SSC SSC JE Electrical 2025 Mock Test Series (Paper 1 & Paper 2) Electrical Machines Alternator and Synchronous Motors Synchronous Motor Starting
If the speed of a synchronous motor is 160 rpm, then the number of poles (P) and supply frequency (f) values are
1
P = 20 and f = 50 Hz
2
P = 30 and f = 40 Hz
3
P = 40 and f = 50 Hz
4
P = 60 and f = 40 Hz