久久久精品人妻一区二区三区蜜桃_日本hd高清xxxxvideos_精品成a人无码亚洲成a无码_熟妇熟女乱妇乱女网站

防爆電動滾筒(tong)在使用(yong)的(de)(de)時候(hou)，如果因為操作不當，導致整個(ge)設備(bei)升溫過高的(de)(de)話，將會(hui)造成(cheng)電動滾筒(tong)出現故障，這(zhe)樣(yang)維修起(qi)來(lai)是比較麻煩的(de)(de)，所以設備(bei)一(yi)般都(dou)會(hui)配備(bei)熱(re)保(bao)護(hu)功能(neng)(neng)，防止設備(bei)出現過熱(re)情況導致的(de)(de)故障，下面來(lai)給大家介紹一(yi)下其熱(re)保(bao)護(hu)功能(neng)(neng)。
　　防(fang)爆電(dian)(dian)動(dong)(dong)(dong)滾(gun)筒中電(dian)(dian)動(dong)(dong)(dong)機的(de)熱(re)保護(hu)裝(zhuang)置(zhi)是將(jiang)熱(re)敏電(dian)(dian)阻(zu)于(yu)電(dian)(dian)動(dong)(dong)(dong)機的(de)三(san)相(xiang)繞組(zu)(zu)中，每相(xiang)繞組(zu)(zu)中放一只(zhi)熱(re)敏電(dian)(dian)阻(zu)，三(san)只(zhi)熱(re)敏電(dian)(dian)串聯(lian)。電(dian)(dian)動(dong)(dong)(dong)機的(de)三(san)相(xiang)繞組(zu)(zu)中，只(zhi)要一相(xiang)繞組(zu)(zu)發(fa)熱(re)量超(chao)過規(gui)定的(de)溫度時(shi)(shi)，雙金(jin)屬片便(bian)起(qi)作(zuo)(zuo)用(yong)切斷電(dian)(dian)源(yuan)，電(dian)(dian)動(dong)(dong)(dong)機立即停止工(gong)作(zuo)(zuo)。這樣熱(re)保護(hu)裝(zhuang)置(zhi)便(bian)起(qi)到了過載保護(hu)作(zuo)(zuo)用(yong)。經過一段時(shi)(shi)間后，電(dian)(dian)動(dong)(dong)(dong)機繞組(zu)(zu)溫度逐漸(jian)下(xia)降(jiang)到正常工(gong)作(zuo)(zuo)溫度時(shi)(shi)，雙金(jin)屬片也隨之冷卻，恢(hui)復到初始(shi)狀(zhuang)態(tai)，電(dian)(dian)路被接通，電(dian)(dian)動(dong)(dong)(dong)機又可(ke)以重新正常工(gong)作(zuo)(zuo)。