Formulas used
- Star to delta: R12 = (R1R2 + R2R3 + R3R1) / R3
- Delta to star: R1 = R12 x R31 / (R12 + R23 + R31)
- Balanced: R(delta) = 3 x R(star)
Frequently asked questions
Which node does each resistor connect to?
R1, R2 and R3 each touch nodes 1, 2 and 3. R12 sits between nodes 1 and 2, R23 between 2 and 3, and R31 between 3 and 1.
Is the conversion exact?
Yes. The two networks behave identically as seen from the three terminals.