Positive SSL
1 有一單相變壓器,二次側額定電壓為200V,額定電流為80A,等值阻抗為0.03Ω,則其百分阻抗Z%為
A 0.75%
B 1.5%
C 1.2%
D 2.4%

基準阻抗Zb =Vb/Ib=200/80=2.5Ω

百分阻抗Z%=Z/Zb=0.03/2.5=1.2%