Products Description
ABB XUD194 3BHC018137R0001 Excitation Hybrid I/O Module in stock
ABB XUD194 3BHC018137R0001 is a hybrid input and output module based on the AC800PEC platform for ABB UNITROL generator excitation system. It integrates analog and digital signal acquisition and output functions, responsible for collecting PT/CT signals and sending pulse commands to the power unit.

This module adopts high-density connector design and high-voltage isolation circuit between control and power sides. It supports fast closed-loop AVR regulation and built-in fault diagnosis, widely used for excitation cabinet renovation and spare replacement of synchronous generators in power plants.


Data Parameters
1. Brand: ABB.
2. Model: XUD194 3BHC018137R0001.
3. Product Type: Excitation Hybrid I/O Module.
4. Application: UNITROL Excitation System, AC800PEC Platform.
5. Feature: Mixed analog & digital I/O, high voltage isolation design.
6. Characteristic: High EMC performance, comprehensive self-diagnosis function.
7. Communication: Internal high-speed control bus, Ethernet interface.
8. Package: Original rack module assembly.
9. Mounting: Rack installation inside excitation control cabinet.
10. Operating Temperature: -25℃ ~ +70℃.
Core Functions
1. Collect generator voltage, current and switch status signals on site.
2. Execute automatic voltage regulation and reactive power control logic.
3. Output trigger pulses to drive thyristor rectifier power unit.
4. Detect circuit faults such as overvoltage, overcurrent and open circuit.
5. Upload real-time operating data and alarm information to DCS system.
Application Scenarios
1. Thermal power and hydropower station synchronous generator excitation cabinet.
2. Self-provided power plant generator set voltage regulation control system.
3. ABB UNITROL excitation system upgrade, commissioning and spare replacement.
4. Grid-connected generator stability control and reactive power adjustment.
5. Power industry excitation control spare parts inventory backup.
FAQ
1. Q: What is ABB XUD194 3BHC018137R0001?
A: It is a hybrid I/O module for ABB UNITROL generator excitation system.2. Q: Which control platform does it belong to?
A: It works based on ABB AC800PEC high-performance control platform.3. Q: Can it realize AVR automatic voltage regulation?
A: Yes, it supports closed-loop AVR regulation and reactive power adjustment.