iNDUCTION MOTOR

Induced power equation is....

motor speed = 950rpm, pole = 6, freq = 50Hz, find slip,s.

• 0.05

• 0.5

• 0.01

• 0.1

induction motor rotor type

• stator & rotor

• slip ring & wound

induction motor test

• load test

• no load test

• dc power test

Given line voltage & current of Y connected induction motor are 415V, & 103 A with power factor 0.85 lagging. Determine input power.

• 48.86W

• 36.33W

• 62.93W

Advantages of induction motor

• cheaper

• high maintenance

• speed constant

Ratio of slip speed and synchronous speed is....

• rotation magnetic field speed

• slip

• rotor frquency

Given, mechanical power is 33.75kW, slip = 0.043, find Rotor Input Power (RIP)

• 35.27kW

• 784.88kW

• 1451.25W

• 32.3kW

Change 1500rpm to rad/s

• 14323.94

• 9424.78

• 157.08

• stator core loss

• stator copper loss

• rotor input power

• rotor copper loss