Technical Specifications Multi‑channel high‑precision analog sampling input, pulse trigger output. Auxiliary power from excitation rack, typical power consumption 8.6 W. Operating temperature ‑10 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Conformal coated surface, signal channel isolation voltage 2000 V AC.
Functional Features High‑precision sampling of generator voltage and current signals. Optimized excitation closed‑loop regulation algorithm. Output trigger pulse for thyristor power unit. Expanded fault event recording capacity. Enhanced hardware self‑diagnosis coverage. Improved EMC anti‑interference capability.
Application Scenarios Used for upgrading replacement and spare‑part maintenance of generator excitation system in power plant and industrial power station. Compatible with corresponding excitation rack hardware.
Performance Parameters Improved sampling accuracy for excitation feedback signals. Regulation response adapts to strong electromagnetic interference site environment. Fault recording storage capacity increases compared with previous version.
Material Composition Multilayer glass‑fiber epoxy printed circuit board with anti‑interference layout. High‑performance processor, high‑precision sampling components. Conformal protective coating. Multi‑pin back‑plane plug‑in connectors. Screw‑type signal terminals.
Structural Characteristics Plug‑in board with same mechanical dimension as UFC719AE01, mechanical interchangeable. Board edge equipped with back‑plane connector and signal terminals. Reserved fixing holes. Weight approximately 0.73 kilogram.
Working Principle After power‑on, board finishes hardware self‑check. It continuously collects generator voltage and current feedback signals. Internal processor executes optimized excitation regulation algorithm and outputs trigger pulse to adjust thyristor conduction angle.
Installation Requirements Cut off all power sources of excitation cabinet before installation. Insert board into target slot and tighten fixing screws. Confirm connectors are fully engaged.
Usage Notes Adopt anti‑static protection during disassembly‑assembly. Do not scratch conformal coating layer. Hot‑plug operation is forbidden. Back‑up original excitation parameters before replacement. Complete no‑load excitation simulation test after installation.
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