Question

An 18.65-kW, 4-pole, 50-Hz, 3-phase induction motor has friction and windage losses of 2.5 percent of the output. The full-load slip is 4%. (a) Determine the friction and windage loss.

Answer 1

0.47 kW

Step-by-step explanation:

`P_(out) = 18.65kW`

The friction and windage losses is given to be 2.5% of
`P_(out)`

Therefore, the friction and windage losses
`P_(fw) = (2.5)/(100) * 18.65 kW`

`P_(fw)` = 0.025 × 18.65 kW

`P_(fw)` = 0.46625 kW

`P_(fw)` = 0.47 kW

The friction and windage loss of the induction motor is 0.47 kW