问答题

有一台额定容量S为100kVA，电压为3300／220V的单相变压器，高压绕组N₁为1000匝，求该变压器低压绕组的匝数N₂？一、二次侧的额定电流？若一次侧保持额定电压不变，二次侧达到额定电流，输出功率P为78kW，功率因数cosφ为0.8时，求出这时的二次侧端电压U₂。

答案：首先，根据变压器的原理，变压器的高压绕组和低压绕组的电压比等于它们的匝数比。所以，我们可以根据给定的高压绕组的匝数和电压...

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