1.is it possible to have full load terminal voltage greater than no load terminal voltage(alternator )?
2.If airgap between stator and rotor is increased, results in what change in value of synchronous reactance(Xs )will occur in the machine?
3.Two alternators A and B having same terminal voltages and are loaded with same capacity loads wit same pf. The alternator A has greater SCR than B. Which alternator will draw more current from DC supply at its field?
4.The lowest point on the ZPF characteristics shows that the terminal voltage across the load is zero even when field current is supplied to the machine. Then, induced emf generated by this field current is consumed by which part of the alternator circuit?
A cylindrical rotor synchronous generator is delivering power at constant field current at a certain pf.If the frequency of the generator is decreased by 15%, keeping applied voltage constant, what happens to the magnitude of the load angle, armature current and pf of the machine?
2.If airgap between stator and rotor is increased, results in what change in value of synchronous reactance(Xs )will occur in the machine?
3.Two alternators A and B having same terminal voltages and are loaded with same capacity loads wit same pf. The alternator A has greater SCR than B. Which alternator will draw more current from DC supply at its field?
4.The lowest point on the ZPF characteristics shows that the terminal voltage across the load is zero even when field current is supplied to the machine. Then, induced emf generated by this field current is consumed by which part of the alternator circuit?
A cylindrical rotor synchronous generator is delivering power at constant field current at a certain pf.If the frequency of the generator is decreased by 15%, keeping applied voltage constant, what happens to the magnitude of the load angle, armature current and pf of the machine?
