Technical Specifications Multi‑way DC power output channels, wide‑range auxiliary power input. Typical total power consumption 9.2 W. Operating temperature ‑10 ℃ to +55 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Conformal coated printed circuit board, isolation voltage 2000 V AC between input and output sides.
Functional Features Completes power conversion for excitation rack internal modules. Provides multiple groups of stable isolated DC power outputs. Built‑in over‑voltage, over‑current and short‑circuit protection mechanism. On‑board LED indicates power supply running and fault status. Hardware self‑diagnosis detects power circuit abnormalities. Conformal coating improves moisture‑proof and dust‑proof performance.
Application Scenarios Core internal spare‑part for power plant and industrial power‑station generator excitation systems. Used for equipment overhaul and spare‑part replacement.
Performance Parameters Each output channel maintains stable voltage output under load fluctuation. Protection circuit responds rapidly under abnormal electrical conditions. Self‑diagnosis accurately captures power supply faults.
Material Composition Multilayer glass‑fiber epoxy printed circuit board. Power transformation components, switching power chips, over‑current protection assemblies. Conformal protective coating. Multi‑pin back‑plane plug‑in connectors and input‑output signal terminals.
Structural Characteristics Plug‑in circuit board matching excitation cabinet internal slot. Board edge equipped with back‑plane connector and power wiring terminals. Reserved mechanical fixing holes.
Working Principle After receiving auxiliary input power, internal conversion circuit completes voltage transformation, rectification, filtering and isolation processing. Multiple groups of stable DC voltages are output to each functional board through back‑plane bus. Protection circuit monitors output voltage and current in real‑time and triggers protection action when abnormality occurs.
Installation Requirements Cut off all power sources of excitation cabinet before replacement. Insert UUD148AE01 into designated slot and tighten fixing screws.
Usage Notes Adopt anti‑static wrist strap during disassembly and assembly. Do not scratch conformal coating surface. Hot‑plug operation under powered state is strictly forbidden. Check input power quality before putting into operation.
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