ABB 3BHE037864R0104 UFC911B104 Excitation Controller

ABB 3BHE037864R0104 UFC911B104 Excitation Controller

The ABB 3BHE037864R0104 UFC911B104 is a digital excitation controller from ABB’s Unitrol® F series, designed for precise voltage regulation and control of synchronous generators in power generation systems. This advanced controller ensures stable operation of generators in applications ranging from power plants to industrial facilities. Below is a detailed breakdown of its features, technical specifications, and industrial applications.

1. Key Features

• Voltage Regulation:
  • Automatic Voltage Regulator (AVR) with ±0.5% static accuracy for precise control of generator terminal voltage.
  • Supports droop compensation and cross-current compensation for parallel generator operation.
• Protection and Diagnostics:
  • Integrated protection against overvoltage, undervoltage, overexcitation, loss of field, and frequency deviations.
  • Real-time fault recording and event logging for root cause analysis.
• Flexible Control Modes:
  • Multiple control modes: AVR (Automatic Voltage Regulator), FCR (Field Current Regulator), and PF/PQ (Power Factor/Reactive Power).
  • Black start capability for grid restoration after outages.
• Communication and Integration:
  • Modbus RTU/TCP, Profibus DP, and IEC 61850 protocols for seamless integration with SCADA, DCS, or plant control systems.
  • Human-Machine Interface (HMI) with LCD display for local configuration and monitoring.
• Robust Design:
  • Operating Temperature: -25°C to +70°C (-13°F to +158°F).
  • IP20-rated enclosure for protection against dust and limited moisture ingress.
  • Compliant with IEC 61000-6-2/4 for electromagnetic compatibility (EMC).

2. Technical Specifications

3. Functional Capabilities

• Generator Control:
  • Maintains stable voltage and reactive power output under varying load conditions.
  • Supports islanded operation (standalone) and grid-connected modes.
• Synchronization:
  • Automatic synchronization with the grid or other generators via synchro-check relay.
• Adaptive Tuning:
  • Self-tuning algorithms for optimal dynamic response during load changes.
• Redundancy:
  • Optional redundant excitation systems for critical applications (e.g., nuclear plants).

4. Applications

• Power Generation:
  • Voltage regulation for gas turbines, hydro generators, steam turbines, and diesel gensets.
• Renewable Energy:
  • Control of synchronous condensers in wind/solar farms for grid stability.
• Industrial Facilities:
  • Backup power systems and cogeneration plants.
• Marine and Offshore:
  • Power management on ships and offshore platforms.

5. Integration and Compatibility

• ABB Ecosystem:
  • Integrates with ABB’s System 800xA, Symphony Plus, and MicroSCADA for centralized control.
  • Compatible with ABB REG670 protection relays.
• Third-Party Systems:
  • Connects to PLCs, SCADA, or energy management systems via Modbus or IEC 61850.

6. Advantages

• High Reliability: Designed for 24/7 operation in harsh environments.
• User-Friendly Configuration: Intuitive HMI and PC-based tools (e.g., ABB MFR Tool) for parameter adjustments.
• Cybersecurity: Secure communication protocols (e.g., IEC 61850 with encryption).
• Global Compliance: Meets IEEE C37.90, IEC 60034, and NEMA MG-1 standards.

7. Software and Configuration Tools

• ABB MFR Tool: Software for parameter setting, diagnostics, and firmware updates.
• DriveComposer: Optional tool for advanced tuning and performance optimization.

8. Ordering and Support

• Replacement Part: Use part number 3BHE037864R0104 for direct compatibility.
• Accessories:
  • Field cabling kits, redundant power supplies, and communication gateways.

9. Summary

The ABB 3BHE037864R0104 UFC911B104 is a state-of-the-art excitation controller that ensures stable and efficient operation of synchronous generators in diverse power systems. Its precision, robust design, and integration capabilities make it ideal for applications demanding high availability and compliance with global standards.