Sub-station Transformers

Sub-station Transformers

This type of transformer is used in sub stations to transfer the incoming voltage to the next voltage level. It can be system or auto transformer with two/three windings. In general it is equipped with On load tap changers and are connected to transmission grids by bushings and cables.

The system/auto transformer is built in core form. HV/LV windings are galvanically separated for system transformer while they are Auto connected for auto transformer.