ABB UNITROL6080 3ADT218437R0001
Digital Static Excitation System
Product Overview
The ABB UNITROL6080 3ADT218437R0001 is an advanced digital static excitation system designed for synchronous generators in power generation applications. This state-of-the-art excitation system provides precise control of generator voltage and reactive power, ensuring optimal performance, stability, and reliability of power generation units.
Key Features
- • Advanced digital control technology
- • High reliability and availability
- • Flexible configuration options
- • Comprehensive protection functions
- • Integrated monitoring and diagnostics
Applications
- • Thermal power plants
- • Hydroelectric power stations
- • Combined cycle power plants
- • Nuclear power generation
- • Industrial power generation
Technical Specifications
Power Supply
| Control Power: | 110-240 V AC/DC |
| Frequency: | 50/60 Hz (AC) |
| Power Consumption: | < 50 W (control circuit) |
| Redundancy: | Dual redundant power supply |
Excitation System
| Output Voltage: | Up to 1200 V DC |
| Output Current: | Up to 4000 A DC |
| Regulation Accuracy: | ±0.25% (steady state) |
| Response Time: | < 100 ms (field forcing) |
Generator Interface
| Voltage Input: | 100-690 V AC (phase-phase) |
| Current Input: | 0-5 A AC (CT secondary) |
| Frequency Range: | 50/60 Hz ± 5% |
| Field Voltage: | Up to 1200 V DC |
Communication
| Ethernet: | IEEE 802.3, 10/100 Mbps |
| Protocols: | Modbus TCP, IEC 61850, DNP3 |
| Serial: | RS-485 (Modbus RTU) |
| Ports: | 2 Ethernet, 2 Serial |
Environmental
| Operating Temp: | -25°C to +70°C |
| Storage Temp: | -40°C to +85°C |
| Humidity: | 5% to 95% (non-condensing) |
| IP Rating: | IP54 (control cubicle) |
Physical
| Dimensions: | 800 x 600 x 2200 mm (typical cubicle) |
| Weight: | 300-500 kg (depending on configuration) |
| Mounting: | Floor standing cubicle |
| Enclosure: | Steel, IP54 |
Product Features
Advanced Control Algorithms
Utilizes state-of-the-art digital signal processing and control algorithms for precise voltage regulation, reactive power control, and stability enhancement. Adaptive control features optimize performance under varying operating conditions.
High Reliability Design
Redundant architecture with N+1 redundancy for critical components. Hot-swappable modules minimize downtime during maintenance. Extensive self-diagnostic capabilities for early fault detection.
Comprehensive Protection
Integrated protection functions including field overvoltage, field overcurrent, loss of excitation, stator overcurrent, and under/overfrequency protection. Configurable protection settings to meet specific application requirements.
Flexible Configuration
Modular design allows customization for various generator sizes and types. Software-configurable parameters for voltage regulation, power system stabilizer settings, and protection functions.
Integrated Monitoring
Real-time monitoring of all system parameters including generator voltage, current, power factor, field voltage, and field current. Comprehensive event logging and data recording for performance analysis and troubleshooting.
Advanced Communication
Multiple communication interfaces support integration with plant control systems. IEC 61850 compliance for substation automation. Web-based HMI for remote monitoring and control.
Applications
Thermal Power Plants
Optimized for coal, gas, and oil-fired power plants. Provides reliable excitation for steam turbine generators with rapid response to load changes and grid disturbances.
Hydroelectric Power
Ideal for hydroelectric generators including Francis, Kaplan, and Pelton turbines. Special control modes for water turbine applications with load rejection protection.
Combined Cycle Plants
Well-suited for gas turbine and combined cycle applications. Fast response characteristics support the dynamic operation required in these plants.
Nuclear Power
Meets the stringent reliability and safety requirements of nuclear power generation. Redundant design ensures continuous operation even in fault conditions.
Industrial Generation
Suitable for industrial power generation applications including captive power plants, cogeneration, and distributed generation. Enhances power quality and reliability for industrial processes.
Renewable Integration
Supports grid stability in systems with high renewable penetration. Advanced grid support functions including reactive power control and frequency response.
Technical Details
Control Functions
| Voltage Regulation: | PID control with adaptive gain |
| Reactive Power Control: | Manual and automatic modes |
| Power Factor Control: | Fixed or variable setpoint |
| PSS Functions: | Power System Stabilizer |
| Limiter Functions: | V/Hz, Under/Overexcitation |
Power Electronics
| Converter Type: | Thyristor bridge (6-pulse or 12-pulse) |
| Cooling: | Forced air or water cooling |
| Harmonic Filtering: | Input and output filters |
| Firing Circuit: | Digital firing control |
Measurement & Monitoring
| Voltage Measurement: | Precision voltage transformers |
| Current Measurement: | Hall effect sensors |
| Data Logging: | 10,000 events with timestamps |
| Trending: | Configurable parameter trending |
Redundancy & Reliability
| Control Redundancy: | 1+1 or 2+1 redundant controllers |
| Power Supply: | N+1 redundant power supplies |
| MTBF: | > 100,000 hours |
| Availability: | > 99.99% |
Communication Protocols
IEC 61850
- • Edition 2.1 compliant
- • GOOSE messaging for fast control
- • MMS for monitoring and control
- • Sampled Values option
Modbus TCP/RTU
- • Standard Modbus registers
- • Read/write access to parameters
- • Real-time measurements
- • Event notification
DNP3
- • DNP3.0 Level 2 certified
- • Outstation functionality
- • Time synchronization
- • Event reporting
Installation & Maintenance
Installation Requirements
- • Floor Loading: Minimum 600 kg/m²
- • Space Requirements: Allow minimum 1m clearance around cubicle
- • Ventilation: Adequate cooling for power electronics
- • Power Connections: Properly sized cables and circuit breakers
- • Grounding: Separate control and power grounding
Maintenance Guidelines
- • Routine Inspection: Monthly visual inspection
- • Filter Cleaning: Quarterly for air-cooled systems
- • Function Testing: Semi-annual comprehensive testing
- • Calibration: Annual calibration of measuring devices
- • Firmware Updates: As recommended by ABB
Commissioning Steps
- Verify mechanical and electrical installation
- Perform insulation resistance tests
- Power up control circuits and verify functionality
- Configure system parameters via HMI or PC tool
- Perform no-load tests and adjustments
- Conduct load tests and performance verification
- Test protection functions and limits
- Document as-built configuration and test results
Troubleshooting
- • Alarm Analysis: Check HMI for detailed alarm information
- • Event Log: Review event history for fault sequence
- • Parameter Checking: Verify all settings are correct
- • Hardware Testing: Use built-in diagnostics for component testing
- • Service Support: Contact ABB service for technical assistance
Ordering Information
Product Code
Standard Delivery
- • Control cubicle with main controller
- • Power converter module
- • Measuring and protection devices
- • HMI with touch screen
- • Documentation and software package
Optional Accessories
| Accessory | Part Number |
|---|---|
| Redundant controller | 3ADT218438R0001 |
| Remote HMI | 3ADT218439R0001 |
| Programming cable | 3ADT218440R0001 |
| Extended terminal kit | 3ADT218441R0001 |
| Training simulator | 3ADT218442R0001 |
Technical Support
- • Phone: +1-800-ABB-HELP
- • Email: support@abb.com
- • Website: www.abb.com/powergeneration
- • Service: 24/7 technical support available
Warranty
24 months from date of commissioning or 30 months from date of shipment, whichever comes first.
Extended warranty options available up to 5 years.
Certifications
- • IEC 61000 (EMC)
- • IEC 60950 (Safety)
- • CE marked
- • UL listed
© 2025 ABB Group. All rights reserved.
UNITROL6080 3ADT218437R0001 - Intermediate Technical Document
