Electrical Engineering - Three-Phase Systems in Power Applications - Discussion

@Himanshu.

The transformer is transformed electrical energy from source to source but alternator does not transfer it will generate power.

An Alternator is an electromechanical AC generator it is true. It works on the principle of electromagnetic induction.

The statement is True.

Let's break this down:

1. Definition of an alternator:
An alternator is indeed an electromechanical device that converts mechanical energy into electrical energy in the form of alternating current (AC).

2. Electromechanical nature:
- "Electro" refers to the electrical output it produces.
- "Mechanical" refers to the mechanical input (rotational motion) it requires to operate.

3. AC Generator:
- It generates alternating current (AC), hence the name "alternator".
- The term "generator" is a broader category that includes devices that produce electricity.

4. Working principle:
- It operates on the principle of electromagnetic induction.
- A rotating magnetic field induces an alternating voltage in stationary armature windings.

5. Common applications:
- Automotive industry (in vehicles to charge the battery and power electrical systems)
- Power plants (large alternators are used to generate electricity)
- Portable power generation

6. Distinction from DC generators:
- While both convert mechanical energy to electrical energy, alternators produce AC directly, whereas DC generators produce DC.

So, the statement is true because an alternator fits the definition of an electromechanical AC generator, converting mechanical energy into electrical energy in the form of alternating current through electromagnetic induction.