engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Electrical Machines Alternator and Synchronous Motors Pitch Factor
The air gap flux of an alternator has a 3rd harmonic component along with fundamental component. If the coils are short pitched by an angle α for fundamental wave, then the pitch factor corresponding to the 3rd harmonic wave is _______.
1
\(\cos\frac{4\alpha}{3}\)
2
\(\cos\frac{3\alpha}{2}\)
3
\(\cos\frac{2\alpha}{3}\)
4
\(\cos\frac{3\alpha}{4}\)