ABB REM543CG212AAAA: Motor Protection Relay
The ABB REM543CG212AAAA is a versatile motor protection relay designed for industrial automation, motor control, and electrical network protection. It integrates advanced motor protection functions, communication protocols, and diagnostic tools to ensure reliable operation of motors in demanding environments.
Technical Parameters of ABB REM543CG212AAAA
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Category
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Technical Specifications
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Rated Voltage
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24–250 V DC / 100–240 V AC (±20%)
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Current Inputs
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1 A or 5 A (configurable), ±2% accuracy
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Frequency Range
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45–65 Hz
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Protection Functions
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Overload, phase loss, short-circuit, earth fault, thermal overload, under-voltage, over-voltage, motor stall
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Communication Protocols
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IEC 61850, Modbus RTU, Modbus TCP/IP, PROFIBUS DP, DNP3
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I/O Configuration
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8 digital inputs, 6 relay outputs, 4 analog inputs
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Environmental Ratings
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Operating temperature: -25°C to +70°C, Storage temperature: -40°C to +85°C, IP20 protection
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Certifications
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IEC 60255, UL 508, CE, RoHS
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Functional Features of ABB REM543CG212AAAA
1. Motor Protection Functions
The ABB REM543CG212AAAA motor protection relay provides comprehensive motor protection against:
- Thermal Overload: Mimics motor thermal capacity using IEC 60255-8 standards.
- Phase Imbalance: Detects phase loss or asymmetry (threshold configurable).
- Short-Circuit Protection: Instantaneous trip for phase/earth faults.
- Stall Protection: Detects motor stalling during start-up or operation.
- Ground Fault Protection: Sensitive earth leakage detection (0.1–10 A range).
2. Advanced Monitoring & Diagnostics
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Feature
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Description
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Real-Time Measurements
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Voltage, current, power (kW/kVA), energy (kWh), power factor, frequency, THD.
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Event Logging
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Stores 1,000+ time-stamped events (trips, alarms, parameter changes).
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Oscillography
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Captures waveform data during faults (up to 50 cycles).
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Self-Diagnostics
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Monitors relay health, CT/PT failures, and communication errors.
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3. Communication & Integration
The ABB REM543CG212AAAA supports seamless integration with SCADA systems and industrial networks:
- IEC 61850 Ed.2: For substation automation and GOOSE messaging.
- Modbus RTU/TCP: Compatible with PLCs and HMIs.
- PROFIBUS DP: For integration into Siemens automation systems.
4. User Interface & Configuration
- LCD Display: 4-line backlit LCD for real-time data and settings.
- Local Control: Start/stop motor commands via HMI.
- Software Tools: Configured via ABB PCM600 or Relay Configuration Tool.
Applications of ABB REM543CG212AAAA
The ABB REM543 motor protection relay is ideal for:
- Industrial Motors: Pumps, compressors, fans, and conveyor systems.
- HVAC Systems: Protection of large ventilation and cooling motors.
- Renewable Energy: Wind turbine pitch control and solar farm inverters.
- Oil & Gas: Hazardous area motor control centers (MCCs).
Key Advantages of ABB REM543CG212AAAA
- High Accuracy: ±1% measurement accuracy for voltage and current.
- Modular Design: Expandable I/O modules for custom configurations.
- Cybersecurity: Role-based access control and password protection.
- Energy Efficiency: Monitors motor efficiency and reduces downtime.
Keyword Summary
ABB REM543, motor protection relay, thermal overload, IEC 61850, Modbus TCP/IP, motor diagnostics, short-circuit protection, industrial automation, ABB PCM600, PROFIBUS DP.
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