Abstract: “The paper presents voltage stability analysis of radial distribution networks for composite type of loads without and with considering shunt capacitor. A new voltage stability index is proposed for identifying the node, which is most sensitive to voltage collapse. The effectiveness of the proposed method without and with considering shunt capacitor is demonstrated through an 12.66 kV radial distribution networks consisting of 33 nodes.”

Keywords: Voltage stability index; radial distribution system; shunt capacitor; voltage collapse; weakest node