Frequency Relay Block

Frequency Relay that operates when the system frequency exceed the predetermined value.

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Frequency Relay (ANSI/IEEE C37.2 device number 81) that operates when the system frequency is less than or exceed the predetermined value.
<b>System Frequency (Hz)</b>
Specify the system fundamental frequency, in hertz, of the input signal.

<b>Under Frequency Setting (f <<)</b>
Specify under frequency setting ranging from 1% to 20%.

<b>Over Frequency Setting (>>f )</b>
Specify over frequency setting ranging from 1% to 20%.

<b>Ride Through Time Delay Setting (t <<)</b>
Specify ride through time delay ranging from 0.1s to 30s for under/over frequency ride through.

Cite As

Rodney Tan (2026). Frequency Relay Block (https://au.mathworks.com/matlabcentral/fileexchange/64572-frequency-relay-block), MATLAB Central File Exchange. Retrieved .

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.0.0.0