In many countries, the pace of investment in OHLs has lagged behind the rate of load growth and generated additional capacities, due to public, regulatory, environmental and financial obstacles to the construction of new transmission facilities. Consequently, many OHLs reached critical values of ampacity and sag. Many renewable energy sources, especially hydro plants, solar or wind farms also require dynamic operation of the power grid.
OTLM – Overhead Transmission Line Management system is adding new dimensions to the operation of OHLs. It enables more efficient performance and at the same time enhances the safety of system operation. A maximum utilization of the OHL ampacity is only possible if the operators have accurate data about the conductor temperature, sag and ambient conditions. Here the OTLM systems is the solution.