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Friday, 7 October 2011
, Posted by 12DEP11F1043 at 01:06
Equations for the transformation from Δ-load to Y-load 3-phase circuit
The general idea is to compute the impedance Ry at a terminal node of the Y circuit with impedances R', R'' to adjacent nodes in the Δ circuit by
where RΔ are all impedances in the Δ circuit. This yields the specific formulae
[edit]Equations for the transformation from Y-load to Δ-load 3-phase circuit
The general idea is to compute an impedance RΔ in the Δ circuit by
where RP = R1R2 + R2R3 + R3R1 is the sum of the products of all pairs of impedances in the Y circuit and Ropposite is the impedance of the node in the Y circuit which is opposite the edge with RΔ. The formula for the individual edges are thus
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