Rotating Amplifiers : DC Generators

The quantity which make rotating amplifier applicable in large power levels is/are

The ordinary dc machines are not favourable as amplidynes due to

The delay of the commutation occurs due base cause of emf induced due to

In cross field rotating amplifiers, there is

I. DC shunt motor – variable speed application
II. DC compound generator – constant supply voltage
III. Differentially compounded motor – welding purposes
Above are the applications of the dc machines , but all are not matched correctly. Choose the wrong marking

Metadyne is _________ feedback with respect to main ___________

I. DC shunt motor – Lathe machine
II. DC compound generator – Drilling machine
III. Differentially compounded generator – welding purposes
Above are the applications of the dc machines, but all are not matched correctly. Choose the wrong marking

An amplidyne, d-axis flux is always neutralized due to

In amplidynes, the resultant d-axis flux is

The cross field machines have

In rotating amplifiers, armature reaction mmf of the first stage is made to act as field flux for second stage.

Amplidynes are best applicable in

Mark the order for the decreasing order of the voltage regulation for dc generators

Interpoles provide mmf more than armature mmf in a dc machine.

The rotating amplifiers are widely used in