Question

what is the input current of a 2hp single phase motor, 240v at 70% efficiency and 0.8 power Factor?​

Answer 1

Answer:

10.95 A

Explanation:

hope it's helps

Answer 2

Given,

Output power rating of the motor = 2 HP = 2*746 W = 1492 W.

Supply voltage = 240 V

Efficiency = 70%  = 0.7

Power factor = 0.8

To Find,

The inout current.

Solution,

By using the formula of input power

P = output power/η = 1492/0.7 = 2131.43 W

Now,

P = V*I*cos∅

2131.43 = 240*I*0.8

I = 11.1 ampere

Hence, the input current is 11.1 ampere.