Alternators

With reduction of load on alternator

An alternator running in parallel with the other alternators all having automatic voltage regulators is to be taken off the bus. The usual procedure before opening the switch is to

Slip rings are made of

As load pf of an alternator becomes more leading, the value of the generated voltage required to give rated terminal voltage _.

If the input of the prime mover of an alternator is kept constant but the excitation is increased then

The power factor of an alternator is determined by its

One advantage of distributing the winding in alternator is to

One advantage of distributing the winding in alternator is to

One of the advantages of distributing the winding in alternator is to

If the input of the prime mover of an alternator is kept constant but excitation is increased, then

For proper parallel operation, ac polyphase alternators must have the same ______

At leading p.f., the armature flux in an alternator ________ the rotor flux.

The power factor of an alternator is determined by its

For two alternators operating in parallel, if the load shared by one of them is to be increased, its field excitation is

What is the function of the damper windings in a large alternator?

The distribution of load between two alternators in parallel operation is changed using one of the following methods?

The drop in the terminal voltage of an alternator due to armature reaction is countered by which of the following?

After wiring two alternators, you checked their frequency and voltage and found them to be equal. Before connecting them in parallel, which of the following should be checked next?

The load sharing between two steam driven alternators operating in parallel are adjusted using which of the following methods?

When an alternator is supplying a zero leading pf load, the armature reaction will produce which of the following conditions?