The Delta resistance between two terminals is the sum of the Star resistors connected to those terminals plus their product divided by the third resistor.
), then each Star resistor is exactly one-third of the Delta value ( Star to Delta Transformation ( Y→Δcap Y right arrow cap delta star delta transformation problems and solutions pdf
To find the equivalent Star resistance connected to a specific terminal, multiply the two adjacent Delta resistors and divide by the sum of all three Delta resistors. The Delta resistance between two terminals is the