Power Transformers

Power Transformers are essential for efficiently transmitting electricity across long distances.

Ensuring a reliable power supply to homes, businesses, and industries worldwide.

A power transformer is a device that facilitates the transfer of energy between different circuits using electromagnetic principles. What makes it unique from other types of transformers is its specific design for seamlessly integrating with mains power systems, where it deals with high voltages and currents.

Applications

These transformers are critical assets across high-voltage transmission networks and large-scale power systems. PTI power transformers are engineered for use in:

Utilities & Transmission Operators – Step-up and step-down transformers supporting grid stability and long-distance power transmission.
Mining & Heavy Industry – Ruggedised designs for remote operations, high load variability, and harsh environmental conditions.
Renewable Energy Projects – Grid connection and integration for wind, solar, and hybrid power projects.
Infrastructure & Industrial Facilities – Reliable voltage transformation for ports, rail, data centres, and large manufacturing sites.

Each transformer is designed to meet site-specific electrical, environmental, and regulatory requirements.

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Our Power Transformers

Ratings available from 5 MVA to 180 MVA 3-phase up to 240 kV
Designed to IEC and AS/NZ Standards (ANSI, UL, and NEMA available on request)
Mineral or Ester oil filled (K class fluid)
Providing the link between electrical transmission and distribution
K rated transformers meeting the demands of nonlinear loads
De energised or auto tap changer
Optional online condition monitoring
Specialised skid substation transformers for mining applications

Why Power Transformers International (PTI)?

PTI is a global supplier of high-performance power and distribution transformers serving mining, utilities, renewables, and infrastructure across Asia, Africa, Australia, and the Americas. With over 28 years of industry experience, PTI offers a complete turnkey solution; from design and in-house fabrication to full Factory Acceptance Testing (FAT) aligned with ISO/IEC 17025:2017. Our “one-stop-shop” model enables fast-tracked delivery, rigorous QA/QC, and competitive pricing to meet demanding production schedules.

Turnkey transformer solutions up to 180 MVA
Best-in-class lead times and pricing
Reverse engineering for strategic spares
Global supply with local support
Compliance with IEC, AS/NZS, ANSI/IEEE, and MEPS standards
FAT, warranties, and technical assistance included

Each power transformer is custom designed and manufactured and subjected to comprehensive tests and specified type tests, in accordance with the relevant standards and customer requirements. Contact our team today for a comprehensive assessment and quote based on your specific transformer requirements.

Lead times vary by rating and configuration, but PTI specialises in optimised manufacturing schedules to support urgent and time-critical projects. We'll work closely with you throughout the entire design and manufacturing process. From initial enquiry to factory testing and delivery, you'll be closely guided and informed by our expert team the entire way.

We offer a complete turnkey solution for power transformers; from design and in-house fabrication to full Factory Acceptance Testing (FAT) aligned with ISO/IEC 17025:2017. Our “one-stop-shop” model enables fast-tracked delivery, rigorous QA/QC, and competitive pricing to meet demanding production schedules.

Yes, we supply power transformers in Africa, Asia, Australia and the Americas. Our global sourcing network includes ISO-accredited partners in Thailand and China, supported by offices in South Africa, Australia, and the USA. We manage end-to-end logistics, compliance, and documentation across borders, ensuring seamless delivery and support.

Yes. we offer custom-engineered solutions, including reverse engineering for legacy units and strategic spare replacements. Contact our team today, we'll be in touch within 24 hours of receiving your enquiry. Email info@powertransformers.com.au or call +61 414 961 629.