免费菠萝视频app下载

11月16日上午9時，由南(nan)方電(dian)網(wang)廣東公司投資建設的110千伏港珠澳大橋人工(gong)島輸變電(dian)工(gong)程竣工(gong)投產，為舉(ju)世矚目的“超級工(gong)程”港珠澳大橋提供了強勁的電(dian)力支撐。

“變電(dian)站順利投產，為后期調試爭取了時間，為港珠(zhu)澳(ao)大(da)橋(qiao)年底按時通車(che)創造了條件(jian)。”港珠(zhu)澳(ao)大(da)橋(qiao)管理(li)局交通工(gong)程部副(fu)部長孔雷軍表示。據悉，港珠(zhu)澳(ao)大(da)橋(qiao)110千伏(fu)人工(gong)島變電(dian)站從11月15日上午(wu)開(kai)始投產操作(zuo)，經過(guo)500多個操作(zuo)步驟，于16日9時完成全部變電(dian)設備充電(dian)，順利投產。

據了解，東(dong)接香(xiang)港(gang)(gang)、西(xi)(xi)連(lian)珠(zhu)海(hai)和(he)澳(ao)(ao)門的港(gang)(gang)珠(zhu)澳(ao)(ao)大(da)(da)(da)橋(qiao)(qiao)建(jian)設已(yi)經(jing)接近尾(wei)聲(sheng)。110千(qian)伏(fu)(fu)(fu)人(ren)工(gong)(gong)(gong)(gong)(gong)島(dao)輸變(bian)(bian)電(dian)工(gong)(gong)(gong)(gong)(gong)程是港(gang)(gang)珠(zhu)澳(ao)(ao)大(da)(da)(da)橋(qiao)(qiao)的配套電(dian)源工(gong)(gong)(gong)(gong)(gong)程，位(wei)于珠(zhu)澳(ao)(ao)口岸(an)人(ren)工(gong)(gong)(gong)(gong)(gong)島(dao)西(xi)(xi)北角的珠(zhu)海(hai)口岸(an)市(shi)政配套區，主要承(cheng)擔對人(ren)工(gong)(gong)(gong)(gong)(gong)島(dao)及港(gang)(gang)珠(zhu)澳(ao)(ao)大(da)(da)(da)橋(qiao)(qiao)本體工(gong)(gong)(gong)(gong)(gong)程的供電(dian)任務，同(tong)時為粵港(gang)(gang)澳(ao)(ao)三(san)地的綜合運輸體系和(he)高速公路網絡提供電(dian)力保證，助(zhu)力粵港(gang)(gang)澳(ao)(ao)大(da)(da)(da)灣區可持續發展。該(gai)變(bian)(bian)電(dian)站項(xiang)目于今(jin)年2月(yue)底開建(jian)，投產后珠(zhu)澳(ao)(ao)口岸(an)人(ren)工(gong)(gong)(gong)(gong)(gong)島(dao)上(shang)形成了220千(qian)伏(fu)(fu)(fu)吉大(da)(da)(da)變(bian)(bian)電(dian)站至(zhi)110千(qian)伏(fu)(fu)(fu)人(ren)工(gong)(gong)(gong)(gong)(gong)島(dao)變(bian)(bian)電(dian)站、220千(qian)伏(fu)(fu)(fu)拱北變(bian)(bian)電(dian)站至(zhi)110千(qian)伏(fu)(fu)(fu)大(da)(da)(da)橋(qiao)(qiao)專(zhuan)用變(bian)(bian)電(dian)站、以(yi)及110千(qian)伏(fu)(fu)(fu)人(ren)工(gong)(gong)(gong)(gong)(gong)島(dao)變(bian)(bian)電(dian)站至(zhi)110千(qian)伏(fu)(fu)(fu)大(da)(da)(da)橋(qiao)(qiao)專(zhuan)用站相連(lian)的一個閉(bi)環回(hui)路，與珠(zhu)海(hai)電(dian)網主網可靠(kao)連(lian)接。

　　

11月16日，港珠澳大橋110千伏人工島變電站投運，南方電網廣東珠海供電局工作人員正在進行巡查工作。周卓英 梁家豪 攝

廣東(dong)電(dian)(dian)網珠海供電(dian)(dian)局基建(jian)部(bu)項目經理劉穎介紹(shao)，新投(tou)產的110千伏人工島變(bian)電(dian)(dian)站與大(da)橋(qiao)專用變(bian)電(dian)(dian)站互為(wei)備用，為(wei)港珠澳大(da)橋(qiao)提供了可靠供電(dian)(dian)“雙保險”。

　　

港珠澳大橋110千伏人工島變電站從11月15日上午開始投產操作，于16日9時完成全部變電設備充電，順利投產。周卓英 梁家豪 攝

提高供(gong)(gong)(gong)電(dian)(dian)(dian)(dian)可靠(kao)性是該變電(dian)(dian)(dian)(dian)站的首(shou)要職責，也是廣(guang)東(dong)電(dian)(dian)(dian)(dian)網(wang)的一貫(guan)追求。在(zai)今年(nian)6月(yue)召開的全(quan)國年(nian)度電(dian)(dian)(dian)(dian)力(li)可靠(kao)性指標(biao)發布會上，南方(fang)電(dian)(dian)(dian)(dian)網(wang)廣(guang)東(dong)珠(zhu)海供(gong)(gong)(gong)電(dian)(dian)(dian)(dian)局平均停電(dian)(dian)(dian)(dian)時間(jian)僅(jin)1.87小時，供(gong)(gong)(gong)電(dian)(dian)(dian)(dian)可靠(kao)率位居(ju)全(quan)國第一。在(zai)110千(qian)伏人(ren)工(gong)島輸變電(dian)(dian)(dian)(dian)工(gong)程的建(jian)設中，廣(guang)東(dong)電(dian)(dian)(dian)(dian)網(wang)公(gong)司在(zai)設計、施工(gong)等方(fang)面采用先進理念與技術，包(bao)括(kuo)敷設10千(qian)伏線(xian)路網(wang)架、“MMJ”電(dian)(dian)(dian)(dian)纜(lan)頭熔接技術、網(wang)絡(luo)備自投方(fang)式等，通過科技創新為可靠(kao)供(gong)(gong)(gong)電(dian)(dian)(dian)(dian)提供(gong)(gong)(gong)多重(zhong)保障。

“鑒于人(ren)工島(dao)(dao)的(de)特(te)殊性和(he)(he)島(dao)(dao)上(shang)用電(dian)(dian)客戶的(de)極端重要性，人(ren)工島(dao)(dao)輸(shu)變電(dian)(dian)工程全部(bu)敷(fu)設10千(qian)伏線路網架，投資分界點延伸至島(dao)(dao)內(nei)具體用戶紅(hong)線范圍內(nei)。”據南方電(dian)(dian)網廣東珠(zhu)海供電(dian)(dian)局基(ji)建(jian)部(bu)項(xiang)目經理劉穎介(jie)紹(shao)，此(ci)舉可(ke)確保(bao)人(ren)工島(dao)(dao)10千(qian)伏線路網架在(zai)專(zhuan)業(ye)的(de)統一建(jian)設和(he)(he)維護下(xia)運作，為(wei)人(ren)工島(dao)(dao)的(de)開發建(jian)設和(he)(he)發展運營提供更有力的(de)供電(dian)(dian)保(bao)障。

另外(wai)，10千伏(fu)人工島(dao)(dao)開(kai)關站(zhan)具備4回路供電的(de)高可靠(kao)性，其進線(xian)分別來自于島(dao)(dao)外(wai)110千伏(fu)口岸變(bian)電站(zhan)和島(dao)(dao)上110千伏(fu)人工島(dao)(dao)變(bian)電站(zhan)各兩回電源，出線(xian)間隔來自于兩個變(bian)電站(zhan)不同母(mu)線(xian)。

該(gai)工(gong)(gong)程(cheng)施工(gong)(gong)便橋僅(jin)有(you)一條極為(wei)狹小(xiao)電(dian)纜(lan)(lan)溝，當(dang)初建設(she)難度可(ke)想而知。“在(zai)這么小(xiao)的(de)空間(jian)里，是無法(fa)布置常規電(dian)纜(lan)(lan)中(zhong)間(jian)接(jie)頭的(de)。”項(xiang)目經理劉穎(ying)介紹，廣東電(dian)網公司在(zai)電(dian)纜(lan)(lan)線路施工(gong)(gong)中(zhong)采用(yong)了(le)先進的(de)“MMJ”電(dian)纜(lan)(lan)頭模注熔接(jie)技術。該(gai)技術直接(jie)將兩段電(dian)纜(lan)(lan)熔接(jie)為(wei)一體(ti)，免(mian)除龐(pang)大(da)的(de)電(dian)纜(lan)(lan)接(jie)頭設(she)備的(de)介入，占用(yong)空間(jian)大(da)大(da)縮小(xiao)，成(cheng)功(gong)克服了(le)電(dian)纜(lan)(lan)溝空間(jian)受(shou)限(xian)的(de)問(wen)題。

　　

夜幕下的港珠澳大橋110千伏人工島變電站。 周卓英 梁家豪 攝

“通過供電(dian)專用(yong)通訊網絡，采(cai)用(yong)網絡備(bei)自投的方式，我(wo)們(men)解(jie)決了公用(yong)變電(dian)站(zhan)和專用(yong)變電(dian)站(zhan)110千伏備(bei)自投無(wu)法滿足線路(lu)N-1的問題，真正實現了供電(dian)雙保險(xian)。”劉穎告訴(su)記者，該(gai)變電(dian)站(zhan)將采(cai)用(yong)無(wu)人值(zhi)守(shou)模式。

網絡備(bei)自投(tou)技(ji)術，簡而言之就是(shi)兩條(tiao)(tiao)線路(lu)互為備(bei)用，當一(yi)條(tiao)(tiao)線路(lu)斷開(kai)后，還有另外(wai)一(yi)條(tiao)(tiao)線路(lu)來保障供電(dian)(dian)連續性，通過在備(bei)自投(tou)裝置(zhi)增(zeng)加通信(xin)接(jie)口設備(bei)，實現(xian)公用變(bian)(bian)(bian)電(dian)(dian)站(zhan)和專用變(bian)(bian)(bian)電(dian)(dian)站(zhan)兩側(ce)備(bei)自投(tou)裝置(zhi)信(xin)息共享(xiang)，使其動作邏(luo)輯滿足(zu)不同的(de)運行方式(shi)。該變(bian)(bian)(bian)電(dian)(dian)站(zhan)不僅用先進科(ke)技(ji)提升(sheng)內在性能(neng)素質，也具有“顏值”。與平時(shi)(shi)常見的(de)變(bian)(bian)(bian)電(dian)(dian)站(zhan)不同，該變(bian)(bian)(bian)電(dian)(dian)站(zhan)的(de)外(wai)立面設計(ji)為幕墻與鋁扣板相配合的(de)形(xing)式(shi)，寶藍色(se)線條(tiao)(tiao)與伶仃洋(yang)上的(de)港珠(zhu)澳大橋相呼(hu)應，極(ji)具現(xian)代感與時(shi)(shi)尚韻味，達到了與周邊環境和諧一(yi)致的(de)效果。