A STUDY ON DIFFERENT CONDUCTORS FOR OPTIMISATION OF POWER FLOW/LOADABILITY IN LONG AND MEDIUM TRANSMISSION LINE
International Research Journal of Engineering and Technology (IRJET)
Transmission lines is the important factor of the power system. A transmission and distribution line has good contribution in the generating unit and consumers to obtain the continuity of electric supply. In the early days, simple copper wire or copper based bare conductors were used but nowadays, more cost effective solutions, such as aluminum and variations of aluminum alloy conductors are used extensively in the power system. The conductor of an overhead power line is considered as the most
... idered as the most important component of the overhead line since its function is to transfer electric power, and its contribution towards the total cost of the line is significant. The conductor costs (material and installation costs) associated with the capital investment of a new overhead power line can contribute up to 40% of the total capital costs of the line. Furthermore, power losses in the lines account for the bulk of the transmission system losses, which in South Africa is about 1200 MW at peak load. These are critical economic factors which need careful analysis when selecting a conductor for a new overhead line, which will be in operation for an excess of 25 years. Choosing a larger conductor configuration will have higher up front capital costs, but this may lead to lower overall life cycle cost. Consequently, much attention has to be given to the careful selection of a conductor configuration to meet the present and predicted future load requirements.