Technical Specifications Multi‑channel high‑precision analog sampling input, pulse trigger output channels. Auxiliary power supplied by excitation rack, typical power consumption 8.4 W. Operating temperature ‑10 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Conformal coated circuit board, signal channel isolation voltage 2000 V AC.
Functional Features Samples generator terminal voltage, stator current and rotor feedback signals. Executes closed‑loop excitation regulation algorithm. Output trigger pulse for thyristor power unit. Stores fault records and event logs. Built‑in comprehensive hardware self‑diagnosis function. Conformal coating improves anti‑moisture and anti‑dust capability.
Application Scenarios Applied for medium and large generator excitation systems in thermal power plants, hydropower stations and industrial self‑power plants. Used for equipment maintenance and spare‑part replacement.
Performance Parameters High‑precision sampling for excitation feedback signals. Fast regulation response meets generator dynamic adjustment requirements. Non‑volatile memory retains fault event data after power loss. Self‑diagnosis accurately captures sampling circuit and output channel faults.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Industrial‑grade processor, high‑precision sampling chips. Conformal protective coating. Multi‑pin back‑plane plug‑in connectors. Screw‑type signal wiring terminals.
Structural Characteristics Standard plug‑in circuit board for excitation cabinet slot installation. Board edge equipped with back‑plane connector and external signal terminals. Reserved mechanical fixing holes.
Working Principle After power‑on, the board completes hardware self‑check. It continuously collects generator voltage and current feedback signals. Internal processor executes excitation regulation algorithm according to configuration parameters.
Installation Requirements Completely cut off excitation cabinet main power and control power before replacement. Insert UFC765AE102 board into designated slot and tighten fixing screws. Ensure all connectors are fully locked.
Usage Notes Strictly implement anti‑static protection during handling. Do not scratch conformal coating surface. Prohibit plug‑and‑unplug under powered condition. Back‑up excitation parameters and historical fault records before board replacement. Complete no‑load excitation simulation test after installation.
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