Buck-Boost Calculator

Buck-Boost Sizing

Quick Calculator

Enter your system details to size a buck-boost transformer and see suggested secondary voltages.

System phase

Frequency

Existing Line Voltage (V)

Desired Load Voltage (V)

Load basis

Amps kVA

Load current (A)

Rule of thumb: Transformer kVA ≈ V_change × I_line / 1000 (per unit). For three-phase, total ≈ 3 × per-unit.

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