What is a Transformer? Types and Transformer protection

The transformer is a device that transfers electrical energy from one circuit to another through the magnetic field without change of frequency.

Based on service

1. Power Tr
2. Distribution Tr.

What is the use of transformer?

In this age of modern transmission system with optimal loss it is necessary to transmit the power at very high level.it is not economical to produce electrical power at such a high voltage.Here comes the vital role of transformer, which enhances the voltage level from generating voltage to such a high level where the loss is minimal.

It is also used as booster in distribution system to give better voltage regulation.

General Fault In Transformer

General Fault in transformer are

1. Open circuit Fault
2. Over heating
3. Winding short circuit fault
4. faults due to lightening

Protection For Transformer

1. Buchholz Relay
2. Earth Fault Relay
3. Over current relay
4. Differential relay
5. Digital relay