question archive A 440 - V 50 - Hz six - pole Y - connected induction motor is rated at 75 kW
A 440 - V 50 - Hz six - pole Y - connected induction motor is rated at 75 kW
Subject:Electrical EngineeringPrice: Bought3
A 440 - V 50 - Hz six - pole Y - connected induction motor is rated at 75 kW. The equivalent circuit parameters are
R1 = 0.0821ohm R2 = 0.070 ohm
Xm = 7.2 ohm
X1-0.19ohm
X2-0.18ohm
Pr&w-1.3 kW
Pmisc - 150 W
Pcore - 1.4kW
For a slip of 0.04, find
(a) The line current IL
(b) The stator power factor
(c) The rotor power factor
(d) The stator copper losses PseL
(e) The air - gap power PAG
(f)The power converted from electrical to mechanical form Pconv (g) The induced torque Tind
(h) The load torque Tload
(i) The overall machine efficiency
