Direct Current Machines – Study Material
An electrical generator is a rotating machine which converts mechanical energy into electrical energy. This energy conversion is based on the principle of electromagnetic Induction. According to Faraday’s law of electromagnetic induction, whenever a conductor is moved in a magnetic field, dynamically induced emf is produced in the conductor.
Direct Current Machines – Study Material
Synopsis
- Types of DC Generators
- Compound Generator
- Applications of DC Generators
- DC Motors
- Types of DC Motors
- Applications of DC Motors
Types of DC Generators:
According to their methods of field excitation
- Separately excited
- Self excited
Compound Generator:
Consists of both shunt field and series field windings. Depending upon the shunt field and series field connections, compound generator can be classified as,
- Long shunt compound generator
- Short shunt compound generator
DC Motors:
- While a DC generator converts mechanical energy in the form of rotation of the conductor (armature) into electrical energy, a motor does the opposite.
- The input to a DC motor is electrical and the 0/P is mechanical rotation or torque
Types of DC Motor:
- Series motor
- Shunt motor
- Compound motor
- Long shunt
- Short shunt