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)源出現斷(duan)相時，相序(xu)繼電(dian)(dian)(dian)(dian)(dian)器動(dong)作切斷(duan)a全回路(lu)，使電(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)停止(zhi)運行(xing)。這種故障(zhang)多出在(zai)繼電(dian)(dian)(dian)(dian)(dian)器邏(luo)輯控制的(de)電(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)，因為是老式電(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)，電(dian)(dian)(dian)(dian)(dian)源開關(guan)多為閘刀式，電(dian)(dian)(dian)(dian)(dian)源經(jing)過(guo)j限開關(guan)，再送(song)至電(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)控制柜、電(dian)(dian)(dian)(dian)(dian)源流經(jing)的(de)兩個開關(guan)，共(gong)六根保(bao)險絲。電(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)運行(xing)、起(qi)動(dong)，電(dian)(dian)(dian)(dian)(dian)流都(dou)很大。經(jing)過(guo)一段(duan)時間運行(xing)，如維(wei)保(bao)人員不及(ji)時檢查，保(bao)險絲與螺絲連(lian)接(jie)處易燒斷(duan)，電(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)斷(duan)相，引起(qi)停梯(ti)(ti)，輕(qing)則(ze)(ze)關(guan)人，重則(ze)(ze)發生事故。

主要預防措施：

①保養人員(yuan)要經常巡視檢查，發現(xian)可疑之處，及時修(xiu)理，出現(xian)發燙、打火花(hua)諸類情形應立即(ji)更換。

②建議(yi)用戶將閘刀開(kai)關(guan)更換為相當容量(liang)的空(kong)氣開(kai)關(guan)。

③現(xian)在(zai)設計的(de)電(dian)梯(ti)都沒有電(dian)源j限(xian)開(kai)關，筆(bi)者認為，可以就a全(quan)回路略作改動(dong)，即加裝上(shang)、下j限(xian)電(dian)氣開(kai)關串聯(lian)在(zai)a全(quan)回路中，拆除原j限(xian)開(kai)關。

2、漲(zhang)繩輪開(kai)(kai)關斷(duan)開(kai)(kai)引起停梯

像曳引繩(sheng)一樣(yang)，限速器(qi)繩(sheng)同樣(yang)會在使用過程中伸長。由于底坑漲繩(sheng)輪重錘的(de)作用，漲繩(sheng)輪開(kai)關打板偏移，直到斷開(kai)開(kai)關導致停梯。

對于電梯安裝的新裝電梯，電梯安裝人(ren)員須(xu)每月檢查(cha)一次，運(yun)行一年以后，三個月檢查(cha)一次，如此(ci)即可(ke)防患于未然。由于廳門密(mi)封不嚴，井(jing)道(dao)有(you)墻洞等各種(zhong)原因(yin)，老(lao)鼠竄(cuan)入(ru)井(jing)道(dao)時(shi)有(you)的(de)會摔死(si)，有(you)的(de)掉入(ru)底坑因(yin)想方(fang)設法逃出竄(cuan)入(ru)繩輪(lun)而卡入(ru)其中，電梯向下(xia)運(yun)行導致a全鉗開(kai)(kai)關動作，有(you)的(de)限速器開(kai)(kai)關也一起聯動。