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small dry-type transformer with exposed interior

March 4, 2026

Not sure whether to buy new or used? Learn what to expect when purchasing a dry-type transformer and how Maddox tests and warranties every unit for reliable performance.

Parts

substation transformer with cooling fans in yard

February 24, 2026

Explore substation transformers, power-class definitions, voltage ranges, and key design features used in transmission and distribution substations.

Parts

January 29, 2026

Learn what transformer bushings are, how they work, their two main types (dead-front and live-front bushings), and when each type works best in padmount and substation transformers.

Parts

A padmount transformer filled with FR3® Fluid being loaded on a truck

January 5, 2026

FR3® fluid is the go-to cooling fluid in transformers. Learn all about FR3® fluid, and why you should choose it over mineral oil for your transformer.

Parts

metal enclosed and pad mounted switchgear article

October 7, 2025

Switchgear Basics: Learn what they are, how they work, and the key differences between metal-enclosed and pad-mounted switches.

Parts

September 22, 2025

Learn the key differences between kW and kVA. Get clear on transformer ratings, conversions, and power factor in simple terms.

Parts

Cast coil transformer and an encapsulated transformer

July 30, 2025

Cast coil and encapsulated transformers provide resin-sealed protection and maintenance-free performance for critical applications.

Parts

June 20, 2025

Improve the installation flexibility and lug capacity of your transformer using spade extensions.

Parts

May 16, 2025

Learn the key differences between Delta (Δ) and Wye (Y) transformer connections, including use cases, advantages, grounding, and how to choose the right setup.

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Parts

What to Expect When Buying a Used Dry-Type Transformer

Substation Transformer Guide: Design, Power Classes, and Grid Applications

Guide to Transformer Bushings

The Benefits of FR3® Fluid in Transformers

Guide to Switchgear: Metal-Enclosed and Pad-Mounted

kVA vs. kW in Transformers: Definitions, Conversions, and Power Factor

Cast-Resin Transformers: Encapsulated & Cast Coil

Guide to Spade Extensions

Guide to Delta and Wye Transformer Connections