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scw威偉
互幫互助，共建美好社會(huì )。給他人方便就等于方便了自己。
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樓主  發(fā)表于: 2012-04-13 10:53
有45個(gè)5.5KW一根的電熱管，電熱管是380V的，需要加熱到80度，就是空間大不然也不要這么大的功率，我看了我師父做的一個(gè)電柜，就只用了斷路器，接觸器，溫控表，這么大的功率這樣行嗎？我感覺(jué)這樣做不是很安全，請各位師父給點(diǎn)建議，斷路器接觸器要多大的，最好分幾組控制？
困難像彈簧，你強它就弱，你弱它就強！
daviddavid
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1樓  發(fā)表于: 2012-04-18 14:32
45組5.5KW,工作電壓為380V的發(fā)熱管,如果在配電房已經(jīng)在設計那時(shí)一組線(xiàn)可以支持這個(gè)設備，總開(kāi)關(guān)用300A，入設備后有條件再將15個(gè)三角形接法的發(fā)熱管分開(kāi)兩組電箱進(jìn)行控制。

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