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(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)源出現斷相(xiang)(xiang)(xiang)時，相(xiang)(xiang)(xiang)序繼(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)動作(zuo)切斷a全回路，使電(dian)(dian)(dian)(dian)(dian)梯停止運(yun)行。這種故障多(duo)出在(zai)繼(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)邏輯控制的電(dian)(dian)(dian)(dian)(dian)梯，因為是老式電(dian)(dian)(dian)(dian)(dian)梯，電(dian)(dian)(dian)(dian)(dian)源開關(guan)(guan)(guan)多(duo)為閘刀式，電(dian)(dian)(dian)(dian)(dian)源經(jing)過j限(xian)開關(guan)(guan)(guan)，再(zai)送至(zhi)電(dian)(dian)(dian)(dian)(dian)梯控制柜、電(dian)(dian)(dian)(dian)(dian)源流經(jing)的兩個(ge)開關(guan)(guan)(guan)，共六根保險絲。電(dian)(dian)(dian)(dian)(dian)梯運(yun)行、起動，電(dian)(dian)(dian)(dian)(dian)流都(dou)很大。經(jing)過一段時間運(yun)行，如維保人員(yuan)不及時檢查(cha)，保險絲與螺絲連接處(chu)易燒(shao)斷，電(dian)(dian)(dian)(dian)(dian)梯斷相(xiang)(xiang)(xiang)，引起停梯，輕則(ze)關(guan)(guan)(guan)人，重(zhong)則(ze)發生事(shi)故。

主要預防措施：

①保養(yang)人員要經常巡視檢查，發現可疑之處(chu)，及時修理，出現發燙、打火花諸(zhu)類情(qing)形應立即更換。

②建議用戶將(jiang)閘刀開關(guan)(guan)更(geng)換(huan)為相當容(rong)量的空氣(qi)開關(guan)(guan)。

③現在設計(ji)的(de)電梯(ti)都(dou)沒有電源j限(xian)開(kai)(kai)關，筆者認為，可以就a全回(hui)路略作改動，即加裝上(shang)、下j限(xian)電氣開(kai)(kai)關串聯在a全回(hui)路中，拆除(chu)原j限(xian)開(kai)(kai)關。

2、漲(zhang)繩輪開(kai)關斷(duan)開(kai)引起停梯

像曳引繩一樣，限速器繩同樣會(hui)在使用過程中(zhong)伸(shen)長(chang)。由于底坑漲(zhang)(zhang)繩輪重錘(chui)的作(zuo)用，漲(zhang)(zhang)繩輪開關打板偏移，直到斷開開關導(dao)致停(ting)梯。

對于電梯安裝的新裝電梯，電梯安裝人員須每月檢查(cha)一(yi)次(ci)，運行一(yi)年以后，三個月檢查(cha)一(yi)次(ci)，如此即可防患(huan)于未然。由于廳門密封不嚴(yan)，井(jing)道(dao)有(you)墻(qiang)洞等各種原因，老鼠(shu)竄入井(jing)道(dao)時有(you)的會摔死，有(you)的掉入底坑因想(xiang)方設法逃出竄入繩輪而卡入其中，電梯向(xiang)下運行導致a全鉗開關動作(zuo)，有(you)的限速器(qi)開關也一(yi)起(qi)聯動。