Working Models for OneLiner, Power Flow, DistriView, Relay Database and Line Constants Program are Windows programs with virtually the same capabilities as the production version. The only restrictions are that:

  • You can open only the example files provided, and
  • You cannot save the changes on exit

The User's Manual and a written tutorial are included. Please submit a eMail request to This email address is being protected from spambots. You need JavaScript enabled to view it. if you want to receive one or more Working Models. Be sure to include:

  • Your name.
  • Your company name and address.
  • Your telephone number.
  • The ASPEN programs that are of primary interest to you.