Main types of transformer


Main types of transformer


1.    Step Up Transformer - Used for step up the voltage level of power in transmission and distribution power system.

2.     Step Down Transformer - Used for down the voltage level of power in transmission and distribution power system.

3.    Three Phase Transformer - It is generally used in three phase power system as it is cost effective single phase.

4.     Single Phase Transformer – It is used for single phase system and also in 3 phase system by employing 3 single phase transformers.

5.    Electrical Power Transformer – These are generally used in transmission network for stepping up or down the voltage level. It operates mainly during high or peak loads and has maximum efficiency at or near full load.

6.     Distribution Transformer - Distribution transformer steps down the voltage for distribution purpose to domestic or commercial users. It has good voltage regulation and operates 24 hrs.

7.    Instrument Transformer - Instrument transformers include C.T and P.T which are used to reduce high voltages and current to lesser values which can be measured by ammeter and voltmeter respectively.

8.    Auto Transformer – In an auto transformer, portions of the same winding act as both the primary and secondary sides of the transformer.

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