The ABB REF542PLUS 1VCF752000 is a compact digital feeder terminal used in medium-voltage (MV) applications for electrical power distribution systems.

• Feeder Protection: The primary function of the REF542PLUS is to protect electrical feeders (supply cables) from various faults like overcurrent, short circuits, and ground faults. It continuously monitors the electrical parameters of the feeder and trips circuit breakers when a fault is detected, isolating the faulty section to prevent equipment damage and safety hazards.
• Measurement and Monitoring: The REF542PLUS can measure various electrical parameters like voltage, current, power factor, and energy consumption. This data can be used for:
  • System monitoring and analysis
  • Identifying potential issues before they occur
  • Optimizing energy usage

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