A 10 HP 1750 rpm 550 volt shut motor has an armature resistance of 1.55 ohms.If the armature takes 14.8 Amp full load: Calculate a) The counter emf develop by the motor;b) The power develop by the motor in watts and in horsepower.
Given
Pl =10 HP (0.746 watts/HP)
Pl =7.46 KW
Va=550 Volts
S=1750 RPM
RA=1.55 ohm
IA=14.8 A
VBC= 5V
Required:
Calculate the Counter Electromotive force develop by the motor
The power develop by the motor in watts and HP
Solution:
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