Application of Induction Generator
Let us discuss application of induction generator: We have two types of induction generator let us discuss the application of each type of generator separately: Externally excited generators are widely used for regenerative breaking of hoists driven by the three phase induction motors.
Self-excited generators are used in the wind mills. Thus this type of generator helps in converting the unconventional sources of energy into electrical energy.
Now let us discuss some disadvantages of externally excited generator:
The efficiency of the externally excited generator is not so good.
We cannot use externally excited generator at lagging power factor which major drawback of this type of generator.
The amount of reactive power used to run these types of generator required is quite large.
Advantages of Induction Generator
It has robust construction requiring less maintenance. Also it is relatively cheaper.
It has small size per KW output power.
It runs in parallel without hunting
No synchronization to the supply line is required like a synchronous generator.
Limitations
It cannot generate reactive voltamperes. It requires reactive voltamperes from the supply line to furnish its excitation.