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Dynamic Thermal Circuit Reliability DTCR

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Dynamic Thermal Circuit Reliability DTCR

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    1. Dynamic Thermal Circuit Reliability (DTCR) Using Models, PI, PI-ACE, Process Book, and the Module Database

    2. Topics to be Covered What is DTCR? Sources of DTCR information Choosing the appropriate technology solutions Discussion of Example Questions?

    3. Dynamic Thermal Circuit Reliability

    4. Physical Factors and Ratings Due to geographic lengths, physical factors differ per line segment.Due to geographic lengths, physical factors differ per line segment.

    5. Steady State Ampacity Calculation (Neher-McGrath) For example, will disregard Solar Heating For example, will disregard Solar Heating

    6. CIM has static information

    7. Modules have combined information

    8. Adjusting Ambient Temperature

    9. Workflow

    10. Population of Model Results in:

    11. ACE Design Question Design based upon modules? Context configuration issues arise. Synchronization issues arise. Design based upon class/instance relationships?

    12. General ACE Algorithm

    13. Issues Encountered Which Interface? Forgetfulness Logging

    14. Which Interface? Ampacity tags and aliases are calculated only. Need to be configured as “output” tags, but have no real interface. Decided to create a virtual interface DTCRACE.

    15. Forgetfulness Debug of ACE calc was OK… Checked security settings…OK… What else?

    16. Forgetfulness Calculated tags are “output” tags. Must turn off “shutdown” events for output tags.

    17. LogPIACEMessage Logging

    18. Logging Options Do Nothing Files Use a PI Tag

    19. Log Display

    20. Making ProcessBook Model Aware

    21. Same Display, different Substation

    22. Benefits of Having ACE and PB Model Driven As model changes, both are synchronized: Errors corrected, calculations automatically detect. As model is changed (e.g. adding a new line segment) Calculations adapt PB display adapts

    23. Future Benefits Application Framework may allow “auto-generation” of displays/one-lines.

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