DC Generator Field Coil Location
The field magnet coil in a DC generator is responsible for creating the main magnetic field. This magnetic field is essential for the process of electromagnetic induction where voltage is generated in the armature windings.
In the construction of a typical DC generator, the field system, including the field poles and their windings (field coils), is stationary. This stationary part constitutes the outer frame or casing of the generator, commonly referred to as the stator or the generator's body.
The armature, which contains the windings where current is induced, is the rotating part (the rotor). The field coil must remain stationary to produce a constant magnetic field relative to the rotating armature.
Therefore, the field magnet coil is fitted in the body of the DC generator.
Analyzing the options:
- In the rotor: Incorrect. The armature rotates here.
- On the shaft: Incorrect. The shaft is the rotating axle.
- On the back cover: Incorrect. The back cover is a protective component.
- In the body: Correct. The field coils are part of the stationary stator structure.
Similar Questions
What is the primary cause of sudden insulation resistance failure in a DC generator?
- Short __________ Compound Generator is a type of DC generator.
- In Separately Excited Generator, the field windings are connected in:
- Series Generators are generally NOT used because their terminal voltage:
- What is the difference of DC voltages in adjoining brushes?
Why is a DC compound generator preferred for industrial loads?
- Which type of DC generator has its field winding connected in parallel with the armature?
- A DC generator delivers a load current of 25 A at 200 V. If the generated EMF is 205 V, what is the armature resistance?
Important Questions from DC Generators
In DC machine shape of main field flux distribution is
The greatest eddy current loss occurs in ______ part of the DC machine.
In DC machines, the internal characteristics are plotted between:
Dummy coil in a d.c. generator is provided to reduce ________
The commercial efficiency of a shunt generator is maximum when its variable loss equals the ________ loss.
