Stress performance analysis of short conductors with unequal height difference in UHV network
China is vigorously developing related technologies of ultra-high voltage power grids at the present stage.However,due to the neglect of the analysis of conductors'mechanical performance,insulation accidents are easily caused in engineering.According to the different relative positions of the suspension points at both ends of the conductor,it can be divided into equal height difference and unequal height difference connection.Therefore,this paper presents an empirical formula for calculating the mechanical properties of short conductor terminals with unequal height difference in different degree of freedom.The stress state of short conductor under the condition of unequal height difference is analyzed.By changing the distance,height difference and angle of wire clamp between suspension points,the force characteristics of terminals in different directions are summarized,and an empirical formula for design reference is derived.The results show that the empirical formula has good engineering applicability.The force at the terminal of the conductor is not only related to the external load,but also related to the distance,height difference,type of the conductor and the angle of the wire clamp used at the terminal.
stiffness effectconductor modelunequal height differenceshort conductorpower system
国家科技期刊平台
NSTL
万方数据
维普
