Malla Reddy College of Engineering and Technology (MRCET)
Department of EEE ( 2017-18 )
Electrical Circuits EEE
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Star to Delta and Delta to Star Transformations:
Like in series and parallel connections, electrical components may be connected in Star or Delta
configurations as shown in the figure below (with Resistances). Many a times circuits have to be
transformed from Star to equivalent Delta and Delta to equivalent Star configurations such that
the net terminal Resistances ( Impedances)across the terminals are the same. We will show this
transformation methodology and the resulting configurations for both Delta to Star and Star to
Delta one by one.
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