Star delta conversion
Convert three-terminal positive-resistance networks and check terminal equivalents.
Development preview. Check the assumptions below before relying on a result. Calculations run in your browser.
How it calculates
Model: Y→Δ: RAB = (RA RB + RB RC + RC RA)/RC. Δ→Y: RA = RAB RCA/(RAB+RBC+RCA).
Assumptions
- The third terminal is open during each terminal-resistance check. Output order is star A/B/C or delta AB/BC/CA.
Worked example
These are the calculator's default inputs. Change any input above to recalculate.
Inputs
- Conversion
- star-to-delta
- Star A / delta AB
- 100 Ω
- Star B / delta BC
- 100 Ω
- Star C / delta CA
- 100 Ω
Results
- Delta RAB
- 300 Ω
- Delta RBC
- 300 Ω
- Delta RCA
- 300 Ω
- Terminal A–B
- 200 Ω
- Terminal B–C
- 200 Ω
- Terminal C–A
- 200 Ω