Description
ABB REM545BM222BAAA
Technical Specifications:
- Protection Functions: Advanced differential protection, thermal overload, negative sequence, and loss-of-field protection.
- Measurement Accuracy: High-precision metering class for revenue and operational monitoring.
- System Compatibility: Fully integrated with ABB Relion 670 series and substation automation systems.
Functional Features:
- Condition Monitoring: Continuous assessment of machine health, including bearing temperature and vibration integration.
- Flexible Logic: Programmable logic blocks allow customization of protection schemes without external relays.
- Event Recording: High-resolution transient disturbance recording for detailed post-fault analysis.
Application Scenarios:
Large synchronous generators, gas turbines, and critical high-voltage induction motors in petrochemical and power generation facilities.
Performance Parameters:
- Dependability: Extremely high security against false tripping and dependability for real internal faults.
- Response Time: Ultra-fast differential protection tripping to minimize arc flash energy.
Material Composition:
Premium industrial components with thick conformal coating to resist sulfur, moisture, and corrosive gases typical in heavy industrial environments.
Structural Features:
Standard rack-mounted form factor with a high-resolution graphical display, LED status indicators, and USB port for local data retrieval.
Working Principle:
Digitizes high-speed voltage and current waveforms to calculate precise phasors. It compares these phasors against configured thermal and electrical models of the machine to detect internal faults and abnormal operating conditions.
Installation Requirements:
Requires proper grounding and shielded cabling for all analog inputs. Ensure the control cabinet maintains a stable temperature to preserve measurement accuracy.
Usage Precautions:
Always back up the relay configuration before making modifications. Verify that the motor/generator nameplate data matches the relay settings exactly to prevent nuisance tripping.
