文章來源：國家電網公司 發(fa)布時間：2010-06-04
5月26日12時18分(fen)，國(guo)家電網(wang)公司±800千伏向(xiang)家壩—上海特高壓直(zhi)流(liu)輸(shu)電示(shi)范(fan)工程(cheng)奉賢換(huan)流(liu)站35千伏站用電系(xi)統帶(dai)負荷測試順利完成(cheng)，一次啟動成(cheng)功。
奉賢(xian)換流(liu)站(zhan)(zhan)站(zhan)(zhan)用(yong)(yong)(yong)電(dian)(dian)系統采(cai)(cai)(cai)用(yong)(yong)(yong)3回獨(du)立電(dian)(dian)源(yuan)供電(dian)(dian)，2回工(gong)作站(zhan)(zhan)用(yong)(yong)(yong)電(dian)(dian)源(yuan)采(cai)(cai)(cai)用(yong)(yong)(yong)515/10千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)降壓(ya)變，分(fen)別(bie)從(cong)500千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)配(pei)(pei)電(dian)(dian)裝置(zhi)(zhi)母(mu)線(xian)和交流(liu)濾波器母(mu)線(xian)引接(jie)，另(ling)一回備用(yong)(yong)(yong)電(dian)(dian)源(yuan)從(cong)站(zhan)(zhan)外南匯220千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)變電(dian)(dian)站(zhan)(zhan)35千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)母(mu)線(xian)引接(jie)。本次投運的是35千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)備用(yong)(yong)(yong)電(dian)(dian)源(yuan)，安(an)裝35/10千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)高壓(ya)站(zhan)(zhan)用(yong)(yong)(yong)變1臺(tai)，容量1萬千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)安(an)；10臺(tai)10/0.4千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)站(zhan)(zhan)用(yong)(yong)(yong)變，單臺(tai)容量為(wei)2000千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)安(an)，分(fen)別(bie)安(an)裝在站(zhan)(zhan)內5個0.4千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)室內，35千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)、10千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)、0.4千(qian)(qian)(qian)(qian)伏(fu)(fu)(fu)(fu)配(pei)(pei)電(dian)(dian)裝置(zhi)(zhi)均采(cai)(cai)(cai)用(yong)(yong)(yong)開關柜型式。
35千伏站(zhan)(zhan)(zhan)用(yong)(yong)電(dian)系(xi)(xi)統(tong)是(shi)換(huan)(huan)流(liu)站(zhan)(zhan)(zhan)安裝的(de)關鍵工序，是(shi)換(huan)(huan)流(liu)變(bian)和換(huan)(huan)流(liu)閥(fa)安裝的(de)前(qian)提條(tiao)件(jian)。本工程第一批4臺換(huan)(huan)流(liu)變(bian)將(jiang)于7月初運抵換(huan)(huan)流(liu)站(zhan)(zhan)(zhan)現場安裝，6月底雙低端閥(fa)廳、極1高端閥(fa)廳將(jiang)具備交安條(tiao)件(jian)。屆時三(san)個(ge)閥(fa)廳的(de)通(tong)風系(xi)(xi)統(tong)將(jiang)開(kai)通(tong)，用(yong)(yong)電(dian)負(fu)載(zai)大增，目前(qian)的(de)施工臨時電(dian)源不(bu)能(neng)滿足要(yao)求(qiu)，站(zhan)(zhan)(zhan)用(yong)(yong)電(dian)系(xi)(xi)統(tong)的(de)投運顯得尤為重要(yao)。
本次(ci)(ci)35千伏站用(yong)電(dian)(dian)系統的投運(yun)，是站內(nei)的第1次(ci)(ci)設備正式帶電(dian)(dian)，標志著奉(feng)賢換(huan)流站完(wan)成(cheng)了(le)又一個(ge)重要的里程碑進度節點目(mu)標，為后續的換(huan)流變安裝提供了(le)可(ke)靠的電(dian)(dian)源保證(zheng)，也為12月15日(ri)極1系統投運(yun)奠定(ding)了(le)基礎(chu)。