100 kVA Three Phase Autotransformer, 220V to 380V/240V

Q1: How does the shielded winding design improve safety in this 100 kVA autotransformer?

This three-phase autotransformer uses a copper or aluminum shield to physically and electrically isolate the primary and secondary windings from each other. This separation reduces the risk of voltage crossover and electromagnetic interference between circuits, providing a safer and more stable operating environment for connected equipment — particularly important at the 100 kVA capacity level.

Q2: Can the voltage specifications of this 100 kVA three-phase autotransformer be customized?

Yes. While the standard setup converts three-phase 380V input to 220V or 200V output on 50Hz or 60Hz systems, custom input and output voltage configurations are available. This makes the 100 kVA autotransformer adaptable to a wide variety of international power supply standards and project-specific requirements.

Q3: What winding material options are available, and how should I choose between them?

This dry-type autotransformer is offered with either copper or aluminum winding. Copper is recommended for applications where maximum conductivity and efficiency are priorities, while aluminum offers a more economical option for cost-sensitive procurement. Both materials are engineered to deliver reliable, long-life performance across the full 100 kVA output range.