2020年6月13日民用燃氣表電機閥電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)匹配問題，通過(guo)開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)對現場(chang)的(de)(de)(de)(de)9只電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)供電(dian)(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)(dian)壓是(shi)(shi)24V的(de)(de)(de)(de)開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，利用(yong)(yong)共線(xian)同時(shi)給(gei)9只電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)供電(dian)(dian)(dian)(dian)(dian)(dian)，也就(jiu)(jiu)是(shi)(shi)加一個(ge)控(kong)制信號來控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)的(de)(de)(de)(de)動(dong)作(zuo)。但為什么(me)經常電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)不(bu)能(neng)動(dong)作(zuo)？是(shi)(shi)什么(me)原(yuan)因？電(dian)(dian)(dian)(dian)(dian)(dian)纜線(xian)長230米，是(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)1.5方(fang)的(de)(de)(de)(de)線(xian)，這就(jiu)(jiu)不(bu)難理解為什么(me)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)不(bu)能(neng)動(dong)作(zuo)，選用(yong)(yong)24V的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)壓時(shi)，就(jiu)(jiu)需要(yao)考慮其損耗(hao)(hao)，電(dian)(dian)(dian)(dian)(dian)(dian)纜線(xian)太細，太長損耗(hao)(hao)就(jiu)(jiu)會過(guo)大，當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)輸送(song)到電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)線(xian)圈(quan)時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)壓只有16V，已經低于正(zheng)常開(kai)啟的(de)(de)(de)(de)20V，導致電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)線(xian)圈(quan)不(bu)能(neng)正(zheng)常動(dong)作(zuo)，還有就(jiu)(jiu)是(shi)(shi)9支電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)一起動(dong)作(zuo)，這樣就(jiu)(jiu)必須保證輸送(song)到電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)端的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)功率。

    故障(zhang)(zhang)(zhang)(zhang)現(xian)(xian)象(xiang)：給(gei)電(dian)(dian)動(dong)執(zhi)行(xing)機通電(dian)(dian)后發現(xian)(xian)電(dian)(dian)源指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)不亮，伺(si)(si)放(fang)(fang)板無反(fan)饋(kui)，給(gei)信(xin)號不動(dong)作(zuo)。故障(zhang)(zhang)(zhang)(zhang)判(pan)斷和檢修過(guo)程：因電(dian)(dian)源指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)不亮，首先檢查(cha)保險(xian)管是否開(kai)(kai)(kai)(kai)(kai)(kai)路(lu)(lu)，經檢查(cha)保險(xian)管完好，綜合(he)故障(zhang)(zhang)(zhang)(zhang)現(xian)(xian)象(xiang)，可(ke)以推(tui)斷故障(zhang)(zhang)(zhang)(zhang)有可(ke)能發生在伺(si)(si)放(fang)(fang)板的電(dian)(dian)源部分,接著檢查(cha)電(dian)(dian)源指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)，用萬用表(biao)檢測發現(xian)(xian)指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)開(kai)(kai)(kai)(kai)(kai)(kai)路(lu)(lu)，更換(huan)指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)故障(zhang)(zhang)(zhang)(zhang)排除(chu)(chu)。結論：電(dian)(dian)源指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)開(kai)(kai)(kai)(kai)(kai)(kai)路(lu)(lu)會造(zao)成(cheng)整個伺(si)(si)放(fang)(fang)板不工作(zuo)。故障(zhang)(zhang)(zhang)(zhang)現(xian)(xian)象(xiang)：電(dian)(dian)動(dong)執(zhi)行(xing)器的執(zhi)行(xing)機構通電(dian)(dian)后，給(gei)信(xin)號開(kai)(kai)(kai)(kai)(kai)(kai)可(ke)以，關(guan)(guan)不動(dong)作(zuo)。故障(zhang)(zhang)(zhang)(zhang)判(pan)斷和檢修過(guo)程：先仔細檢查(cha)反(fan)饋(kui)線(xian)路(lu)(lu)，確認反(fan)饋(kui)信(xin)號無故障(zhang)(zhang)(zhang)(zhang)，給(gei)開(kai)(kai)(kai)(kai)(kai)(kai)信(xin)號時開(kai)(kai)(kai)(kai)(kai)(kai)指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)亮，說(shuo)明開(kai)(kai)(kai)(kai)(kai)(kai)正常，給(gei)關(guan)(guan)信(xin)號時關(guan)(guan)指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)不亮，說(shuo)明關(guan)(guan)可(ke)控硅部分有問題，首先檢查(cha)關(guan)(guan)指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)，用萬用表(biao)檢測發現(xian)(xian)關(guan)(guan)指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)開(kai)(kai)(kai)(kai)(kai)(kai)路(lu)(lu)，將其更換(huan)后故障(zhang)(zhang)(zhang)(zhang)排除(chu)(chu)。結論：關(guan)(guan)和開(kai)(kai)(kai)(kai)(kai)(kai)指(zhi)(zhi)(zhi)示(shi)(shi)(shi)(shi)燈(deng)(deng)(deng)(deng)不亮(開(kai)(kai)(kai)(kai)(kai)(kai)路(lu)(lu))時可(ke)控硅不動(dong)作(zuo)。

    故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)現(xian)(xian)(xian)(xian)象：執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)通電(dian)(dian)(dian)后(hou)，給(gei)定一個(ge)信號例(li)75%，執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)會全(quan)開到(dao)底，然后(hou)回到(dao)指定位置75%。故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)判斷(duan)(duan)和檢修過程(cheng)：根據以上(shang)(shang)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)現(xian)(xian)(xian)(xian)象，首先(xian)(xian)要判斷(duan)(duan)是(shi)伺(si)放板和執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)那(nei)一個(ge)有(you)問(wen)題(ti)。將伺(si)放板從執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)上(shang)(shang)拆下，直(zhi)接將電(dian)(dian)(dian)源線接到(dao)2和4端(duan)子上(shang)(shang)，執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)關方向動作(zuo)，將電(dian)(dian)(dian)源線接到(dao)2和3端(duan)子上(shang)(shang)，執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)開方向動作(zuo)，如果執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)動作(zuo)不正(zheng)常(chang)，說明故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)在執(zhi)(zhi)(zhi)行(xing)器上(shang)(shang)。用萬用表測(ce)電(dian)(dian)(dian)機(ji)(ji)繞(rao)組正(zheng)常(chang)，再測(ce)電(dian)(dian)(dian)容(rong)(rong)兩邊的電(dian)(dian)(dian)阻(zu)(zu)發(fa)現(xian)(xian)(xian)(xian)有(you)一個(ge)開路，將其更換(huan)后(hou)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)排除。結論：遇到(dao)以上(shang)(shang)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)現(xian)(xian)(xian)(xian)象時(shi)，首先(xian)(xian)要判斷(duan)(duan)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)發(fa)生(sheng)在那(nei)一個(ge)部分上(shang)(shang)，最后(hou)確定根源。故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)現(xian)(xian)(xian)(xian)象：執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)通電(dian)(dian)(dian)后(hou)給(gei)關信號執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)先(xian)(xian)全(quan)開后(hou)再全(quan)關。故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)判斷(duan)(duan)和檢修過程(cheng)：先(xian)(xian)拆除伺(si)放板，直(zhi)接給(gei)執(zhi)(zhi)(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)通電(dian)(dian)(dian)發(fa)現(xian)(xian)(xian)(xian)仍然存(cun)在原故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)，檢查電(dian)(dian)(dian)阻(zu)(zu)，電(dian)(dian)(dian)阻(zu)(zu)阻(zu)(zu)值正(zheng)常(chang)，說明電(dian)(dian)(dian)阻(zu)(zu)沒(mei)問(wen)題(ti)，檢查電(dian)(dian)(dian)機(ji)(ji)繞(rao)組，發(fa)現(xian)(xian)(xian)(xian)阻(zu)(zu)值正(zheng)常(chang)，電(dian)(dian)(dian)機(ji)(ji)沒(mei)問(wen)題(ti)。由此故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)推斷(duan)(duan)有(you)可能電(dian)(dian)(dian)容(rong)(rong)壞，重新更換(huan)電(dian)(dian)(dian)容(rong)(rong)，故(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)排除。結論：出現(xian)(xian)(xian)(xian)該問(wen)題(ti)時(shi)首先(xian)(xian)懷疑電(dian)(dian)(dian)阻(zu)(zu)和電(dian)(dian)(dian)容(rong)(rong)。

    故(gu)障(zhang)現(xian)象(xiang)：現(xian)場只要(yao)送AC220V電(dian)源，保護(hu)開關(guan)立即跳閘執(zhi)行機(ji)構伺(si)(si)放保險(xian)已(yi)(yi)燒。故(gu)障(zhang)判(pan)斷和(he)檢修過程(cheng)：首先用萬(wan)用表檢測執(zhi)行機(ji)構上(shang)的(de)(de)電(dian)機(ji)繞組(zu)(zu)，發現(xian)電(dian)機(ji)繞組(zu)(zu)的(de)(de)電(dian)阻趨向(xiang)于零，說(shuo)明(ming)電(dian)機(ji)已(yi)(yi)短路，再檢測抱(bao)(bao)閘兩端(duan)電(dian)阻，電(dian)阻趨向(xiang)于無窮大，說(shuo)明(ming)抱(bao)(bao)閘已(yi)(yi)壞，正常應是1.45K左右。最終(zhong)的(de)(de)處理辦法是：更換新的(de)(de)抱(bao)(bao)閘和(he)電(dian)機(ji)，把(ba)伺(si)(si)放板的(de)(de)保險(xian)管裝上(shang)，重新調試，恢復正常運作。結論(lun)：遇到(dao)以上(shang)故(gu)障(zhang)現(xian)象(xiang)時，首先要(yao)判(pan)斷故(gu)障(zhang)發生在那(nei)一個部分上(shang)，最后確定(ding)根源。

    故障現象：無論現場給什么(me)信號電(dian)(dian)機(ji)(ji)(ji)都(dou)(dou)不動(dong)作(zuo)，故障判(pan)斷和檢(jian)修(xiu)過程(cheng)：直接在(zai)電(dian)(dian)機(ji)(ji)(ji)繞組(zu)間(jian)通(tong)(tong)電(dian)(dian)，電(dian)(dian)機(ji)(ji)(ji)也不傳，抱閘拆(chai)下(xia)通(tong)(tong)電(dian)(dian)電(dian)(dian)機(ji)(ji)(ji)還是不轉，檢(jian)測(ce)電(dian)(dian)機(ji)(ji)(ji)繞組(zu)阻值均正(zheng)常，手輪搖執行機(ji)(ji)(ji)構(gou)(gou)動(dong)作(zuo)正(zheng)常。檢(jian)測(ce)的(de)(de)結果都(dou)(dou)正(zheng)常就是通(tong)(tong)電(dian)(dian)時電(dian)(dian)機(ji)(ji)(ji)不轉，此時懷疑電(dian)(dian)機(ji)(ji)(ji)的(de)(de)轉子，把(ba)電(dian)(dian)機(ji)(ji)(ji)拆(chai)開，發現轉子用手都(dou)(dou)擰不動(dong)，原來轉子和電(dian)(dian)機(ji)(ji)(ji)端蓋之間(jian)已有一層堅(jian)固(gu)的(de)(de)灰，把(ba)這(zhe)層灰清(qing)除之后，加(jia)上一點潤(run)滑油，用手就可以擰動(dong)了。重(zhong)新把(ba)電(dian)(dian)機(ji)(ji)(ji)裝(zhuang)好并(bing)與執行機(ji)(ji)(ji)構(gou)(gou)配合(he)裝(zhuang)上，通(tong)(tong)電(dian)(dian)正(zheng)常，重(zhong)新調試(shi)。