Question: A 500 KVA alternator is provided with a protective relay that detects the flow of power in opposite direction. Unfortunately, this relay does not

A 500 KVA alternator is provided with a protective relay that detects 

A 500 KVA alternator is provided with a protective relay that detects the flow of power in opposite direction. Unfortunately, this relay does not provide protection to the short circuit currents. What modification(s) is required to make it usable for detection of short circuit currents?

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