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1 有一台2200V/110V、50kVA的三相變壓器,銘牌上註明其電抗為10%,則換算至高壓側每相之實際電抗值應為若干Ω?
A 193.6Ω
B 9.68Ω
C 0.484Ω
D 0.0242Ω

基準阻抗 Zb = Vb2/Sb = 22002/50×103=96.8Ω

實際電抗 X1= Zb × X% = 96.8 × 10%= 9.68Ω