ABB LDGRB-01 3BSE013177R1 – Technical Overview
The ABB LDGRB-01 3BSE013177R1 is a high-performance motor protection relay designed for industrial automation and electrical systems. It provides comprehensive protection, monitoring, and control for motors in harsh environments, ensuring operational safety and efficiency.
Technical Parameters
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Category
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Specification
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Power Supply
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24–240 V AC/DC (wide range input)
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Rated Current (Iₙ)
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Adjustable range: 0.1–100 A (depends on CT configuration)
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Input Channels
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3-phase current inputs, 1 residual current input (earth fault detection)
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Communication Protocols
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Modbus RTU (RS-485), Profibus DP (optional), Ethernet/IP (optional)
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Relay Outputs
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4 programmable relay outputs (NO/NC, 250 V AC, 5 A)
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Digital Inputs
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4 configurable digital inputs (24–240 V AC/DC)
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Protection Functions
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Overload, short-circuit, phase loss, imbalance, locked rotor, earth fault, etc.
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Accuracy
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±1% of full scale (current measurement)
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Display & Interface
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Backlit LCD with navigation buttons for configuration and diagnostics
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Operating Temperature
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-25°C to +55°C
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Housing & Protection
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IP20 (panel-mounted), flame-retardant polycarbonate enclosure
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Standards & Certifications
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IEC 60947, UL 508, CE, RoHS
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Functional Features
- Advanced Motor Protection
- Detects and isolates faults such as overloads, phase loss, current imbalance, and ground faults.
- Configurable trip curves (e.g., IEC or NEMA standards) for compatibility with diverse motor types.
- Real-Time Monitoring
- Measures motor parameters: current, voltage, power, energy, and thermal capacity.
- Harmonic analysis for power quality assessment.
- Programmable Logic & Automation
- Customizable logic functions via integrated PLC-like capabilities (e.g., timers, counters, interlocks).
- Supports auto-restart or sequential start-up of motors.
- Diagnostics & Event Logging
- Stores up to 100 event records with timestamps (trips, alarms, configuration changes).
- Thermal memory tracking to prevent premature restarts after overloads.
- Communication & Integration
- Seamless integration with SCADA, DCS, or PLC systems via Modbus, Profibus, or Ethernet.
- Remote configuration and monitoring using ABB’s DriveSoft or third-party tools.
- User-Friendly Interface
- Intuitive menu-driven LCD for parameter adjustments and real-time data visualization.
- Pre-configured settings for rapid deployment.
- Energy Efficiency
- Motor load optimization and start/stop control to reduce energy consumption.
Typical Applications
- Industrial motor control centers (MCCs).
- Pumps, fans, compressors, and conveyor systems.
- Water/wastewater treatment plants.
- Mining, oil & gas, and heavy machinery.
Compliance & Standards
- Safety: IEC 60947-1, UL 508, CE Mark.
- EMC: IEC 61000-6-2 (immunity), IEC 61000-6-4 (emissions).
- Environmental: RoHS, REACH.
Conclusion
The ABB LDGRB-01 3BSE013177R1 combines robust motor protection with advanced automation features, making it ideal for industries requiring reliable motor management and energy efficiency. Its modular design, wide communication options, and compliance with global standards ensure adaptability across complex industrial systems.
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