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Apr 15, 2024 · 3相380v30kw用65A左右的空开,建议选择63A或者80A。 30KW,假设三相电压为380V,功率因数为0.9,其电流约为50.65A如果负载为电机、电磁阀、变压器等感性负载,则
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380V三相电30kw要用多大的空开合适？_百度知道
Sep 22, 2024 · 因此,对于30KW的功率,选择100A的空开是合适的。 这个选择可以确保在设备正常运行时,空开不会误动作,同时在设备出现过载或短路时,空开能够迅速断开电路,保护设
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30千瓦需要多少平方的电线？_百度知道
Dec 15, 2018 · 5、三相380V50HZ的30KW额定电流在56A左右,电源线应该不小于16平方的铜芯线。 6、简单计算方法： 每平方毫米铜线可以通过6~7A的电流,每平方毫米的铝线可以通
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30kw用多大电缆
Apr 11, 2025 · 30kw用多大电缆30KW的设备在380V电压下,应选用至少10平方毫米的电缆。 以下是详细分析：电流计算：根据三相电功率计算公式P=√3UIcosa,30KW设备的电
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30kw用多大的电缆
May 28, 2025 · 30kw用多大的电缆30KW的设备在380V电压下,应使用10.725平方毫米及以上的电缆。 以下是具体分析：电流计算：首先,根据三相电功率计算公式P=√3UIcosa,可以计算
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