ABB REB650 1MRK006520-AD

1. Overview

ABB REB650 1MRK006520-AD is a busbar protection device of the ABB Relion 650 series, specifically designed for power generation, transmission, and distribution network applications. It provides complete busbar protection functions and default parameter configurations. As a professional model for busbar protection in the ABB Relion 650 series, the device features high reliability and flexible configuration capabilities.

2. Technical Parameters

Parameter Item	Specification
Model	1MRK006520-AD
Function Type	Busbar Protection
Rated Current Input	Configurable 1A or 5A
DC Power Supply	DC 110V or DC 220V
Communication Protocol	IEC 61850, GOOSE
Installation Method	Rack-mounted, Wall-mounted
Rack-mounted Dimensions	25.5mm (W) × 482.6mm (D) × 265.9mm (H) (6U)
Wall-mounted Dimensions	270mm (H) × 252.5mm (W) × 296mm (D)

3. Product Features

• Complete Protection Functions: Provides single-phase high-impedance differential protection, four-stage zero-sequence overcurrent protection, thermal overload protection, circuit breaker failure protection, etc.
• High Reliability Design: Adopts redundant design and self-diagnostic function to ensure reliable operation of the equipment.
• Modular Design: Facilitates installation and maintenance.
• Flexible Configuration: Various functions and parameter settings can be realized through configuration software.
• Compliant with IEC 61850 Standard: Enables interoperability with other equipment.
• Extended Human-Machine Interface (HMI): 15 three-color indicator dynamic LED lights per page, up to 3 pages.
• Customizable Labels: Text-based programmable LED labels.
• Local Language Support: Supports user-defined names and allows setting signals and functions in local languages.
• Minimized Parameter Setting: Based on ABB's general reference value concept.

4. Structure and Composition

Component	Description
Front Panel	Including display screen, buttons, indicator lights, etc., for human-machine interaction.
Internal Circuit Board	Including processor, memory, communication interface, etc.
Connection Terminals	Interface connections for power supply, signals, communication, etc.
Communication Interface	Supports multiple communication protocols.
Configuration Software	PCM600 (Version 2.9 or higher required)

5. Application Fields

• Power Plants: Generator busbar protection.
• Transmission Networks: High-voltage transmission busbar protection.
• Distribution Networks: Medium and low-voltage distribution busbar protection.
• Substations: Substation busbar control and protection.
• Industrial Enterprises: Protection of enterprise power systems.
• New Construction and Renovation Projects: Suitable for new construction and renovation installations.

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