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LREF 550
Distribution Feeder & Subtransmission Line Protection and Control

Distribution

REF 550
The most advanced solution for Distribution Feeder and Subtransmission Line protection in theindustry today.

HIGHLIGHTS

The REF 550 is the latest solution to fit your Distribution Feeder and Subtransmission Line protection, monitoring and automation needs.
Fastest Processing Platform inthe Industry…
Provides the fastest processing speed in the industry allowing for quicker response times and expandable functionality to meet future needs.

High Impedance Fault (HIF) DetectionThe ABB REF 550 is equipped with the latest High Impedance Fault (HIF) Detection technology including detection algorithms allowing the relay to identify downed conductors on soil, asphalt, sand, andother surfaces.

Point-N-Click Programming Logic…
Allows users to easily and quickly generate custom Boolean Logic equations to fit their specific protection applications without any of the typingerrors.

Enhanced Features Standard…
DNP Level 2+ Certified, IRIG-B Time Synchronization, Digital Fault Recorder (DFR), Load Profile and Programmable Curves

Benefits:

Saves lives and increases theoverall safety of your electrical system. Reduce the risk of bodily harm to employees during maintenance activities on electrical equipment Improved system reliability through better outagemanagement control Increased customer satisfaction due to quicker response times during an outage Flexible setting capabilities to detect and operate under various conditions.

ABB EZ-USE CommunicationSuite:
NEW Ethernet Modbus TCP/IP or UCA board with fiber optic or twisted pair

Modbus Plus

Improve your automation and communication capabilities with the widest range of advanced communicationprocessors in the industry. ABB now offers the latest solutions in communication technology delivering the highest efficiency, reliability and best performance for utility and industrial applications....