瀏覽導航
瀏覽導航
用來保護(hu)線(xian)路(lu)和風機的過載及短(duan)路(lu)。
本電(dian)(dian)控(kong)箱電(dian)(dian)源為三相五線制供電(dian)(dian)，三相電(dian)(dian)源可上進，也(ye)可下進。接至電(dian)(dian)控(kong)箱底部的(de)端子排中(zhong)，裝設的(de)自動空氣(qi)開關QF作雙(shuang)速(su)風機短路保護，熱繼電(dian)(dian)器FR用(yong)作低速(su)過載(zai)保護。
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