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07 2023 07
輸變電工程施工為什么需要管理
雖然在輸(shu)變電工(gong)(gong)(gong)程(cheng)建設(she)項(xiang)目管(guan)(guan)(guan)理(li)(li)(li)(li)(li)方面有(you)多年的(de)經驗(yan),但與國際大型(xing)電力集(ji)團相比,仍(reng)(reng)有(you)較大差距,主(zhu)要表現為: ??一是管(guan)(guan)(guan)理(li)(li)(li)(li)(li)團隊專(zhuan)業(ye)化程(cheng)度(du)不高;目前,雖然電力建設(she)項(xiang)目管(guan)(guan)(guan)理(li)(li)(li)(li)(li)已經進行(xing)了一些開(kai)拓性的(de)探索,比如(ru)成(cheng)立(li)專(zhuan)業(ye)的(de)工(gong)(gong)(gong)程(cheng)管(guan)(guan)(guan)理(li)(li)(li)(li)(li)團隊,實(shi)行(xing)項(xiang)目責(ze)(ze)任制,但工(gong)(gong)(gong)程(cheng)管(guan)(guan)(guan)理(li)(li)(li)(li)(li)的(de)主(zhu)要模(mo)式仍(reng)(reng)然遵循行(xing)政(zheng)管(guan)(guan)(guan)理(li)(li)(li)(li)(li)模(mo)式,對于輸(shu)變電工(gong)(gong)(gong)程(cheng)項(xiang)目的(de)管(guan)(guan)(guan)理(li)(li)(li)(li)(li)理(li)(li)(li)(li)(li)念仍(reng)(reng)然有(you)很(hen)多未完(wan)成(cheng)的(de)實(shi)施(shi)項(xiang)目責(ze)(ze)任制。根據行(xing)政(zheng)管(guan)(guan)(guan)理(li)(li)(li)(li)(li)模(mo)式,項(xiang)目管(guan)(guan)(guan)理(li)(li)(li)(li)(li)團隊由不同(tong)生(sheng)產單位的(de)人員組成(cheng),其成(cheng)員來(lai)自不同(tong)生(sheng)產單位的(de)項(xiang)目。雖然技術和(he)管(guan)(guan)(guan)理(li)(li)(li)(li)(li)水平較高,但與基礎項(xiang)目管(guan)(guan)(guan)理(li)(li)(li)(li)(li)相比,缺乏(fa)應(ying)有(you)的(de)專(zhuan)業(ye)知(zhi)識(shi)、技能和(he)技能。
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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)監(jian)控(kong)技(ji)術 ??在線(xian)監(jian)測(ce)技(ji)術主(zhu)要(yao)采用振動分(fen)析法(fa)和(he)局(ju)部(bu)放電檢測(ce)法(fa)。一種是(shi)振動分(fen)析法(fa)。這種分(fen)析方(fang)法(fa)是(shi)指變壓器運(yun)(yun)行(xing)時,需要(yao)監(jian)測(ce)變壓器振動信號的(de)強度,分(fen)析總結(jie)這種監(jian)測(ce)結(jie)果的(de)原因,然后實時檢測(ce)變壓器的(de)運(yun)(yun)行(xing)狀態(tai),有利(li)于及(ji)時發現(xian)故(gu)障(zhang),在小故(gu)障(zhang)導致大故(gu)障(zhang)之(zhi)前解(jie)決。二是(shi)局(ju)部(bu)放電檢測(ce)法(fa)。這種檢測(ce)方(fang)法(fa)是(shi)指變壓器在運(yun)(yun)行(xing)過程中機械內部(bu)出現(xian)故(gu)障(zhang),從而導致局(ju)部(bu)放電現(xian)象,從而影響放電的(de)水平(ping)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
鑒于變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)在電(dian)力工(gong)程安(an)裝(zhuang)中(zhong)的(de)(de)調控作用,技術(shu)人(ren)員必須選(xuan)擇合適的(de)(de)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)來(lai)完成安(an)裝(zhuang)操作,以(yi)發(fa)揮(hui)正常作用。纏繞(rao)(rao)材(cai)(cai)料(liao)是變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)安(an)裝(zhuang)中(zhong)應注意(yi)的(de)(de)首要問題,不同材(cai)(cai)料(liao)的(de)(de)設(she)備起著不同的(de)(de)作用。對(dui)于纏繞(rao)(rao)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi),由于設(she)備結構特殊,采用漆包(bao)(bao)線(xian)(xian)、紗包(bao)(bao)線(xian)(xian)、絲包(bao)(bao)線(xian)(xian)、紙包(bao)(bao)線(xian)(xian)等材(cai)(cai)料(liao)進(jin)行安(an)裝(zhuang),可以(yi)發(fa)揮(hui)良(liang)好的(de)(de)導(dao)電(dian)性和導(dao)熱(re)性,優越(yue)的(de)(de)耐(nai)腐蝕(shi)性也增強了電(dian)路的(de)(de)穩定性。從現有的(de)(de)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)產品來(lai)看,纏繞(rao)(rao)材(cai)(cai)料(liao)的(de)(de)安(an)裝(zhuang)一般包(bao)(bao)括:鐵芯材(cai)(cai)料(liao)、絕緣材(cai)(cai)料(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(di)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)證和高(gao)(gao)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)證在電(dian)(dian)(dian)力工(gong)程施工(gong)中(zhong)的(de)區(qu)別(bie) ??低(di)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)證和高(gao)(gao)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)證有(you)什么(me)區(qu)別(bie)?其實兩者沒有(you)區(qu)別(bie)。都是應急管理局(ju)頒(ban)發的(de)特種作業(ye)許可證,但適用人群不(bu)同(tong)(ABC可以駕駛的(de)車輛類(lei)型和駕照一樣)。低(di)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)證自然適用于(yu)低(di)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong),同(tong)樣的(de)高(gao)(gao)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)證適用于(yu)高(gao)(gao)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)。我們(men)只需要知道如(ru)何區(qu)分(fen)高(gao)(gao)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)和低(di)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)工(gong)。區(qu)分(fen)的(de)方法是看作業(ye)時的(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)。具體劃分(fen)如(ru)下:
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09 2023 06
電力工程施工中電力設備接地的作用
電力工程施(shi)工中的(de)接(jie)地線(xian)是生命的(de)安全線(xian),用于保(bao)證自動開關或漏電保(bao)護器(qi)在用電器(qi)漏電時跳閘(zha)切(qie)斷(duan)電源(yuan),避免操作人員觸電的(de)危險事故。由于接(jie)地線(xian)正常使用時沒有電流(liu)通過,所以選擇的(de)線(xian)徑相對較小。
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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
在安(an)(an)裝(zhuang)變(bian)壓器(qi)之前(qian),電(dian)(dian)力工程(cheng)應該進行(xing)一個小的(de)安(an)(an)全(quan)架設,即在安(an)(an)裝(zhuang)變(bian)壓器(qi)之前(qian),應該通過開(kai)關(guan)暫(zan)時關(guan)閉一個范圍(wei)內(nei)的(de)線路,為操作人員提供不通電(dian)(dian)的(de)安(an)(an)全(quan)條件,這是(shi)關(guan)鍵。如果(guo)連續通電(dian)(dian),就不能(neng)安(an)(an)裝(zhuang)。變(bian)壓器(qi)的(de)使用和(he)安(an)(an)裝(zhuang)是(shi)關(guan)鍵環節。如果(guo)安(an)(an)裝(zhuang)不當,自然會影響你的(de)用電(dian)(dian)量,甚(shen)至影響整個地區的(de)市(shi)民用電(dian)(dian)量。因此,在安(an)(an)裝(zhuang)變(bian)壓器(qi)時,應邀(yao)請電(dian)(dian)工操作,避(bi)免不知道(dao)怎么做的(de)人隨意(yi)開(kai)始。