- #1

p75213

- 96

- 0

## Homework Statement

Calculate the line current required for a 30kW 3 phase motor having a power factor of 0.85 lagging if it is connected to a balanced source with a line voltage of 440V.

## Homework Equations

*P=√3Vl*IlCos ∅*

Il=[itex]\frac{P}{√3VlCos ∅}[/itex]

Il=[itex]\frac{P}{√3VlCos ∅}[/itex]

*P=Average Power*

Il=Line Current

Vl=Line Voltage

∅=∅v-∅i=∅Z

Il=Line Current

Vl=Line Voltage

∅=∅v-∅i=∅Z

## The Attempt at a Solution

*Il=[itex]\frac{30000}{440√3\times0.85}[/itex]=46.31A*

The answer given is 50.94A