Technical Specifications Multi‑channel analog sampling input interface, trigger pulse output terminals. Auxiliary control power 24 V DC, typical power consumption 5.6 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Conformal coated printed circuit board.
Functional Features Receives generator voltage and current transformer sampling signals. Runs excitation closed‑loop regulation logic. Generates and outputs trigger pulse signals for thyristor power unit. On‑board LED indicates regulation running status and hardware fault information. Built‑in hardware self‑diagnosis detects sampling loop and pulse output circuit faults.
Application Scenarios Core spare part for ABB generator static excitation system. Used for power plant generator excitation cabinet overhaul and hardware replacement.
Performance Parameters High‑precision excitation regulation performance. Fast response for generator working condition change. Stable long‑term continuous operating capability.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Signal conditioning, operation processing and pulse generation assemblies. Conformal protective coating. External sampling terminals and internal plug‑in connectors.
Structural Characteristics Cabinet fixed‑mount circuit board. Equipped with external signal sampling terminals and multi‑group internal connectors. Reserved mechanical fixing holes. Weight approximately 0.55 kilogram.
Working Principle Generator voltage and current sampling signals are input for conditioning processing. Internal processor executes excitation control algorithm according to set parameters. Trigger pulse signals are generated and sent to thyristor power unit. Diagnosis circuit continuously monitors sampling channels and pulse output loops.
Installation Requirements Completely cut off excitation cabinet main power and auxiliary power before replacement. Fasten ASE2UDC920AE01 to specified mounting position. Complete external sampling signal wiring and internal connector connection. Restore power supply, perform signal calibration and generator excitation closed‑loop test.
Usage Notes Strictly implement electrostatic protection requirements. Verify sampling signal polarity after installation. Do not scratch conformal coating surface. Carry out complete excitation system function verification after replacement.
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