The ABB RED670 1MRK002810-AC is a part of ABB’s Relion® product family, designed specifically for line differential protection of overhead lines and cables in power systems. It adheres to the IEC 61850 standard for communication in substations, ensuring seamless integration and communication within the power grid.

Protection Functions

1. Line Differential Protection:
   • Primary function.
   • Detects faults within the protected zone.
   • Uses a high-speed algorithm to compare currents at both ends of the line.
   • Trips circuit breakers upon fault detection.
2. Overcurrent Protection:
   • Protects against overloads and short circuits.
   • Includes three-phase and single-phase overcurrent elements.
   • Features both definite time and inverse time characteristics.
3. Earth Fault Protection:
   • Protects against earth faults.
   • Contains three-phase and single-phase earth fault elements.
   • Includes definite time and inverse time characteristics.
4. Distance Protection:
   • Protects against faults in the protected zone and adjacent zones.
   • Includes three-zone distance protection.
   • Features definite time and inverse time characteristics.

Communication Features

1. IEC 61850 Communication:
   • Supports IEC 61850 standard for substation communication.
   • Enables communication with other IEDs and SCADA systems.
2. Ethernet Communication:
   • Equipped with an Ethernet port for LAN connectivity.
3. Serial Communication:
   • Includes two serial ports for connections to PCs or other devices.

Technical Specifications

• Input Voltage: Undefined.
• Frequency: 50/60 Hz.
• Operating Temperature: -40°C to +70°C.
• Humidity: 5% to 95% RH.
• Dimensions: 230 mm x 160 mm x 100 mm.
• Weight: 3.5 kg.