Product Details

ABB UAC389AE02 HIEE300888R0002 is a high-performance excitation control board designed for ABB UNITROL generator excitation systems. The excitation control board undertakes core signal sampling, closed-loop voltage regulation and protection logic processing for the generator excitation unit. This ABB UAC389AE02 board collects real-time generator voltage and current signals, calculates the excitation output, and maintains stable generator terminal voltage under varying load conditions. The generator control board integrates multiple protection functions such as overexcitation, underexcitation and loss of field protection to prevent generator equipment damage. It adopts optical communication interface for high-speed data transmission between internal control units, and has strong anti-electromagnetic interference performance to adapt to harsh power plant environments. The board supports real-time fault diagnosis and status feedback, which helps maintenance personnel quickly locate abnormal points. Widely used in thermal power, hydropower and other power generation projects, it is a key spare part for generator excitation system maintenance and upgrade. It is rack-mounted for easy installation, replacement and maintenance.

Parameters and Specifications

Brand: ABB

Model: UAC389AE02 HIEE300888R0002

Product Type: Excitation Control Board

Application: ABB UNITROL generator excitation system

Power Supply: 24V DC

Communication: Optical fiber interface

Protection Class: IP20

Operating Temperature: +5°C ~ +55°C

Condition: New or tested used spare parts