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07 2023 07
輸變電工程施工為什么需要管理
雖(sui)然(ran)在(zai)輸變(bian)電工(gong)程建(jian)設項(xiang)目管理方面有(you)(you)多年(nian)的(de)經驗,但與國際大型電力(li)集團(tuan)相比,仍有(you)(you)較(jiao)大差距,主要表現為: ??一是管理團(tuan)隊(dui)專業化(hua)程度(du)不高;目前,雖(sui)然(ran)電力(li)建(jian)設項(xiang)目管理已經進行了一些(xie)開拓性的(de)探索,比如成(cheng)立專業的(de)工(gong)程管理團(tuan)隊(dui),實行項(xiang)目責任(ren)制(zhi),但工(gong)程管理的(de)主要模(mo)(mo)式仍然(ran)遵(zun)循(xun)行政管理模(mo)(mo)式,對于(yu)輸變(bian)電工(gong)程項(xiang)目的(de)管理理念仍然(ran)有(you)(you)很多未(wei)完成(cheng)的(de)實施項(xiang)目責任(ren)制(zhi)。根據行政管理模(mo)(mo)式,項(xiang)目管理團(tuan)隊(dui)由不同生產(chan)單位(wei)的(de)人員(yuan)組(zu)成(cheng),其成(cheng)員(yuan)來(lai)自不同生產(chan)單位(wei)的(de)項(xiang)目。雖(sui)然(ran)技(ji)術和(he)管理水平較(jiao)高,但與基(ji)礎項(xiang)目管理相比,缺乏(fa)應有(you)(you)的(de)專業知識、技(ji)能和(he)技(ji)能。
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30 2023 06
電力施工中變壓器故障檢測技術
(1)在線(xian)(xian)監(jian)控(kong)技術 ??在線(xian)(xian)監(jian)測(ce)技術主要采用振(zhen)(zhen)動(dong)分(fen)析(xi)法和(he)局部(bu)(bu)放(fang)電檢測(ce)法。一種(zhong)(zhong)是(shi)振(zhen)(zhen)動(dong)分(fen)析(xi)法。這種(zhong)(zhong)分(fen)析(xi)方(fang)法是(shi)指(zhi)變壓(ya)器運(yun)行(xing)時(shi),需(xu)要監(jian)測(ce)變壓(ya)器振(zhen)(zhen)動(dong)信號(hao)的(de)(de)強度,分(fen)析(xi)總結這種(zhong)(zhong)監(jian)測(ce)結果的(de)(de)原(yuan)因(yin),然后實時(shi)檢測(ce)變壓(ya)器的(de)(de)運(yun)行(xing)狀態,有利于及(ji)時(shi)發現故障,在小(xiao)故障導致(zhi)大故障之前解(jie)決。二(er)是(shi)局部(bu)(bu)放(fang)電檢測(ce)法。這種(zhong)(zhong)檢測(ce)方(fang)法是(shi)指(zhi)變壓(ya)器在運(yun)行(xing)過程中機械內(nei)部(bu)(bu)出現故障,從而導致(zhi)局部(bu)(bu)放(fang)電現象,從而影響放(fang)電的(de)(de)水平和(he)穩(wen)定性。
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23 2023 06
電力工程安裝中變壓器的材料
鑒(jian)于變(bian)(bian)壓器(qi)在電(dian)(dian)力工程安(an)(an)(an)裝中的(de)調控作(zuo)(zuo)(zuo)用,技(ji)術人員必須選擇合適的(de)變(bian)(bian)壓器(qi)來完(wan)成安(an)(an)(an)裝操作(zuo)(zuo)(zuo),以發揮(hui)正(zheng)常作(zuo)(zuo)(zuo)用。纏(chan)繞材(cai)(cai)料(liao)(liao)是(shi)變(bian)(bian)壓器(qi)安(an)(an)(an)裝中應注(zhu)意(yi)的(de)首要(yao)問(wen)題,不同(tong)材(cai)(cai)料(liao)(liao)的(de)設(she)備(bei)起著(zhu)不同(tong)的(de)作(zuo)(zuo)(zuo)用。對于纏(chan)繞變(bian)(bian)壓器(qi),由于設(she)備(bei)結構特(te)殊(shu),采用漆(qi)包(bao)(bao)(bao)線(xian)、紗包(bao)(bao)(bao)線(xian)、絲包(bao)(bao)(bao)線(xian)、紙(zhi)包(bao)(bao)(bao)線(xian)等(deng)材(cai)(cai)料(liao)(liao)進行安(an)(an)(an)裝,可以發揮(hui)良(liang)好的(de)導電(dian)(dian)性(xing)(xing)和(he)導熱性(xing)(xing),優越的(de)耐腐蝕性(xing)(xing)也(ye)增強了電(dian)(dian)路的(de)穩定(ding)性(xing)(xing)。從現有的(de)變(bian)(bian)壓器(qi)產(chan)品(pin)來看(kan),纏(chan)繞材(cai)(cai)料(liao)(liao)的(de)安(an)(an)(an)裝一(yi)般包(bao)(bao)(bao)括:鐵芯材(cai)(cai)料(liao)(liao)、絕緣(yuan)材(cai)(cai)料(liao)(liao)
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16 2023 06
電力工程施工時低壓電工證和高壓電工證的區別
低壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)證(zheng)(zheng)和(he)(he)高壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)證(zheng)(zheng)在電(dian)(dian)(dian)(dian)力工(gong)(gong)(gong)(gong)程施工(gong)(gong)(gong)(gong)中的(de)區別 ??低壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)證(zheng)(zheng)和(he)(he)高壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)證(zheng)(zheng)有什么區別?其實(shi)兩者沒(mei)有區別。都是(shi)應急管(guan)理(li)局頒發的(de)特種作業許可(ke)證(zheng)(zheng),但適(shi)用(yong)人群不同(tong)(ABC可(ke)以駕駛的(de)車(che)輛類型和(he)(he)駕照一樣)。低壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)證(zheng)(zheng)自(zi)然適(shi)用(yong)于低壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong),同(tong)樣的(de)高壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)證(zheng)(zheng)適(shi)用(yong)于高壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)。我們只需要知道如(ru)何區分(fen)(fen)高壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)和(he)(he)低壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)(gong)。區分(fen)(fen)的(de)方(fang)法是(shi)看(kan)作業時(shi)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)。具體劃分(fen)(fen)如(ru)下(xia):
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09 2023 06
電力工程施工中電力設備接地的作用
電(dian)力(li)工程施工中的(de)接地線(xian)是生命的(de)安全線(xian),用(yong)(yong)于保(bao)證(zheng)自動(dong)開(kai)關或(huo)漏(lou)電(dian)保(bao)護器在用(yong)(yong)電(dian)器漏(lou)電(dian)時跳閘切斷電(dian)源,避免操作人(ren)員觸電(dian)的(de)危(wei)險事(shi)故。由于接地線(xian)正常使用(yong)(yong)時沒有電(dian)流通過,所(suo)以選擇的(de)線(xian)徑相(xiang)對較小。
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02 2023 06
電力工程安裝中變壓器安裝操作注意事項
在(zai)安(an)(an)(an)(an)裝(zhuang)(zhuang)變壓(ya)(ya)器之(zhi)前,電(dian)(dian)力(li)工(gong)程應(ying)該(gai)進行一個小(xiao)的(de)(de)安(an)(an)(an)(an)全架設,即在(zai)安(an)(an)(an)(an)裝(zhuang)(zhuang)變壓(ya)(ya)器之(zhi)前,應(ying)該(gai)通(tong)過(guo)開關暫(zan)時關閉一個范(fan)圍內的(de)(de)線(xian)路,為操(cao)作人員提(ti)供不(bu)通(tong)電(dian)(dian)的(de)(de)安(an)(an)(an)(an)全條(tiao)件,這是關鍵。如果連續(xu)通(tong)電(dian)(dian),就不(bu)能安(an)(an)(an)(an)裝(zhuang)(zhuang)。變壓(ya)(ya)器的(de)(de)使用和(he)安(an)(an)(an)(an)裝(zhuang)(zhuang)是關鍵環節。如果安(an)(an)(an)(an)裝(zhuang)(zhuang)不(bu)當,自然會影響你(ni)的(de)(de)用電(dian)(dian)量(liang),甚至影響整個地區(qu)的(de)(de)市民用電(dian)(dian)量(liang)。因(yin)此,在(zai)安(an)(an)(an)(an)裝(zhuang)(zhuang)變壓(ya)(ya)器時,應(ying)邀請電(dian)(dian)工(gong)操(cao)作,避免(mian)不(bu)知道怎么做的(de)(de)人隨意開始。