A well‑organized Excel sheet has four main sections:
Worked example: 5 kVA, 230/115 V, 50 Hz Inputs (choose these cells in Excel) transformer design calculation excel
: Automatically calculates the required Area Product (AP) , which is the product of the core cross-sectional area and the window area. Users can input parameters like frequency and flux density to derive the core diameter and number of steps. A well‑organized Excel sheet has four main sections:
D1: As_cu = Is / J = 1.5 / 2.5e6 = 6e-7 m² = 0.6 mm² → dia ~0.87 mm (SWG 20) D2: Rs = ρ * MLT * Ns / As_cu = 1.724e-8 * 0.06 * 174 / 6e-7 ≈ 0.30 Ω D3: Copper loss secondary = 1.5² * 0.30 = 0.675 W transformer design calculation excel
Primary current: Ip = VA / Vp (add 10% for magnetizing current in small designs) Wire area: A_wire = I / J (J in A/mm²) Diameter: d = 2 * sqrt(A_wire / π)