ABB REF543 Feeder Protection Terminal

Description

The ABB REF543 is a multifunctional feeder protection and control terminal designed for medium-voltage networks. It provides comprehensive protection, measurement, control, and monitoring functions for various switchgear configurations including single and double busbar systems.

Specifications

• Model Number: REF543

• Application: Feeder protection in medium-voltage substations

• Supported Protocols: DNP3.0, Modbus, IEC 61850, Profibus-DPV1, SPA bus, LON

• Voltage Range: Compatible with standard MV feeder voltages

• Auxiliary Voltage: Configurable based on system requirements

• Digital Inputs/Outputs: Multiple configurable I/O channels

• Analog Inputs: RTD/analog module support for temperature and signal monitoring

• Display Interface: Integrated HMI with LED indicators and alarm signaling

• Communication Ports: Rear and front panel RS-232, optical, and fieldbus connectors

• Mounting: Panel or rack-mounted

• Environmental Rating: Designed for harsh industrial conditions

• Self-Supervision: Built-in diagnostics and fault indication

• Configuration: Software-based function mapping and parameterization

Features

• Comprehensive Protection: Includes overcurrent, earth fault, and breaker failure protection

• Advanced Control Functions: Supports interlocking, remote control, and automation logic

• Flexible Communication: Integrates with multiple protocols for SCADA and substation automation

• Measurement Capabilities: Real-time voltage, current, power, and energy monitoring

• Condition Monitoring: Tracks equipment health and performance trends

• Modular Design: Expandable with RTD/analog modules and software configurations

• User-Friendly Interface: Local parameterization and event display via front panel

• Cybersecurity Ready: Supports secure object control and time synchronization

• Legacy Compatibility: Part of ABB’s REF54x series for consistent system integration