Optimal Power Flow option not installed

asked 2018-11-22 17:53:54 -0600

SAE_2016
13 ●6 ●7 ●10

Hi all, I try to test the savnw example case but when i read the savnw.rop file i get the message "Optimal Power Flow option not installed".

psspy.case(r"""C:\Program Files\PTI\PSSE32\EXAMPLE\savnw.sav""")
psspy.ropf(r"""C:\Program Files\PTI\PSSE32\EXAMPLE\savnw.rop""")

Should i use another option to read the files? Would be a problem with my PSS university licence?
Thanks a lot in advance