ABB REM543BM215AAAB
1. Overview
The REM543BM215AAAB serves as the core computing unit of the ABB REX543 series multifunctional digital protection relays. It adopts a high-performance 32-bit DSP + FPGA architecture, specifically designed for medium-voltage (MV) distribution networks (10 ~ 35 kV). Compliant with the IEC 60255 standard and holding a SIL 2 safety rating, this unit enables multiple power system protection functions and supports remote monitoring and control via various communication interfaces.
2. Main Parameters
Processor: High-performance 32-bit DSP + FPGA
Protection Functions: Multiple protection types including overcurrent, grounding, differential, distance, voltage, and frequency protection
Communication Interfaces: RS-485, Ethernet (supports IEC 61850)
Operating Voltage: 220 V AC (typical value)
Operating Temperature: –25 °C ~ +70 °C
Compliant Standards: IEC 60255, SIL 2
Applicable Voltage Level: 10 kV ~ 35 kV distribution systems
Physical Dimensions: Standard 19-inch rack (refer to the product manual for specific dimensions)
Protection Class: IP20 (for internal rack installation)
3. Product Features
High Reliability: Adopts a dual-redundant DSP + FPGA structure, with self-test and fault transfer capabilities.
Multifunctional Protection: A single configuration supports multiple protection algorithms, meeting the needs of various scenarios such as distribution networks, transformers, generators, and motors.
Flexible Communication: Supports IEC 61850-GSE, MMS, as well as traditional Modbus/Profibus protocols, facilitating integration with SCADA and EMS systems.
Modular Design: Can be freely combined with other modules in the REX543 series (input/output, communication, display), enabling easy system expansion.
Compliance with Safety Standards: Certified with SIL 2, meeting the safety integrity requirements of power systems.
4. Structure and Composition
Main Control Board: Integrates DSP + FPGA processors, memory, and clock modules.
Power Supply Module: Equipped with an internal power converter, providing 24 V DC for internal circuits.
Communication Interface Board: Features RS-485 and Ethernet ports (with optional IEC 61850 adapter).
I/O Interfaces: Includes terminal blocks for digital/analog inputs and digital outputs, supporting external sensors and actuators.
Rack Mounting Bracket: Complies with standard 19-inch rack dimensions, enabling easy installation in power distribution cabinets.
5. Application Fields
Fault protection and automatic reclosing for medium-voltage (10 ~ 35 kV) distribution networks
Transformer protection (overcurrent, overload, differential protection)
Generator sets (over/under-voltage, frequency protection)
Large motors (overload, grounding protection)
Industry and infrastructure (petrochemicals, rail transit, port power distribution)
6. Key Points for Installation and Maintenance
On-Site Inspection: Verify cabinet dimensions, ventilation conditions, and grounding reliability.
Mechanical Installation: Slide the module into the 19-inch rack and secure it with screws; ensure terminal blocks are aligned.
Power Wiring: Connect the 24 V DC power supply according to the wiring diagram, and check polarity and fuses.
Signal Wiring: Connect sensors such as Current Transformers (CT) and Voltage Transformers (VT) based on protection requirements.
Communication Cabling: Connect RS-485 or Ethernet ports, and configure IP addresses and IEC 61850 parameters.
Software Configuration: Use ABB’s configuration tools (e.g., Power System Analyzer) to download protection logic and set parameters.
Function Testing: Conduct on-site simulation tests (e.g., overcurrent, grounding) to verify relay operation and signal transmission.
Regular Maintenance: Every 6 ~ 12 months, check the tightness of wiring, clean heat sinks, update firmware, and record operation logs.
Xingruijia focuses on providing ABB industrial automation full range product services and your intelligent control solution partner
If you would like to learn more about our products and services, please feel free to contact us at any time!
Sales Manager : Jinny
Email : sales1@xrjdcs.com
Whatsapp/Mobile:+86 15359273791
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