What compose a transformer substation?

Answer:
A transformer substation comprises of transformation equipment- the transformer, the accessories for the connection of the transformer to the HT Lines (Primary Input)- usually concrete poles/steel towers, insulators etc;
2. The substation protective equipment such as lightning Arresters, Line Fuses and Breakers, Isolators (as appropriate)
3. Effective Earthing system and equipment
4. The Distribution equipment such as feeder pillar units, busbars etc depending on the type of transformer substation.
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