MBCI Pilot wire differential
protection relay
� High stability for through faults
� High speed operation for in-zone faults
� Simultaneous tripping of relays
at each line end
� Low current transformer requirements
� Low earth fault settings
� Designed for the unit protection of
overhead and underground feeders
� Suitable for pilots up to 1k© or 2.5k© with
pilot isolation transformers
� Four electrically separate contacts
� Can be used as definite time overcurrent
relay in the event of pilot failure |