Custom Power Transformers Manufacturer
Altran is a custom manufacturer of precision-engineered power transformers designed for critical applications across a wide range of industries. Our CSA, UL, & CE-certified facility in Crystal Lake, Illinois, allows us to build high-quality products with rapid lead times. We collaborate closely with OEM engineers to solve complex design challenges while providing advanced thermal management, EMI shielding, and potting/encapsulation solutions.
Research & Development Power Transformer Capabilities
At Altran, we specialize in designing and building custom power transformers tailored to specific voltage, current, and environmental requirements. Our engineers develop each design in close collaboration with our clients to meet performance, dimensional, and compliance specifications.
We support a wide range of core geometries and winding configurations, including:
- EI Laminations: A standard and cost-effective solution for many power applications.
- UI Laminations: Used for high-power applications and specific three-phase configurations.
- Toroidal Cores: Provide maximum efficiency and low magnetic interference in a compact form factor.
- Split Bobbin Designs: Increases safety and electrical isolation between primary and secondary windings.
- Custom Multi-Tap Secondary Windings: Delivers multiple voltage outputs from a single transformer to meet versatile power needs.
Every transformer we build delivers optimal efficiency, safety, and long-term reliability.
American-Made Quality and Reliability
All Altran power transformers are designed and manufactured in our Crystal Lake, Illinois, facility. With over four decades of experience in transformer design and development, we bring deep engineering knowledge and practical manufacturing expertise to every project. Our custom solutions are built to endure and perform.
We maintain readiness for ISO 9001, UL, and RoHS certifications with plans for ITAR and NADCAP compliance to serve regulated industries. The comprehensive testing protocols we utilize validate electrical performance, thermal characteristics, and environmental durability before shipment. This commitment to quality ensures long-term reliability in critical applications where transformer failure is not acceptable.
What Are Power Transformers?
Power transformers are electromagnetic devices that transfer electrical energy between circuits through magnetic coupling without changing frequency. They operate on the principle of electromagnetic induction, where alternating current in the primary winding creates a varying magnetic field that induces voltage in the secondary winding. The turns ratio between primary and secondary windings determines whether the transformer steps the voltage up or down for specific application requirements.
Modern power transformers serve essential functions in electronic systems, power supplies, and industrial equipment by providing voltage conversion, electrical isolation, and impedance matching. They enable safe and efficient power distribution while protecting sensitive circuits from electrical disturbances. Their robust construction and reliable operation make them fundamental components in everything from consumer electronics to industrial automation systems.
How Do They Work?
Power transformers operate through Faraday’s law of electromagnetic induction, where a changing magnetic field in the primary winding induces an electromotive force in the secondary winding. The magnetic core, typically made from laminated silicon steel or ferrite materials, provides a low-reluctance path for magnetic flux while minimizing energy losses. This efficient energy transfer occurs without a direct electrical connection between the input and output circuits, providing galvanic isolation for safety and noise reduction.
Industries We Serve
While we are known for our work in medical imaging devices, our custom power transformer solutions extend to a broad range of industries, including:
- Rail & Transportation
- Electronics Manufacturing
- Power Electronics & Power Supplies
- Renewable Energy Systems
- Test & Measurement Equipment
- Industrial Automation
- HVAC Build Controls
- Data Centers
High-Quality Power Transformers from Altran
At Altran, we combine decades of magnetic component expertise with modern manufacturing capabilities to deliver customized power transformers that exceed performance expectations in critical applications. Our engineering team works closely with customers to optimize designs for efficiency, reliability, and cost-effectiveness while maintaining strict quality standards throughout production. Contact us to discuss your power transformer requirements and discover how our customized, American-made solutions can solve your toughest power challenges.