engineering recuitment GATE EE 2023-24 Test Series Electrical Machines Alternator and Synchronous Motors
A synchronous motor is connected to an infinite bus at 1.0 p.u voltage and draws 0.6 p.u at unity power factor. Its synchronous reactance is 1.0 p.u and resistance is negligible.Keeping the excitation voltage same, the load on the motor is increased such that the motor current is increases by 20%. The operating power factor will become
1
0.995 lagging
2
0.995 leading
3
0.791 lagging
4
0.848 leading