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　　5月28日，國內(nei)首個“內(nei)橋”型接線雙回路(lu)供電(dian)(dian)(dian)(dian)的110千(qian)伏移(yi)動(dong)(dong)變(bian)電(dian)(dian)(dian)(dian)站在浙江杭州110千(qian)伏五(wu)福變(bian)正式(shi)投運，成功應(ying)(ying)用于市(shi)區變(bian)電(dian)(dian)(dian)(dian)站改(gai)造升級工程。這座由五(wu)個白色箱(xiang)子組成的移(yi)動(dong)(dong)變(bian)電(dian)(dian)(dian)(dian)站，創(chuang)新采用雙回路(lu)供電(dian)(dian)(dian)(dian)和插(cha)拔式(shi)電(dian)(dian)(dian)(dian)纜頭(tou)，提高了移(yi)動(dong)(dong)變(bian)電(dian)(dian)(dian)(dian)站的供電(dian)(dian)(dian)(dian)可靠性和應(ying)(ying)急處理響(xiang)應(ying)(ying)速度。

　　隨著杭州城區(qu)(qu)變(bian)(bian)電(dian)(dian)(dian)(dian)站(zhan)投運年份增(zeng)加(jia)，老舊設備隱患逐步顯現，面臨(lin)的(de)(de)改(gai)(gai)造壓(ya)力(li)(li)與日(ri)俱增(zeng)。由于城區(qu)(qu)負(fu)荷(he)相對(dui)(dui)集中，負(fu)載率超(chao)過(guo)80%的(de)(de)變(bian)(bian)電(dian)(dian)(dian)(dian)站(zhan)較(jiao)多(duo)，依托現有電(dian)(dian)(dian)(dian)網(wang)轉移(yi)負(fu)荷(he)難度較(jiao)大，即使(shi)部分變(bian)(bian)電(dian)(dian)(dian)(dian)站(zhan)可依托配網(wang)轉移(yi)負(fu)荷(he)，改(gai)(gai)造期間配網(wang)也將(jiang)承(cheng)受很大的(de)(de)運行壓(ya)力(li)(li)。改(gai)(gai)造期間非正(zheng)常供(gong)電(dian)(dian)(dian)(dian)方式(shi)歷時(shi)較(jiao)長，若發生設備或(huo)(huo)線(xian)路(lu)故障將(jiang)導致整站(zhan)全停(ting)。而目(mu)前的(de)(de)移(yi)動(dong)變(bian)(bian)電(dian)(dian)(dian)(dian)站(zhan)主要應用于應急搶修，因此普遍采用“線(xian)變(bian)(bian)組”型(xing)，只有單(dan)回路(lu)供(gong)電(dian)(dian)(dian)(dian)。在110千伏進線(xian)發生故障或(huo)(huo)遭遇外力(li)(li)破壞時(shi)，“線(xian)變(bian)(bian)組”型(xing)移(yi)動(dong)變(bian)(bian)電(dian)(dian)(dian)(dian)站(zhan)會失電(dian)(dian)(dian)(dian)，無(wu)法(fa)滿足變(bian)(bian)電(dian)(dian)(dian)(dian)站(zhan)改(gai)(gai)造升級對(dui)(dui)供(gong)電(dian)(dian)(dian)(dian)可靠性的(de)(de)要求。對(dui)(dui)此，杭州供(gong)電(dian)(dian)(dian)(dian)公司研(yan)發出(chu)110千伏“內(nei)橋”型(xing)移(yi)動(dong)式(shi)變(bian)(bian)電(dian)(dian)(dian)(dian)站(zhan)，一路(lu)電(dian)(dian)(dian)(dian)源如果(guo)失電(dian)(dian)(dian)(dian)，另一路(lu)電(dian)(dian)(dian)(dian)源立刻替補(bu)供(gong)電(dian)(dian)(dian)(dian)，大大提升了供(gong)電(dian)(dian)(dian)(dian)可靠性。

　　這(zhe)座110千(qian)伏移(yi)動變(bian)電(dian)站由(you)車載式主變(bian)、車載式GIS、車載式10千(qian)伏箱(xiang)(xiang)(xiang)式柜、車載式綜(zong)自箱(xiang)(xiang)(xiang)、移(yi)動式電(dian)源箱(xiang)(xiang)(xiang)五大單元組成。每(mei)個單元由(you)平板車和集裝(zhuang)箱(xiang)(xiang)(xiang)拼接而成，箱(xiang)(xiang)(xiang)內配置消(xiao)防(fang)、安防(fang)、照明、通信等設施。投(tou)運后，可(ke)解決局部地區負荷突發性增(zeng)長、變(bian)電(dian)站主變(bian)過載問題，也可(ke)解決電(dian)網改(gai)造過程(cheng)中停(ting)電(dian)改(gai)造、負荷轉移(yi)問題，還(huan)能提升(sheng)電(dian)網應急搶修供電(dian)和防(fang)震減(jian)災的能力。

　　值得一提(ti)(ti)的(de)是，由于(yu)移動(dong)變電(dian)(dian)(dian)站常(chang)用(yong)于(yu)應急搶修，而原(yuan)有(you)的(de)電(dian)(dian)(dian)纜頭接線方式往往需要耗(hao)費大量的(de)時間，杭州供電(dian)(dian)(dian)公(gong)司在設計中特別(bie)采用(yong)一次(ci)電(dian)(dian)(dian)纜插(cha)拔頭連接、二(er)次(ci)電(dian)(dian)(dian)纜預插(cha)拔式接口連接技術，可短時完成安(an)裝(zhuang)，提(ti)(ti)高安(an)裝(zhuang)調試(shi)的(de)便捷(jie)性，大大提(ti)(ti)升電(dian)(dian)(dian)網(wang)的(de)響應速度和(he)應急處置(zhi)能力。