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高低壓開關柜安裝和接地保護裝置分析

2019-09-26

在配電站、電力線路、發電站及其廠礦企業等供電系統的維修和維護保養全過程中,高、低壓開關機器設備具備關鍵的實際意義,該機器設備的關鍵功效是:依據電力網和電器設備運作的要求,將電器設備或是電力線從電力網發布,或是資金投入到電力網中;當電力工程產生常見故障時,能夠快速將產生常見故障一部分的電源電路快速斷開,進而進一步提高了電力網的安全性運作,維護了檢修工作人員的生命安全。因而為確保輸變電機器設備的一切正常維護保養和維修,使電氣設備一切正常運作,必須重中之重考慮到高低壓開關柜設備,其對全部供電系(xi)統的一切正常運(yun)作具備關鍵的實際意(yi)義。

依照功效和作用的不一樣,能夠將高低壓開關柜分為下列幾類種類:

(1) 元(yuan)(yuan)器(qi)(qi)件和(he)(he)組(zu)成(cheng)元(yuan)(yuan)器(qi)(qi)件。元(yuan)(yuan)器(qi)(qi)件和(he)(he)組(zu)成(cheng)元(yuan)(yuan)器(qi)(qi)件的(de)類型較多,在其中常常應用的(de)有:保護接地(di)電源開(kai)(kai)關(guan)、常見故(gu)障隔離開(kai)(kai)關(guan)高(gao)壓負(fu)荷(he)開(kai)(kai)關(guan)、融斷(duan)保護裝置、短路保護器(qi)(qi)等,除開(kai)(kai)這種元(yuan)(yuan)器(qi)(qi)件,還包含將這種元(yuan)(yuan)器(qi)(qi)件開(kai)(kai)展組(zu)成(cheng)后獲得的(de)元(yuan)(yuan)器(qi)(qi)件組(zu)成(cheng),例(li)如(ru)斷(duan)路器(qi)(qi)電源開(kai)(kai)關(guan)組(zu)成(cheng)和(he)(he)防護高(gao)壓負(fu)荷(he)開(kai)(kai)關(guan)組(zu)成(cheng)等。

(2) 詳(xiang)細(xi)機(ji)器設備。元器件(jian)和組成(cheng)元器件(jian)假如開(kai)(kai)展有效的分(fen)(fen)派(pai),將(jiang)其(qi)開(kai)(kai)展有機(ji)化學的組成(cheng),能(neng)夠(gou)(gou)進一步(bu)提(ti)高(gao)高(gao)、低壓(ya)開(kai)(kai)關(guan)機(ji)器設備的特性,將(jiang)其(qi)用塑料(liao)外(wai)殼開(kai)(kai)展封閉式后,能(neng)夠(gou)(gou)獲得十分(fen)(fen)詳(xiang)細(xi)的作用商品,例如高(gao)壓(ya)開(kai)(kai)關(guan)柜、汽(qi)體絕緣層金屬材料(liao)封閉式開(kai)(kai)關(guan)柜(GIS)等。

從(cong)20世紀90時代(dai)剛開始(shi),高、低(di)壓開關(guan)制(zhi)(zhi)造行業(ye)剛開始(shi)導入(ru)中(zhong)國,并獲得了快(kuai)速的發展(zhan)趨(qu)勢。在上世紀六七十年代(dai),中(zhong)國1度產(chan)生了電源(yuan)開關(guan)的壟(long)斷市(shi)場,可是如今不計其數家(jia)開關(guan)柜生產(chan)廠家(jia)早已(yi)資金投入(ru)生產(chan)制(zhi)(zhi)造,從(cong)而能夠顯著看得出(chu)在我國高、低(di)壓開關(guan)制(zhi)(zhi)造行業(ye)發展(zhan)之(zhi)快(kuai)速。

高、低壓(ya)(ya)開關(guan)柜(ju)是這(zhe)種箱式(shi)變壓(ya)(ya)器,它聯接了高壓(ya)(ya)配電(dian)柜(ju)、低壓(ya)(ya)開關(guan)柜(ju)、聯接電(dian)纜線(xian)(xian)幾(ji)種機器設備,在供電(dian)局、變電(dian)站運用普(pu)遍,隨后經變電(dian)器降血壓(ya)(ya)到低壓(ya)(ya)開關(guan)柜(ju),低壓(ya)(ya)配電(dian)箱、配電(dian)箱、控(kong)制柜(ju)等配有低壓(ya)(ya)配電(dian)柜(ju),就是說把某些電(dian)源開關(guan)、按鍵、隔(ge)離開關(guan)、顯示(shi)燈、電(dian)纜線(xian)(xian)、斷(duan)路器、儀(yi)表盤這(zhe)類維護元器件拼(pin)裝成一體(ti)化的箱式(shi)變壓(ya)(ya)器。

2 高低(di)壓配電柜(ju)的(de)安裝(zhuang)

2.1 高低壓配電柜的(de)安裝計劃方案、執行方式

國(guo)家(jia)對高(gao)壓(ya)柜、低壓(ya)開關(guan)柜安(an)(an)(an)裝(zhuang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)規定是(shi)十分嚴苛的,務(wu)必嚴格執行國(guo)家(jia)新消息施(shi)(shi)(shi)行的《電氣設(she)(she)備設(she)(she)備設(she)(she)備安(an)(an)(an)裝(zhuang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)高(gao)壓(ya)電器工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)及施(shi)(shi)(shi)工(gong)(gong)(gong)驗(yan)收規范(fan)》、《電氣設(she)(she)備設(she)(she)備設(she)(she)備安(an)(an)(an)裝(zhuang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)盤柜及一回控制回路布(bu)線工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)及施(shi)(shi)(shi)工(gong)(gong)(gong)驗(yan)收規范(fan)》、《電氣設(she)(she)備設(she)(she)備設(she)(she)備安(an)(an)(an)裝(zhuang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)母線槽設(she)(she)備工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)及施(shi)(shi)(shi)工(gong)(gong)(gong)驗(yan)收規范(fan)》開展安(an)(an)(an)裝(zhuang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)。

(1) 工程施工方(fang)案(an)

拆(chai)箱查(cha)驗(yan)機器(qi)設備(bei)(bei)→設備(bei)(bei)搬運→穩裝柜門(men)→柜里再次線布(bu)線→調節試驗(yan)→取得成功工(gong)(gong)程驗(yan)收→合(he)閘運行。(2) 工(gong)(gong)程施工(gong)(gong)方式

根據工程圖紙(zhi)進行(xing)逐(zhu)漸安裝(zhuang),將(jiang)柜(ju)(ju)(ju)按照規定(ding)的(de)(de)次序放(fang)到基本(ben)槽鋼上。一(yi)個(ge)個(ge)將(jiang)正(zheng)銀(yin)行(xing)服務和側邊的(de)(de)平整(zheng)度開(kai)展(zhan)效正(zheng)。成列柜(ju)(ju)(ju)置(zhi)放(fang)好各柜(ju)(ju)(ju)后(hou)(hou)(hou),先將(jiang)兩(liang)邊的(de)(de)柜(ju)(ju)(ju)找正(zheng),將(jiang)小(xiao)線彈在柜(ju)(ju)(ju)正(zheng)下方離路面2/3高寬比(bi)的(de)(de)部位,隨后(hou)(hou)(hou)開(kai)展(zhan)每臺臺找正(zheng),找正(zheng)的(de)(de)全(quan)過程中根據鐵(tie)片(pian)能(neng)夠開(kai)展(zhan)適度調(diao)節(jie),鐵(tie)片(pian)的(de)(de)薄厚要(yao)求為(wei)(wei)(wei)0.5mm,每住(zhu)所墊的(de)(de)鐵(tie)片(pian)多見3片(pian)。隨后(hou)(hou)(hou)就是說用(yong)手鉆在基本(ben)槽鋼墻上轉孔,轉孔的(de)(de)規格通(tong)常為(wei)(wei)(wei),低壓開(kai)關柜(ju)(ju)(ju)ф12.2mm孔,高壓柜(ju)(ju)(ju)ф16.2mm 孔,各自用(yong)M12、M16熱(re)鍍(du)鋅(xin)螺釘及(ji)彈簧墊圈將(jiang)他們固定(ding)不動好。施工工藝對(dui)柜(ju)(ju)(ju)門的(de)(de)豎直及(ji)水(shui)準(zhun)的(de)(de)不平度規定(ding)較為(wei)(wei)(wei)嚴苛,務必(bi)符合(he)要(yao)求,選用(yong)熱(re)鍍(du)鋅(xin)螺釘對(dui)柜(ju)(ju)(ju)門和檔板開(kai)展(zhan)連規定(ding)后(hou)(hou)(hou),剛(gang)開(kai)始(shi)做合(he)閘前(qian)的(de)(de)提前(qian)準(zhun)備工作(zuo)中。


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