This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
The restricted earth fault protection (ANSI 64REF) can be applied if the downstream power system neutral is earthed at the transformer (document attached).
This is a differential protection function that detects the difference between residual currents measured at the neutral earthing point and at the three-phase output of the transformer.
Please find attached document describing how to implement the estricted earth fault protection with Masterpact Micrologic 6.0
This is a differential protection function that detects the difference between residual currents measured at the neutral earthing point and at the three-phase output of the transformer.
Please find attached document describing how to implement the estricted earth fault protection with Masterpact Micrologic 6.0
Released for: Schneider Electric Egypt and North East Africa
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