經濟優勢產生深(shen)遠(yuan)影響。
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銀川(chuan)東750千伏(fu)變電(dian)站(zhan)(zhan)開(kai)工建設于(yu)2006年12月12日。2008年8月4日，該變電(dian)站(zhan)(zhan)在順利完成設備(bei)調試及試運行(xing)(xing)后，正式投入運行(xing)(xing)。該變電(dian)站(zhan)(zhan)占地面積365畝(mu)，單臺主變壓器容量、建設規(gui)模均為國內(nei)同(tong)級(ji)變電(dian)站(zhan)(zhan)之最。
在約(yue)19個月的(de)建設(she)(she)時間里，銀川(chuan)東750千(qian)(qian)(qian)伏(fu)(fu)變電(dian)站(zhan)創(chuang)下多個國(guo)內(nei)第(di)一(yi)(yi)，實現多項技術(shu)突破，電(dian)氣一(yi)(yi)、二次(ci)設(she)(she)備(bei)國(guo)產化(hua)率達100%。該變電(dian)站(zhan)是國(guo)內(nei)首(shou)(shou)個750千(qian)(qian)(qian)伏(fu)(fu)電(dian)壓(ya)等級敞開式布置的(de)交直流合建的(de)變電(dian)站(zhan)。750千(qian)(qian)(qian)伏(fu)(fu)變壓(ya)器、高壓(ya)電(dian)抗器首(shou)(shou)次(ci)采用(yong)同電(dian)壓(ya)等級國(guo)內(nei)容量(liang)最大(da)的(de)210萬千(qian)(qian)(qian)伏(fu)(fu)安和(he)300兆瓦(wa)設(she)(she)備(bei)。750千(qian)(qian)(qian)伏(fu)(fu)罐式斷路器為(wei)世界首(shou)(shou)臺，750千(qian)(qian)(qian)伏(fu)(fu)隔(ge)離開關、330千(qian)(qian)(qian)伏(fu)(fu)支柱斷路器及66千(qian)(qian)(qian)伏(fu)(fu)電(dian)抗器均為(wei)國(guo)內(nei)第(di)一(yi)(yi)次(ci)采用(yong)。這些(xie)國(guo)內(nei)首(shou)(shou)次(ci)研制、開發(fa)(fa)、制造的(de)設(she)(she)備(bei)的(de)運用(yong)，推動我國(guo)超(chao)高壓(ya)大(da)型電(dian)氣設(she)(she)備(bei)從技術(shu)引進(jin)為(wei)主(zhu)走向自主(zhu)創(chuang)新(xin)為(wei)主(zhu)的(de)新(xin)階段，為(wei)國(guo)家特高壓(ya)設(she)(she)備(bei)的(de)研發(fa)(fa)和(he)制造打下了堅實基(ji)礎。