DC Electrical Circuit Analysis: Delta-Wye Conversions

Certain circuits cannot be solved using a basic series-parallel combination approach, and require more advanced techniques. One potentially useful technique is delta-wye conversion. This conversion allows a subcircuit with three terminals to be transformed from a wye (also called Y or T) configuration with a central common point, into an equivalent three terminal circuit in a delta (or pi) configuration arranged in a loop. The reverse is also possible.
Reference: DC Electrical Circuit Analysis; Chapter 6, section 7.
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[@LousyPainter]

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