Types of DC Generators
There are three techniques of excitation, and hence three primary types of DC generators:
- Permanent Magnet DC Generators – Field coils energized by permanent magnets
- Separately stimulated DC Generators: Field coils stimulated by an external source.
- Self-excited DC generators have field coils that are stimulated by the generator itself.
These generators are further classified based on their field coil location. They are:
- Series Generators
- Shunt Generators
- Compound Generators
Construction And Working of a DC Generator
In 1831, Michael Faraday, a British physicist, devised the electromagnetic generator. The primary function of this device is to convert mechanical energy to electrical energy. There are several types of mechanical energy sources available, including hand cranks, internal combustion engines, water turbines, and gas and steam turbines. The generator provides capacity for all electrical power networks. An electric motor should be able to perform the generator’s converse function. The basic purpose of the motor is to convert electrical energy into mechanical energy. Generators and motors have many properties.
Table of Content
- DC Generator
- Construction of a DC generator
- Workings
- Types
- Losses in DC Machines
- Characteristics of DC Generator
- Characteristics of DC Series Generator
- Characteristics of DC Shunt Generators
- External Load Characteristics of the DC Compound Generator
- Efficiency of a DC Generator