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The main generators typically supply a maximum of:

• 120 kilovolt amps (KVA)

• 90 kilovolt amps (KVA)

• 250 kilovolt amps (KVA)

The small pins in the power connector plug are.

• neutral.

• positive.

• negative.

When an overvolt is present on an AC generator system, the tripping circuit.

• trips after a time delay.

• trips after a time delay inversely proportional to overvolt amplitude.

• trips at a set level.

In an AC distribution system, the purpose of the synchronising bus-bar is to.

• supply essential services.

• provide interconnection between the generator load busbars.

• provide a means of monitoring the load.

The moving part in an AC generator is usually referred to as the:

• oscillator.

• stator.

• rotor.

The function of a constant speed drive (CSD) in an AC generating system is to :

• vary the engine rpm (within limits) to compensate for various AC loads.

• vary generator rpm in order to compensate for various AC loads.

• drive the generator at a constant speed.

Zener diodes are for.

• voltage stabilisation.

• rectification.

• voltage regulation.

AC generator output indications are measured in.

• KVA & KW.

• KW.

• KW & KVAR.

In the event of complete AC generator failure in an AC split bus-bar generation system, how is power maintained to the essential AC bus-bar?

• By power fed from static inverter only.

• By power fed from a hot battery bus-bar only.

• By power fed from a battery supplied static inverter.

A 3 phase AC generator has 3 separate stator windings spaced at :

• 90°.

• 60°.

• 120°.