IDMT Overcurrent Relay Calculator

IDMT Overcurrent Relay Calculator computes overcurrent relay operating time during fault based on fault current and relay setting

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% Written by Rodney Tan (PhD)
% Version 1.00 (Jun 2020)
%
% IDMT Overcurrent Relay Calculator computes overcurrent relay
% (ANSI/IEEE C37.2 device number 51P) operating time during fault based on
% fault current and the relay IDMT trip curve, CT, Plug Setting / Lowset I>
% and Time Multiplier Setting (TMS).
% It supports both IEC 60255-3 and IEEE Standards C37.112-1996 IDMT trip curve.

Cite As

Rodney Tan (2026). IDMT Overcurrent Relay Calculator (https://www.mathworks.com/matlabcentral/fileexchange/76475-idmt-overcurrent-relay-calculator), MATLAB Central File Exchange. Retrieved .

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.0.0