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Transformer Design Calculator

Transformer Design Calculator — Magnetics Engineering
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Voltage & Power

10 V1 kV100 kV
1 V100 V10 kV
10 VA1 kVA10 MVA

Frequency

Core Material

Formulas

$a = N_1/N_2 = V_1/V_2$
$E = 4.44 \cdot f \cdot N \cdot B_{max} \cdot A_c$
$I_1 = S/V_1,\quad I_2 = S/V_2$
Turns Ratio a = N₁/N₂
turns ratio
Primary Turns N₁
turns (A_c=10 cm² assumed)
Secondary Turns N₂
turns
1. B-H Hysteresis Loop (Selected Core Material)
2. Voltage & Current Waveforms (2 Cycles)
3. Efficiency η vs Load Factor (%)