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Pacific Transformer designs and manufactures a line of pre-designed guitar amp transformers that can be purchased directly through our ecommerce site, Pacific Audio Magnetics.

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INDUSTRY > UTILITIES

Custom magnetics for the power grid and utility infrastructure

From substations and metering systems to grid monitoring and relay protection, Pacific Transformer engineers custom magnetics for the utilities that keep the lights on. We build instrument transformers, current transformers, control power transformers, and custom magnetics for California's largest utilities and beyond — delivering the accuracy, durability, and compliance that utility-grade applications demand.

Expert Partner

Powering the Grid, One Transformer at a Time

Pacific Transformer has been supplying custom magnetics to California's electric utilities for decades. Our transformers are found in substations, metering cabinets, and grid monitoring installations across the state — from Southern California Edison and PG&E to LADWP. Whether you need instrument transformers for revenue metering, control power transformers for substation switchgear, or custom magnetics for smart grid infrastructure, we engineer and build to utility-grade standards with the reliability and traceability your programs require.

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Whether you need replacement transformers for aging substation equipment, custom magnetics for a new metering program, or instrument transformers for grid modernization, Pacific Transformer has the engineering depth and production capability to deliver. Free design assistance, 24-hour quotes, and prototypes in as little as 48 hours.

Experience in Utility Applications

Pacific Transformer is a trusted magnetics supplier to some of the largest electric utilities in the United States. Our products are installed in critical grid infrastructure across California, and our engineering team understands the standards, testing requirements, and reliability expectations that utility customers demand.

40+ Years

Utility & Grid Applications

UL, CSA & ETL

Recognized Manufacturer

48 Hours

Prototype Turnaround

No Minimum

1 to 10,000+ Units

Trusted by the Leaders

Southern California Edison
PG&E
LADWP

FREQUENTLY ASKED QUESTIONS

Utility Transformer FAQs

We build instrument transformers, current transformers, potential transformers, isolation transformers, control power transformers, auxiliary transformers, and custom magnetics for metering, relay protection, SCADA systems, and substation control equipment used by electric utilities.
Yes. We are a trusted supplier to Southern California Edison, Pacific Gas & Electric (PG&E), and the Los Angeles Department of Water and Power (LADWP). Our transformers are installed in substations, metering infrastructure, and grid monitoring systems throughout California.
Yes. We design and manufacture transformers for advanced metering infrastructure (AMI), distribution automation, grid sensors, and smart grid communications equipment. Our engineers can work with your team to develop custom magnetics that meet the specific voltage, current, and accuracy requirements of modern grid technology.
We are a UL, CSA, and ETL recognized manufacturer with ISO 9001 quality management. We can certify to IEEE, ANSI, and IEC standards as required for utility-grade equipment. Our testing capabilities include hi-pot, turns ratio, insulation resistance, and burden testing.
Yes. We engineer transformers with materials and insulation systems designed for extreme temperatures, UV exposure, humidity, and the harsh conditions found in outdoor substations and pole-mounted equipment. Our varnishing and encapsulation processes provide long-term environmental protection.
Yes. We frequently reverse-engineer and manufacture replacement transformers for aging utility infrastructure. If the original manufacturer no longer exists or the part is discontinued, we can build a form-fit-function replacement from a sample or available documentation.
No. We work with utilities from single prototype or replacement units to production runs of 10,000 or more. Whether you need one replacement transformer for a substation or a production run for a new metering program, we can support you at any volume.
We offer 24-hour quotes, free design assistance, and prototypes in as little as 48 hours. For production orders, lead times depend on complexity and volume, but our two lean manufacturing cells allow us to respond quickly to utility schedules and emergency replacement needs.

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