ABB 3BHE022293R0106 UFC721AE Excitation Interface Board

Feature & Principle

This board is a key signal interface card of ABB UNITROL6000 excitation controller. It collects voltage and current signals from excitation loop, performs signal conditioning and isolation, and realizes data interaction between main control unit and peripheral sampling components. It supports high-speed signal transmission, with overvoltage and surge protection, ensures stable closed-loop regulation of generator excitation current.

Specifications

Model: 3BHE022293R0106 Type: UFC721AE Brand: ABB Series: UNITROL 6000 Power supply: 24VDC Application: Generator excitation cabinet, power plant excitation system Protection: Isolation, surge protection Standard: IEC industrial standard Certification: CE

Components & Diagnostics

Signal isolation circuit, AD sampling chip, communication processor, terminal connector, status LED indicator. Common faults: signal sampling distortion, communication interruption, no power indication, channel failure.

Product Brief

3BHE022293R0106 excitation interface board, ABB UNITROL6000 spare widely used for thermal power, hydropower generator excitation cabinet maintenance and replacement.