Reset SEL relays to Factory Defaults
The DC Power supply to the relay quit in the middle of a setting download and when the power was restored, the relay EEprom failed. I was able to communicate with the relay (at a different BAUD rate) and the SEL Tech support had me go to level 2 and type “R_S” which restored the relay to its factory defaults.
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Chris is an Electrical Engineering Technologist, a Journeyman Power System Electrician, and a Professional Engineer. He is also the Author of The Relay Testing Handbook series and founder of Valence Electrical Training Services. You can find out more about Chris here.
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