A SYNCHRONOUS MOTOR IS TAKING 50 A AT 440 VOLTS AND 0.9 POWER FACTOR LAGGING. THE EFFECTIVE RESISTANCE OF THE ARMATURE I
Posted: Thu Jul 14, 2022 2:37 pm
A SYNCHRONOUS MOTOR IS TAKING 50 A AT 440 VOLTS AND 0.9 POWERFACTOR LAGGING. THE EFFECTIVE RESISTANCE OF THE ARMATURE IS 0.8OHM. IF THE FRICTION AND WINDAGE LOSS IS 500 WATTS, CALCULATE THEEFFICIENCY OF THE MOTOR.
a. 83.77% b. 87.97% c. 87.37% d. 81.11%
a. 83.77% b. 87.97% c. 87.37% d. 81.11%