Which Transformer Is Used In Substation

Substations are essential components of the power distribution network. They transform high voltage power from the power plants to lower voltage levels suitable for residential and commercial use. To perform this crucial function, substations rely heavily on transformers. But which transformer is used in a substation?

The answer to this question depends on the specific application of the substation. Generally, substations use two types of transformers: step-up transformers and step-down transformers.

Step-up transformers are used in power plants to increase the voltage level of the power generated, usually to hundreds of thousands of volts. This high voltage power is then transmitted to the substation using high voltage transmission lines. At the substation, step-down transformers are used to lower the voltage level to a suitable level for distribution to customers.

Step-down transformers are also used within substations to further lower the voltage level for household and commercial use. These transformers typically come in two types: primary and secondary. Primary step-down transformers are used to reduce voltage from high to medium levels. On the other hand, secondary step-down transformers are used to further reduce medium voltage power to low voltage suitable for household use.

In summary, the type of transformer used in a substation is determined by the function of the substation. Step-up transformers are used in power plants to increase voltage levels, while step-down transformers are used in substations to lower voltage levels for distribution to customers. Primary and secondary step-down transformers are used in substations to further reduce voltage levels for household and commercial use.