Electrical Engineering · Maintenance of Electrical Machines
If a three-phase induction motor exhibits significant magnetic noise and vibration during no-load operation, which maintenance check should be prioritized to confirm the mechanical alignment of the rotor?
- 1Measurement of the slip using a stroboscope
- 2Resistance measurement of the stator windings
- 3Measurement of the air gap uniformity with a feeler gauge✓
- 4Insulation resistance measurement of the stator
Correct answer
Measurement of the air gap uniformity with a feeler gauge
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