engineering recuitment BHEL Engineer Trainee Mock Test 2025 Electrical Machines Alternator and Synchronous Motors
What are the zero power factor characteristics (ZPFC) used for in the context of alternators?
1
To calculate the short-circuit voltage of the alternator
2
To determine the synchronous speed of the alternator
3
To plot the armature terminal voltage per phase against field current
4
To assess the power factor when the alternator is loaded by reactors