A 6-pole 3-phase induction motor is operated by a 60-Hz 3-phase source with the line voltage 𝑉𝑙𝑖
Posted: Wed May 18, 2022 6:42 am
A 6-pole 3-phase induction motor is operated by a 60-Hz 3-phase
source with the line voltage πππππ =440π at a rotor speed ππ =1100
rpm. The motor draws a line current πΌππππ =32π΄ at a power factor
cos(π)=0.92. The developed torque ππ =170 Nm and the loss torque is
ππ =4 ππ. Calculate:
a) The Synchronous speed in rpm and in radians per second
. b) The rotor speed ππ in radians per second.
c) The fractional slip s.
d) The Electrical input power πππ
e) The power transferred to the Rotor ππ
f) The developed mechanical power ππ
g) The power lost in the Rotor resistance πππ
h) The Power lost in the stator πππ
i) The Mechanical output power πππ’π‘ and the mechanical power
loss πππ
j) The Motor Efficiency
source with the line voltage πππππ =440π at a rotor speed ππ =1100
rpm. The motor draws a line current πΌππππ =32π΄ at a power factor
cos(π)=0.92. The developed torque ππ =170 Nm and the loss torque is
ππ =4 ππ. Calculate:
a) The Synchronous speed in rpm and in radians per second
. b) The rotor speed ππ in radians per second.
c) The fractional slip s.
d) The Electrical input power πππ
e) The power transferred to the Rotor ππ
f) The developed mechanical power ππ
g) The power lost in the Rotor resistance πππ
h) The Power lost in the stator πππ
i) The Mechanical output power πππ’π‘ and the mechanical power
loss πππ
j) The Motor Efficiency