防爆電(dian)(dian)機(ji)(ji)(ji)加油時(shi)轉動(dong)慢且(qie)有(you)發熱(re)原因：有(you)可能是電(dian)(dian)動(dong)機(ji)(ji)(ji)損壞(huai)造成，電(dian)(dian)機(ji)(ji)(ji)的內部(bu)線圈一路斷(duan)路與單(dan)相電(dian)(dian)動(dong)機(ji)(ji)(ji)的啟(qi)動(dong)電(dian)(dian)容損壞(huai)均會(hui)造成電(dian)(dian)動(dong)機(ji)(ji)(ji)載(zai)荷能力降低，出現(xian)加油機(ji)(ji)(ji) 開(kai)機(ji)(ji)(ji)時(shi)動(dong)緩(huan)慢且(qie)有(you)發熱(re)現(xian)象(xiang)。

外(wai)部(bu)配電(dian)線(xian)路問題也會造(zao)成防爆電(dian)機轉動(dong)緩慢(man)且有發熱現象（如三相電(dian)源缺(que)相，配電(dian)線(xian)路過(guo)遠(yuan)、線(xian)徑(jing)過(guo)細、電(dian)壓(ya)過(guo)低等）。

通過以上機點判斷基本就可以判斷出電機轉動慢且有發熱現象的故障，經過維修后應該可以不會再出現此類故障。