變(bian)壓(ya)器(qi)電(dian)(dian)機(ji)在使(shi)用的(de)(de)(de)過(guo)(guo)程中(zhong),要(yao)不(bu)定時(shi)的(de)(de)(de)進行(xing)檢修,不(bu)僅是(shi)為了我們的(de)(de)(de)人(ren)身安(an)全,同時(shi)也(ye)是(shi)為了保證機(ji)器(qi)的(de)(de)(de)正常運(yun)轉.但也(ye)有(you)不(bu)少人(ren)不(bu)知道(dao)變(bian)壓(ya)器(qi)電(dian)(dian)機(ji)為什么要(yao)進行(xing)檢修,今(jin)天就讓重(zhong)慶直流電(dian)(dian)機(ji)維修和大(da)(da)家分(fen)享變(bian)壓(ya)器(qi)電(dian)(dian)機(ji)進行(xing)檢修有(you)何作用防止變(bian)壓(ya)器(qi)鐵(tie)芯(xin)絕(jue)緣(yuan)(yuan)老(lao)化(hua)損壞.鐵(tie)芯(xin) 絕(jue)緣(yuan)(yuan)老(lao)化(hua)或(huo)(huo)(huo)夾緊螺栓套管損壞,會(hui)使(shi)鐵(tie)芯(xin)產生(sheng)(sheng)很(hen)大(da)(da)的(de)(de)(de)渦流,引(yin)起鐵(tie)芯(xin)長期發(fa)熱造成(cheng)絕(jue)緣(yuan)(yuan)老(lao)化(hua)保證導(dao)線(xian)接(jie)觸良好.線(xian)圈內(nei)部接(jie)頭接(jie)觸不(bu)良,線(xian)圈之間(jian)的(de)(de)(de)連 接(jie)點引(yin)至高低壓(ya)側(ce)套管的(de)(de)(de)接(jie)點以及分(fen)接(jie)開關上各支(zhi)點接(jie)觸不(bu)良,會(hui)產生(sheng)(sheng)局(ju)部過(guo)(guo)熱,破壞絕(jue)緣(yuan)(yuan),發(fa)生(sheng)(sheng)短(duan)路(lu)(lu)或(huo)(huo)(huo)斷(duan)路(lu)(lu).此時(shi)所產生(sheng)(sheng)的(de)(de)(de)高 溫電(dian)(dian)弧(hu)會(hui)使(shi)絕(jue)緣(yuan)(yuan)油分(fen)解(jie),產生(sheng)(sheng)大(da)(da)量氣體,變(bian)壓(ya)器(qi)內(nei)壓(ya)力加.當壓(ya)力超過(guo)(guo)瓦(wa)斯斷(duan)電(dian)(dian)器(qi)保護定值而不(bu)跳閘時(shi),會(hui)發(fa)生(sheng)(sheng)爆炸防止變(bian)壓(ya)器(qi)過(guo)(guo)載運(yun)行(xing).如果長期過(guo)(guo)載運(yun)行(xing),會(hui)引(yin)起線(xian)圈發(fa)熱,使(shi)絕(jue)緣(yuan)(yuan)逐漸老(lao)化(hua),造成(cheng)匣(xia)間(jian)短(duan)路(lu)(lu)相間(jian)短(duan)路(lu)(lu)或(huo)(huo)(huo)對地短(duan)路(lu)(lu)及油的(de)(de)(de)分(fen)解(jie)短(duan)路(lu)(lu)保護要(yao)可靠(kao).
變(bian)壓(ya)器線圈(quan)或(huo)負(fu)載發 生短(duan)路(lu),變(bian)壓(ya)器將(jiang)承(cheng)受相當大的(de)短(duan)路(lu)電流,如果保(bao)護(hu)(hu)(hu)系統(tong)失靈(ling)或(huo)保(bao)護(hu)(hu)(hu)定(ding)值過大,就(jiu)有可(ke)能(neng)燒毀變(bian)壓(ya)器.為此,必(bi)須安裝可(ke)靠(kao)的(de)短(duan)路(lu)保(bao)護(hu)(hu)(hu)裝置防止檢(jian)修不慎破(po)壞絕(jue)緣(yuan).變(bian)壓(ya)器檢(jian)修吊芯(xin)時(shi),應注意保(bao)護(hu)(hu)(hu)線圈(quan)或(huo)絕(jue)緣(yuan)套管,如果發現(xian)有擦破(po)損傷(shang),應及(ji)時(shi)處理(li)我們在(zai)使(shi)用直(zhi)流電機的(de)時(shi)候,除了正確操作直(zhi)流電機,還需要掌握(wo)一些基本的(de)常(chang)識.在(zai)出現(xian)問題(ti)的(de)時(shi)候,我們能(neng)夠及(ji)時(shi)解(jie)決.
現在(zai)就讓直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)維修(xiu)廠家和大家介紹(shao)介紹(shao)直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)如何防(fang)(fang)火(huo)機(ji)(ji)(ji)械周圍不得堆放雜物(wu),為避免(mian)引起火(huo)災,直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)及(ji)其啟(qi)(qi)動(dong)(dong)裝置(zhi)與(yu)可燃(ran)物(wu)之(zhi)間(jian)應(ying)(ying)(ying)保持 適當的距離檢修(xiu)后(hou)(hou)及(ji)停(ting)電(dian)(dian)(dian)(dian)(dian)(dian)超(chao)過7天以上(shang)的電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji),啟(qi)(qi)動(dong)(dong)前應(ying)(ying)(ying)測量(liang)其絕緣電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是否合格(ge),以免(mian)正式(shi)運(yun)轉后(hou)(hou),因絕緣受潮發(fa)生相(xiang)間(jian)短路(lu)或對地擊穿而燒壞電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)啟(qi)(qi)動(dong)(dong)時,應(ying)(ying)(ying)嚴格(ge)執行規定的啟(qi)(qi)動(dong)(dong)次數和啟(qi)(qi)動(dong)(dong)間(jian)隔時間(jian),盡量(liang)避免(mian)頻繁(fan)啟(qi)(qi)動(dong)(dong),以免(mian)使定子繞組積累過熱起火(huo)運(yun)行過程中,電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian) 壓(ya)不得超(chao)過允許范圍,直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的溫度聲(sheng)音(yin)振動(dong)(dong)軸串(chuan)動(dong)(dong)應(ying)(ying)(ying)正常無焦(jiao)臭味電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)出現缺(que)相(xiang)運(yun)行時,應(ying)(ying)(ying)立即切斷電(dian)(dian)(dian)(dian)(dian)(dian)源,防(fang)(fang)止電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)因缺(que)相(xiang)運(yun)行過載而發(fa)熱起火(huo)直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)一旦起火(huo),應(ying)(ying)(ying)立即切斷電(dian)(dian)(dian)(dian)(dian)(dian)源,用二氧化碳四氯(lv)化碳“1211” 滅(mie)火(huo)機(ji)(ji)(ji)及(ji)蒸汽(qi)滅(mie)火(huo)等電(dian)(dian)(dian)(dian)(dian)(dian)氣設備(bei)專用滅(mie)火(huo)機(ji)(ji)(ji)進行滅(mie)火(huo)。
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