图示变压器,一次额定电压U1N = 220V,—次额定电流I1N = 11A,二

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问题 图示变压器,一次额定电压U1N = 220V,—次额定电流I1N = 11A,二次额定电压U2N = 600V。该变压器二次额定值I2N约为:A. 1A B. 4A C. 7

选项 A D. 11A

答案B

解析提示:该题可以按理想变压器分析(即变压器内部的损耗为0),则[img]/upload/tiku/131/603945_1.jpg[/img]
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