Compute the electric potential distribution between two parallel plates separated by a distance [] and positioned normal to the axis. The left plate is maintained at a constant potential [], whereas the right plate is grounded, . The region between the plates is characterized by a relative permittivity and a uniform electron charge density []. The equation to use in the model is given by:

Set up the electrostatic model variables :

Set up a region :

Specify electrostatic model parameters:

Specify the electric potential conditions:

Set up the equation:

Solve the PDE:

Visualize the solution:

Solve for the electric scalar potential in a three-bar electric switch with an electrical conductivity of . The equation to use in the model is given by:

Set up the electrostatic model variables :

Set up a region :

Specify an electrical conductivity :

Specify ground potential at the lower boundary:

Specify an electric potential of [] at the upper boundary:

Solve the PDE:

Compute the current density vector:

Visualize the current density vector:

Model a simplified bushing insulator of a transformer with an electric potential condition at the inner walls, which are in contact with the high-voltage conductor, and a ground potential boundary at one of the surface plates (). The equation to use in the model is given by:

Set up the electrostatic model variables :

Set up the geometry:

Specify a relative permittivity :

Specify a ground potential at the surface :

Specify an electric potential of [] at the inner walls:

Set up the equation:

Solve the PDE:

Visualize the solution: