文章來源(yuan)：國家電(dian)網公司 發布時間：2016-06-11
6月(yue)5日(ri)15時25分，國網(wang)甘肅電力重點工(gong)程——750千(qian)伏河西(xi)變電站1號主變系統順(shun)利啟動，進入試運行階段。
750千伏河(he)西(xi)變(bian)電站1號主(zhu)變(bian)擴建工(gong)程竣工(gong)后，河(he)西(xi)變(bian)主(zhu)變(bian)容(rong)量(liang)將增加(jia)至420萬(wan)千伏安(an)，將為(wei)河(he)西(xi)地區經濟(ji)發展提(ti)(ti)供更為(wei)可靠的(de)電源(yuan)(yuan)支撐，并進一步優化主(zhu)網架構，為(wei)清潔能源(yuan)(yuan)送出(chu)提(ti)(ti)供堅強(qiang)支撐。
750千(qian)(qian)(qian)伏(fu)河(he)(he)西變(bian)(bian)(bian)電(dian)站于2010年投運，是連(lian)接西北電(dian)網、新(xin)疆電(dian)網及河(he)(he)泉千(qian)(qian)(qian)萬千(qian)(qian)(qian)瓦(wa)風電(dian)送出的重要電(dian)網樞紐。該站1號主(zhu)(zhu)(zhu)變(bian)(bian)(bian)擴建(jian)工(gong)程(cheng)(cheng)新(xin)增加了3×70萬千(qian)(qian)(qian)伏(fu)安主(zhu)(zhu)(zhu)變(bian)(bian)(bian)1組，同(tong)時擴建(jian)了主(zhu)(zhu)(zhu)變(bian)(bian)(bian)三側(ce)間隔，新(xin)增加了66千(qian)(qian)(qian)伏(fu)側(ce)電(dian)容器(qi)(qi)5組、電(dian)抗器(qi)(qi)5組。在主(zhu)(zhu)(zhu)變(bian)(bian)(bian)投運前期，按照《750千(qian)(qian)(qian)伏(fu)河(he)(he)西變(bian)(bian)(bian)1號主(zhu)(zhu)(zhu)變(bian)(bian)(bian)擴建(jian)工(gong)程(cheng)(cheng)驗(yan)(yan)收細則》，該公司(si)(si)檢修人(ren)員(yuan)配合甘肅送變(bian)(bian)(bian)電(dian)工(gong)程(cheng)(cheng)公司(si)(si)施(shi)工(gong)人(ren)員(yuan)對主(zhu)(zhu)(zhu)變(bian)(bian)(bian)本(ben)體及三側(ce)通(tong)流(liu)通(tong)壓(ya)試(shi)驗(yan)(yan)、保護裝置(zhi)回路(lu)驗(yan)(yan)證(zheng)等驗(yan)(yan)收工(gong)作中發現(xian)的缺陷、安全隱患及時進行(xing)了整改。投運當天(tian)，檢修人(ren)員(yuan)細致地進行(xing)了主(zhu)(zhu)(zhu)變(bian)(bian)(bian)三側(ce)電(dian)壓(ya)互感器(qi)(qi)核相、三側(ce)開關電(dian)流(liu)互感器(qi)(qi)二次回路(lu)相量(liang)測試(shi)等工(gong)作，確保了1號主(zhu)(zhu)(zhu)變(bian)(bian)(bian)的順利投運。
為保證1號主(zhu)變投運(yun)(yun)工(gong)作有序(xu)推進，國網甘肅(su)公司克(ke)服任務重、人(ren)員少、時間緊的困難，合(he)理部署、攻堅克(ke)難，及早按照啟動投運(yun)(yun)方(fang)案，認(ren)真(zhen)細致填寫操(cao)作票(piao)(piao)，嚴(yan)格(ge)辦理工(gong)作票(piao)(piao)。在啟動前(qian)，運(yun)(yun)維(wei)(wei)人(ren)員與網調(diao)、省監控對點8000多點次；投運(yun)(yun)期間，各(ge)(ge)級管理人(ren)員坐鎮指(zhi)揮，監督(du)現場“兩票(piao)(piao)三制”執(zhi)行(xing)，督(du)促各(ge)(ge)項安全措施、各(ge)(ge)類事故(gu)預案的執(zhi)行(xing)情況，確保投運(yun)(yun)工(gong)作全過程萬無一失(shi)。本次啟動中運(yun)(yun)維(wei)(wei)人(ren)員執(zhi)行(xing)調(diao)度(du)令156項，執(zhi)行(xing)操(cao)作7000余項。
750千伏河(he)(he)西變(bian)(bian)(bian)電(dian)站1號(hao)主(zhu)變(bian)(bian)(bian)投運后，將(jiang)有(you)效(xiao)緩解(jie)河(he)(he)西變(bian)(bian)(bian)單臺主(zhu)變(bian)(bian)(bian)運行存在(zai)的(de)電(dian)網風險，有(you)效(xiao)提高新能源外送的(de)安全系數。