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How to calculate the IDMT Curves for MiCOM and SEPAM relays

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Issue
Need to know how to calculate the IDMT curves for the MiCOM and SEPAM relays

Product Lines
MiCOM & SEPAM

Environment
Tripping IDMT Curves

Resolution
Attached are the two tools to calculate the IDMT Curves for the all the MiCOM and all the SEPAM relays.
Note: The tools are not interchangeable.  Unprotect sheets to work with formulas.  Charts are not included.

Conversion of TMS (Time Multiplier Setting) to Time delay (seconds):

TMS graph


Released for: Schneider Electric USA

Attachment(s)
MiCOM IDMT Curves Calculator.xlsx [11.44 KB]
SEPAM_Protection.xlsx [22.2 KB]
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Range:
Sepam series 80
Sepam series 40
Sepam series 20
Users group

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Range:
Sepam series 80
Sepam series 40
Sepam series 20
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