By using the way of equivalent transforming which uses resistor Y connection and triangular connection and the way of equipotential point equivalently transform the same one symmetric linear resistor circuits.
通过用电阻星形联接与三角形联接等效变换法和等电位点变换法对同一对称线性电阻电路进行等效变换 ,可以发现 ,在对对称性电阻电路进行等效变换时 ,等电位点变换法可使等效变换过程和等效变换计算都大为简化。