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ABB RED670 1MRK002810-AB Line Differential Protection Relay

ABB RED670 1MRK002810-AB Line Differential Protection Relay

Product Description

The RED670 (1MRK002810-AB) is part of ABB’s renowned Relion 670 series, engineered for high-performance line differential protection in transmission and sub-transmission networks.

This Intelligent Electronic Device (IED) delivers comprehensive protection, monitoring, and control...

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Availability: Low stock: 10 left

SKU: RED670 1MRKO02810-AB
Vendor: ABB
Category: Line Differential Protection Relay
Related Series:

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  • Genuine Guarantee: We supply only 100% original, brand-new, and factory-sealed industrial automation parts.
  • Full Coverage: Every component is backed by a 12-month comprehensive warranty from the date of purchase.
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Product Description

The RED670 (1MRK002810-AB) is part of ABB’s renowned Relion 670 series, engineered for high-performance line differential protection in transmission and sub-transmission networks.

This Intelligent Electronic Device (IED) delivers comprehensive protection, monitoring, and control for overhead lines and underground cable circuits. It is capable of supporting complex system configurations, including multi-terminal line applications with up to five terminals.

At its core, the RED670 utilizes phase-segregated current differential protection, providing exceptional sensitivity to high-resistance internal faults while ensuring complete stability during external through-fault conditions.

Its flexible software and hardware architecture enables seamless integration into IEC 61850-based substation automation systems, supporting high-speed peer-to-peer communication for advanced grid protection schemes.

Technical Specifications

Specification Description
Model Series Relion RED670 (1MRK002810-AB)
Protection Type Phase-segregated Line Differential
Auxiliary Power Supply 48–250 V DC/AC (Supports 110 V / 220 V DC nominal)
System Frequency Adaptive 50/60 Hz
Phase Selection Built-in secure phase selection for single-pole and three-pole tripping
Operating Temperature -40 °C to +70 °C
Dimensions (H × W × D) 135 mm × 186 mm × 119 mm
Weight 1.2 kg

Application Scenarios

The RED670 is primarily deployed in:

  • High-voltage (HV) transmission lines

  • Sub-transmission networks

  • Underground cable protection

  • Transformer-feeder combinations

  • Multi-terminal line systems

It is the preferred solution in installations where fast fault clearance, high selectivity, and grid stability are critical operational requirements.

Implementation FAQ

How does phase-segregated protection improve reliability?
By monitoring each phase independently, the RED670 precisely identifies the faulted phase. This enables single-pole tripping and autoreclosing, reducing unnecessary three-phase outages and improving overall system availability.

Is this relay compatible with fiber optic communication?
Yes. Line differential protection requires a high-speed communication link between terminals. The RED670 supports multiple fiber-optic communication interfaces to exchange real-time current vector data between remote relays.