高压大截面电缆固定金具损耗分析研究

摘要

随着城市建设的逐步深入，城市规模的扩大，相应的城市用电负荷也在增加。原有的城市架空输电线路以及电缆已经不能满足城市用电量的需求，由于城市地面的拥挤加之电力电缆可以通过地下以及隧道敷设等优点，高压大截面输电电缆的敷设距离越来越长，大截面电缆固定金具应用越来越广。本文着重通过对高压大截面电缆固定金具损耗进行研究，在载流量一定的情况下，建立固定金具的数学计算模型，并通过SOLID-WORKS和COMSOL软件进行仿真，最终得到固定金具的材质对损耗的影响。%With the acceleration development of cities construction and its expansion,thecities’ power load is increas-ing.The original cities’ overhead transmission line and cable has can’ t meet the needs of city electricity consump-tion.Because the cable can through the tunnels and underground installation, high voltage large cross-section transmis-sion cable install more and more long, thus the largecross-sectionsupport clamp is applied more and more widely.In this paper, we study the loss of high voltage large cross-section transmission cable support clamp, in the case of cur-rent carrying capacity remains the same, the support clamp’ s math model is setup.Through the simulation of SOLID-WORKS and COMSOLsoftwares,finally, we get the impact of the material of support clamp oneddy-current loss.