REX 521

Overview

• Model: REX 521

• Application: Feeder protection, control, and supervision

Key Applications

• Network Protection: Incoming/outgoing feeders, substation, and motor feeders

• Additional Use: Backup protection for transformers and high-voltage line relays

• Voltage Systems: Suitable for radial isolated neutral, resonant earthed, solidly earthed, and resistively earthed systems

Features

• Inputs: Energizing inputs for current and voltage transformers; optional version with current and voltage sensors

• Configuration: Pre-made, standard configurations for various networks

• Protection Type: Multi-functional protection for medium voltage networks

Enhanced Capabilities

• Measuring & Supervision: Extended functions for efficient protection, control, and monitoring

• HMI Connectivity: Designed for seamless connectivity in different network types

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