Y-delta transformation

Y-delta transformation

[′wī ′del·tə ‚tranz·fər‚mā·shən]
(electricity)
One of two electrically equivalent networks with three terminals, one being connected internally by a Y configuration and the other being connected internally by a delta transformation. Also known as delta-Y transformation; pi-T transformation.
References in periodicals archive ?
In section 6 we show how superurban renewal specializes to the Y-Delta transformation for the Ising model.