There are 90 slots in the armature of a 3-phase, 50 Hz., 6 pole, star connected alternator. Winding is of double layer type and there are 20 conductors in each slot. Coil span is 2 slots less than the pole pitch. Calculate the flux per pole if the line voltage of 3300 V is required. Assume the emf to be sinusoidal.

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There are 90 slots in the armature of a 3-phase,
50 Hz., 6 pole, star connected alternator.
Winding is of double layer type and there are
20 conductors in each slot. Coil span is 2 slots
less than the pole pitch. Calculate the flux per
pole if the line voltage of 3300 V is required.
Assume the emf to be sinusoidal.
Transcribed Image Text:There are 90 slots in the armature of a 3-phase, 50 Hz., 6 pole, star connected alternator. Winding is of double layer type and there are 20 conductors in each slot. Coil span is 2 slots less than the pole pitch. Calculate the flux per pole if the line voltage of 3300 V is required. Assume the emf to be sinusoidal.
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