Answer / Shri Kant

Designing a variac (Variable Autotransformer) for high-power applications can be challenging due to the large amount of current and energy involved. Here's a simplified approach:n
1. Determine the minimum and maximum voltage range required for your application.
2. Choose a suitable transformer core with appropriate dimensions based on the power level (in this case, approximately 200kW).
3. Design the variac winding configuration to cover the desired voltage range while considering the electrical specifications of the core material, insulation, and cooling system.
4. Implement feedback control mechanisms to maintain precise voltage regulation during operation.

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