SSC SSC JE Electrical 2025 Mock Test Series (Paper 1 & Paper 2) Electrical Machines Alternator and Synchronous Motors
The stator of a three-phase, 4 pole alternator accommodates a single-layer three-phase winding in 36 slots. If the coil span of the winding is 120 electrical degrees, then the distribution factor is:
1
\(\frac{{\sin \left( {10} \right)}}{{3\sin \left( {30} \right)}}\)
2
\(\frac{{\sin \left( {20} \right)}}{{3\sin \left( {60} \right)}}\)
3
\(\frac{{\sin \left( {30} \right)}}{{3\sin \left( {10} \right)}}\)
4
\(\frac{{\sin \left( {60} \right)}}{{3\sin \left( {20} \right)}}\)