Mac Spiller

CCO

Mac brings over a decade of experience to his current role as the CCO of Maddox. His day-to-day work involves finding transformer solutions for customer problems across the country.

Expertise

Engineerin
Technical Training

Written Work

March 31, 2023

Oil cools a transformer's windings. Types of transformer oil include mineral oil, FR3® fluid, and silicone oil. Find out which is best for your transformer.

How To's

March 28, 2023

What bushing layout do you need for your substation transformer? The layout will depend on the bushing location, phasing, and type of terminal enclosures.

How To's

Radial feed bushing configuration on padmount transformer

September 28, 2022

A loop feed transformer can handle both radial and loop distribution systems, while a radial feed transformer is almost always used in a radial setup.

How To's

September 14, 2022

When choosing a general purpose low voltage dry type transformer (below 600v), you'll need to consider phase type, kVA rating, and input and output voltage.

How To's

August 9, 2022

Harmonics can be harmful for a transformer's operation. However, they can be mitigated by K-Factor rated transformers, Zigzag transformers, and other options.

How To's

Taking an oil sample from a liquid-filled transformer

April 4, 2022

The Dissolved Gas Analysis test (DGA) has long been the most reliable and accurate method for determining the internal health of oil-filled transformers.

How To's

Mac Spiller

CCO

Written Work

Transformer Oil

Guide to Substation Bushings

Guide to Radial and Loop Feed Transformers

How to Buy the Right Transformer (600v class)

Guide to Transformer Harmonics and K-Factor

Transformer Oil Dissolved Gas Analysis (DGA) Guide