Electrical Machines Mock Test 6

1. Effects of hunting are/is ___________

2. The open circuit voltage and open circuit core loss variation is?

3. The coupling angle or load angle of a synchronous motor is defined as the space angle between __________

4. (I)For constant power of an isolated alternator, V-curves can be obtained.
(II)For constant power of an alternator connected to IBB, V-curves can be obtained.

5. In a 3-phase cylindrical-rotor alternator, synchronous reactance is sum of mutual and leakage reactance.

6. A 3 phase 400V salient pole alternator is running at no-load. Suddenly the excitation is removed then the net power in the machine is proportional to _____________

7. The satisfactory operation of the synchronous machine means ___________

8. If it is planned to bring an incoming alternator to the operating alternator in parallel, then which of the criteria can be ignored?

9. Synchronizing power is __________

10. The inverted V plots is plotted between ________