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I am trying to model relay trip action to trip loads/feeders for over-frequency conditions in PSSE dynamic simulations. However, I can't seem to find any suitable model. Most relays are based on underfrequency

LDSHBL, LDSHOW, LDSHZN, LDSHAR, LDSHAL

The only over-frequency relay I found are the:

FRQDCAT, and FRQTPAT,

However, they only disconnect generators, or the whole bus. Is their any over-frequency relay that would trip a load or a percentage of a load?