Q1: What voltage configurations are available for this 15 kVA three-phase autotransformer?
The standard configuration steps down 3-phase 380V to 220V/200V. The 400V to 230V/220V configuration is also available, along with other input and output voltage combinations that can be customized to meet your specific project requirements. Please contact us with your voltage specifications before ordering.
Q2: What is F-class insulation, and why does it matter for an industrial autotransformer?
F-class insulation refers to a thermal classification that allows winding materials to withstand continuous operating temperatures up to 155Ā°C. For a 15 kVA autotransformer used in heavy industrial applications, F-class insulation provides a meaningful safety margin over lower-rated classes, reducing the risk of insulation degradation under high-load or high-ambient-temperature conditions.
Q3: How do I choose between self-cooling and wind-cooled configurations?
Self-cooling relies on natural air convection and is suitable for standard industrial installations with adequate ventilation. Wind-cooled configurations use forced airflow to dissipate heat more efficiently and are recommended for high-duty-cycle operations, enclosed panel installations, or environments where ambient temperatures are elevated.
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