Transformer Resources & Guides
Expert guidance on selecting, specifying, and procuring transformers. Whether you're new to transformer procurement or a seasoned engineer, our resources help you make informed decisions.
Buyer's Guides
FEOC Compliance for Transformer Buyers: What You Need to Know Before Your Next Purchase
The Foreign Entity of Concern rules are reshaping transformer procurement. If your project claims clean energy tax credits, your transformer supply chain is now under the microscope.
Read articleHow to Choose the Right Distribution Transformer (Without Getting Burned)
A complete buyer's guide to selecting distribution transformers. Learn about kVA sizing, voltage classes, cooling types - and why where it's made matters more than ever.
Read articleTransformers 101: Every Type Explained (So You Don't Sound Clueless on Your Next Call)
The complete guide to transformer types: padmount, pole-mount, substation, dry-type, autotransformers, and more. What they are, when to use them, and what they cost.
Read articleRFPs to 5 Suppliers vs. One Search Across 150+: Why Smart Buyers Use a Marketplace
Sending RFPs to a handful of OEMs is how transformer procurement has always worked. But it's slow, limited, and leaves money on the table. Here's why a marketplace approach gets better results.
Read articleTechnical Resources
Your Space Saving Solution: Integrated Fault Interrupting (IFI) Transformers
Integrated fault interrupting transformers build primary-side protection and switching into the transformer itself, replacing a separate switchgear pad. How the design works, how it compares, and how to specify it so multiple manufacturers can bid.
Read articleElectricity Doesn't Travel Well. Transformers Are Why It Travels at All.
We are bound by Ohm's law, and it is never changing. Without a step-up transformer, high power can't survive even a short trip. The physics, in one chart.
Read articleDOE Transformer Efficiency Standards: Compliance, Competition, and China
Complete guide to DOE transformer efficiency standards - and why these regulations matter more than ever for supply chain security.
Read articleTransformer Cooling Classes Explained: ONAN, ONAF, OFAF, and More
Understanding transformer cooling class designations. Learn what ONAN, ONAF, OFAF, and other cooling codes mean and how to select the right cooling for your application.
Read articleDOE 2029 Efficiency Mandates: The End of Cheap Foreign Transformers?
New DOE efficiency standards take effect April 23, 2029. They raise the efficiency floor unevenly - modestly for most of the market, sharply for designs built to the old minimum - tightening supply and squeezing the cheapest imports.
Read articleAmorphous Steel Cores: The Efficiency Secret Most Buyers Don't Know About
Amorphous metal cores cut no-load losses by up to 70% compared to conventional silicon steel. With the DOE 2029 efficiency standards approaching, they matter to more transformer buyers than ever.
Read articleIndustry Insights
Why Buying a Transformer Is So Damn Hard (And How to Make It Easier)
The transformer market is fragmented - hundreds of suppliers, no centralized inventory, weeks for quotes. Here's why procurement is painful and how smart buyers navigate it.
Read articleIs Your Transformer Really Made in America? How to Verify Before You Buy
FEOC compliance is critical for tax credits, but 'Made in USA' claims can be confusing. Assembly vs. manufacturing, component sourcing, corporate ownership - here's how to verify what you're actually getting.
Read articleTransformer Lead Times in 2026: The Chickens Have Come Home to Roost
Current transformer lead times and the real reason they're so long. Spoiler: America's dependence on foreign manufacturing created this mess.
Read articleBillions in Tax Credits for American Manufacturing - Are You Capturing Your Share?
The Big Beautiful Bill rewards projects using domestically manufactured transformers. The bonus is huge. The rules are strict. And most developers are leaving money on the table.
Read articleNeed Expert Advice?
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