Description
1. Product Title
ABB REM545BG229AABA‑ Machine Protection Terminal
2. Product Overview
The REM545BG229AABA is a multi‑functional numerical machine protection terminal within ABB Relion REM545 series, engineered for comprehensive protection, measurement, control and disturbance recording for rotating assets. This unit consolidates overcurrent, earth‑fault, phase unbalance, thermal overload, stall and voltage‑related protection functions in one compact hardware unit. It integrates embedded programmable logic to reduce external auxiliary relays, minimizing cabinet wiring points and potential failure sources. Equipped with high‑speed fault logging and self‑monitoring, REM545BG229AABA detects abnormal operating conditions rapidly, helping prevent catastrophic motor or generator damage and unplanned production downtime in harsh medium‑voltage industrial environments.
3. Technical Specifications
- Brand: ABB
- Model: REM545BG229AABA
- Warranty: One Year
- Condition: 100% New & Original
- Input/Output: 25 digital binary inputs, 18 relay outputs; supports RTD temperature sensor inputs, conventional CT / VT measurement interfacesABB Group
- Operating Temp: ‑20 °C ~ +70 °C (operating); ‑40 °C ~ +85 °C (storage)
- Communication: SPA bus, LON bus, Modbus RTU; IEC 61850 supported via external communication adapterABB Group
- Weight: Approximately 7.7 kgABB Group
- Core Functions: Rotating machine protection, electrical metering, programmable logic control, fault disturbance recording, device self‑supervision
4. Application Scenarios
- Thermal & Hydro Power Plants: Used for medium‑size generator set protection; monitors motoring condition, loss of excitation and frequency deviation to safeguard generator‑transformer auxiliary units.
- Mining Process Plants: Protect large medium‑voltage drive motors for grinding mills, crushers and heavy conveyors; thermal and stall protection prevents winding burnout under heavy starting and fluctuating load conditions.
- Petrochemical Process Sites: Deployed on critical pump and compressor motors within refinery process loops, delivering fast fault isolation and event logging to maintain continuous process safety.
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