A star-connected induction motor has the following rated parameters: Voltage UN = 400 V, current IN...

A star-connected induction motor has the following rated parameters: Voltage UN = 400 V, current IN = 8 A, frequency fN = 50 Hz, speed nN = 1480 rpm, power factor cos ĳN = 0.8, efficiency ȘN = 0.9, magnetizing inductance Lm = 280 mH, stator leakage inductance LVı = 9 mH and rotor leakage inductance LUı = 14 mH.

For the rated operating point of the motor, calculate the per-unit values for electric active power Pel, mechanical power Pmech, magnetizing inductance Lm, stator leakage inductance LVı, rotor leakage inductance LUı, slip s, and the mechanical torque Tmech. Calculate the motor rated power and rated torque (the actual kW and Nm values) using the per-unit values.

Expert Solution

Manojponduru answered 3 months ago

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