隨著科技的進步，電梯技術水平不斷提高，其運行的可靠性明顯加大。在維修保養中，一些比較典型的停梯故障需要及時排出。

1、斷相引起停梯

當三相電(dian)(dian)(dian)(dian)(dian)源(yuan)出現斷相時(shi)(shi)，相序繼電(dian)(dian)(dian)(dian)(dian)器(qi)動(dong)作切斷a全回路，使電(dian)(dian)(dian)(dian)(dian)梯(ti)停止運(yun)行。這(zhe)種(zhong)故障多(duo)出在繼電(dian)(dian)(dian)(dian)(dian)器(qi)邏輯控(kong)制(zhi)的電(dian)(dian)(dian)(dian)(dian)梯(ti)，因為是老(lao)式(shi)電(dian)(dian)(dian)(dian)(dian)梯(ti)，電(dian)(dian)(dian)(dian)(dian)源(yuan)開(kai)關(guan)(guan)多(duo)為閘刀(dao)式(shi)，電(dian)(dian)(dian)(dian)(dian)源(yuan)經過(guo)j限開(kai)關(guan)(guan)，再送至電(dian)(dian)(dian)(dian)(dian)梯(ti)控(kong)制(zhi)柜、電(dian)(dian)(dian)(dian)(dian)源(yuan)流經的兩個開(kai)關(guan)(guan)，共六根保(bao)險絲(si)。電(dian)(dian)(dian)(dian)(dian)梯(ti)運(yun)行、起(qi)動(dong)，電(dian)(dian)(dian)(dian)(dian)流都很大。經過(guo)一(yi)段(duan)時(shi)(shi)間運(yun)行，如維保(bao)人員不及時(shi)(shi)檢(jian)查，保(bao)險絲(si)與螺絲(si)連接處易(yi)燒(shao)斷，電(dian)(dian)(dian)(dian)(dian)梯(ti)斷相，引起(qi)停梯(ti)，輕則關(guan)(guan)人，重則發生事故。

主要預防措施：

①保(bao)養人員要經常巡視(shi)檢查，發現可疑之(zhi)處，及時(shi)修(xiu)理，出現發燙、打火花諸(zhu)類(lei)情形(xing)應立即更換。

②建議用戶將閘刀開(kai)關(guan)更換為相當(dang)容量(liang)的空(kong)氣(qi)開(kai)關(guan)。

③現在設計的電(dian)梯都沒有電(dian)源j限(xian)開(kai)關(guan)，筆者認為，可以就a全(quan)回(hui)路略作改動，即加(jia)裝上、下j限(xian)電(dian)氣開(kai)關(guan)串(chuan)聯在a全(quan)回(hui)路中(zhong)，拆除原(yuan)j限(xian)開(kai)關(guan)。

2、漲繩輪開(kai)關斷開(kai)引起停梯

像曳(ye)引(yin)繩(sheng)一樣，限速器繩(sheng)同樣會在(zai)使用過程中伸長(chang)。由于(yu)底坑漲繩(sheng)輪重錘(chui)的作用，漲繩(sheng)輪開(kai)關(guan)打(da)板偏(pian)移(yi)，直到(dao)斷開(kai)開(kai)關(guan)導(dao)致停梯(ti)。

對于電梯安裝的新裝電梯，電梯安裝人員須每月檢查一次(ci)，運行(xing)一年以(yi)后，三個月檢查一次(ci)，如此(ci)即可(ke)防患于未然。由(you)于廳門密(mi)封不嚴，井道有(you)墻洞等各種原因，老(lao)鼠竄(cuan)入(ru)井道時有(you)的會(hui)摔(shuai)死，有(you)的掉入(ru)底坑因想(xiang)方設法逃出(chu)竄(cuan)入(ru)繩(sheng)輪而(er)卡入(ru)其(qi)中，電梯向(xiang)下(xia)運行(xing)導致a全鉗開關動作，有(you)的限(xian)速器開關也一起聯動。