Which among the following makes double layer windings advantageous than the single layer windings? a) ease in the manufacture of coils and lower cost of winding b) less number of coils are required as spare in the case of winding repairs c) fractional slot windings can be employed d) ease in the manufacture of coils and lower cost of winding, fractional slot windings can be employed, less number of coils are required as spare in the case of winding repairs

Which among the following makes double layer windings advantageous than the single layer windings? a) ease in the manufacture of coils and lower cost of winding b) less number of coils are required as spare in the case of winding repairs c) fractional slot windings can be employed d) ease in the manufacture of coils and lower cost of winding, fractional slot windings can be employed, less number of coils are required as spare in the case of winding repairs