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A performance oriented impedance based fault location algorithm for series compensated transmission lines
Affiliation:1. Electrical Engineering Department, Sahand University of Technology, Tabriz, Iran;2. Electrical Engineering Department, Shahid Rajaee Teacher Training University, Tehran, Iran;3. Faculty of Electrical & Computer Engineering, Urmia University, Urmia, Iran;1. Department of Electrical Engineering, Jamia Millia Islamia, New Delhi 110025, India;2. Department of Electrical Engineering, Delhi Technological University, Delhi 110042, India;1. Electrical and Computer Engineering Faculty, Semnan University, Semnan, Iran;2. Electrical Engineering Department, Shahid Beheshti University, A.C., Tehran, Iran;1. Center of Excellence for Power System Automation and Operation, School of Electrical Engineering, Iran University of Science and Technology, P.O. Box: 16846-13114, Tehran, Iran;2. Dipartimento Energia, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy;1. Department of Electrical Engineering, Aliah University, Kolkata 700160, India;2. Department of Electrical Engineering, Jadavpur University, Kolkata 700032, India
Abstract:This paper proposes a performance oriented fault location algorithm for series compensated transmission lines. The algorithm estimates the fault location based on the calculated fault voltage and current using two end measurements and line parameters. Fault location computations are carried out considering faults existed before or after the compensator location on the line. The calculated MOV impedance is the key factor in determining whether or not the fault is located in front of the compensator. A 380 kV transmission line with a series capacitor and an MOV has been tested for various fault types, fault locations and fault resistances. The results show that the algorithm accurately estimates the fault location for all cases.
Keywords:Series compensator  MOV  Fault location  Transmission lines  PMU
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