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Recent content by NikolaSuc

  1. NikolaSuc

    Transformer Neutral CT sizing for REF protection

    Hello everyone, has anyone encountered the following issue: when sizing CT in the neutral of grounded Y side of transformer, for Restricted Earth Fault protection of transformer using Siemens Siprotec 4 7UT6 relay, does the neutral CT have to be sized so that ALF' of the CT meets some...

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