Software Patches

July 2, 2025

Features and Improvements

  • Transient Stability: Added the ability to read 3 new commands for a transient contingency element when reading an OTGD file. The commands are for Bus Isolation (Open the bus), Branch Set R and X (Resistance and Reactance) and Opening shunts.
    Examples:
    1) "bus 'BUS 138'" "isol" 0.56667
    2) "secdd 'BUS 500' '22222' '1' 1" "setto 0.0003 xpu" 0.50000
    3) "svd 'BUS NAME 345' '99'" "open" 0.56667
  • Bug Fixes

    • Auxiliary Files (SCRIPT and DATA Sections): Using the special string @CASENAME with script commands and plot features will include the full file path along with the name. Previously, this wasn't always true and depended on how a case was opened.
    • Sensitivity Calculations: On the PTDF dialog the button to Visualize PTDFs is showing when the dialog is opened with the Multiple Directions option selected. This button should not be visible when calculating multiple directions. This has been fixed.