In Excel (assuming Ae in cm²):
If you are building this sheet for a specific project, let me know: What is the of your transformer? Is it a single-phase or three-phase design?
Aw=IJcap A sub w equals the fraction with numerator cap I and denominator cap J end-fraction
Pcu = Ip² × Rp + Is² × Rs Where winding resistances are computed from wire length and resistivity: R = (ρ × L) / A_wire (ρ for copper ~0.0172 Ω·mm²/m at 20°C). transformer design calculation excel
The total copper area of all turns must fit within the core's window space, adjusted by the window space factor ( Kwcap K sub w
The thickness of the wire (gauge) depends on the current each winding must carry. Primary Current ( Ipcap I sub p ): Secondary Current ( Iscap I sub s ):
In Excel, implement this using lookup functions against your materials database: =VLOOKUP(Selected_Material, Material_Database, 2, FALSE) * Core_Weight Copper Losses ( I2Rcap I squared cap R In Excel (assuming Ae in cm²): If you
Total copper area = (Np × Awp + Ns × Aws) Fill factor = Total copper area / Window area (Aw)
: Never type raw numbers directly into calculation formulas. Always reference cells so your sheet remains fully dynamic.
Vt=4.44×f×Bm×Ac×10-4cap V sub t equals 4.44 cross f cross cap B sub m cross cap A sub c cross 10 to the negative 4 power : =K_Factor * SQRT(Apparent_Power_VA) Excel Formula for Vtcap V sub t : =4.44 * Frequency * Flux_Density * Core_Area * 10^-4 2. Turn Calculations The total copper area of all turns must
): Accounts for insulation between laminations. Typically 0.95 to 0.97. 2. Core Dimension Calculations
, allowing engineers and students to quickly iterate through parameters like turns ratio, core size, and wire gauge. Prefeitura de Aracaju Essential Calculation Categories