Practical Implementation of Monitoring and Ice Melting on 110 – 120 kV Overhead Transmission Lines Based on the Dip Angle of the Wire

Resumo

The problem studied here is important because of the need for an efficient technology for monitoring the state of the wire in a span based on combined software and hardware for analyzing the technical state of the wires in 110 kV overhead electrical transmission lines in order to obtain a comprehensive estimate of the effect of external climatic factors owing to wind and ice loading, as well as the amount of thermal elongation of the wires owing to the effect of current flow. An analysis of the instantaneous state of the wires and their limiting mechanical strength makes it possible to evaluate the effectiveness of measures for preventing accidents and lessening the undersupply of electrical power to final consumers. Visualizing the instantaneous parameters of the wire in a span of an overhead electrical transmission line will make it possible to reduce the time needed to undertake steps to prevent emergencies. The algorithm for monitoring the state of wires in overhead lines is based on information about the existing values of the longitudinal and transverse angles obtained with sensors that are installed directly on the wire in an electrical transmission line.