文章來源：國家電(dian)網公司(si) 發布(bu)時間：2011-03-18
3月10日，國家電(dian)網公司(si)在(zai)湖北武漢召開竣(jun)工(gong)驗收總結(jie)會(hui)，世界第(di)一條±500千伏雙回(hui)路(lu)(lu)直(zhi)流(liu)輸(shu)電(dian)線路(lu)(lu)——葛滬直(zhi)流(liu)綜合(he)改造（三滬Ⅱ回(hui)直(zhi)流(liu)）線路(lu)(lu)工(gong)程(cheng)正式通過(guo)竣(jun)工(gong)驗收，即將(jiang)投入運行。該工(gong)程(cheng)投運后，將(jiang)為上(shang)海(hai)(hai)增加180萬千瓦電(dian)力(li)，上(shang)海(hai)(hai)世博會(hui)保電(dian)工(gong)作由此再添“生力(li)軍(jun)”。
在竣工(gong)(gong)驗收總結會(hui)上，國家電(dian)網(wang)公司(si)有關(guan)領(ling)導指出，葛滬直流綜(zong)合(he)改造工(gong)(gong)程是公司(si)今年(nian)即將投(tou)產的(de)第一條跨區電(dian)網(wang)線路工(gong)(gong)程。該工(gong)(gong)程自2008年(nian)12月開工(gong)(gong)以來，沿(yan)線各有關(guan)省市公司(si)按(an)照跨區電(dian)網(wang)屬(shu)地(di)(di)化(hua)建設(she)管(guan)理的(de)要求，克(ke)服了工(gong)(gong)期緊、沿(yan)線地(di)(di)形復雜、交叉跨越多(duo)、拆遷改造和屬(shu)地(di)(di)協調工(gong)(gong)作量大等(deng)困難，提前一個多(duo)月完成工(gong)(gong)程建設(she)任(ren)務。
線(xian)路工(gong)程竣(jun)工(gong)驗收(shou)后(hou)，各(ge)有關設(she)計施(shi)工(gong)、建設(she)管(guan)理(li)、運行(xing)維護(hu)單位目前(qian)正(zheng)加強(qiang)通(tong)道(dao)清(qing)理(li)，完善輔(fu)助(zhu)設(she)施(shi)，為該工(gong)程4月1日正(zheng)式送(song)電做好充分準(zhun)備工(gong)作(zuo)。
2008年(nian)12月，為擴大三(san)峽和(he)四川水電(dian)(dian)(dian)(dian)送(song)出規(gui)模，增強華東(dong)與華中地區(qu)電(dian)(dian)(dian)(dian)網(wang)聯絡(luo)，提高華東(dong)和(he)上(shang)海(hai)(hai)電(dian)(dian)(dian)(dian)網(wang)抗風險(xian)能力(li)，國家電(dian)(dian)(dian)(dian)網(wang)公司啟(qi)動了±500千(qian)伏葛(ge)滬直流(liu)綜合改造工程。工程西起(qi)湖北省荊門換(huan)流(liu)站，東(dong)至(zhi)上(shang)海(hai)(hai)楓(feng)涇換(huan)流(liu)站，全長(chang)976千(qian)米(mi)，額(e)定(ding)輸送(song)功率300萬千(qian)瓦。該工程投產(chan)后，湖北至(zhi)上(shang)海(hai)(hai)的(de)500千(qian)伏輸電(dian)(dian)(dian)(dian)線路送(song)電(dian)(dian)(dian)(dian)能力(li)將由過(guo)去的(de)720萬千(qian)瓦增加到900萬千(qian)瓦，送(song)電(dian)(dian)(dian)(dian)能力(li)相當于上(shang)海(hai)(hai)用電(dian)(dian)(dian)(dian)負荷的(de)45%左右(you)。