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07 2023 07
輸變電工程施工為什么需要管理
雖然(ran)(ran)在輸變電工(gong)程建設項目(mu)管(guan)(guan)(guan)理(li)方(fang)面有多年的經驗,但(dan)(dan)與(yu)國際(ji)大(da)型電力集團相比(bi),仍(reng)(reng)(reng)有較大(da)差距,主(zhu)(zhu)要表現為: ??一是管(guan)(guan)(guan)理(li)團隊專(zhuan)(zhuan)(zhuan)業化(hua)程度不高;目(mu)前,雖然(ran)(ran)電力建設項目(mu)管(guan)(guan)(guan)理(li)已經進行(xing)了一些開拓性的探(tan)索,比(bi)如成立專(zhuan)(zhuan)(zhuan)業的工(gong)程管(guan)(guan)(guan)理(li)團隊,實行(xing)項目(mu)責(ze)任制,但(dan)(dan)工(gong)程管(guan)(guan)(guan)理(li)的主(zhu)(zhu)要模(mo)式仍(reng)(reng)(reng)然(ran)(ran)遵循行(xing)政(zheng)管(guan)(guan)(guan)理(li)模(mo)式,對于(yu)輸變電工(gong)程項目(mu)的管(guan)(guan)(guan)理(li)理(li)念仍(reng)(reng)(reng)然(ran)(ran)有很多未完成的實施項目(mu)責(ze)任制。根據行(xing)政(zheng)管(guan)(guan)(guan)理(li)模(mo)式,項目(mu)管(guan)(guan)(guan)理(li)團隊由不同生產單位(wei)的人員組成,其成員來自(zi)不同生產單位(wei)的項目(mu)。雖然(ran)(ran)技術(shu)和管(guan)(guan)(guan)理(li)水平較高,但(dan)(dan)與(yu)基礎(chu)項目(mu)管(guan)(guan)(guan)理(li)相比(bi),缺乏應(ying)有的專(zhuan)(zhuan)(zhuan)業知(zhi)識、技能(neng)和技能(neng)。
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30 2023 06
電力施工中變壓器故障檢測技術
(1)在(zai)(zai)線(xian)監控技術 ??在(zai)(zai)線(xian)監測技術主要采用振(zhen)動(dong)(dong)分(fen)析(xi)法(fa)和局(ju)部放(fang)(fang)電檢測法(fa)。一種(zhong)是(shi)振(zhen)動(dong)(dong)分(fen)析(xi)法(fa)。這種(zhong)分(fen)析(xi)方(fang)法(fa)是(shi)指(zhi)變壓(ya)(ya)器運行(xing)時(shi),需(xu)要監測變壓(ya)(ya)器振(zhen)動(dong)(dong)信號(hao)的強度,分(fen)析(xi)總(zong)結這種(zhong)監測結果的原因,然后實時(shi)檢測變壓(ya)(ya)器的運行(xing)狀態,有(you)利于及時(shi)發現(xian)故(gu)障(zhang),在(zai)(zai)小故(gu)障(zhang)導致(zhi)大故(gu)障(zhang)之(zhi)前解(jie)決。二(er)是(shi)局(ju)部放(fang)(fang)電檢測法(fa)。這種(zhong)檢測方(fang)法(fa)是(shi)指(zhi)變壓(ya)(ya)器在(zai)(zai)運行(xing)過程中機械(xie)內部出現(xian)故(gu)障(zhang),從而導致(zhi)局(ju)部放(fang)(fang)電現(xian)象,從而影響放(fang)(fang)電的水平和穩(wen)定性(xing)。
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23 2023 06
電力工程安裝中變壓器的材料
鑒于(yu)(yu)變(bian)壓(ya)(ya)器(qi)在(zai)電力工程安(an)(an)裝(zhuang)中的(de)(de)調控(kong)作用(yong),技術人員必須選擇合適(shi)的(de)(de)變(bian)壓(ya)(ya)器(qi)來(lai)完成安(an)(an)裝(zhuang)操作,以(yi)(yi)發揮(hui)正常作用(yong)。纏(chan)(chan)繞材(cai)(cai)料是變(bian)壓(ya)(ya)器(qi)安(an)(an)裝(zhuang)中應注意(yi)的(de)(de)首要問(wen)題,不(bu)同(tong)(tong)材(cai)(cai)料的(de)(de)設(she)備起著不(bu)同(tong)(tong)的(de)(de)作用(yong)。對于(yu)(yu)纏(chan)(chan)繞變(bian)壓(ya)(ya)器(qi),由于(yu)(yu)設(she)備結構特殊,采用(yong)漆包(bao)線、紗包(bao)線、絲(si)包(bao)線、紙包(bao)線等材(cai)(cai)料進行安(an)(an)裝(zhuang),可以(yi)(yi)發揮(hui)良好的(de)(de)導電性和導熱性,優越的(de)(de)耐(nai)腐蝕性也增強了(le)電路的(de)(de)穩定性。從現有的(de)(de)變(bian)壓(ya)(ya)器(qi)產品來(lai)看,纏(chan)(chan)繞材(cai)(cai)料的(de)(de)安(an)(an)裝(zhuang)一般(ban)包(bao)括:鐵芯材(cai)(cai)料、絕緣材(cai)(cai)料
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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
低壓電工(gong)(gong)(gong)證(zheng)和高(gao)壓電工(gong)(gong)(gong)證(zheng)在電力工(gong)(gong)(gong)程施工(gong)(gong)(gong)中的(de)區(qu)別 ??低壓電工(gong)(gong)(gong)證(zheng)和高(gao)壓電工(gong)(gong)(gong)證(zheng)有什么區(qu)別?其實(shi)兩(liang)者沒有區(qu)別。都(dou)是(shi)應急管理局頒發的(de)特種作業許(xu)可證(zheng),但適(shi)(shi)用人群(qun)不同(tong)(ABC可以駕(jia)駛的(de)車輛類(lei)型和駕(jia)照一樣(yang))。低壓電工(gong)(gong)(gong)證(zheng)自然適(shi)(shi)用于低壓電工(gong)(gong)(gong),同(tong)樣(yang)的(de)高(gao)壓電工(gong)(gong)(gong)證(zheng)適(shi)(shi)用于高(gao)壓電工(gong)(gong)(gong)。我們只需要知道如何(he)區(qu)分高(gao)壓電工(gong)(gong)(gong)和低壓電工(gong)(gong)(gong)。區(qu)分的(de)方法是(shi)看作業時的(de)電壓。具體劃(hua)分如下:
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09 2023 06
電力工程施工中電力設備接地的作用
電(dian)(dian)力工程施(shi)工中(zhong)的(de)接(jie)地(di)線(xian)是生命的(de)安全線(xian),用于(yu)保(bao)證自動開關或(huo)漏(lou)電(dian)(dian)保(bao)護器在用電(dian)(dian)器漏(lou)電(dian)(dian)時跳閘切斷電(dian)(dian)源,避免操作人員觸(chu)電(dian)(dian)的(de)危險事故(gu)。由于(yu)接(jie)地(di)線(xian)正(zheng)常使用時沒有電(dian)(dian)流通過,所以選(xuan)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(ya)(ya)器(qi)之前,電(dian)(dian)(dian)力工程應(ying)(ying)該進(jin)行一(yi)個小的(de)(de)安(an)(an)全架(jia)設(she),即在安(an)(an)裝(zhuang)變(bian)壓(ya)(ya)器(qi)之前,應(ying)(ying)該通過開關暫時(shi)(shi)關閉一(yi)個范圍內的(de)(de)線路,為操作(zuo)人(ren)(ren)員提供(gong)不(bu)(bu)通電(dian)(dian)(dian)的(de)(de)安(an)(an)全條(tiao)件,這(zhe)是(shi)關鍵(jian)。如(ru)(ru)果連(lian)續通電(dian)(dian)(dian),就不(bu)(bu)能(neng)安(an)(an)裝(zhuang)。變(bian)壓(ya)(ya)器(qi)的(de)(de)使(shi)用(yong)和安(an)(an)裝(zhuang)是(shi)關鍵(jian)環節。如(ru)(ru)果安(an)(an)裝(zhuang)不(bu)(bu)當(dang),自(zi)然(ran)會影響你的(de)(de)用(yong)電(dian)(dian)(dian)量(liang),甚(shen)至影響整個地區的(de)(de)市民用(yong)電(dian)(dian)(dian)量(liang)。因此,在安(an)(an)裝(zhuang)變(bian)壓(ya)(ya)器(qi)時(shi)(shi),應(ying)(ying)邀請電(dian)(dian)(dian)工操作(zuo),避免不(bu)(bu)知道怎么做的(de)(de)人(ren)(ren)隨意開始。