A shunt wound DC generator is connected in a way that allows the field winding to be connected in parallel with the armature. This is because the field winding is connected in parallel with the armature, which is a key characteristic of a shunt wound DC generator.
The shunt field winding is connected in parallel with the armature, allowing the generator to produce a constant voltage output regardless of the load. This is because the field winding is always connected to the armature, providing a constant magnetic field.
The load current flows through the armature, while the shunt field winding draws a constant current from the armature. This is a fundamental aspect of how a shunt wound DC generator works.
In a shunt wound DC generator, the field winding is connected in parallel with the armature, which allows the generator to produce a constant voltage output.
Readers also liked: Shunt Generator
Types of DC Generators
There are several types of DC generators, but let's focus on one of the most common: the shunt wound generator.
A shunt wound generator is connected in such a way that the field winding is connected across the armature winding, forming a parallel or shunt circuit. This means that full terminal voltage is applied across the field winding.
In a shunt wound generator, the field winding has many turns of fine wire, which results in a very high resistance of the order of 100 ohm. This high resistance means that a very small current flows through the field winding.
The shunt field current is calculated as V/Rsh, where V is the terminal voltage and Rsh is the resistance of the field winding.
The armature current in a shunt wound generator is the sum of the load current and the shunt field current, Ia = IL + Ish.
The power developed in a shunt wound generator is given by Eg Ia, where Eg is the generated voltage and Ia is the armature current.
Explore further: Direct Current Electric Generator
Shunt Wound DC Generator Connection
A shunt wound DC generator is connected in a specific way to ensure optimal performance. The field winding is connected in parallel with the armature winding.
The shunt field winding has many turns of fine wire, which results in a high resistance of around 100 ohms. This means that only a small current flows through the field winding.
In a shunt wound generator, the terminal voltage is applied across the field winding, causing a very small current to flow through it. This current is known as the shunt field current, denoted by \(I_{sh}\).
The armature current, \(I_{a}\), is the sum of the load current, \(I_{L}\), and the shunt field current, \(I_{sh}\). This is a key characteristic of a shunt wound generator.
Here's a summary of the connections in a shunt wound generator:
This connection allows the shunt wound generator to maintain a relatively constant output voltage, despite changes in load current.
Sources
- https://www.linquip.com/blog/classification-of-types-of-dc-generators/
- https://www.engineeringdevotion.com/electrical-machines/lecture/DC-machines-types-applications.html
- https://studyelectrical.com/2014/08/types-of-dc-generators.html
- https://www.bartleby.com/subject/engineering/electrical-engineering/concepts/series-and-shunt-connection
- https://www.iwone.cn/knowledge/machines-shunt-wound-dc-generator-characteristic-1469
Featured Images: pexels.com