220v转380v耗电量是否变大? 用220v转380v费电吗
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电量有变化,会多用电,会多用多少电取决于变压器,变压器的转换效率,静态耗损等。比如变压器的转换效率是90%,那么输入100度电,输出只能输出90度电,那就有10度电耗损在变压器上了首先说明的是,220v是单相,380v是三相,要是接空调,220v单相的肯定是没有三相380v空调效率高,省电。
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