ANSYS Based Analysis on Short-Circuit Force and Mechanical Stress of Cleats for High Voltage Large Cross-Sectional Cables
Liu Hangyu1,Liu Nian1,Pu Lijuan1,You Shiliang2,Wu Hao2,Li Juan1
1.College of Electrical Engineering & Information Technology Sichuan University Chengdu 610065 China; 2.Sichuan Electric Power Design & Consulting Co.LTD Chengdu 610016 China
Abstract：Based on transient short-circuit current calculation methods and finite element method (FEM),the calculation process of the short-circuit forces for high voltage large-sectional cables is analyzed.And the short-circuit forces calculation formula for cleats of high voltage large cross-sectional cable is gotten.Within the formula,the snake-like layout of the cable,the mediums cushion effect at the outer conductor,and the cable movement are taken into consideration.Moreover,the coefficients K1 and K2 are introduced to modify the expression of the cable cleat force caused by 50 Hz and 100 Hz frequencies respectively.The 3D finite element calculation model of the cable cleat system is established based on ANSYS.Then the effect of span spacing and phase spacing on the cable cleats stress field has been studied.At the same time,the 220 kV power cable transmission line between Shuang Qiaozi and Tao Xiang has also been calculated.As can be seen from the simulation results,the maximum value of the stress is in the middle of the bolt.So it is most easy to deform or be pulled apart.The span and phase spacing should satisfy the standard l≤2.7 m,0.28 m≤a≤0.30 m separately for 220 kV power cable transmission lines which are laid in parallel.
刘航宇，刘念，蒲丽娟，游世良，吴昊，李娟. 基于ANSYS的高压大截面电缆金具短路电动力和机械应力分析[J]. 电工技术学报, 2016, 31(5): 170-176.
Liu Hangyu,Liu Nian,Pu Lijuan,You Shiliang,Wu Hao,Li Juan. ANSYS Based Analysis on Short-Circuit Force and Mechanical Stress of Cleats for High Voltage Large Cross-Sectional Cables. Transactions of China Electrotechnical Society, 2016, 31(5): 170-176.
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2016, Vol. 31 
