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Products Description
Technical Specifications
Model: AV94a (Part No:HESG440940R11)
Series: ABB REG216 Generator‑Transformer Protection System
Function: Multi‑channel relay signal output, protection command transmission
Form factor: Standard 6U Eurocard for 19‑inch rack mounting
Output channels: Multiple built‑in power relays for trip and signal indication output
Supply: 24 VDC rack auxiliary power
Communication: Data interaction with main CPU board via backplane bus
Indicators: On‑board status indicators for relay operating state
Operating Temperature: 0℃ ~ +60℃
Applicable System: ABB REG216 generator and transformer protection rack
AV94a is a relay output board for the ABB REG216 generator‑transformer protection system. It receives protection operation commands from the main processing board through backplane bus, drives on‑board relays to output trip and alarm signals to external field equipment.
The module is equipped with multiple high‑reliability power relays, which can output protection trip signals, fault indication and status alarm signals. Standard 6U plug‑in Eurocard structure supports convenient on‑site replacement. On‑board status indicators help maintenance personnel quickly judge relay action status. With good anti‑interference performance, it adapts to strong electromagnetic interference environment of power plant control cabinets.
It is widely used in thermal power and hydropower plant generator and main transformer protection cabinets. Cut off all control power before replacement, verify hardware revision compatibility. Suitable for on‑site fault replacement and long‑term spare stocking for existing REG216 systems.
