電動機(ji)綜合保(bao)護器原(yuan)理

·電動機(ji)綜(zong)合(he)保(bao)護器(qi)(qi)原理過(guo)流和過(guo)壓。綜(zong)合(he)保(bao)護器(qi)(qi)配(pei)合(he)交(jiao)流接觸器(qi)(qi)使(shi)用，【在正常工作(zuo)的線路(lu)中】保(bao)護器(qi)(qi)有(you)四個接線柱(zhu)，1，2是(shi)電源與(yu)接觸器(qi)(qi)線圈并聯，3，4是(shi)開關，串(chuan)聯在控制回路(lu)中即可。再用表測額定電流，調適保(bao)護器(qi)(qi)檢測電流，已達(da)到預期的效果(guo) 

；過載倍數小，動(dong)作時限長)進(jin)入保(bao)護狀態，結束則通(tong)過交流接(jie)觸器斷開電(dian)動(dong)機電(dian)源，保(bao)護電(dian)動(dong)機的安(an)全。 一、工作原(yuan)理 　　電(dian)動(dong)機綜合(he)保(bao)護器的電(dian)氣原(yuan)理圖見圖l，與(yu)電(dian)動(dong)機的配合(he)接(jie)線見圖2。圖l中，變壓(ya)器T二次側的15V電(dian)壓(ya)，

.電(dian)(dian)動(dong)機(ji)(ji)(ji)綜(zong)(zong)合(he)(he)保護器(qi)原(yuan)理與(yu)故障檢驗(yan)電(dian)(dian)路圖(tu)；過載倍數小，變頻(pin)器(qi)FTB-8-37G/45P應用(yong)行(xing)業(ye)，動(dong)作時限(xian)長)進進保護狀態，結束則(ze)通過交流接(jie)觸(chu)器(qi)斷開電(dian)(dian)動(dong)機(ji)(ji)(ji)電(dian)(dian)源(yuan)，保護電(dian)(dian)動(dong)機(ji)(ji)(ji)的安全。 一、工作原(yuan)理　　電(dian)(dian)動(dong)機(ji)(ji)(ji)綜(zong)(zong)合(he)(he)保護器(qi)的電(dian)(dian)氣(qi)原(yuan)理圖(tu)見圖(tu)l，與(yu)電(dian)(dian)動(dong)機(ji)(ji)(ji)的配合(he)(he)接(jie)線見圖(tu)2。圖(tu)l中(zhong)，

·電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)綜(zong)合(he)保護(hu)(hu)器(qi)(qi)（電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)保護(hu)(hu)器(qi)(qi)）電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)綜(zong)合(he)保護(hu)(hu)器(qi)(qi)（電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)保護(hu)(hu)器(qi)(qi)）是以金屬電(dian)(dian)(dian)(dian)(dian)(dian)阻電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)效(xiao)應(ying)原(yuan)(yuan)理(li)實現(xian)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)各種(zhong)保護(hu)(hu)的(de)，區別(bie)于(yu)熱繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)金屬電(dian)(dian)(dian)(dian)(dian)(dian)阻熱效(xiao)應(ying)原(yuan)(yuan)理(li)，也區別(bie)于(yu)穿(chuan)芯式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)綜(zong)合(he)保護(hu)(hu)器(qi)(qi)（電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)保護(hu)(hu)器(qi)(qi)）電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)互(hu)感(gan)器(qi)(qi)磁效(xiao)應(ying)原(yuan)(yuan)理(li)。其優點是1、體(ti)積(ji)少，方便實現(xian)與熱繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)互(hu)換。

·電(dian)(dian)(dian)動(dong)機保(bao)護(hu)器(qi)工作原(yuan)理(li)(li)電(dian)(dian)(dian)動(dong)機保(bao)護(hu)器(qi)設(she)(she)計原(yuan)理(li)(li) 電(dian)(dian)(dian)子式電(dian)(dian)(dian)動(dong)機保(bao)護(hu)器(qi)采(cai)用(yong)的軟件(jian)算法(fa)和可靠的硬件(jian)設(she)(she)計，對電(dian)(dian)(dian)動(dong)機的過載、斷相...淺談(tan)電(dian)(dian)(dian)動(dong)機保(bao)護(hu)器(qi)設(she)(she)計原(yuan)理(li)(li) 電(dian)(dian)(dian)子式電(dian)(dian)(dian)動(dong)機保(bao)護(hu)器(qi)采(cai)用(yong)的軟件(jian)算法(fa)和可靠的硬件(jian)

雙(shuang)金(jin)屬(shu)型保護(hu)器實際上是一種用(yong)雙(shuang)金(jin)屬(shu)片(pian)(pian)制成的(de)開關(guan)(guan)或繼電器，由于價格低(di)廉而(er)得到廣(guang)泛(fan)應用(yong)。雙(shuang)金(jin)屬(shu)片(pian)(pian)由兩層(ceng)(ceng)熱膨脹系數不(bu)同的(de)合金(jin)疊(die)合而(er)成，其中，膨脹系數較(jiao)大的(de)稱(cheng)為主動(dong)層(ceng)(ceng)；膨脹系數較(jiao)小的(de)稱(cheng)為被動(dong)層(ceng)(ceng)。由于兩層(ceng)(ceng)材料膨脹系數不(bu)同，雙(shuang)金(jin)屬(shu)片(pian)(pian)在溫度(du)(du)升高時(shi)會(hui)彎曲變(bian)形，而(er)溫度(du)(du)降低(di)后(hou)又會(hui)恢復原來的(de)樣子。人們利用(yong)這一現象(xiang)，制作出能夠在溫度(du)(du)下閉合或斷開的(de)開關(guan)(guan)。

對于(yu)壓縮機(ji)電(dian)機(ji)而言，當繞組溫(wen)度(du)(du)升高到(dao)一定溫(wen)度(du)(du)時(shi)（比(bi)如110℃），需要及(ji)時(shi)斷開電(dian)源，以(yi)防(fang)燒毀；而當溫(wen)度(du)(du)降低(di)到(dao)某個溫(wen)度(du)(du)（比(bi)如60℃）后又可自動復位(wei)，壓縮機(ji)恢復運轉。這就是雙金屬片保護器的(de)工作原理。

較的電子式電動機保護器（電機保護器），檢測元件一般采用電流互感器，且出現了穿芯式結構。自穿芯式電動機保護器（電機保護器）問世，由于同熱繼電器相比具有眾多優點，引起了電工界的濃厚興趣。 穿芯式結構不但具有使用方便，與主回路完全隔離，既不會影響主回路，又提高了自身的可靠性。同時，又了接線端子發熱的問題，且互換性好。但目前國內外一般只有大規格電動機保護器（電機保護器）采用穿芯式，而小規格只能采用接線式 河北秦皇島變頻器FTB-8-37G/45P應用行業-富田電氣由秦皇島富田電氣設備有限公司提供。秦皇島富田電氣設備有限公司是一家從事“秦皇島富田電氣設備有限公司”的公司。自成立以來，我們堅持以“誠信為本，穩健經營”的方針，勇于參與市場的良性競爭，使“FT100”品牌擁有良好口碑。我們堅持“服務至上，用戶至上”的原則，使富田電氣在儀器儀表中贏得了客戶的信任，樹立了良好的企業形象。 特別說明：本信息的圖片和資料僅供參考，歡迎聯系我們索取準確的資料，謝謝！