ABB UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 Digital Automatic Voltage Regulator

ABB UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 is a compact digital AVR regulator belonging to ABB UNITROL1000 excitation series. It serves as the core control unit for synchronous generator excitation system, widely applied for brushless excitation of medium and small generator sets.

This controller integrates sampling, regulation, protection and communication circuits, equipped with local LCD HMI. It supports constant voltage, constant power factor and reactive power control modes, and can realize generator synchronization and grid-connected stable operation with complete excitation protection functions.

Data Parameters

• 1. Brand: ABB.

• 2. Model: UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001.

• 3. Product Type: Digital Automatic Voltage Regulator (AVR).

• 4. Application: UNITROL1000 Series Generator Brushless Excitation System.

• 5. Feature: Multi control modes, built-in LCD display, high regulation precision.

• 6. Characteristic: Rich excitation protection, strong EMC anti-interference performance.

• 7. Communication: Modbus TCP, IEC61850, RS485, USB commissioning port.

• 8. Package: Original AVR controller unit.

• 9. Mounting: Rack installation inside generator excitation cabinet.

• 10. Operating Temperature: -40℃ ~ +70℃.

Core Functions

• 1. Collect PT/CT voltage and current signals to realize closed-loop AVR voltage regulation.

• 2. Support constant power factor, constant reactive power and parallel grid operation control.

• 3. Provide overexcitation, underexcitation, overvoltage and loss-of-field protection logic.

• 4. Store fault event records, support local parameter setting and online commissioning.

• 5. Transmit generator running data and alarm signals to DCS or SCADA monitoring system.

Application Scenarios

• 1. Medium & small hydro, gas and diesel synchronous generator units.

• 2. Cogeneration plant, industrial self-owned power station excitation cabinet.

• 3. Marine generator, emergency backup power generation excitation control.

• 4. UNITROL1020 excitation system retrofit, maintenance and spare replacement.

• 5. Power industry generator excitation control spare parts inventory backup.

FAQ

• 1. Q: What is ABB UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001?
      A: It is the core digital AVR controller of ABB UNITROL1020 excitation system.

• 2. Q: What software is used for parameter configuration?
      A: Adopt CMT1000 configuration tool for commissioning, calibration and fault diagnosis.

• 3. Q: Can it be used independently?
      A: It can work as standalone AVR or be integrated into complete excitation assembly like AFP9075355.