Numerical Simulation of Mechanical Stress & Thermal Stress Test of 550kV High Coupled Split Reactor

Abstract

Based on the modeling of the structural parameters of the 550kV high coupled split reactor, the electromagnetic coupling method are used to establish the 3D mechanical stress and thermal stress calculation model of the high coupled split reactor, and the mechanical stress and thermal stress distribution characteristics of the overall and encapsulation of the high coupled split reactors are studied. The simulation results of this paper show that: the direction of the electric power in the single arm current limiting is mainly distributed axially symmetrically outward, and symmetrically about the middle of the vertical height, the radial force from the inside to outer encapsulation is gradually reduced, and the outermost side has a weaker contrat tendency. In general, each encapsulation has an outward expansion tendency. At the same time, the temperature distribution of the high coupled split reactor shows that the upper region is higher than the lower region, and the intermediate encapsulation is higher than the encapsulation trend of the two sides. The highest hot spot temperature is 10-cated in the upper region of the middle of the high coupled split reactor. The research results provide a theoretical basis for the design and optimization of the 550kV high coupled split reactor test scheme.