What is Transformer Banking?

What is Transformer Banking?

Single Three Phase Transformer Definition

A single three-phase transformer is a single unit that manages three-phase electrical power, costing less and taking up less space than multiple single-phase transformers.

Bank of Three Single Phase Transformers

This setup uses three single-phase transformers together, offering easier transportation and operational flexibility if one transformer fails.

Transformer Banking

The practice of using multiple transformers together to manage three-phase power, offering advantages like cost-effectiveness and ease of maintenance.

Connection Methods

Star-Star Transformer

Delta-Delta Transformer

Star-Delta Transformer

Delta-Star Transformer

Economic Considerations

Star-delta connections are economical for step-down purposes, while delta-star connections are economical for step-up purposes due to insulation cost and potential stress differences.