Star To Delta Conversion
Calculator

Inputs

Delta resistance Ra (Ω)
43.333333

Results

Delta resistance Ra (Ω)
43.333333
Delta resistance Rb (Ω)
32.5
Delta resistance Rc (Ω)
65

Electrical results

Delta resistance Ra (Ω)43.333333
Delta resistance Rb (Ω)32.5
Delta resistance Rc (Ω)65

formula-map diagram

Delta resistance Ra (Ω)
43.333333
Delta resistance Rb (Ω)
32.5
Delta resistance Rc (Ω)
65

Electrical relationship

Formula

Ra = (R1R2+R2R3+R3R1)/R2 ; Rb = .../R3 ; Rc = .../R1

= 43.333333333333

Note

This is a simplified model: it applies the textbook relationship to the numbers you entered and assumes ideal components, steady-state sinusoidal conditions, balanced loads and copper resistivity of 0.0172 Ω·mm²/m at 20 °C. It ignores component tolerances, temperature drift, skin effect, harmonics, inrush, transformer and battery losses, and it is not a substitute for the wiring code that applies where you are. Have any installation sized and verified by a licensed electrician or engineer.

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