數控母線加工機的安全自動裝置-力建數控

發布日期：2017-11-29 作者：力建數控點擊：

來源：力建數控母線機、母線加工機、銅排加工機、母排加工機生產廠家責(ze)任編輯：01顧(gu)問

數(shu)控(kong)母線(xian)加工機(ji)(ji)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)和(he)(he)安(an)全自(zi)動裝(zhuang)(zhuang)置(zhi)(zhi)(zhi)的(de)(de)(de)(de)基(ji)本要求(qiu)可靠(kao)性、安(an)全性、靈敏性、選擇性、速動性。繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)分類主保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)和(he)(he)后備保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)。主保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)在發(fa)生故障時(shi)，就首(shou)先(xian)正確可靠(kao)地(di)動作，在最(zui)短(duan)時(shi)間內或不帶時(shi)限地(di)切除保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)范圍內的(de)(de)(de)(de)故障。數(shu)控(kong)母線(xian)加工機(ji)(ji)如(ru)(ru)變壓器(qi)的(de)(de)(de)(de)差(cha)動保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)、輸電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)路的(de)(de)(de)(de)高頻(pin)保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)、距離保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)、零序(xu)電(dian)(dian)(dian)(dian)(dian)(dian)流保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)等(deng)。后備保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)是當被保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)氣設備、輸電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)路的(de)(de)(de)(de)主保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)或斷路器(qi)失(shi)靈時(shi)起作用(yong)的(de)(de)(de)(de)保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)，如(ru)(ru)變壓器(qi)、輸電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)路的(de)(de)(de)(de)過(guo)(guo)流保(bao)(bao)(bao)護(hu)(hu)(hu)(hu)。安(an)全自(zi)動裝(zhuang)(zhuang)置(zhi)(zhi)(zhi)如(ru)(ru)輸電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)路自(zi)動重(zhong)合閘(zha)裝(zhuang)(zhuang)置(zhi)(zhi)(zhi)，廠(chang)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)備用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)自(zi)動投(tou)入裝(zhuang)(zhuang)置(zhi)(zhi)(zhi)，變電(dian)(dian)(dian)(dian)(dian)(dian)所(suo)母線(xian)或分段母線(xian)備用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)自(zi)動投(tou)入裝(zhuang)(zhuang)置(zhi)(zhi)(zhi)，自(zi)動按頻(pin)率減載裝(zhuang)(zhuang)置(zhi)(zhi)(zhi)，電(dian)(dian)(dian)(dian)(dian)(dian)氣制動和(he)(he)自(zi)動切機(ji)(ji)裝(zhuang)(zhuang)置(zhi)(zhi)(zhi)等(deng)。母線(xian)機(ji)(ji)配電(dian)(dian)(dian)(dian)(dian)(dian)系(xi)統發(fa)生短(duan)路故障時(shi)，會出現電(dian)(dian)(dian)(dian)(dian)(dian)壓驟降、驟升或系(xi)統不對(dui)稱的(de)(de)(de)(de)狀態，而這種狀態有(you)可能導致生產或其他過(guo)(guo)程的(de)(de)(de)(de)中斷，造(zao)成(cheng)巨大的(de)(de)(de)(de)損失(shi)。為了避免此類事件的(de)(de)(de)(de)發(fa)生，對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)力企業供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)質量的(de)(de)(de)(de)要求(qiu)也持(chi)續提高，電(dian)(dian)(dian)(dian)(dian)(dian)力行業也因此在經歷(li)著重(zhong)大的(de)(de)(de)(de)變化。

而(er)另(ling)一方(fang)面，我們直至(zhi)最近仍(reng)在采用(yong)(yong)的(de)(de)(de)(de)(de)單側電(dian)(dian)(dian)源方(fang)式也因(yin)為有(you)(you)分布式電(dian)(dian)(dian)源不(bu)斷地(di)接(jie)入配電(dian)(dian)(dian)系統(tong)而(er)發(fa)生著變化。現代配電(dian)(dian)(dian)保(bao)(bao)護(hu)(hu)所采用(yong)(yong)的(de)(de)(de)(de)(de)都是(shi)綜合性的(de)(de)(de)(de)(de)多功(gong)能(neng)裝置，設計用(yong)(yong)于(yu)(yu)滿足所有(you)(you)配電(dian)(dian)(dian)系統(tong)的(de)(de)(de)(de)(de)需(xu)要，在各(ge)種系統(tong)條件下為配電(dian)(dian)(dian)系統(tong)提供最優的(de)(de)(de)(de)(de)保(bao)(bao)護(hu)(hu)功(gong)能(neng)。先(xian)進配電(dian)(dian)(dian)保(bao)(bao)護(hu)(hu)功(gong)能(neng)的(de)(de)(de)(de)(de)應(ying)用(yong)(yong)可以大(da)大(da)地(di)縮短故障清除(chu)時(shi)間。電(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)絕緣(yuan)(yuan)(yuan)材(cai)料(liao)（芯線絕緣(yuan)(yuan)(yuan)和(he)(he)外(wai)皮絕緣(yuan)(yuan)(yuan)）既是(shi)絕緣(yuan)(yuan)(yuan)材(cai)料(liao)，又(you)是(shi)隔熱材(cai)料(liao)，因(yin)此(ci)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜在橋架內敷設時(shi)，最多允許敷設2層，其原因(yin)日考慮散熱。數控母線加(jia)工機母線槽(cao)過載能(neng)力強(qiang)，取(qu)決于(yu)(yu)它用(yong)(yong)的(de)(de)(de)(de)(de)絕緣(yuan)(yuan)(yuan)材(cai)料(liao)工作(zuo)溫(wen)(wen)(wen)(wen)度高，母線加(jia)工機母線槽(cao)用(yong)(yong)的(de)(de)(de)(de)(de)絕緣(yuan)(yuan)(yuan)材(cai)料(liao)過支(zhi)采用(yong)(yong)工作(zuo)溫(wen)(wen)(wen)(wen)度為105℃的(de)(de)(de)(de)(de)材(cai)料(liao)，現已開發(fa)出工作(zuo)溫(wen)(wen)(wen)(wen)度為140℃以上的(de)(de)(de)(de)(de)輻射(she)交聯(lian)阻燃纏繞(rao)帶(dai)（PER）和(he)(he)輻射(she)交聯(lian)聚烴熱收縮管。而(er)電(dian)(dian)(dian)纜所用(yong)(yong)的(de)(de)(de)(de)(de)絕緣(yuan)(yuan)(yuan)材(cai)料(liao)常期(qi)工作(zuo)溫(wen)(wen)(wen)(wen)度一般為95℃和(he)(he)105℃，因(yin)此(ci)母線槽(cao)的(de)(de)(de)(de)(de)過載能(neng)力遠遠大(da)于(yu)(yu)電(dian)(dian)(dian)纜。母線槽(cao)幾乎不(bu)必(bi)維護(hu)(hu)，日常維護(hu)(hu)通常是(shi)測量外(wai)殼和(he)(he)穿(chuan)芯螺(luo)栓(shuan)(shuan)的(de)(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)升、進線箱的(de)(de)(de)(de)(de)接(jie)頭(tou)溫(wen)(wen)(wen)(wen)升等，穿(chuan)芯螺(luo)栓(shuan)(shuan)若采用(yong)(yong)4.8級(ji)，則(ze)(ze)需(xu)要定期(qi)緊固，若采用(yong)(yong)8.8級(ji)的(de)(de)(de)(de)(de)高強(qiang)螺(luo)栓(shuan)(shuan)則(ze)(ze)不(bu)必(bi)定期(qi)堅固。

數控母線加工機的安全自動裝置-力建數控

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