AC GENERATOR - Quiz

1) Which type of alternator is used for high speed operation?

Salient pole alternator Smooth cylindrical pure alternator Projected pole alternator Impulse turbo alternator

2) How the alternators are rated?

KVA KW KVAR KWH

3) What is the condition for voltage in parallel operation of 3-phase alternator?

Must be same Must be different Must be low Must be high

4) Which is the condition for parallel operation of 3-phase alternator?

Frequency must be same Voltage must be different Sequence must be different Polarity must be different

5) Why parallel operation of alternators is necessary?

To get more voltage To share more loads To improve efficiency To maintain constant frequency