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  1. dbgv

    Monitored vs. Unmonitored Microprocessor Relays

    My first question is: "Is the EX2100 exciter a component of the protection system?" - The answer that I'm leaning too would be yes, if it can initiate a trip and the output contacts are tied to a lockout relay. My second question is: "If it is a component of the protection system, then does...
  2. dbgv

    Monitored vs. Unmonitored Microprocessor Relays

    Thank you both for your responses. I think the terms monitored and unmonitored came from NERC. I would have asked my NERC compliance people this question, but seeing as how they were the ones who asked me what it meant, I can see they will be no help. "Most microprocessor relays have a...
  3. dbgv

    Monitored vs. Unmonitored Microprocessor Relays

    What is the difference between an monitored and an unmonitored microprocessor relays? Has anyone with an EX2100 GE exciter had discussions with NERC about PRC-005 and whether they consider it to be "an elaborate form of a microprocessor relay" and as such should be tested like a...

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