The eddy current loss and hysteresis loss of 1-\(\phi\), 100 kVA, 50 Hz transformer are 4 kW and 6 kW respectively. If frequency is increased by 10%, then total loss is
Show Hint
When $B_m$ is constant:
- Hysteresis loss scales linearly with frequency ($f$).
- Eddy current loss scales quadratically with frequency ($f^2$).
Always compute the proportional multipliers ($1.1$ and $1.21$) and apply them directly to the separate loss values.
{|c|c|c|}
Loss Type & Proportionality & New Value
Hysteresis & $\propto f$ & $6 \times 1.1 = 6.6$
Eddy Current & $\propto f^2$ & $4 \times 1.21 = 4.84$