The Delta→Star and Star→Delta conversion of an electric network require intensives calculations. This program saves a lot of time and can be used for complex networks as well as DC systems with only resistors, making it very useful in electrical engineering.

See the schematics.

Formulas :

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delta→star : N=Z12+Z23+Z31,     Z1=(Z12*Z31)/N,   Z2=(Z12*Z23)/N,   Z3=(Z31*Z23)/N

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star→ delta : T=Z1Z2+Z2Z3+Z3Z1,    Z12 =T/Z3,      Z23 = T/Z1,       Z31 = T/Z2

Unity Z (Ohm)