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RED670 1MRK002810-AC ABB
RED670 1MRK002810-AC ABB - Image 2
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RED670 1MRK002810-AC ABB

Original price was: $6,786.00.Current price is: $4,353.00.

Field function (what it actually does)

ABB RED670 1MRK002810-AC is a line protection device, not a bay controller and not a busbar relay.

Core logic in real systems:

  • Measures phase currents at both line terminals
  • Exchanges data over a dedicated communication channel (typically fiber optic)
  • Performs differential calculation in real time
  • Trips circuit breakers if internal fault is confirmed

External faults: current balance → no trip
Internal faults: imbalance → fast trip (sub-cycle range depending configuration)

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Category: SKU: RED670 1MRK002810-AC ABB
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  • Phone:+86 15340667322
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    • Description

    System placement in substation architecture

    Typical protection layering in transmission systems:

    • Busbar protection: REB670 / REB500 series
    • Bay control & interlocking: REC650 / REC670
    • Line protection: ABB RED670 1MRK002810-AC

    Typical application zones:

    • 132 kV / 220 kV / 400 kV transmission lines
    • Long interconnection feeders between substations
    • Ring and meshed grid corridors
    • High fault level transmission networks

    It is the primary protection element for line faults.

    RED670 1MRK002810-AC ABB

     

    Key technical specifications (field-use summary)

    Based on verified 670-series configuration data:

    • Series: ABB Relion 670
    • Device type: Line differential protection relay
    • Part number: 1MRK002810-AC
    • Protection function: 87L line differential protection
    • Communication: Fiber optic / pilot wire inter-substation link
    • Backup protection: Overcurrent, earth fault, distance protection (optional configuration)
    • CT inputs: 1 A / 5 A secondary systems (variant dependent)
    • CT supervision: CT saturation detection and stabilization logic
    • Fault recording: COMTRADE disturbance recording + event logs
    • IEC 61850: Station bus communication supported (system dependent)
    • Operating temperature: industrial substation class (variant dependent, typically wide range)
    • Mounting: 19-inch rack plug-in modular design
    • Supply: DC auxiliary supply (commonly 48–250 V DC range depending hardware)

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