B bejoyengineer Member Mar 9, 2009 #1 Why is the earth fault relay given the name as Restricted. what difference does it have with other earth fault relays.
Why is the earth fault relay given the name as Restricted. what difference does it have with other earth fault relays.
J jghrist Senior Member Mar 9, 2009 #2 REF is like differential protection. Coverage is "restricted" to faults within the differential zone.
REF is like differential protection. Coverage is "restricted" to faults within the differential zone.
