Software Patches

June 25, 2010

Features and Improvements

  • File Formats: When using the Present Topological Differences from Base Case tool, added the ability to save the removed elements in the EPC file format using status values of -4.
  • Oneline Diagrams: When using a contour with a dynamic interpretation, if all the values being contoured had the same value the contour image could appear random. This was remedied by enforcing a minimum tolerance on the separation between minimum, nominal, and maximum values of the color map.
  • Transient Stability: Modified storage to RAM to automatically include any information needed for a subplot's horizontal axis data.
  • User Interface Dialogs: Added ability to assign Case Comments to a case which designate a person's name and a time along with the comment. These are only stored in the PWB file format.
  • Bug Fixes

    • Fault Analysis: Fixed error with the handling of out-of-service switched shunt when using the IEC-909 fault calculation
    • Oneline Diagrams: On the contour dialog, the choice of interpretation was not being saved properly to a PWD file. Thus when the diagram was reopened the choice was not retained. This has been fixed.
    • Power Flow Solution: Fixed error in handling of phase shifters in the DC approximation solution.
    • QV Curve Tool: Removed irrelevant message dialog when saving QV results to an AUX file. This occurred for QV curves involving a contingency which could not be solved.
    • Time Step Simulation: Fixed problem when pasting injection group data from Excel into time step simulation input.
    • Transient Stability: Modified storage of Transient Contingencies to an AUX file to properly use number identifiers when appropriate.
    • Transient Stability: Fixed error in initializing the SMIB calculation to properly handle a generator that was de-energized.
    • Transient Stability: When storing data to Hard-Drive while using the Integrated Topology Processing, information is now stored using the full-topology bus number identifiers so that they can be properly read back in.
    • Transient Stability: Fixed error in handling of Generic Limit Monitors looking at over frequency for synchronous generators. The action to take was not being properly interpreted.
    • User Interface Dialogs: Fixed multi-section line dialog bug. The Find From Bus button did not work when inserting a new MS Line.