REM545BM223AAAA ABB Motor Management Relay

Description

REM545BM223AAAA ABB Motor Management Relay

Product Dimensions：

Product Description (Detailed Explanation)

The REM545 is an advanced multiprocessor-based relay part of the ABB Substation Automation system. It functions as the “brain” for rotating machine protection, offering a “full-solution” approach that combines protection functions with PLC-like logic capabilities and extensive communication options.

The BM223AAAA suffix defines its hardware configuration:

• Protection & Control: Specifically tailored for large motors and medium-power generators.

• HMI: Includes a large graphical LCD display for local monitoring, event viewing, and manual control of switching devices.

• Architecture: Utilizes a modular I/O system, allowing for a high number of binary inputs and output relays, alongside optional RTD/mA inputs for temperature monitoring.

Product Parameters (Technical Specifications)

Product Advantages (Key Benefits)

• Integrated Multi-Functionality: Replaces several discrete relays and meters by combining protection, measurement, and PLC logic into a single unit.

• Advanced Thermal Tracking: Uses RTD inputs for real-time stator and bearing temperature monitoring, preventing motor burnout due to overload or cooling failure.

• High Flexibility: Features a programmable “MIMIC” display and user-configurable logic (CAP 505 tool), allowing the relay to be customized for complex interlocking and sequence logic.

• Deterministic Performance: Multiprocessor architecture ensures that protection functions are prioritized over communication and HMI tasks, guaranteeing fast trip times.

• Comprehensive Diagnostics: Includes a built-in disturbance recorder (up to 16 waveforms) and trip circuit supervision (TCS) for enhanced system reliability.

Precautions (Important Notes)

• Auxiliary Power Sensitivity: While the unit supports a wide range of $U_{aux}$, ensure the ripple in DC supply does not exceed 12% to prevent internal power module stress.

• HART/Current Loop Wiring: When using RTD or mA inputs, ensure shielded cables are used and grounded at one end only to prevent noise interference with sensitive measurements.

• Configuration Backup: Always use ABB’s Relay Setting Tool to back up the parameter files and logic configurations. Replacing a unit requires these specific files to restore site functionality.

• Safety Discharge: Before servicing, disconnect the power and wait for internal components to discharge. Never disconnect CT (Current Transformer) circuits while the primary is energized, as this can generate lethal voltages.

Product Applications (Typical Use Cases)

• Power Plants: Main protection for diesel, hydroelectric, and steam-driven generators in small-to-medium power facilities.

• Heavy Industry: Management of large asynchronous motors in steel mills, cement plants, and mining operations.

• Marine & Offshore: Certified for use in demanding maritime environments to protect main propulsion motors and shipboard generators.

• Water Treatment: Controlling and protecting high-capacity pumps and compressors in water distribution systems.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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