Class 4 (4th Engineer) MET 📅 Jul 2022

Exam Question

A 3 phase induction motor which is wound for 4 pole, when running full load develops a useful torque of 100Nm, also rotor emf is observed to make 120 cycles/ min. It is knows that the torque lost on account of friction and core loss is 7Nm. Calculate the shaft power output, rotor cu loss, Motor Input and Efficiency (4 x 4)

Reference Answer

### Induction Motor Performance Calculation
This problem requires the calculation of key performance parameters for a 3-phase induction motor based on its operational data. The solution involves a step-by-step determination of speeds, power at various stages, losses, and overall efficiency.
#### Given Data:
- **Motor Type:** 3-Phase Induction Motor

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