ABB HIEE300024R4 UAA326A04 UNITROL Control Interface Board in stock

ABB HIEE300024R4 UAA326A04 is a plug-in control interface board for ABB UNITROL generator excitation systems. It collects analog and digital field signals, converts and transmits data between the main controller and peripheral signal circuits for excitation regulation and protection logic.

This board is designed for subrack installation inside excitation cabinets, with built-in signal conditioning and noise suppression. It is widely used as spare replacement in thermal and hydropower plants to maintain stable generator excitation control and grid-connected operation.

Main Specifications

1. Brand: ABB; Model: UAA326A04; Part No:HIEE300024R4; Series: UNITROL Excitation System

2. Type: Plug-in Signal Control Interface Board

3. Signal Type: Analog & digital signal acquisition and conditioning

4. Bus Interface: Backplane bus communication with UNITROL main controller

5. Operating Temp: -20℃ ~ +70℃; Industrial EMC noise protection

6. Mounting: Standard subrack plug-in installation inside excitation cabinet

Core Functions

1. Acquire and condition analog and digital signals from generator and transformer measuring points.

2. Transmit processed field data to UNITROL main controller via rack backplane bus.

3. Filter interference signals to guarantee stable and accurate sampling for AVR regulation.

4. Transfer control output signals from main controller to peripheral excitation power circuits.

5. Monitor board operating status and report hardware faults to the system for alarm handling.

6. Plug-in PCB design for quick maintenance and direct replacement in excitation subrack.

Application Scenarios

1. ABB UNITROL static excitation cabinets for thermal and hydropower generators.

2. Signal sampling and interface control for synchronous generator voltage regulation systems.

3. Maintenance and faulty interface board replacement of existing power plant excitation systems.

4. Generator set renovation and UNITROL excitation system upgrade projects.

5. Power station electrical spare parts inventory for overhaul and maintenance teams.

6. Industrial self-owned power plant generator excitation control cabinets.

FAQ

1. Q: What is ABB HIEE300024R4 UAA326A04?
   A: It is plug-in control interface board for ABB UNITROL generator static excitation systems.

2. Q: What is its main function?
   A: It collects and conditions field signals, realizes data exchange between excitation controller and field circuits.

3. Q: Where is it installed?
   A: It is plugged into the standard subrack inside UNITROL generator excitation cabinet.