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This study proposes a discrete Walsh Hadamard transform (DWHT) based protection technique for the detection of fault and identification of faulty phase in series capacitor compensated three phase transmission line connected with distributed generation (DG). DWHT has been used for processing of the three phase current signals. To recognize the reliability of the proposed protection technique, it is tested for variation in fault type, fault location, fault resistance, ground resistance and fault inception time. Simulation results of DWHT-based proposed technique exemplify that the proposed technique correctly detects the faults and identifies the faulty phase accurately. Keywords: Discrete Walsh Hadamard transform, distributed generation connected series capacitor compensated three phase transmission line, fault detection, faulty phase identification

international journal of engineering, science and technology andb. lagos

Protection technique for series capacitor compensated three phase transmission line connected with distributed generation using discrete Walsh Hadamard transform