Primary Transformers — Critical Power Equipment

What We Do

When all others fail, we don't.

Primary engineers, designs, and builds high-quality large and medium power transformers, distribution transformers, and specialty transformers for demanding customers with demanding deadlines.

We are the turn-key solution for all of your transformer needs: Spec assistance, fast quoting, transparent progress monitoring, manufacturing, testing, logistics, installation, warranty coverage, and service.

We've got you covered.

Why Use Primary?

Your Options Without Primary

Wait 3–5 years with an incumbent OEM

Domestic OEMs are backlogged. Your project timeline doesn't care.

Buy blind overseas

Unvetted OEMs with no US track record, uncertain IEEE compliance, no local service, and warranties you can't enforce.

The Primary Solution: The Best of Both Worlds

Fastest lead times on earth: Fabrication takes a matter of weeks

We've built the supply chain to deliver power transformers faster than any other source.

Full IEEE compliance, guaranteed

Every unit is built to spec. Our factories have verifiable US track records.

US-based service & warranty

Local teams, enforceable warranties, and support that doesn't end at the dock.

Industry-Best Lead Times

Primary has manufacturing partnerships with some of the world's experienced and capable factories. Our factories have long histories in the US market and demonstrable track records exceeding IEEE requirements. We've vetted every factory on earth and formed partnerships with the top six facilities.

White Glove Design Service

Some of our customers are small teams and first-time buyers. We're happy to help customers develop and tweak their specifications with their project's requirements in mind. With specifications in hand, we custom design your unit(s) and quickly provide your fully delivered cost and lead time.

Track Your Order in Real Time

We provide our customers 24/7 visibility into the status of their order. Watch your transformer move through design, manufacturing, testing, and shipping.

Designed for Reliability

We design our transformers, optimize our supply chains, price our projects, and schedule our deliveries with predictability in mind.

24/7 Transformer Support

We are always available and eager to help, be that early in your procurement process or after the transformer is up and running.

Our Products

Fully Compliant,
High-Quality Transformers,
Any Size,
On Time.

01

Power Transformers

Large and medium power transformers for generation, transmission, and substation applications. 10 – 500+ MVA.

02

Distribution Transformers

Oil-filled or dry-type. We can make it all. 30 kVA to 10 MVA+

03

Special Purpose Transformers

Odd use case? We can engineer and produce units for any harsh environment.

Lifecycle Services

Your Turn-Key
Transformer Partner

Primary is ready to manage commissioning, maintenance, and emergency response. We have a coast-to-coast service network that is one call away.

We stand by the reliability of our transformers, providing industry-leading warranty coverage.

Meet Our Engineers

Quality & Compliance

Quality is in our DNA

Our manufacturing facilities are ISO-certified and exceed ANSI, IEEE, and IEC standards.

ISO-Certified Facilities

Manufacturing quality management

NABL-Certified Testing

Accredited laboratory validation

IEEE / ANSI / IEC

Full international standards compliance

90+ GVA Capacity

Industry-leading manufacturing scale

75%+ Reduced Lead Times

vs. industry-standard lead times

<24 Hour Response Time

NETA-accredited service partners

Industries

Powering Any Application

Data Centers

Engineered for low losses and continuous heavy loads.

Renewables

Transformers designed for solar, wind, battery, and thermal storage applications.

Utilities

Grid ready, LSIPA compliant.

Oil & Gas

NEMA-rated, explosion-proof transformers for any environment, remote or offshore.

Industrial

Ready for any environment across heavy industry.

Your Primary Source for On-Time Transformers.

What We Do