Icing sensor on the overhead powerlines wires

Abstract

In systems intended for icing diagnosis on overhead power lines in exploitation conditions the imperfect icing sensors are used on their wires. Their parameters are different from parameters of controlled wires. The construction of icing sensor was developed based on overhead power lines with uninsulated wires of A, AC types. The threshold values of the ohmic resistance of the sensor were determined for two types of ice-hoarfrost sediments: rime and ice. It is proved that sensor length may be reduced and precision of measurement will be the same. It can be achieved by increasing of the subsidiary electrodes number at equality of central angles between them. It is proposed to use the sensor in systems of technical diagnosis at the early stage of the ice appearing.