Description
ABB UNITROL 1020 3BHE030579R0003
ABB UNITOL 1020 (3BHE030579R0003) Product Introduction
ABB UNITROL 1020 3BHE030579R0003
[Product Positioning]
ABB UNITOL 1020 is a compact automatic voltage regulator (AVR) in the UNITOL 1000 series, designed as an indirect excitation control system for small and medium-sized synchronous generators and industrial equipment. The complete model is UNITOL 1020 UNS0119A-Z, V1, with material number 3BHE030579R0003.
[Core Function]
Automatic voltage regulation: Based on PID control algorithm, accurately adjust the excitation current to maintain stable output voltage, with a control accuracy of about plus or minus 0.5%
Parallel operation: Built in dual channels, supporting load distribution and power factor adjustment when multiple generators are connected in parallel
Automatic synchronization: Automatically complete the synchronization and grid connection between the generator and the power grid
Rotating diode monitoring: Real time monitoring of rotating diode status (optional circuit board required)
Quick response: Using IGBT semiconductor devices, the continuous output current can reach 10ADC, quickly responding to sudden load changes
[Key Technical Specifications]
Input voltage range: 380 to 480V
Output voltage range: 0 to 416V
Output frequency range: 0 to 65Hz
Rated current: 24A
Rated power: 22kW
Working temperature: minus 40 degrees Celsius to 70 degrees Celsius
Storage temperature: minus 40 degrees Celsius to 85 degrees Celsius
Protection level: IP40
Seismic resistance: 30g
Certification standards: DNV, UL
Communication and Interface
Ethernet port (RJ45): Connect CMT1000 debugging and maintenance tool
USB port: No external power supply required to configure, upload events and data logs
RS485: Supports Modbus RTU and VDC communication
CAN bus: used for dual channel communication
Digital I/O: 4 inputs (configurable) plus 8 I/O (configurable)
Analog I/O: 2 outputs, 3 inputs (configurable), positive and negative 10V reference output
Supports multiple protocols such as Modbus, Profibus, Ethernet, etc
[Structural Features]
Separate communication and control tasks, independently completed by different controllers to improve reliability
Non volatile flash storage events and data logs for easy fault analysis
LED indicator lights: green indicates power and operation, yellow indicates excitation and limiter, red indicates alarm
Durable mechanical design, can be directly installed in the machine junction box, suitable for high vibration environments
Pull spring terminal, maximum continuous current 30A, maximum cable 4 square millimeters (AWG 24 to 10)
Typical application scenarios
Power plants: excitation control for small and medium-sized generators
Industry: Voltage stability driven by motors such as pumps, fans, and conveyors
Ship: Voltage regulation of ship power system
Rail Transit: Some versions comply with EN50155 standard
[One sentence summary]
UNITROL 1020 (3BHE030579R0003) is a cost-effective indirect excitation AVR designed by ABB for small and medium-sized units. It features IGBT power devices and microprocessors as its core, balancing high-performance control with compact design, making it suitable for industrial scenarios that require stable excitation and limited space.
For detailed data sheets of this model, it is recommended to visit ABB’s official UNITOL product page to obtain the latest version.
