ABB AFP9075355 3BHS537443 UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 Digital Excitation Controller Assembly

ABB AFP9075355 3BHS537443 is a complete excitation control assembly, internally integrated with UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001 digital AVR regulator. It belongs to the UNITROL1000 series brushless excitation platform for medium and small synchronous generators.

This assembly integrates control core, power drive, signal sampling and communication circuits. It supports automatic voltage regulation, reactive power control and parallel grid operation. It comes with local LCD man-machine interface and multiple built-in protection functions for generator excitation loops.

Data Parameters

• 1. Brand: ABB.

• 2. Model: AFP9075355 3BHS537443 (Built-in UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001).

• 3. Product Type: Integrated Digital Excitation Controller Assembly.

• 4. Application: UNITROL1000 Series Brushless Excitation System.

• 5. Feature: Dual processor architecture, built-in LCD HMI, wide-range power supply.

• 6. Characteristic: High AVR regulation accuracy, complete excitation protection logic.

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

• 8. Package: Complete assembled excitation controller unit.

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

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

Core Functions

• 1. Real-time sampling of generator PT/CT signals for closed-loop AVR voltage regulation.

• 2. Realize reactive power adjustment, power factor control and generator paralleling.

• 3. Provide excitation overcurrent, overvoltage, loss-of-field and rotor protection.

• 4. Store fault event records and support local display and remote parameter commissioning.

• 5. Upload operating data and alarm information to plant DCS or SCADA system.

Application Scenarios

• 1. Small & medium hydro, gas and diesel synchronous generator sets.

• 2. Industrial self-owned power plant and cogeneration unit excitation cabinet.

• 3. Marine generator, emergency backup power generation system.

• 4. ABB UNITROL1020 excitation system retrofit, commissioning and spare replacement.

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

FAQ

• 1. Q: What is ABB AFP9075355 3BHS537443?
      A: It is a complete excitation assembly with built-in UNITROL1020 AVR controller.

• 2. Q: What is the internal core model?
      A: The built-in control core is UNITROL1020 UNS0119A-Z,V1 3BHE030579R0001.

• 3. Q: What software is used for commissioning?
      A: Adopt CMT1000 configuration software for parameter setting and fault diagnosis.