EOCR-3DE馬達保護器常見的五大類型介紹
點擊次數：439 更新時間：2023-03-19
EOCR-3DE馬達保護器基(ji)于(yu)電(dian)(dian)(dian)機保(bao)護MCU微處理器(qi)(qi)，具有過電(dian)(dian)(dian)流(liu)、低電(dian)(dian)(dian)流(liu)、缺相、堵轉、反(fan)轉、失速、電(dian)(dian)(dian)流(liu)不平衡和超(chao)負載提示信號輸出功能，EOCR-3DE電(dian)(dian)(dian)機保(bao)護器(qi)(qi)本體(ti)自帶三相電(dian)(dian)(dian)流(liu)互感(gan)器(qi)(qi)可檢測0.1-60A范圍(wei)內的電(dian)(dian)(dian)流(liu)值(zhi)，外配電(dian)(dian)(dian)流(liu)互感(gan)器(qi)(qi)可達960A。EOCR-3DE電(dian)(dian)(dian)流(liu)時間特性(xing)可選(xuan)擇定(ding)時限或(huo)反(fan)時限，根據現(xian)場(chang)需求實際選(xuan)擇，當選(xuan)擇為反(fan)時*，本體(ti)電(dian)(dian)(dian)流(liu)保(bao)護范圍(wei)0.1-10A。
EOCR-3DE馬達保護器的常見類型：
1、熱繼電(dian)器：普通小(xiao)容(rong)量交(jiao)流電(dian)機，良好工作條件，不存在頻(pin)繁啟(qi)動等惡劣工況(kuang)，由于精度差(cha)，可靠性不能保證，不推薦使(shi)用。
2、電(dian)子型：檢(jian)測三相電(dian)流值，整定電(dian)流值采(cai)用(yong)(yong)電(dian)位(wei)器旋鈕或拔(ba)碼開關(guan)操作，電(dian)路一般采(cai)用(yong)(yong)模擬式，采(cai)用(yong)(yong)反時(shi)限(xian)或定時(shi)限(xian)工作特性。保護(hu)(hu)功(gong)能包括(kuo)過載、缺相、堵轉(zhuan)等故障保護(hu)(hu)，故障類型采(cai)用(yong)(yong)指示燈顯(xian)示，運行電(dian)量(liang)采(cai)用(yong)(yong)數碼管(guan)顯(xian)示。
3、智(zhi)能型：檢測三相電(dian)流(liu)值(zhi)，保(bao)護(hu)(hu)器使(shi)用(yong)(yong)(yong)(yong)單片機(ji)，實現電(dian)動機(ji)智(zhi)能化綜(zong)合保(bao)護(hu)(hu)，集保(bao)護(hu)(hu)、測量、通訊、顯示(shi)為一體(ti)。整定電(dian)流(liu)采(cai)(cai)用(yong)(yong)(yong)(yong)數(shu)字設(she)定，通過操(cao)作面板按鈕來操(cao)作，用(yong)(yong)(yong)(yong)戶(hu)可以根據自己實際使(shi)用(yong)(yong)(yong)(yong)要求和保(bao)護(hu)(hu)情況在現場(chang)自行對(dui)各種(zhong)參數(shu)修正設(she)定，采(cai)(cai)用(yong)(yong)(yong)(yong)數(shu)碼管作為顯示(shi)窗口，或采(cai)(cai)用(yong)(yong)(yong)(yong)大屏幕液晶(jing)顯示(shi)，能支持多種(zhong)通訊協議(yi)，如ModBUS、ProfiBUS等，價(jia)格相對(dui)高(gao)些(xie)，用(yong)(yong)(yong)(yong)于較(jiao)重(zhong)要場(chang)合，目前高(gao)壓電(dian)動機(ji)保(bao)護(hu)(hu)均采(cai)(cai)用(yong)(yong)(yong)(yong)智(zhi)能型。
4、熱保(bao)護(hu)型：在(zai)電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)中埋入熱元件(jian)，根據電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)的溫(wen)度(du)進行(xing)保(bao)護(hu)，保(bao)護(hu)效果好，但(dan)電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)容量較大(da)時，需與電(dian)(dian)(dian)流監(jian)測型配(pei)合使用，避免電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)堵轉時溫(wen)度(du)急劇上升，由于測溫(wen)元件(jian)的滯后(hou)性(xing)，導致電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)繞組受損(sun)。
5、磁場(chang)溫(wen)度檢測型(xing)：在(zai)電動(dong)機中埋入磁場(chang)檢測線圈和(he)溫(wen)度探頭(tou)，根據電動(dong)機內部旋(xuan)轉磁場(chang)的變化和(he)溫(wen)度的變化進行保(bao)護，主要功能(neng)包(bao)括(kuo)過載、堵(du)轉、缺相、過熱保(bao)護和(he)磨損監測，保(bao)護功能(neng)完善，缺點是需在(zai)電動(dong)機內部安(an)裝磁場(chang)檢測線圈和(he)溫(wen)度傳(chuan)感器。
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