engineering recuitment NMDC Junior Officer (Trainee) Mock Test 2024 Electrical Machines Alternator and Synchronous Motors Synchronous Reactance
A 3-phase alternator generates open circuit voltage of 5000 V per phase when exciting current is 40 A. Calculate the synchronous reactance per phase if the short circuit current for the same excitation is 2000 A.
1
5 ohm
2
2.5 ohm
3
50 ohm
4
25 ohm