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Need for integrating Dynamic line rating to the overhead transmission lines Shachidevi T.K., Mohapatra Smruti Ranjan Sterlite Power Transmission Limited Online published on 6 February, 2020. Abstract Dynamic line rating (DLR) is an overhead transmission line real time monitoring system for monitoring and rating of existing and new overhead transmission lines. DLR sensors are becoming popular with the utilities for optimal use of the line capacity. DLR provides real-time monitoring of conductor temperature, sag, load, and weather conditions. Additionally, provides predictive load model to enhance the efficiency and optimise the line ampacity. The software provided can be used for maximizing the line loading. The actual current, thermal rating of the line and sag are easily measured using DLR. The sag measurement helps in reviewing ground clearance of the overhead lines in cities, crossings over roads, railroads, other overhead lines, etc. Additionally, measured data like angle (sag) is implemented to the software application to detect ice overloads or fallen trees. Sag cannot be corelated in two similar overhead lines due to various external factors. Higher sag is observed in the older lines. Top | |
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