Question
Download Solution PDFIn case of two-layer winding in stator of alternators, each slot in stator contains _________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe difference between single layer and double layer windings are as follows:
|
|
Single-layer winding | Double-layer winding |
| Coil sides per slot | One | Two |
| The total number of coils |
Equal to half of the total number of slots. Two slots are occupied by one coil. |
Equal to the total number of slots. Two slots are occupied by two coils. |
| Space utilization in slot | Poorer | Better |
| Power factor | Poorer | Better |
| Magnetizing current | Increases | Decreases |
| E.M.F. | Worst emf waveform | Better emf waveform |
| Slotting used | Integral slotting used to improve emf waveform | Fractional slotting used to improve emf waveform. |
| Harmonics | Harmonics may be increased | Harmonics can be reduced or eliminated |
Last updated on Jun 16, 2025
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