Characteristics of DC Shunt Generators
The armature current in a shunt generator is separated into two parts: Ish, which flows via the field winding, and IL, which is routed to the external load.
Open Circuit Characteristics
The curve (1) in the image depicts the open circuit characteristics of a DC shunt generator, which are identical to those of a series generator.
Internal characteristics
When the load is attached to the generator, the generated EMF (E) decreases due to the lower flux per shaft caused by armature response. As a result, the generated EMF under loaded conditions differs from the produced EMF with no load. As a result, the internal features decrease somewhat [see curve] (2).
External Characteristics
It shows the connection between load current (IL) and terminal voltage (V). Other names for it include load attributes and terminal characteristics.
V = E-Ia Ra.
In this case, the exterior characteristics are lower than the internal characteristics by an amount equal to the voltage drop caused by armature resistance.
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