A single phase transformer has total core loss of 1000 𝑊 at 420 𝑉 , 60 Hz and total core loss of 400 𝑊 at 210 𝑉 , 30 Hz . The total core loss at 350 𝑉 , 50 Hz will be nearly:
A. 593.4 𝑊
B. 685.4 𝑊
C. 777.8 𝑊
D. 869.8 𝑊
Answer:C
A single phase transformer has total core loss of 1000 𝑊 at 420 𝑉 , 60 Hz and total core loss of 400 𝑊 at 210 𝑉 , 30 Hz . The total core loss at 350 𝑉 , 50 Hz will be nearly:
A. 593.4 𝑊 B. 685.4 𝑊 C. 777.8 𝑊 D. 869.8 𝑊