High Impedance Fault Detection in Primary Distribution Network Employing Voltage and Current Sequence Components

In this paper, the HIF detector employing sequence components of current along with voltage is proposed. The proposed HIF detector composed of two components i.e. current HIF detector and voltage HIF detector, in conjunction with existing distribution network set up. The first component analyzes current sequence components when fault appears in the network whereas later analyzes voltage sequence components. The performance of combined detector is evaluated by inducing high impedance fault at different nodes on the IEEE-6-bus radial balanced distribution system. The proposed detector makes use of only current and voltage of system for HIF detection and don't require any additional feature extraction phase. The HIF detector in the proposed paper requires only one unit of sequence converter. The proposed method is simulated in a simulation environment. This method is cost effective, fast and reliable and it detects the fault within one cycle.