ABB UNITOLO1020 UNS0119A-Z, V1 3BHE030579R0001 High Performance Digital Excitation Controller

Description

The ABB UNITROL 1020 UNS0119A-Z, V1 3BHE030579R0001 is a high-performance brushless exciter control system, part of ABB’s UNITROL 1000 series. It is designed specifically for synchronous generators in power generation applications, ensuring stable voltage regulation and optimal generator performance under varying load conditions.

Key Specifications:

• Product Type: Brushless Exciter Control System
• Control Modes: Automatic Voltage Regulation (AVR), Manual Control
• Input Voltage: 100–240 VAC ±10%, 50/60 Hz
• Output Current: 10 A continuous (maximum 15 A peak)
• Dimensions: 482.6 mm (W) × 221 mm (H) × 340 mm (D)
• Weight: Approximately 12 kg
• Communication Interfaces: RS-485 (Modbus RTU), Ethernet (Modbus TCP)
• Operating Temperature: -25°C to +55°C
• Humidity: 5%–95% non-condensing
• Certifications: CE, UL, IEC 61000-4-2/3/4, IEEE 421.5

Main Features and Advantages:

• Precision Voltage Regulation: Voltage regulation accuracy within ±0.5% of rated voltage using advanced PID control algorithms to maintain stable voltage during load changes.
• Dual Control Modes: Offers both automatic voltage regulation and manual control modes for flexibility during generator startup, shutdown, and maintenance.
• Modular Design: Modular construction allows easy replacement of individual components without system disruption, reducing downtime.
• Comprehensive Diagnostics: Real-time monitoring of excitation current, voltage, temperature, overvoltage/undervoltage alerts, and communication status to enable proactive maintenance.
• Communication Capabilities: Supports Modbus RTU and Modbus TCP protocols allowing integration into larger SCADA systems for remote monitoring and control.
• Robust Build: Designed to withstand harsh power generation environments, including high humidity, dust, and electromagnetic interference.

Typical Application Areas:

• Thermal and hydropower plants for steam and hydro turbine excitation
• Combined cycle power plants for seamless synchronization and parallel generator operation
• Industrial backup and remote generators in manufacturing and oil & gas
• Renewable energy systems including wind farms and solar power plants

Installation and Maintenance:

• Ensure proper input voltage (100–240 VAC) and grounded control panel environment to minimize electrical noise.
• Mount in ventilated enclosures with appropriate heat dissipation.
• Use shielded cables for connecting to excitation systems and sensors to reduce electromagnetic interference.
• Regularly inspect status indicators, clean ventilation openings, perform annual calibration of sensors, and update firmware to maintain optimal performance.

Summary

The ABB UNITROL 1020 UNS0119A-Z, V1 3BHE030579R0001 is a reliable, precise, and flexible excitation control system for power generation, offering advanced voltage regulation, comprehensive diagnostics, and robust industrial performance essential for modern power plants and industrial generators. It supports smooth synchronization, load sharing, and effective grid integration, with communication options that enhance remote monitoring and control capabilities.The ABB UNITROL 1020 UNS0119A-Z, V1 3BHE030579R0001 is a high-performance brushless exciter control system used for synchronous generators in power generation. It features precise automatic voltage regulation (±0.5% accuracy), dual automatic/manual control modes, and advanced PID algorithms for stable voltage under varying loads. The system supports communication protocols like Modbus RTU and Ethernet Modbus TCP, facilitating integration into SCADA systems.

It operates with an input voltage range of 100–240 VAC, delivers 10 A continuous (15 A peak) output current, and is designed for robust industrial environments with operating temperatures from -25°C to +55°C and high humidity tolerance. Its modular design allows easy maintenance by replacing individual components without disrupting the system.

Typical applications include thermal/hydro power plants, industrial generators, and renewable energy systems like wind farms and solar plants. Installation requires proper grounding, ventilation, shielded cabling, and regular maintenance including calibration and firmware updates to ensure long-term stable operation.

Overall, the UNITROL 1020 offers reliable, flexible, and precise excitation control critical for modern power generation and industrial generator stability and efficiency