Unit Transformer Substation

Unit substation transformers have the same use cases as regular substation transformers. It is designed to perform a fundamental task: transforming voltage levels. Power generated at generating stations often carries high voltages over long distances to minimize transmission losses.

However, these high voltages are unsuitable for direct use in homes, businesses, and industries due to safety concerns and equipment compatibility. So, these transform the voltage to a lower amount for the distribution transformers to transform into even lower voltage for home and business use.

Technical data

Components and Composition

A unit substation transformer is a combination of various basic components, the main components are substation transformer, primary equipment and secondary equipment. There are two different types of unit substations. There are primary unit substations (secondary voltage 1000v and above) and secondary unit substations (secondary voltage 1000v and below).

Switchgear and Circuit Breakers:

Integral to a unit substation are switchgear and circuit breakers, which are responsible for controlling the flow of electricity, isolating faults, and protecting the distribution network from overloads and interruptions.

Enclosure:

The transformer and associated equipment are housed in a protective enclosure to protect them from environmental factors, thereby increasing their reliability and lifespan. A unit substation differs from a conventional substation in that it is enclosed with switchgear and circuit breakers.

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