Power Transformers

1. What are Power Transformers?

A power transformer is an electrical device used to transfer electrical energy from one circuit to another without changing the frequency. They operate based on the principle of electromagnetic induction. They are used to transfer electrical energy between generators and primary distribution circuits.

2. What are the Types of Power Transformers?

Power transformers can be further divided into three categories based on their power rating and specifications:

Small Power Transformers

Medium Power Transformers

Large Power Transformers

3. How do Power Transformers Work?

A power transformer works by transferring electrical energy from one circuit to another through inductively coupled coils. The primary coil is connected to the AC power source, and the secondary coil is connected to the load. When AC current flows through the primary coil, it induces a magnetic field around the transformer’s core. This alternating magnetic field then induces a current in the secondary coil, transferring electrical energy from the primary to the secondary. The ratio of the number of turns in the primary coil to the number of turns in the secondary coil determines the transformer’s voltage transformation ratio.

4. What are Power Transformers Used for?

The main function of a transformer is to step up or down the voltage on the primary winding to the secondary winding. This can be achieved by adjusting the ratio of the coils on one side to the coils on the other side.