恒流(liu)源主要用于檢測(ce)熱繼電器、塑殼斷路(lu)(lu)器、小(xiao)型短(duan)路(lu)(lu)器及需(xu)要設(she)定(ding)額定(ding)電流(liu)、動(dong)作電流(liu)、短(duan)路(lu)(lu)保護電流(liu)等(deng)生產場合。恒流(liu)大(da)功率直(zhi)流(liu)電源 輸出電流(liu)的(de)大(da)小(xiao)與負載的(de)大(da)小(xiao)無關，其主控量是“電流(liu)”。該(gai)電源應用在(zai)電除塵器上，與“電壓(ya)源”相比(bi)具備很多優點。

　　恒(heng)(heng)流源(yuan)在(zai)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)上(shang)的供電(dian)(dian)(dian)特性呈(cheng)“正反(fan)饋”工作，即電(dian)(dian)(dian)源(yuan)輸出(chu)電(dian)(dian)(dian)功率(lv)大(da)小與除(chu)塵(chen)(chen)(chen)器(qi)所需電(dian)(dian)(dian)功率(lv)大(da)小成正比關系；如當除(chu)塵(chen)(chen)(chen)器(qi)某(mou)時(shi)(shi)刻(ke)粉(fen)塵(chen)(chen)(chen)濃度變大(da)，要除(chu)塵(chen)(chen)(chen)器(qi)保持(chi)除(chu)塵(chen)(chen)(chen)效(xiao)率(lv)不變則(ze)需要給除(chu)塵(chen)(chen)(chen)器(qi)供電(dian)(dian)(dian)的高壓電(dian)(dian)(dian)源(yuan)在(zai)該時(shi)(shi)刻(ke)同步(bu)增(zeng)(zeng)大(da)輸出(chu)功率(lv)；正由于(yu)恒(heng)(heng)流源(yuan)輸出(chu)電(dian)(dian)(dian)流恒(heng)(heng)定(ding)，而輸出(chu)電(dian)(dian)(dian)壓隨負載(zai)大(da)小變化而變化，當粉(fen)塵(chen)(chen)(chen)濃度變大(da)時(shi)(shi)，則(ze)恒(heng)(heng)流電(dian)(dian)(dian)源(yuan)輸出(chu)電(dian)(dian)(dian)壓也同步(bu)增(zeng)(zeng)大(da)，所反(fan)應在(zai)除(chu)塵(chen)(chen)(chen)器(qi)上(shang)即電(dian)(dian)(dian)源(yuan)輸出(chu)電(dian)(dian)(dian)功率(lv)是(shi)同步(bu)增(zeng)(zeng)大(da)。而正是(shi)由于(yu)恒(heng)(heng)流電(dian)(dian)(dian)源(yuan)對除(chu)塵(chen)(chen)(chen)器(qi)來說是(shi)正反(fan)饋工作，所以該電(dian)(dian)(dian)源(yuan)適應工況能力強，運行穩定(ding)，且能長期保持(chi)高沉積(ji)效(xiao)率(lv)。