安徽配電柜廠家如何對電氣電路的故障進行分析
安徽得潤電氣技術有限公司是一家安徽配電柜廠家,我(wo)們在進行電(dian)氣電(dian)路(lu)的故(gu)障(zhang)分(fen)析時一般是(shi)以下(xia)面這4個(ge)方面進行的,分(fen)享(xiang)給大(da)家(jia),希望(wang)能(neng)夠幫助(zhu)大(da)家(jia)進行故(gu)障(zhang)分(fen)析:
1)首先是分(fen)析供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)源部分(fen):測量電(dian)(dian)(dian)源看(kan)有沒(mei)有電(dian)(dian)(dian)或(huo)缺相,如果電(dian)(dian)(dian)源不(bu)正常,看(kan)一下(xia)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)源的斷路(lu)器是否跳閘,二次控(kong)制電(dian)(dian)(dian)路(lu)的熔(rong)(rong)斷器或(huo)熔(rong)(rong)絲(si)是否燒斷,電(dian)(dian)(dian)源開關(guan)的觸(chu)點是否良好。在(zai)實(shi)際(ji)工(gong)作中,很多(duo)人往往忽略了這一步(bu)。如果設備的供(gong)電(dian)(dian)(dian)部分(fen)正常,這一步(bu)可(ke)以跳過。
2)檢(jian)查設(she)備的(de)輸(shu)(shu)入(ru)部分(fen):在(zai)閉環的(de)自(zi)(zi)動控(kong)制(zhi)系(xi)統中,如果(guo)沒有輸(shu)(shu)入(ru)信號或(huo)(huo)輸(shu)(shu)入(ru)信號不(bu)正常(chang)(chang),則系(xi)統時無(wu)法正常(chang)(chang)工(gong)作的(de)。檢(jian)查輸(shu)(shu)入(ru)傳感器(qi)是(shi)否故(gu)障或(huo)(huo)斷線,在(zai)電氣(qi)控(kong)制(zhi)中,如果(guo)功(gong)能(neng)輸(shu)(shu)入(ru)按(an)鈕觸點(dian)不(bu)正常(chang)(chang)或(huo)(huo)是(shi)繼電器(qi)的(de)自(zi)(zi)保觸點(dian)接(jie)觸不(bu)良,電控(kong)系(xi)統也不(bu)能(neng)正常(chang)(chang)工(gong)作。如果(guo)所有的(de)輸(shu)(shu)入(ru)信號顯示正常(chang)(chang)或(huo)(huo)功(gong)能(neng)控(kong)制(zhi)按(an)鈕及自(zi)(zi)保觸點(dian)正常(chang)(chang)則此步(bu)跳過。
3)檢查設(she)(she)備(bei)(bei)的輸出(chu)部分(fen):如果(guo)(guo)控(kong)制器(qi)的輸出(chu)信(xin)號有(you)(you),但執(zhi)(zhi)行(xing)器(qi)(如變頻器(qi))不動作,說(shuo)明是執(zhi)(zhi)行(xing)部分(fen)有(you)(you)問題(ti)或到執(zhi)(zhi)行(xing)器(qi)的連線有(you)(you)問題(ti)。在電(dian)氣控(kong)制中,檢查輸出(chu)到電(dian)動機(ji)等用(yong)電(dian)設(she)(she)備(bei)(bei)去的電(dian)源是否正(zheng)常(chang),有(you)(you)無(wu)缺相問題(ti),如果(guo)(guo)正(zheng)常(chang),說(shuo)明是用(yong)電(dian)設(she)(she)備(bei)(bei)(或電(dian)動機(ji))自身有(you)(you)問題(ti)。如果(guo)(guo)控(kong)制器(qi)的輸出(chu)信(xin)號正(zheng)常(chang),則跳過此(ci)步。
4)檢查中間電路及主控制器:由電源開始按(an)從上向下(xia)的順序檢查中間電路,看(kan)到底是哪個部件(jian)出現的斷電或缺(que)相,然(ran)后解決之。對(dui)于主控制器(如(ru)(ru)PLC),先(xian)單點檢查輸(shu)出口的動作和(he)輸(shu)出信號(hao)是否正常(chang)(chang),如(ru)(ru)果(guo)正常(chang)(chang)再重點檢查程序看(kan)是哪里有問題。
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