Determining Transmission Line Parameters from GPS Time-Stamped Data

Real-time computation of values on transmission lines has in the past not been a viable option. But with the introduction of affordable GPS time-stamping to industry this is changing. Real-time values measured hundreds of kilometers apart can be reliably compared with each other to determine transmission line parameters. This paper proposes the use of GPS time-stamped measurements to calculate the line impedance as well as the surge impedance loading (SIL) value of the transmission line