Delta-Star or Delta-Y Transformation Calculator

Standard 3 phase circuit can have different topologies, but most common are delta Î” (sometimes also called triangle or pi) and star (sometimes also called Y, T or wye) topology, both given in figure bellow.

Given 3 phase network can be transformed from delta to star and vice versa. Impedances between points A and B, B and C and C and A has to be preserved. Impedances are follows:

By solving above set of equations for** Z _{A}**,

**Z**and

_{B}**Z**, delta-star transformation is obtained, and delta-star transformation calculation is:

_{C}With delta-star transformation, 3 phase circuit is transformed from delta to star topology with equivalent impedance.

Delta-Star or Delta-Y Transformation Calculator

**External links:**

Delta-Star Transformation on Electrical4u

Delta-Star Transformation on Wikipedia

Delta-Star Transformation on electronics-tutorials

## Leave a Reply