Construction of DC Generator

Introduction

• A DC Generator converts mechanical energy into DC electrical energy.
• Understanding its construction and assembly aids in comprehending its operation.

Key Components

Stator Magnets

• Electromagnets arranged so that adjacent poles have opposite polarity.
• Function: Produce the magnetic field.

Armature

• System of conductors or coil rotating on supported bearings.
• Consists of several parts:
  • Armature Core: Made of high permeability thin silicon steel laminations with slots on the periphery to carry windings.
  • Armature Winding: Copper wires wound over the core.

Commutator

• Cylindrical and made of copper.
• Two basic functions:
  1. Collecting current from the armature conductors.
  2. Converting alternating current of the armature to unidirectional current in the external circuit with the help of brushes.

Brushes

• Made of carbon or graphite.
• Function: Collect current from moving commutator.

Shaft

• Rotating part of the DC motor.
• Final mechanical energy output obtained here.
• Armature is mounted over the shaft.

Assembly of DC Generator

• Visualize the assembly through animation or diagrams.

Next Steps

• Detailed discussion on the working of a DC generator.