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何工控學(xué)
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樓主  發(fā)表于: 2015-01-28 15:55
各位大師們，請問(wèn)三相380V接成三角形的發(fā)熱管，每根4KW，總是燒發(fā)熱管，漏電開(kāi)關(guān)動(dòng)作，有什么方法減少這種燒管的次數嗎？
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1樓  發(fā)表于: 2015-01-29 15:56
1}用加熱管的蒸飯車(chē)好多客戶(hù)在燒飯都是加自來(lái)水，加入水質(zhì)硬度高的時(shí)候就容易結垢導致加熱管“加熱爆裂”. 2)條件允許的話(huà)用軟化水或者自來(lái)水經(jīng)過(guò)過(guò)濾設備后在注入使用. 3)還有加熱管最好買(mǎi)質(zhì)量好的，不要貪便宜，水位一定要在安全水位.4）至于用三角形或者用星形接法那是會(huì )影響加熱煮飯時(shí)間，對接熱管的壽命也會(huì )延長(cháng)一點(diǎn)，（電壓最好在A(yíng)C380--400V間）
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