ABB REF615 

1. Overview

The ABB REF615 is a high-performance feeder protection and control device designed for medium-voltage distribution networks (such as radial, ring, and mesh networks) and supports the integration of distributed power generation. This device combines protection, control, measurement, and monitoring functions, complying with the international standard IEC 61850, enabling communication and interoperability among substation automation equipment. The REF615 features a compact and modular design, ensuring easy installation, maintenance, and flexible expandability.

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2. Technical Parameters

• Input Voltage: 220V AC or 110-240V AC
• Output Voltage: 24V DC
• Operating Temperature Range: -20°C to 50°C
• Protection Rating: IP65
• Dimensions: Varies slightly by model (e.g., 19" × 19" × 2.5", W × D × H)
• Communication Protocols: Supports IEC 61850, Modbus RTU, and others
• Rated Current: 600A to 6300A
• Rated Voltage: 400V to 690V
• Weight: Approximately 1 kg to 1.5 kg

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3. Key Features

• Multifunctional Protection: Overcurrent, undercurrent, short-circuit, ground fault, overvoltage, undervoltage, and harmonic protection.
• High-Speed Circuit Breaker Control: Rapid fault detection and isolation.
• High-Precision Measurement: Accurate monitoring of current, voltage, power, and other parameters.
• User-Friendly Interface: Equipped with an LCD display for intuitive operation.
• Modular Design: Easy installation, maintenance, and quick replacement of components.
• Strong Compatibility: Supports multiple communication protocols, adaptable to various industrial environments.
• High Reliability: Manufactured with premium materials for long-term stable performance.

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4. Structure and Components

• Hardware Structure: Compact design with modular plug-in units, supporting withdrawable installation.
• Communication Interfaces: Includes RS-232, RS-485 serial ports, and Ethernet (RJ45).
• Sensors & Controllers: Built-in high-precision sensors and digital signal processors (DSP) for real-time monitoring and protection.
• Enclosure Material: ABS plastic, offering excellent impact resistance and electromagnetic interference protection.
• Panel Design: Front-panel plug-and-play design for easy maintenance and upgrades.

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5. Applications

• Power Systems: Substations, power plants, and distribution networks.
• Industrial Automation: Factory power distribution systems, motor protection, and transformer protection.
• Infrastructure Projects: Municipal engineering, ports, airports, and other critical facilities.
• Renewable Energy Systems: Enhances grid stability and reliability in wind farms and solar power plants.
• Smart Grids: Enables precise control in power transmission and distribution.