文章(zhang)來(lai)源(yuan)：國家電(dian)網公司 發布(bu)時間：2010-06-04
5月26日12時18分，國家電網(wang)公司(si)±800千(qian)(qian)伏向家壩—上海特高壓直流(liu)輸(shu)電示范工程奉賢(xian)換(huan)流(liu)站35千(qian)(qian)伏站用電系統帶負荷測試(shi)順利完成，一次啟動成功(gong)。
奉賢換(huan)流(liu)站(zhan)(zhan)(zhan)(zhan)站(zhan)(zhan)(zhan)(zhan)用(yong)(yong)電(dian)系統(tong)采用(yong)(yong)3回(hui)獨立電(dian)源(yuan)(yuan)供(gong)電(dian)，2回(hui)工作站(zhan)(zhan)(zhan)(zhan)用(yong)(yong)電(dian)源(yuan)(yuan)采用(yong)(yong)515/10千(qian)(qian)(qian)(qian)伏(fu)(fu)降壓變(bian)，分別(bie)從(cong)500千(qian)(qian)(qian)(qian)伏(fu)(fu)配電(dian)裝(zhuang)置母線和交流(liu)濾波器母線引(yin)接，另一回(hui)備用(yong)(yong)電(dian)源(yuan)(yuan)從(cong)站(zhan)(zhan)(zhan)(zhan)外南匯220千(qian)(qian)(qian)(qian)伏(fu)(fu)變(bian)電(dian)站(zhan)(zhan)(zhan)(zhan)35千(qian)(qian)(qian)(qian)伏(fu)(fu)母線引(yin)接。本次(ci)投運的是35千(qian)(qian)(qian)(qian)伏(fu)(fu)備用(yong)(yong)電(dian)源(yuan)(yuan)，安裝(zhuang)35/10千(qian)(qian)(qian)(qian)伏(fu)(fu)高壓站(zhan)(zhan)(zhan)(zhan)用(yong)(yong)變(bian)1臺(tai)，容量(liang)1萬千(qian)(qian)(qian)(qian)伏(fu)(fu)安；10臺(tai)10/0.4千(qian)(qian)(qian)(qian)伏(fu)(fu)站(zhan)(zhan)(zhan)(zhan)用(yong)(yong)變(bian)，單臺(tai)容量(liang)為2000千(qian)(qian)(qian)(qian)伏(fu)(fu)安，分別(bie)安裝(zhuang)在站(zhan)(zhan)(zhan)(zhan)內(nei)5個0.4千(qian)(qian)(qian)(qian)伏(fu)(fu)室內(nei)，35千(qian)(qian)(qian)(qian)伏(fu)(fu)、10千(qian)(qian)(qian)(qian)伏(fu)(fu)、0.4千(qian)(qian)(qian)(qian)伏(fu)(fu)配電(dian)裝(zhuang)置均采用(yong)(yong)開(kai)關柜型式。
35千伏站(zhan)(zhan)用(yong)電(dian)系統(tong)是(shi)換(huan)流站(zhan)(zhan)安(an)(an)(an)裝(zhuang)的關鍵工序，是(shi)換(huan)流變和換(huan)流閥(fa)(fa)安(an)(an)(an)裝(zhuang)的前(qian)提條(tiao)件。本工程第一批4臺換(huan)流變將于7月初(chu)運(yun)抵換(huan)流站(zhan)(zhan)現場安(an)(an)(an)裝(zhuang)，6月底雙(shuang)低端閥(fa)(fa)廳、極1高端閥(fa)(fa)廳將具備交安(an)(an)(an)條(tiao)件。屆時(shi)三個閥(fa)(fa)廳的通(tong)風系統(tong)將開通(tong)，用(yong)電(dian)負(fu)載大增，目前(qian)的施工臨時(shi)電(dian)源不能(neng)滿(man)足要求，站(zhan)(zhan)用(yong)電(dian)系統(tong)的投運(yun)顯(xian)得尤為重要。
本次35千伏(fu)站(zhan)用電系統的投運(yun)，是(shi)站(zhan)內的第(di)1次設備正式(shi)帶電，標志著(zhu)奉賢換(huan)(huan)流(liu)站(zhan)完成了(le)又(you)一(yi)個重要的里程碑進度節點目標，為后續的換(huan)(huan)流(liu)變(bian)安裝提供了(le)可靠的電源保證，也為12月(yue)15日極1系統投運(yun)奠定了(le)基礎。