The Difference Between Distribution And Power Transformers

The Difference Between Distribution And Power Transformers

When we are talking about powering cities, worksites, mining projects, or anything with a significant size, sprawl, or power need, there are a few different ways to make sure the required power is generated and distributed. 

When it comes to the distribution of power, there are two major types of distribution transformers that are most often used: Liquid-filled transformers and Dry transformers. While the liquid-filled transformers are usually more compact and a lot more cost-friendly and efficient, dry transformers are better used in situations where fire precautions are at an utmost priority such as underground mining stations and marine industrial sites. 

The main way that distribution transformers are cooled is through natural convection of the insulation as the heat the system creates is transported away from the core by this method. However, in liquid-filled transformers, the heat is whisked away from the core through the liquid tank walls due to thermal conduction. The heat is then removed due to the convection of the air. In dry transformers, there is forced internal convection created by a flow of air that makes sure the transformer’s core is cooled. 

The Need For Power Transformers

After the power being transmitted exceeds a certain limit, there is a need for special designs that are built to withstand the mechanical force of short circuit currents with much higher insulation levels and a higher level of cooling requirements. In these situations, the answer usually lies with liquid transformers. 

It is these types of power transformers that are used as some of the core elements when it comes to supplying large regions or sprawling industrial or mining sites with large amounts of power. These types of power transformers are required to comply with specific safety and reliability standards. 

This post was written by Justin Tidd, Director at Becker/SMC. For nearly a half a century, Becker Mining has been at the forefront of safety, producing the best ground fault relay in the industry. Becker/SMC is the industry’s leader in increasingly more sophisticated electrical control systems. Most of the major innovations, design features, and specialized electrical components have been developed by Becker/SMC.

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