Temperature Field Study Of Basin-insulators During Solidification Molding

Due to its small footprint,compact structure,reliability,safety and flexibility,GIS has been widely used in ultra-high voltage and ultra-high voltage substations in recent years.The basin insulators in GIS play an important role in supporting conductors,isolated air chambers and electrical insulation,and the reliable operation of basin insulators is a necessary condition for the normal operation of GIS.The basin insulator is made of epoxy resin,and the curing stage is the key to determine the performance of the composite product.The curing process temperature has a significant effect on the curing quality of the composite.In this paper,the temperature field of the basin insulator during the curing process was studied for this problem.In this paper,a 3D 1100 kV basin insulator model and a curing oven model were built using SolidWorks modeling software.The finite element model was built into COMSOL Multiphysics software to analyze the flow field and provide initial conditions for temperature field analysis.The temperature field distribution of the insulator during the curing process was analyzed by temperature field simulation of the UHB basin insulator during the whole process of solidification molding.For the case where the temperature difference between the concave side and the convex side of the section of the basin insulator is too large during the curing process,the existing oven structure is improved,and the temperature difference between the concave side and the convex side of the front and rear basin insulator sections is improved.The simulation results show that The optimized oven structure has a better temperature field distribution of the basin insulator during the curing process.At the same time,the influence of the position of the improved structure and the wind speed on the temperature field of the insulator was simulated.Finally,experiments were carried out on the curing process of the basin insulator in the existing oven structure,and the accuracy of the simulation model was verified.