The problem of the service life of the relay is harmful to the relay contact. This experiment is based on the electromagnetic theory and the finite element simulation method. First of all

we established the sealed relay copper-based contact in the working state of the mathematical model

determined the arc of the electromagnetic fluid dynamics model

considering the various influencing factors of boundary conditions is given

and the electromagnetic thermodynamics simulation is based on ANSYS. Respectively

to study the thermodynamic environment under the static arc simulation analysis and dynamic arc simulation analysis

we use MATLAB numerical curve fitting analysis. The limiting temperature of the contact arc and the arc voltage characteristics at different temperatures were studied.