問題詳情
一、某三相電路各相導線阻抗為（1+j3）Ω ，該電路供給兩個並聯之三相平衡負載。其中之一為 Y 接負載，各相負載阻抗為（20+j10）Ω ；另一個為 Δ 接負載，各相阻抗為（30-j15）Ω 。該導線之送電端為三相平衡 60Hz，208V 之線電壓。試求該三相平衡電壓源所輸出之有效功率與無效功率，以及 Y 接負載與 Δ 接負載各吸收之三相總有效功率與無效功率。（20 分）
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