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1 有一150kVA之變壓器接電阻性負載,在2/3滿載時得最大效率為98%,則此變壓器的鐵損為若干?
A 160W
B 510W
C 750W
D 1020W

2/3滿載時輸出=150k×2/3=100kVA

銅損=鐵損時 有最大效率

損失=2Pc

98% = 100k100k+2Pc

98k+1.96Pc=100k

1.96PC = 2k

Pc=1020W