Reliability modeling of high-voltage power lines in a sharply continental climate

Abstract

<jats:p>One of the important elements of the high-voltage transmission line is 110 kV, the damage of which leads to under-supply of electricity, i.e. reducing the reliability of the lines. Damage to the reinforcement from the applied load occurs due to material fatigue. The main causes of damage to the reinforcement are ambient temperatures and wind forces on this element. Periodic kinks of the wire are observed at the places of installation of the connecting and supporting clamps, vibration dampers, and cyclic lateral forces arise. The simultaneous impact of the above efforts leads to fatigue damage to the suspension systems. From the cyclic load, the nodes of rigid structures are destroyed, which bear the maximum load.</jats:p>

Modeling the Reliability of High-Voltage Power Transmission Lines Taking into Account the Influence of the Parameters of a Sharply Continental Climate

“…The relationship between wire tension and ambient temperature is presented in Figure 3 (Khasanov et al, 2020). It is shown in the said figure that this relationship is mainly governed by the mechanical properties of the conductive materials.…”

“…It should be noted that at the maximum temperatures the sag of all the wires was significantly less than the critical value. A more detailed discussion is presented in Schlichting (1978), Barbur et al (1994), Reddy (2011), and Khasanov et al (2020).…”

“…The specific load on wire γ4 was calculated using the equation below (Rakhimov et al, 2017;Khasanov et al, 2020).…”

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