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 Saudi Arabia




Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales enquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Centre
Find support resources for all your needs, in one place.