High-Voltage Power Transformers,
Unmatched Speed
Our transformers are custom-built to your specifications, up to 400 MVA and 500kV.
Global Strength. Local Insight.
Unmatched Performance.
-
Unparalleled Speed to Market
Our delivery lead times are the fastest you’ll find. Don’t wait two to four years — we’ll deliver your transformers within 4 to 20 months.
Northfield’s flexible logistics partnerships allow us to scale production to meet urgent deadlines, leading to a proven track record of on-time, on-spec deliveries, from single-unit needs to bulk orders of the biggest transformer units.
-
End-to-End Expertise
We’re your single source for design, procurement, quality assurance, logistics, and ongoing maintenance.
Our global network of vetted power transformer manufacturers and service providers helps you get exactly what you need, when you need it. And our in-house engineering and project management teams ensure the quality you expect.
-
Uncompromising Quality Assurance
Our quality assurance is led by British transformer experts with over 100 years of combined experience at GE, ABB-Hitachi, Siemens, and Alstom.
The Northfield quality team oversees a rigorous process of design reviews, factory audits, project tracking, and factory acceptance testing (FAT). That all leads to transformer units you can trust, tailored to your specific requirements.
-
Global Reach, Local Knowledge
Located in Northern Virginia, the U.S. data center hub, and backed by global manufacturing partners, we offer deep regional market insight for your strategic advantage.
Our IEC, ANSI, IEEE, NERC, and ISO-9001 compliant units meet the highest standards for energy efficiency, safety, and grid reliability.
| HV [kV] | MV [kV] | LV [kV] | POWER [MVA] | Northfield lead time | Average market lead times |
|---|---|---|---|---|---|
| – | 34.5 | 0.415 | 1-10 | 4 months | 12 months |
| 69 | 13.8 | – | 10-30 | 6 months | 26 months |
| – | 40-60 | 12 months | 30 months | ||
| 34.5 | – | 60 | 16 months | 30 months | |
| 138 | 34.5 | 13.8 | 72/96/120 | 18 months | 34 months |
| 108/144/180 | 20 months | 36 months | |||
| 230 | 34.5 | 13.8 | 108/144/180 | 20 months | 38 months |
| 144/192/240 | 22 months | 40 months | |||
| 203/270/340 | 22 months | 42 months | |||
| 34.5/-34.5 | 13.8 | 199/264/330 | 22 months | 44 months | |
| 345 | 34.5 | 13.8 | 100/133/167 | 20 months | 38 months |
| – | 120/160/200 | 23 months | 42 months | ||
| 13.8 | 150/200/250 | 24 months | 45 months |
Have a Question? We’re Here.
Let's talk timelines, specs, and solutions tailored to your needs. No matter where you are in the world, we'll make sure you can power on.
The Right Choice for Your Transformer Needs
Data Centers
Our end-to-end service lets you focus on providing for your customers while we handle the complexities of transformer procurement, logistics, installation, and maintenance.
Ensure seamless grid integration and deliver the reliable uptime your customers expect.
Renewable Energy
The passing of the “One Big Beautiful Bill” means clean electricity production and investment tax credits are going away. You’ll still receive those credits when you place your transformer orders by early 2026.
We deliver transformers faster than anyone else and make sure you meet all Safe Harbor requirements to maximize your tax and energy credits.
Northfield transformers are designed to reduce energy loss and use biodegradable, non-toxic insulating oils. Stay safe, under budget, and earn from your power before it’s too late.
Public Utilities
Aging infrastructure demands the right solutions, and we help you simplify grid modernization. No matter the environment, our transformers are built for longevity and custom-engineered to ensure precise voltage regulation and enhanced grid stability.
What Our Clients Say
Ready to Power Your Next Project?
With custom designs, fast delivery, and end-to-end services, we’re here to accelerate your power infrastructure projects.