Applications of DC generators
There are several types of DC generators available for a variety of applications. The applications of these DC generators depending on their properties are discussed below:
Applications for Separately Excited DC Generators
- Because of their ability to provide a broad range of voltage output, they are commonly employed in laboratories for testing.
- Separately excited generators maintain a constant output regardless of field excitation. Because of this quality, they are used as a power source for DC engines, whose rates must be adjusted for various purposes. Ward Leonard’s speed control systems is a example.
Applications for Shunt DC Generators
- They are used to provide general illumination.
- They are used to charge batteries since they may be configured to provide a consistent output voltage.
- They are used to provide stimulation to alternators.
- They are also utilized as miniature power supplies.
Applications for Series DC Generators
- They are used to provide field excitation current in DC trains for regenerative breaking.
- These generators are employed as boosters to compensate for voltage drops in feeders in a variety of distribution systems, including train service.
- These generators are most commonly employed in series arc lighting.
Applications for Compound DC Generators
- Cumulative compound generators are used for illumination, power supply, and heavy power service due to their constant voltage properties. They are primarily overly compounded.
- Total compound generators are also used to power a motor.
- Level compound generators are commonly used for small-distance operations, such as power supply for hotels, workplaces, houses, and lodges.
- Because of its strong demagnetization armature response, differential compound generators are employed in arc welding applications requiring a big voltage drop and steady current.
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