| Y-delta Transform |
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Information AboutY-delta Transform |
| CATEGORIES ABOUT Y-Δ TRANSFORM | |
| electrical circuits | |
| electric power | |
| graph theory | |
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(A Δ-Y Transformer , on the other hand, is an electrical device that converts Three-phase Electric Power without a neutral wire into 3-phase power with a neutral wire. It is generally built from 3 independent Transformer s.) BASIC Y-Δ TRANSFORMATION The transformation is used to establish equivalence for networks with 3 terminals. Where three elements terminate at one point (node) and none is a source, the node is eliminated by transforming the impedances. For equivalence, the impedance between any pair of terminals must be the same for both networks. Delta-to-Wye transformation equations :::General Idea: : : : Balanced System: Wye-to-Delta transformation equations :::General Idea: : : : IN GRAPH THEORY In Graph Theory , the Y-Δ transform is used in contexts where there are no resistances labeling the edges, so it simply means replacing a wye Subgraph of a graph with the delta subgraph. A Y-Δ transform preserves the number of edges in a graph, but not the number of vertices or the number of Cycle s. Two graphs are said to be Y-Δ equivalent if one can be obtained from the other by a series of Y-Δ transforms and their inverses, Δ-Y transforms. The Petersen Graph Family is an example of a Y-Δ Equivalence Class . SEE ALSO
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