GO Electrical
0 votes
A single-phase, $\text{4 kVA}$, $\text{200 V/100 V}$, $\text{50 Hz}$ transformer with laminated $\text{CRGO}$

steel core has rated no-load loss of $\text{450 W}$. When the high-voltage winding is
excited with $\text{160 V}$, $\text{40 Hz}$ sinusoidal ac supply, the no-load losses are found to be

$\text{320 W}$. When the high-voltage winding of the same transformer is supplied from

a $\text{100 V}$, $\text{25 Hz}$ sinusoidal ac source, the no-load losses will be

_____________________$\text{W}$ (rounded off to $2$ decimal places).
in new by (1.4k points)
edited by

Please log in or register to answer this question.

Welcome to GATE Overflow, Electrical, where you can ask questions and receive answers from other members of the community.

912 questions
38 answers
10 comments
27,462 users