School of Electrical Engineering;
Southwest Jiaotong University;
Chengdu 610031;
China;
Department of Electrical Engineering(Bannu Campus);
University of Engineering and Technology Peshawar;
Peshawar;
Pakistan;
Department of Electrical Engineering;
NED University of Engineering and Technology Karachi;
Karachi;
Pakistan;
Railway electrification; Medium voltage direct current(MVDC)railways; Rail potential; Stray current; Stray corrosion;