PSCAD Free
https://www.youtube.com/watch?v=z7hs66I13_E
https://hvdc.ca/pscad/freeversion


Examples Overview (See lightning and Protection)
https://www.youtube.com/watch?v=WdIZZiX9xEI


Creating a Project
https://www.youtube.com/watch?v=tUKCos3wdpY