廠商性質：經銷商

所在地：上海市

更新時間：2024-06-11

產品簡介：

西門子直流調速裝置工作幾分鐘報警；恒稅電氣修直流超(chao)過(guo)十年，技(ji)術(shu)成(cheng)熟，配件齊，修完都會第二次試機保證拿回去裝上正常使用。

西門子直流調速裝置由(you)(you)主回路(lu)、電源(yuan)回路(lu)、IPM驅動及保護回路(lu)、冷(leng)卻風扇(shan)等幾(ji)部分組成(cheng)。其(qi)結構多為單元化(hua)或模(mo)塊(kuai)化(hua)形式。由(you)(you)于(yu)使(shi)用方法不(bu)正確或設置環境不(bu)合理，將容易造成(cheng)變頻器誤(wu)動作及發(fa)生故障，或者(zhe)無法滿足預(yu)期(qi)的(de)運(yun)行效果。為防患于(yu)未然，事先對故障原因(yin)進行認真分析尤(you)為重要。

西門子直流調速裝(zhuang)置主回路常(chang)見故(gu)障分析

??主(zhu)回(hui)路主(zhu)要(yao)由(you)三相或單相整流(liu)(liu)橋、平滑電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)、濾波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)、IPM逆變橋、限流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻、接(jie)觸器(qi)(qi)(qi)等元件組(zu)成(cheng)。其中(zhong)許多(duo)常見故障是由(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容引起(qi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容的(de)壽命(ming)主(zhu)要(yao)由(you)加在其兩(liang)端的(de)直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和內部溫(wen)度所決定，在回(hui)路設計時已經選(xuan)定了電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)的(de)型號，所以(yi)內部的(de)溫(wen)度對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)的(de)壽命(ming)起(qi)決定作用。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)會直接(jie)影響到(dao)變頻器(qi)(qi)(qi)的(de)使用壽命(ming)，一(yi)般溫(wen)度每上升10 ℃，壽命(ming)減(jian)(jian)半。因此一(yi)方面在安裝時要(yao)考慮適(shi)當的(de)環境溫(wen)度，另一(yi)方面可以(yi)采取(qu)措(cuo)施減(jian)(jian)少脈動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。采用改善(shan)功率因數的(de)交流(liu)(liu)或直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)(qi)可以(yi)減(jian)(jian)少脈動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，從而延(yan)長電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)的(de)壽命(ming)。

??在(zai)電(dian)容器維護時，通常以比(bi)較容易測量的靜電(dian)容量來判(pan)斷電(dian)解(jie)電(dian)容器的劣化情況，當靜電(dian)容量低于額定值的80%，絕(jue)緣阻(zu)抗(kang)在(zai)5 MΩ以下(xia)時，應考慮更換電(dian)解(jie)電(dian)容器。

西(xi)門子直(zhi)流調速(su)裝置主回路典型(xing)故(gu)障(zhang)分析

??故障現象：變頻器在(zai)加速、減速或正常運行時出現過電流跳(tiao)閘(zha)。

??首(shou)先應區(qu)分是(shi)(shi)(shi)由(you)于(yu)負載(zai)原因，還是(shi)(shi)(shi)西門子變頻(pin)(pin)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)原因引起(qi)的(de)(de)(de)(de)(de)(de)。如(ru)果是(shi)(shi)(shi)變頻(pin)(pin)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)故(gu)障，可(ke)通過(guo)歷史記錄查(cha)詢(xun)在跳閘時(shi)(shi)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，超過(guo)了變頻(pin)(pin)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)額(e)定電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)或(huo)(huo)電(dian)(dian)(dian)(dian)(dian)子熱(re)繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)設定值，而(er)三相電(dian)(dian)(dian)(dian)(dian)壓和電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)是(shi)(shi)(shi)平衡(heng)的(de)(de)(de)(de)(de)(de)，則(ze)應考慮(lv)是(shi)(shi)(shi)否(fou)有過(guo)載(zai)或(huo)(huo)突變，如(ru)電(dian)(dian)(dian)(dian)(dian)機堵轉(zhuan)等。在負載(zai)慣性較大時(shi)(shi)，可(ke)適當延長加(jia)速(su)時(shi)(shi)間，此過(guo)程對變頻(pin)(pin)器(qi)(qi)(qi)本身并無損壞。若(ruo)跳閘時(shi)(shi)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，在變頻(pin)(pin)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)額(e)定電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)或(huo)(huo)在電(dian)(dian)(dian)(dian)(dian)子熱(re)繼電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)設定范圍(wei)內，可(ke)判(pan)斷是(shi)(shi)(shi)IPM模(mo)(mo)塊(kuai)或(huo)(huo)相關部分發生故(gu)障。首(shou)先可(ke)以通過(guo)測量變頻(pin)(pin)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)主回路(lu)輸出端(duan)子U、V、W， 分別與直(zhi)流(liu)(liu)(liu)側(ce)的(de)(de)(de)(de)(de)(de)P、N端(duan)子之間的(de)(de)(de)(de)(de)(de)正反(fan)向電(dian)(dian)(dian)(dian)(dian)阻，來判(pan)斷IPM模(mo)(mo)塊(kuai)是(shi)(shi)(shi)否(fou)損壞。如(ru)模(mo)(mo)塊(kuai)未損壞，則(ze)是(shi)(shi)(shi)驅(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)出了故(gu)障。如(ru)果減速(su)時(shi)(shi)IPM模(mo)(mo)塊(kuai)過(guo)流(liu)(liu)(liu)或(huo)(huo)變頻(pin)(pin)器(qi)(qi)(qi)對地短路(lu)跳閘，一般(ban)是(shi)(shi)(shi)逆變器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)上半(ban)橋的(de)(de)(de)(de)(de)(de)模(mo)(mo)塊(kuai)或(huo)(huo)其驅(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)故(gu)障；而(er)加(jia)速(su)時(shi)(shi)IPM模(mo)(mo)塊(kuai)過(guo)流(liu)(liu)(liu)，則(ze)是(shi)(shi)(shi)下(xia)半(ban)橋的(de)(de)(de)(de)(de)(de)模(mo)(mo)塊(kuai)或(huo)(huo)其驅(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)部分故(gu)障，發生這些故(gu)障的(de)(de)(de)(de)(de)(de)原因，多是(shi)(shi)(shi)由(you)于(yu)外部灰(hui)塵進入(ru)變頻(pin)(pin)器(qi)(qi)(qi)內部或(huo)(huo)環境潮(chao)濕(shi)引起(qi)。

西(xi)門子直(zhi)流調速裝置控制回路故障分析

??控制回(hui)路(lu)(lu)影響(xiang)變頻器(qi)(qi)(qi)壽命(ming)的(de)(de)是(shi)電(dian)(dian)源部分，是(shi)平滑電(dian)(dian)容(rong)器(qi)(qi)(qi)和(he)(he)IPM電(dian)(dian)路(lu)(lu)板中(zhong)(zhong)的(de)(de)緩沖電(dian)(dian)容(rong)器(qi)(qi)(qi)，其原理(li)與前(qian)述(shu)相同，但這里的(de)(de)電(dian)(dian)容(rong)器(qi)(qi)(qi)中(zhong)(zhong)通(tong)過(guo)的(de)(de)脈動電(dian)(dian)流，是(shi)基本(ben)不(bu)受主(zhu)回(hui)路(lu)(lu)負載(zai)影響(xiang)的(de)(de)定值，故其壽命(ming)主(zhu)要由溫度(du)和(he)(he)通(tong)電(dian)(dian)時間決定。由于電(dian)(dian)容(rong)器(qi)(qi)(qi)都焊接在電(dian)(dian)路(lu)(lu)板上(shang)，通(tong)過(guo)測量靜電(dian)(dian)容(rong)量來判斷劣化情況比較困難(nan)，一般根據電(dian)(dian)容(rong)器(qi)(qi)(qi)環境溫度(du)以及(ji)使用時間，來推算是(shi)否(fou)接近(jin)其使用壽命(ming)。

??電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)板給(gei)控制回路(lu)(lu)、IPM驅動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)和表(biao)面(mian)操作顯示板以及風扇(shan)等提供電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，這些電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)一(yi)般都是從主電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)輸(shu)出的(de)直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓，通(tong)過開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)再分別整(zheng)流(liu)而得(de)到的(de)。因此，某一(yi)路(lu)(lu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)短路(lu)(lu)，除了本路(lu)(lu)的(de)整(zheng)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)受損(sun)外，還可能影響其他部分的(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，如由于誤操作而使控制電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)與公共接地短接，致使電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)板上開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)部分損(sun)壞，風扇(shan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)短路(lu)(lu)導致其他電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)斷電(dian)(dian)(dian)(dian)(dian)(dian)等。一(yi)般通(tong)過觀察(cha)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)板就比較容(rong)易發現。

西門子直流調速裝置工作幾分鐘報警；恒稅(shui)電(dian)氣(qi)修直(zhi)流(liu)超(chao)過十年，技術(shu)成熟，配件齊其他(ta)故(gu)障(zhang)修復包括；上電(dian)跳閘，開機(ji)炸可(ke)控硅，模(mo)塊壞，IGBT燒(shao)(shao)，運行幾分鐘報(bao)警，無法(fa)復位，通(tong)電(dian)燒(shao)(shao)保險，無勵(li)磁電(dian)壓，報(bao)勵(li)磁故(gu)障(zhang)，勵(li)磁過流(liu)，速度(du)不可(ke)控維(wei)修，超(chao)速維(wei)修，帶(dai)負載報(bao)故(gu)障(zhang)維(wei)修，冷(leng)卻風機(ji)壞維(wei)修，散熱(re)風扇壞維(wei)修，直(zhi)流(liu)調速裝(zhuang)置風扇原廠(chang)出(chu)售，主(zhu)板銷售，脈沖觸發板銷售，轉速度(du)不穩定維(wei)修，可(ke)控硅晶閘管燒(shao)(shao)維(wei)修，直(zhi)流(liu)調速裝(zhuang)置無顯示維(wei)修