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【简答题】
一车间所消耗的有功功率为420kW，λ=0.65。其中两台三相异步电动机的输入功率和功率因数分别为P 1 =91kW，λ 1 =0.625；P 2 =60kW，λ 2 =0.641。现拟用两台处于状态的三相同步电动机分别取代上述两台三相异步电动机，以使该车间的功率因数提高到接近于1。试分别计算出两台同步电动机各自需要的视在功率。
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