High-voltage disconnector

as a key equipment of substation in the power grid structure

is essential to the quality of operation of power grid. Due to the geographical location of Guangdong Province in China

many strong typhoons have caused great damage to power facilities in recent years

in which

the loss of disconnector is the most serious

which seriously affects reliability of power grid. When studying the mechanical properties of the disconnector under strong wind

the surface of the disconnector is actually subjected to continuous wind pressure. It is therefore necessary to study the wind load and mechanical properties of the disconnector under strong wind by fluid-solid coupling method. Firstly

the fluid dynamics model is used to simulate the wind flow field around the disconnector so to obtain the accurate wind pressure distribution of the disconnector surface. Then

the wind pressure load

gravity load and fixed support are applied to the disconnector for mechanical analysis. The results show that the the position with large deformation of the disconnector is mainly concentrated in the conductive arm;The stress at the joints and bottom of the parts of the disconnector is larger

of which the reinforcement shall be considered. The above-mentioned simulation analysis can provide the basis for the optimal design of the disconnector.