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Power transformer Introduction

1. What is power transformer?

Power transformers transform electrical voltage from one level or phase to another. Like other transformers, power transformers work on the magnetic induction principle between coils to convert voltage or current levels to another voltage or current levels. 

2. Power transformer types

There are many ways to classify power transformers according to its function as well as its structure. 

1) Single-phase transformer & Three-phase transformer

2) Step-up transformer & Step down transformer

3) Power transmission transformer & Distribution transformer & Control transformer & Control transformer

4) Two Winding Transformer & Autotransformer

3. Power transformer functions

Power transformer can change the alternating voltage, increase or decrease the voltage, giving the output voltage corresponding to the needs. It's used to transfer electricity to long distances or put them into use in homes or factories. 

For example, transfer from a medium voltage (10 kV) to a low voltage (400 V) for residential activities or factories. Or convert the medium voltage (10-50 kV) to a high voltage (110-500 kV or higher) before transmitting to ensure less loss during long distance power transmission.