Technical Specifications Back‑plane system bus interface, multi‑channel analog measuring input and trigger pulse output. 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 and protection circuits integrated.
Functional Features Collects generator voltage, current and auxiliary measuring signals. Executes multi‑mode excitation closed‑loop regulation algorithm. Realizes over‑excitation, under‑excitation and stator‑current‑related hardware limit protection. Outputs trigger pulse signals to excitation power rectifier unit. Uploads fault alarm, event record and operating 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 control board for ABB generator excitation cabinet. Applied in thermal power and hydropower generating set control cabinet overhaul project.
Performance Parameters Fast closed‑loop regulation response speed. Accurate hardware limit protection action characteristic. Stable long‑term 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 rack plug‑in module. Front side equipped with multi‑group measuring signal terminals and multi‑bit status LED indicators. Rear side fitted with back‑plane bus connector.
Working Principle Multi‑path generator measuring signals input to module terminals. After analog‑digital conversion, excitation regulation algorithm and various limit protection logics are executed, trigger pulses are output to power rectifier unit. Self‑diagnosis circuit continuously monitors hardware and signal loop and generates fault record when abnormality occurs.
Installation Requirements Connect field measuring signal wiring strictly according to terminal definition. 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 operation under powered condition is prohibited. Perform protection simulation test after hardware replacement.
There are no reviews yet.