In this paper, voltage sag and voltage Total Harmonic Distortion (THD) in the distribution network are studied. The proposed electrical network is modeled by electrical source, Line and source impedances. It is assumed that the electrical load of this network is a sample electronic load. This load is a rectifier bridge where its output terminal is connected to a capacitor bank and a linear resistance. The distribution network power quality is analyzed by changing the load impedance, the capacitor bank and number of load in the network. The Voltage sag and THD in the distribution network are studied using PSCAD and MA TLAB software.