Akademik Veri Yönetim Sistemi
Innovative Studies In Electrical, Electronic and Communication Engineering, Asist. Prof. Dr. Umut ÖZKAYA, Editör, All Sciences Academy, Konya, ss.51-63, 2024
In this study, the absolute differences between long, medium and short
transmission line models in terms of sending end voltage, current, power
factor, apparent power, active power, reactive power, voltage regulation,
voltage drop, active power loss, line efficiency, charging current and voltage
rise as the total length of the transmission line is varied are investigated.
According to the results obtained, it was seen that the long transmission line
models performed excellent calculations for medium and long transmission
lines, while they were able to accurately calculate many parameters of short
transmission lines. It has been observed that the parameters of the short
transmission line that cannot be calculated correctly are due to the neglected
admittance. As a result, it has been shown that the values of transmission lines
of all lengths can be calculated accurately with the long transmission line
model. It has also been observed that approximate and exact models give very
close values to each other in transmission lines up to 500 km. It has been
proven that using the approximate model for all lines between 80-500 km will
not cause any problems, as the approximate model, which is easier to apply
than the exact model, gives the same results as the nominal pi model on lines
up to 250 km.