Standard Name: ABB REC670 Series Digital Relay Protection & Measurement-Control Device (Model: 1MRK002814-AB)Common Name: REC670 Relay Protection DeviceProduct Line: ABB Relion® Series (for medium/high-voltage power systems) ABB REC670 1MRK002814-AB is a digital integrated device for power transmission/distribution networks (110kV-220kV, adaptable to 35kV-500kV), integrating 4 core functions: protection, measurement, control, and communication. It is widely used in power systems, industrial grids (petrochemical, metallurgy, rail transit), and new energy stations (wind, photovoltaic).
- Protection: Covers main/backup/auxiliary protection (e.g., 3-stage distance protection, overcurrent protection for lines; expandable non-electrical protection for transformers/busbars), with millisecond-level action time for fast fault isolation.
- Measurement: Real-time collection of power parameters (voltage, current, power, etc.) with Class 0.2 accuracy; supports 31st-harmonic analysis and device status monitoring.
- Control: Enables remote/local operations (circuit breaker control, setting adjustment) with misoperation prevention; records SOE events (≤1ms resolution) and fault waveforms.
- Communication: Integrates Ethernet/RS485, supports IEC 61850, IEC 60870-5-103, Modbus; connects to SCADA/smart substation systems.
- High reliability: Dual-CPU architecture, -40℃~+70℃ operating temperature, IP40 protection, IEC 61000-6-2 anti-interference.
- Flexibility: Software-configurable protection logic, expandable I/O modules, online firmware upgrade.
- User-friendly: LCD display (320×240), USB data export for on-site debugging.
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