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電(dian)能(neng)表是一種常(chang)(chang)用儀器，雖然(ran)有(you)關部門對它進行(xing)了重(zhong)點管理(li)，但是還(huan)有(you)可(ke)能(neng)出(chu)現(xian)某些故障，如計量偏(pian)差、鋁盤卡死、走(zou)字(zi)時快時慢(man)、運(yun)行(xing)時有(you)噪聲等。如果您有(you)一定的電(dian)氣(qi)常(chang)(chang)識，在日常(chang)(chang)使(shi)用中遇見(jian)一些小問題(ti)也能(neng)自(zi)行(xing)解決(jue)。但是，涉及表內結(jie)構問題(ti)，切莫自(zi)行(xing)啟封拆卸(xie)，應及時由(you)電(dian)力部門檢修處理(li)。本文針對多功能(neng)智能電表故障現象整理(li)了相關(guan)處理(li)方法(fa)

1、顯示器(qi)不顯，當電(dian)源電(dian)路(lu)經變(bian)壓器(qi)降壓方式供電(dian)時，可能存在的故障緣由(you)有：

① 由單相(xiang)變壓器(qi)供電(dian)，因而外(wai)部電(dian)路TV一次側熔斷(duan)件或(huo)低(di)壓小熔斷(duan)件熔斷(duan)，而且斷(duan)相(xiang)的(de)為電(dian)子電(dian)路的(de)工(gong)作電(dian)源相(xiang)時，造成顯示器(qi)不顯示。處置方式：恢復外(wai)部電(dian)路正(zheng)常供電(dian)。

② 因(yin)變(bian)壓(ya)(ya)器(qi)(qi)繞組泛(fan)起斷線(xian)或匝間短路(lu)對變(bian)壓(ya)(ya)器(qi)(qi)燒壞(huai)，造成(cheng)顯(xian)示(shi)器(qi)(qi)不顯(xian)示(shi)。處置方式：更換同規(gui)格的變(bian)壓(ya)(ya)器(qi)(qi)。

③ 變壓(ya)器(qi)插頭未與主(zhu)要線(xian)(xian)路(lu)印刷板(ban)連(lian)(lian)通(tong)，或工作電(dian)源的(de)連(lian)(lian)線(xian)(xian)斷(duan)。處置方式：將(jiang)變壓(ya)器(qi)插頭與主(zhu)要線(xian)(xian)路(lu)連(lian)(lian)通(tong)，或將(jiang)工作電(dian)源連(lian)(lian)線(xian)(xian)接好。

④ 當電(dian)源電(dian)路經(jing)阻容降壓方式(shi)(shi)供(gong)電(dian)時，電(dian)容擊穿可造成顯示器不顯示。處置方式(shi)(shi)：更(geng)換電(dian)容。

⑤ 當(dang)電源電路經過程開關電源的降壓方式供電時，穩(wen)壓管(guan)壞可造(zao)成(cheng)顯(xian)示(shi)器不顯(xian)示(shi)。處置方式：更換穩(wen)壓管(guan)。

2、數(shu)(shu)據或法式(shi)丟(diu)失，多功能(neng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表在斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)主要(yao)由后(hou)(hou)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源來維(wei)持時(shi)(shi)鐘(zhong)及一(yi)些寄存(cun)(cun)在RAM里的(de)(de)(de)(de)法式(shi)及數(shu)(shu)據。后(hou)(hou)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源系統由鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)（一(yi)般(ban)一(yi)節(jie)鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)在斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)后(hou)(hou)可連結法式(shi)和(he)(he)數(shu)(shu)據的(de)(de)(de)(de)時(shi)(shi)間(jian)少(shao)則半年，多則五(wu)年）和(he)(he)儲(chu)能(neng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)組成，有的(de)(de)(de)(de)僅(jin)有鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)或儲(chu)能(neng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)。假設全電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子多功能(neng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)表的(de)(de)(de)(de)年夜量(liang)數(shu)(shu)據及法式(shi)存(cun)(cun)儲(chu)于E2PROM中，斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)可無需(xu)消耗后(hou)(hou)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源，后(hou)(hou)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源僅(jin)提供給時(shi)(shi)鐘(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路，因(yin)而(er)消耗后(hou)(hou)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)容(rong)量(liang)很小。若將全電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子多功能(neng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)表的(de)(de)(de)(de)數(shu)(shu)據存(cun)(cun)儲(chu)于RAM中，則需(xu)要(yao)有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源維(wei)持才能(neng)保留數(shu)(shu)據，長時(shi)(shi)中斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)很快就會(hui)耗盡(jin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)容(rong)量(liang)，從而(er)造(zao)成數(shu)(shu)據和(he)(he)法式(shi)丟(diu)失。由后(hou)(hou)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源引發(fa)數(shu)(shu)據、法式(shi)丟(diu)失的(de)(de)(de)(de)常見故障有：

① 鋰電(dian)(dian)池電(dian)(dian)量耗盡，造成法(fa)式(shi)、數據丟(diu)失。處置(zhi)方(fang)式(shi)：更換電(dian)(dian)池，將(jiang)電(dian)(dian)能表(biao)重(zhong)新編(bian)程設置(zhi)。應非(fei)凡注重(zhong)：經實(shi)驗室調試的全(quan)電(dian)(dian)子(zi)多功能電(dian)(dian)能表(biao)應實(shi)時安裝于現場(chang)，避免持久斷電(dian)(dian)，耗盡后備電(dian)(dian)源(yuan)。

② 儲(chu)能電容(rong)漏電，以(yi)致停電時將數(shu)據(ju)、法(fa)式丟(diu)失。處置方式：更換電容(rong)。

③ 電(dian)池(chi)(chi)接頭接觸不良(liang)，或毗(pi)連電(dian)池(chi)(chi)的跨接器或焊塊開路，造(zao)成斷電(dian)后后備電(dian)源沒法(fa)供進，將表(biao)內法(fa)式、數據丟失。處置方式：重新毗(pi)連電(dian)池(chi)(chi)。