What are Auto Transformers?
Ampcontrol auto transformers provide efficient voltage adjustment using a single, shared winding. They deliver reliable power to your equipment while saving space and cost.
Unlike conventional transformers with two separate windings for the primary and secondary circuits, an auto transformer uses a common winding that is electrically connected to both the input and output. By sharing primary and secondary windings, only a portion of the winding is required to achieve voltage transformation, resulting in a compact design, lower cost, and improved energy efficiency.
This makes them frequently used in power applications to interconnect systems operating at different voltage classes, such as 132kV to 66kV for transmission and ideal for industrial power systems, mining operations, or any application where reliable voltage control is critical.
What Sets Ampcontrol Apart
Our engineers identify the most efficient, reliable transformer for your power application.
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Standard Auto Transformers
Ampcontrol offers a range of auto transformers and variable autotransformers to suit diverse operational needs. Explore our range of solutions to find the right transformer for your system
Technical Specifications & Features
Ampcontrol designs auto transformers to perform reliably in demanding conditions. To help you avoid downtime and costly modifications, our custom configurations and flexible tap options allow for seamless integration into your system. Key features can include.
- Primary and secondary windings integrated into a single winding make for efficient voltage transformation.
- Voltage adjustment options provide either a consistent average voltage or a tailored voltage output for critical electrical equipment.
- Compact, lightweight winding transformer design makes installation easier and reduces project costs.
- Options for natural or forced air cooling are available for power rating and load requirements.
- Each unit is carefully tested to confirm performance under load, ensuring primary and secondary circuits maintain the desired average voltage and electrical connections are secure.
Australian Standards & Compliance
Ampcontrol auto transformers comply with Australian standards, and relevant IEC standards. These standards cover primary and secondary windings, voltage ratio, electrical isolation (or its absence), and general safety requirements.
Transformers undergo comprehensive testing, including temperature rise, impulse withstand, and type tests. Ensuring the transformer performs as expected, and the electrical connections can handle the specified power rating safely.
Comparisons, Trade-Offs & Considerations
Frequently Asked Questions
We answer some of your frequently asked questions around industry, energy, and our solutions and services.
Can I use an auto transformer if isolation is required?
How do I know what tapping/voltage ratio I need?
Our Service Offering
With an innovative spirit, industry-leading skills and a solutions-led approach, our services work toward sustainable, future-focused outcomes.
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