Answer / Braj Mohan Munduia

An exciter is used in a Diesel Generator (DG) for the following purposes:n1. Excitation of the field winding: The exciter supplies current to the rotor windings of the generator, which helps to create and maintain a magnetic field.n2. Control of the output voltage: By adjusting the amount of current supplied by the exciter, the output voltage of the DG can be regulated.n3. Starting of the generator: During startup, the exciter provides initial excitation to help the generator rotate and generate electricity.

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