瀏覽導航
瀏覽導航
用來(lai)保(bao)護線路和風機的過(guo)載(zai)及短路。
本電(dian)(dian)控(kong)箱(xiang)(xiang)電(dian)(dian)源為(wei)三相五線制供電(dian)(dian)，三相電(dian)(dian)源可上(shang)進(jin)，也可下進(jin)。接至電(dian)(dian)控(kong)箱(xiang)(xiang)底部的端子(zi)排中，裝(zhuang)設的自動空氣開關QF作(zuo)雙速(su)風(feng)機短路保(bao)護，熱繼電(dian)(dian)器FR用作(zuo)低(di)速(su)過載保(bao)護。
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