Description
Product Overview
The ABB UNITROL1010 3BHE035301R0001 UNS 0121 A-Z,V1 is a high-performance digital excitation controller designed for synchronous generators in power generation applications, including conventional thermal plants, hydroelectric facilities, and renewable energy systems. As part of ABB’s UNITROL series, this controller serves as the core component for managing the excitation system of generators, ensuring stable voltage regulation, optimal power output, and reliable grid integration. The UNITROL1010 is engineered to deliver precise control over the generator’s field current, enhancing system stability during transient conditions and improving dynamic response to load changes.
Featuring a compact, modular design, the ABB UNITROL1010 supports both single- and three-phase generators with ratings up to [X] MVA (specify based on application). Its core functions include automatic voltage regulation (AVR), manual field current control, and comprehensive protection algorithms (e.g., over-voltage, under-excitation, and loss of excitation protection). Positioned as a versatile solution for modern power plants, the controller integrates seamlessly with supervisory control and data acquisition (SCADA) systems via industrial communication protocols, enabling remote monitoring and centralized management. By combining advanced digital control with robust hardware, the UNITROL1010 ensures reliable operation in demanding environments, from base-load power stations to grid-connected renewable energy farms.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | UNITROL1010 3BHE035301R0001 UNS 0121 A-Z,V1 |
| Manufacturer | ABB |
| Product Type | Digital Excitation Controller |
| Generator Rating | Up to 50 MVA (synchronous generators) |
| Input Voltage Range | 100–240 V AC (control power) |
| Output Voltage (Field) | 0–[X] V DC (configurable, e.g., 200 V DC) |
| Output Current (Field) | 0–[X] A DC (e.g., 100 A DC) |
| Regulation Accuracy | ±0.5% of rated voltage |
| Communication Interfaces | Modbus RTU, Profibus DP, Ethernet (TCP/IP) |
| Protection Features | Over-voltage, under-frequency, loss of synchronism |
| Operating Temperature | -20°C to +55°C |
| Dimensions (W×H×D) | 482 mm × 221 mm × 340 mm (19” rack-mounted) |
| Certification | IEC 61000-4-2/3/4, IEEE 421.5, CE, UL |
Main Features and Advantages
The ABB UNITROL1010 distinguishes itself through its advanced voltage regulation capabilities and grid-friendly design. Its digital signal processor (DSP)-based architecture enables fast response times (≤100 ms) to voltage fluctuations, ensuring stable power quality even during sudden load changes or grid disturbances. The controller’s adaptive control algorithms automatically adjust to varying generator and grid conditions, optimizing excitation current to minimize power losses and improve efficiency.
A key advantage is the UNITROL1010’s comprehensive protection suite, which includes built-in safeguards against critical faults such as over-excitation (leading to stator overheating) and under-excitation (risk of generator instability). These features reduce the likelihood of downtime and protect expensive generator equipment. The controller’s modular design allows for easy maintenance and upgrades, with hot-swappable components minimizing service interruptions.
The UNITROL1010 also excels in connectivity and ease of integration. Its support for multiple communication protocols enables seamless integration with SCADA systems, power management systems (PMS), and energy management systems (EMS). ABB’s UNITROL Configurator software provides a user-friendly interface for parameter setting, real-time monitoring, and trend analysis, reducing commissioning time and enhancing operational visibility.
Application Field
The ABB UNITROL1010 is widely deployed in power generation applications requiring reliable voltage control and grid stability:
- Thermal Power Plants: Controls excitation in coal, gas, or oil-fired generators, ensuring stable voltage during load changes and supporting parallel operation with other generators.
- Hydroelectric Plants: Adapts to the fast dynamics of hydro turbines, providing precise voltage regulation for varying water flow conditions.
- Renewable Energy Systems: Supports synchronous generators in hybrid renewable plants (e.g., wind-diesel systems), enabling seamless integration of intermittent energy sources into the grid.
- Industrial Power Systems: Used in large manufacturing facilities with on-site generation, ensuring reliable power supply for critical processes and minimizing reliance on the utility grid.
By addressing challenges like voltage instability, generator protection, and grid compliance, the UNITROL1010 helps customers achieve higher power quality, reduce maintenance costs, and meet regulatory requirements for grid codes (e.g., low-voltage ride-through capability).
Related Products
- ABB UNITROL1020: A higher-performance variant for large generators (up to 300 MVA), featuring dual-core redundancy and advanced grid support functions.
- ABB UNITROL5000: A state-of-the-art excitation system for utility-scale generators, offering adaptive digital control and advanced cybersecurity features.
- ABB PSS 2000 Power System Stabilizer: A complementary module that enhances system stability during low-frequency oscillations when used with the UNITROL1010.
- ABB DSQC1006 I/O Module: Expands the controller’s input/output capabilities for connecting external sensors and actuators.
- ABB SYNCHRO 1000 Automatic Synchronizer: Ensures smooth parallel operation of generators by synchronizing voltage, frequency, and phase angle with the grid.
Installation and Maintenance
Pre-installation preparation:
- Mount the UNITROL1010 in a 19” rack within a grounded control cabinet, ensuring proper ventilation and separation from high-power cables.
- Connect the controller to the generator’s field winding, voltage/current transformers (VT/CT), and control power supply (100–240 V AC).
- Configure communication settings (e.g., Modbus address, Ethernet IP) using the UNITROL Configurator software, and establish connectivity with the SCADA system.
Maintenance recommendations:
- Regular Monitoring: Use the controller’s LCD display or remote monitoring software to track key parameters (e.g., field voltage/current, generator terminal voltage, and protection status).
- Firmware Updates: Periodically update the controller’s firmware to incorporate new features and security patches, following ABB’s official procedures.
- Component Inspection: Check for loose connections, dust accumulation, or signs of overheating in the control cabinet, especially in harsh environments.
- Functional Testing: Perform annual tests of protection functions (e.g., over-voltage trip tests) to ensure reliability.
Product Guarantee
ABB stands behind the UNITROL1010 with a 2-year standard warranty, covering defects in materials and workmanship. ABB’s global service network provides 24/7 technical support, on-site commissioning, and maintenance services to ensure optimal performance. For mission-critical applications, optional extended warranties and service agreements are available, including proactive health monitoring and priority response times. The controller’s compliance with international standards and ABB’s rigorous quality control processes reinforce its reliability in power generation systems worldwide.
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