相间间隔棒对覆冰导线脱冰跳跃的抑制研究

Study on inhibition of phase-to-phase space stick against jump of icing conductor caused by de-ice

针对覆冰导线脱冰跳跃引起的导线断股、疲劳断线、导线间闪络、短路等电气事故问题,阐述了塔线-相间间隔棒体系的有限元理论,建立了三相导线呈竖直排列的输电线路输电铁塔、线-相间间隔棒体系的有限元模型,分析了相间间隔棒对导线跳跃高度和导线挂点不平衡张力的抑制效果。研究结果表明,加装间隔棒可以有效抑制单相脱冰和两相同时脱冰,对导线的跳跃位移和导线挂点不平衡张力有很好的抑制作用。

Abstract：Aiming at the electric accidents caused by the jump of icing conductor caused by de - ice such as con- ductor breakdown, fatigue disconnection, flashover between conductors and short circuit, this paper expounds the infinite element theory of tower - line - phase to phase space stick system, establishes the infinite element model of transmission tower, line and phase - to - phase space stick system of which the three, phase conductor is uprightly arrayed, and analyzes the stick inhibition effect on the jump height and the unbalanced tension at the conductor hanging point. The study result shows that the space stick effectively inhibits single -phase and double -phase de - ice, the jump location of conductor and the unbalanced tension at the conductor hanging point.