Technical Specifications Back‑plane system bus interface, multi‑group analog measuring input and pulse output channels. Auxiliary working power 24 V DC. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Multiple hardware limit protection circuits integrated.
Functional Features Acquires generator voltage, current and auxiliary measuring signals. Executes multi‑mode excitation closed‑loop regulation. Realizes over‑excitation and under‑excitation hardware limit protection. Outputs trigger pulses to excitation power unit. Uploads fault alarm and event record data to upper monitoring system. Front‑panel LED indicators display running, limit action and fault status. Built‑in comprehensive hardware self‑diagnosis function.
Application Scenarios Spare main regulator board for large‑scale ABB generator excitation system. Applied in power plant generating set control cabinet overhaul.
Performance Parameters Fast multi‑loop regulation response speed. Accurate hardware limit protection action. Stable long‑time continuous operation performance.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. High‑speed signal sampling, regulation calculation and pulse trigger assemblies. Back‑plane plug‑in connector and field signal terminals.
Structural Characteristics Standard large‑size rack plug‑in module. Front side equipped with multi‑group signal terminals and multi‑bit status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.45 kg.
Working Principle Multi‑path generator measuring signals enter module. After analog‑digital conversion, regulator executes regulation algorithm and various limit logic, outputs trigger pulse to power rectifier. Self‑diagnosis circuit monitors hardware and signal loop continuously and generates fault record when abnormality occurs.
Installation Requirements Insert KUC711AE 3BHB004661R0001 into designated rack slot and lock fixing latch. Connect field measuring signal wiring to front‑end terminals. Confirm back‑plane connector is fully engaged. Restore power supply, download excitation configuration parameters and complete generator regulation function commissioning.
Usage Notes Must match original project excitation parameter setting. Hot‑plug under powered state is prohibited. Perform full‑function protection simulation test after replacement.
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