Analysis of power losses of the 150 kV transmission using Poynting vector

If a conductor given voltage, then there will be electric field and magnetic field along the conductor, as a result of sinusoidal waves which change with time. Besides, it will cause the power loss along the conductor, especially for long lines and has a high voltage. The main purpose of this study was to determine power loss that occurs in the 150 kV overhead. One of effective method to calculate the power loss in the transmission line is the Poynting vector theorem is analyzed based on the amount of the electric field and magnetic field intensity generated. Based on the results of the analysis conducted in this study found that the magnitude of power loss at lines 150 kV with a routes SUTT Bakarul-Pinrang-Tuppu, Pinrang - Pare-pare, Pare-pare - barru-Pangkep, and Pangkep-Bosowa-Tello amounted to 5.4505 MW with a total transmission line length of 230.138 km.