Updated Curves for Pro Users

The curves in a Pro database do not get updated automatically when an updated version is installed. Curves must be updated manually and are only updated thru importing a CRV file. 

Curves are used for relay testing with SMRT and MRCT test sets, LV power circuit breaker testing with SPI test sets, and recloser testing with OCR test sets. 

The attached curve files (.CRV) are from the most recent release of PowerDB, and are compatible with and can be imported into databases from versions going back to PowerDB version 10.5. The attached curve files are from version 11.2.9.0. 

  1. Download the files you need from the links provided in this article. For each file, follow the steps below. 
  2. Open your PowerDB master or development database. 
  3. Go to Database > Curve Library.
  4. Right click in the curve list and select "Import From File". 
  5. Browse to the location of the downloaded files and select one for import and press Open. 
  6. An import dialog will appear for each curve in the file. Press Import.
  7. If you prefer you can check the box for "Do this for remaining curves". 
  8. Repeat steps 5 to 7 for each file you wish to import. 
  9. If you imported into your master database then you are done. Close the Curve Library dialog box. Curves will download to each field user at their next synchronization. 
  10. If you imported into your development database continue with the steps below. 
  11. In the curve listing, select the filter dropdown for the curve type that you imported. 
  12. In the curve listing, select the first curve in the list. Scroll down and shift-select the last curve in the list. 
  13. At the bottom of the dialog, press Upload Curves. This will open the Database Utilities window which will upload all the selected curves to the master database. 
  14. Repeat steps 11 to 13 for each type of curve that was imported. 
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5 Comments

  • 0
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    Michael Bonura

    Does Power DB have breaker curves for the Square D Micrologic 3.0 and up to 6.0?

  • 0
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    Mark Meyer

    The breaker curves in PowerDB are being managed by Megger, and are only used with their SPI Breaker Test Set. Are you using that test set or are you just interested in viewing the curve in PowerDB Pro?

  • 0
    Avatar
    Michael Bonura

    I am actually looking for it in both. Square D has Molded breakers with those trip units installed on them and we cant use the SPI unit to show the curve.

    then I wanted it for power db PRO so i can try to add those curves to the breaker forms that we have created.  

  • 0
    Avatar
    Mark Meyer

    I have reached out to the Megger Product Manager for the SPI to see if there are plans to add those curves. 

    If the curves get added to Lite, they can also be added to your Pro database so you can do all of your testing in Pro. If you are currently unable to do that because you don't have the curves, let me know and I will help get those imported. 

  • 0
    Avatar
    Michael Bonura

    Mark Thank you for looking into that and I hope to talk to you soon i have to run out to a job now but i would like to talk to you about how to integrate the curves to the test forms that i had created.

    Thank you again for your help 

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