Transformer Products, Maintenance, Repair & Testing

IPS offers comprehensive maintenance solutions for transformers, encompassing new equipment sales, repairs, and reconditioning. Our expertise is designed to create the best solutions for challenging situations. With our 24/7 service and support, you can trust your critical infrastructure will remain operational, protecting your business from costly interruptions.

IPS buys and sells transformers

We buy, sell, and manufacture transformers to meet your exact needs. Through our network of transformer manufacturing and service centers, we offer one of the largest inventories of new, custom, and remanufactured equipment in the country. With locations across North America, you can count on fast, reliable solutions and shortened lead times.

This inventory includes new, used, and reconditioned transformers:

Single-phase pole and pad-mount transformers
Three-phase pad-mount transformers
MV and LV Dry-type transformers
Substation transformers
Department of Energy (DOE) compliant oil-filled, Distribution Transformers
New and remanufactured medium and high-voltage Power transformers

IPS offers 24/7 service and support for all transformers, with fast delivery, installation, and commissioning. This includes on-site mobile services and emergency support, ensuring you get the service you need when you need it.

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Large industrial power transformer positioned outdoors at an electrical service facility.

Total maintenance solutions for transformers and critical infrastructure

IPS is a total maintenance solution provider for large industrial power consumers who own transformers. We have the engineering and resources to improve system uptime and reliability with both new and legacy assets.

Our transformer specialists repair, refurbish, and rewind all OEM transformers:

Distribution class transformers
Dry type
Power & Auxiliary
Voltage regulating
Rectifier
Special application transformers

We handle in-shop transformer repair and service for units up to 120 MVA auto/230 kV, and higher, based on dimensions and weight. Our field service teams are equipped to handle even larger units, including generator step-up transformers rated up to 345 kV and exceeding 1,000 MVA.

Worker guides a crane lifting a large electrical transformer onto a flatbed truck.

220+ years of combined transformer service and repair experience

IPS has substantial in-house transformer engineering and troubleshooting expertise. We have engineers on staff with transformer design experience from GE, ABB, Hitachi, Delta Star, Westinghouse, and others. We work on all of the leading transformer OEMs.

IPS services, repairs, rewinds, and upgrades transformers and critical infrastructure for:

Manufacturing and Production: Chemical and polymer, oil and gas, refineries, steel mills, paper mills, and mines.
Infrastructure and Utilities: Power generation (coal, natural gas, biomass, hydro, solar, wind, and on-site nuclear services), public utilities, commuter rail lines, and government projects.
Commercial and Institutional: Hospitals, data centers, colleges, and universities.
Specialty Services: Engineering, procurement, and construction (EPC) firms.
Data Centers

Technicians inspect and test the windings and connections of a large industrial transformer.

HV Transformer Testing

IPS Transformer Service Centers are well-equipped to perform transformer testing that meets national and international standards. We provide professional troubleshooting and health assessments as part of our comprehensive IPS maintenance portfolio. IPS can, in-house, perform tests on HV power transformers rated up to 345kV, 1600 kV BIL.

Impulse testing up to 750 kV for acceptance testing and QA
Hi-pot up to 400 kV (applied potential testing)
Induced test up to 230 kV
Induced potential ANSI 57.12.90
Load loss up to 30 MVA base/60 MVA max

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Technician uses portable test equipment to inspect switchgear in an industrial service shop.

Transformer rewinds and repair

IPS offers full rewind capabilities, with premium copper-only rewinds, on any OEM transformer up to 30 MVA base load/60 MVA auto 230 kV. IPS engineers and technicians work with various transformer types:

Distribution class transformers
Substation/transmission class
Arc Furnace
Voltage regulators
Rectifiers
Mobile
Auxiliary

In addition, our transformer experts work with maintenance specialists and engineers on component changeouts and upgrades. These include gaskets, control cabinets, nitrogen systems, auto sampling — dissolved gas, bushings, valves, pumps, fans, etc.

Large industrial power transformer with exposed copper bus bars in an electrical service facility.

Field services for transformer maintenance and repair

IPS field service technicians offer low-voltage testing for insulation resistance, transformer-turns-ratio (TTR), and power factor. We provide on-site oil processing services for degassing, moisture and/or particulate removal, re-inhibiting, and retro-fills.

We also handle transformer upgrades and replacement parts, including bushings, fans, gaskets, gauges, pumps, radiators, and valves.

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