engineering recuitment BSPHCL JE Electrical 2024 Mock Test Electrical Machines Alternator and Synchronous Motors Synchronous Reactance
The synchronous reactance of a 500 V, 50 kVA alternator having an effective resistance of 0.2 Ω, if an excitation current of 10 A produces 200 A armature current on short circuit and an emf of 450 Volts on open circuit is
1
2.6 Ω
2
5.2 Ω
3
2.24 Ω
4
4.5 Ω