ABB RED670 1MRK004810-KG Protection IED

Technical Overview

The ABB RED670 (1MRK004810-KG), designated as Version 1.1 (RED670 A32), is an advanced Intelligent Electronic Device (IED) specifically engineered for the high-speed protection of overhead lines and cables. As a premier component of the Relion® 670 series, this module excels in phase-segregated line differential protection.

Detailed Technical Specifications

The RED670 1MRK004810-KG is defined by the following industrial-grade benchmarks:

• Primary Application: Phase-segregated line differential protection for HV and EHV lines.

• Control Configuration: Optimized for Single Breaker arrangements.

• Tripping Logic: Supports 1-Phase and 3-Phase tripping for selective fault clearing.

• Product Version: Ver. 1.1 (A32 configuration).

• Communication Stack: Native support for IEC 61850-8-1, GOOSE messaging, and SCADA protocols.

• Measurement Accuracy: High-fidelity monitoring of current and voltage vectors with precise time-synchronization.

• Protection Functions: High-speed differential protection, distance backup, and integrated bay control logic.

• Minimum Order Quantity: 1 piece.

• Product ID: 1MRK004810-KG.

Advanced Selectivity and System Stability

The RED670 A32 variant is a critical asset for transmission grids where continuity of service is paramount. The 1-Phase Tripping capability allows the relay to isolate only the faulted phase during a single-line-to-ground fault, significantly reducing the impact on transient stability and preventing total circuit outages. By comparing current samples at microsecond intervals between the local and remote ends of the line, the 1MRK004810-KG provides instantaneous protection with zero-latency hardware execution. Its robust architecture is specifically hardened against the high electromagnetic interference typical of extra-high-voltage substation environments.