WHO WE ARE
Based in Sydney, we are a transformer manufacturer with over 50 years of experience delivering high-quality, custom-engineered transformer solutions. Our expertise covers a wide spectrum of transformer types—including dry-type, oil-filled, gas-insulated, enhanced-protection, and less-flammable units. We also design and manufacture integrated kiosk solutions with low-voltage (LV) and high-voltage (HV) switchgear, custom terminations, and bespoke finishes tailored to unique project requirements.
With half a century of engineering excellence, our company has continuously evolved—building on the combined knowledge of seasoned engineers and strategic acquisitions over time. This wealth of experience has allowed us to consistently solve complex transformer challenges, saving our clients time, money, and operational downtime through persistent innovation, investigation, and quality execution.
Since 2018, we’ve expanded our product offerings to include high-voltage transformers, oil-filled units, current and voltage transformers (CTs and VTs), and gas-insulated designs—broadening our capacity to support a wider range of applications and industries.
At Hunter Transformers, we engineer and manufacture reliable, high-performance transformer systems tailored to your unique specifications. From dry-type to oil-filled, gas-insulated, and kiosk-integrated units, our solutions are designed to deliver long-term value, safety, and compliance across a wide range of industries.
With over 50 years of experience, we work closely with our clients to ensure each transformer is purpose-built, properly documented, and tested to meet Australian standards. Whether you need a bespoke unit for a private development or a full-scale solution for infrastructure or mining, we bring deep technical expertise and problem-solving focus to every project.
Our Capabilities Include:
We work with clients across a wide range of industries throughout Australia.
Whether we are making the transformer in our factory in Sydney, or inspecting the materials and build in our transformer manufacturer’s factories in China we maintain a very high standard of attention to detail, and focus on compliance.
We handle complex builds from custom units to $4M+ projects, ensuring excellence and supporting clients with flexible credit terms for smooth, timely project delivery.
Every product—local or overseas—meets strict quality standards, backed by regular site audits and compliance checks to ensure reliable performance and on-time delivery.
Over our 50 years of specialist transformer manufacturing , we have learnt that the most important part of our business, is our customers.
Regular visits to audit the progress of our overseas supplier’s, and stay in touch with what maintains the best flow for our customers.
These customer’s have come from many different industries: key infrastructure, mining, commercial, and private contractors.
Each coming to us with a different set of problems, and have had them resolved with a unique set of solutions.
TEAM
Our Earthing Transformers (Oil filled), are great for situating in your system which requires the addition of a neutral for earth protection.
Our Dry Type Transformers (AS60076.11) are great for more protected, indoor environments, where avoidance of potential oil spills is critical. The transformer has much less maintenance required in comparison to oil-filled alternatives
Our Enhanced Protected Transformers (Less flammable K-type, KNAN, per AS 2067:2016) are the perfect installation for more exposed, outdoor environments which are situated close to other installations (eg. non-fire rated wall). Being enhanced protected, the transformer has greater tank structural design, alongside a high-rate pressure relief valve. The customer is responsible for installation of HV and LV fuses to maintain Enhanced Protected certification.
Our Mineral Oil Filled Transformers (ONAN, as per AS 60076) are the perfect installation for more exposed, outdoor environments. The steel tank, filled with oil, which surrounds the transformer, offers a high resistance to external corrosion, and the insulating oil assists in clearances required for the transformer design.
Our GNAN transformer is an advanced electrical power conversion system designed for high-performance applications, though it requires careful environmental considerations as it lacks explosive-proof certification.
