Three-Phase Transformer Designer

Enter line voltages, power and connection; results update live.

Inputs

Enter line voltages and power.

Connection Y/D

Frequency Hz

Input voltage V

Output voltage V

Core material sets B

Flux density T — editable override

Core area cm² (optional)

Stacking factor 0–1

Stack thickness mm (optional)

Load power W

Current density A/mm²

Core temperature °C

Window area cm² (optional)

Window limit % utilization

Company / Client PDF header

Project name PDF header

Results

Transformer Design Report

Magnetic

Phase voltage (in) —V

Required core area —cm²

Primary turns (per phase) —turns

Secondary turns (per phase) —turns

Currents

Phase current —A

Line current —A

Wire

Primary wire (each phase) —mm² · —mm · AWG —

Secondary wire (each phase) —mm² · —mm · AWG —

Losses & Thermal

Copper loss (I²R) —W

Iron loss @Tcore —W

Iron loss @20°C —W

Est. temperature rise —K

Copper mass (total) —kg

Window utilization —%

Window winding layout

Primary winding Secondary winding

Efficiency —%

Impedance

Short-circuit impedance (%Z) —%

Resistive component (%R) —%

Leakage reactance (%X) —%