Application software for analysis and design of grounding grids of substations based on the requirements of the IEEE 80 "IEEE Guide for Safety in AC Substation Grounding".  Aspix calculates the grid resistance, and touch and step voltages for grids of any shape.  The program can use uniform or two layer soil models.

Try Aspix

  • Download and install Aspix.  The installer will check for .NET Framework 4.5 before installing Aspix.  If.NET Framework 4.5 is not installed, follow the Installation Instructions for install it.

  • Download and install the complements needed to generate reports. These complements can be downloaded from the following links:

        - SQLSysClrTypes
        - Report Viewer
  • The program includes a 10 days free license

YouTube Video

  • Simulation of grounding grids of any shape including horizontal conductors and vertical electrodes (rods)
  • Uniform or two layer soil model
  • Calculation of grounding grid resistance
  • Ground fault current distribution
  • Calculation of maximum permissible touch and step voltage according to IEEE 80
  • Calculation of touch and step voltages within a user-defined area
  • 2D and 3D views of the grounding grids
  • 2D and 3D plots of touch and step voltages
  • Touch and step voltage in profiles
  • Word, Excel or PDF report
User Interface
Ground fault current distribution


Grounding grid 3D view
Touch and step voltage 3D Charts
 Touch and step voltage 2D Charts
                                            Touch and step voltage in profiles