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slgk2012
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樓主  發(fā)表于: 2013-09-01 10:23
圖片：
兩種加熱管分別為：220V和110V，功率都為1.2KW，請問(wèn)用這兩種加熱管有什么區別，電流、發(fā)熱量是否一樣？
對于那些公式我也知道，對稱(chēng)三相交流家用電器功率的計算方法是:
有功功率(W)P=跟號3*電流*交流電壓*功率因素(COS)
無(wú)功功率(VAR)Q=跟號3*電流*交流電壓*功率因素(SIN)
視在功率(VA)S=跟號3*電流*交流電壓
但我想問(wèn)的是，兩種加熱管可否替換，比如6根220v的可否換成6根110v的？
[ 此帖被slgk2012在2013-09-01 11:01重新編輯 ]

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