ABB 1MRK000284-AB Overcurrent Directional Time Relay Module for Relion 650/670 Series

Product Overview

The ABB 1MRK000284-AB is a high-performance digital binary input module and protection control unit engineered as a core hardware platform within the ABB Relion® 650 and 670 series protection relay families . This versatile module serves as the critical interface between the protection system and field devices, monitoring digital signals from switches, relay contacts, and pushbuttons while executing advanced protection functions for high-voltage power systems . The ABB 1MRK000284-AB is specifically designed for demanding applications in transmission line protection, transformer protection, and busbar protection, operating within voltage levels from 66 kV to 500 kV .

Functioning as a numerical protection and control unit, the ABB 1MRK000284-AB delivers multiple protection functionalities including directional and non-directional overcurrent protection, line differential protection, distance protection, and breaker failure protection . The module is built on the Relion 650 platform architecture, which represents ABB’s (now Hitachi Energy) state-of-the-art technology in smart grid protection . The ABB 1MRK000284-AB supports modern IEC 61850 Edition 2 communication standards with GOOSE, SV, and MMS protocols, enabling seamless integration into digital substations with “three-layer two-network” architecture . With dual 100 Mbps Ethernet interfaces supporting PRP (Parallel Redundancy Protocol) and HSR (High-availability Seamless Redundancy), the ABB 1MRK000284-AB provides the network resilience essential for critical infrastructure protection applications.

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Description

Technical Specifications

Parameter Name	Value
Product Model	ABB 1MRK000284-AB
Manufacturer	ABB (Hitachi Energy)
Product Type	Binary Input Module / Numerical Protection Unit
Series/Platform	Relion® 650/670 Series
Input Type	6-channel Binary Input Module
Protection Functions	Directional/Non-directional OC (50/51), Differential, Distance, Breaker Failure (50BF)
Communication Protocols	IEC 61850 Ed 2 (GOOSE/SV/MMS), IEC 60870-5-103, Modbus TCP/RTU
Network Interfaces	2x 100 Mbps Ethernet (LC fiber or RJ45)
Redundancy Support	PRP, HSR
Time Synchronization	IRIG-B, SNTP, PTP (IEEE 1588)
Response Time	<50 ms
Operating Temperature	-25°C to +55°C
Protection Class	IP20
Configuration Tool	ABB PCM600 / PCM100
Applicable Voltage	66 kV – 500 kV
EMC Compliance	IEC 60255-26 Level IV

Main Features and Advantages

The ABB 1MRK000284-AB stands as a pinnacle of digital protection technology within the Relion series, offering an exceptional combination of advanced protection capabilities, high-speed communication, and robust design.

Advanced Protection Functionality: The ABB 1MRK000284-AB delivers comprehensive protection schemes including line differential protection, multi-zone distance protection with quadrilateral, Mho, and Ohm characteristics, and directional/non-directional overcurrent protection with adjustable time delays . The module’s high-speed fault detection, with response times under 50 milliseconds, enables rapid isolation of faulted sections, preventing equipment damage and system instability . The ABB 1MRK000284-AB also supports automatic reclosing and COMTRADE-format fault recording, providing engineers with critical data for post-fault analysis .

High-Speed Communication and Network Redundancy: The ABB 1MRK000284-AB is designed for modern digital substations, featuring dual 100 Mbps Ethernet interfaces that support the full suite of IEC 61850 protocols including GOOSE for fast peer-to-peer communication, SV for sampled values, and MMS for supervisory control . The module’s PRP and HSR redundancy protocols ensure zero-switchover-time network resilience, making the ABB 1MRK000284-AB ideal for critical applications where communication continuity is paramount .

Precision Time Synchronization: Accurate time-stamping is essential for sequence-of-events recording and fault location. The ABB 1MRK000284-AB supports IRIG-B (both DC and AC), SNTP, and PTP (IEEE 1588) time synchronization methods, ensuring that all events are logged with microsecond precision across the entire substation .

Robust Industrial Design and Reliability: Built to withstand harsh conditions, the ABB 1MRK000284-AB operates reliably across a wide temperature range from -25°C to +55°C and meets IEC 60255-26 Level IV EMC requirements . Its IP20 protection class makes it suitable for installation in standard control cabinets within power plants and substations . The module’s high-grade materials and corrosion-resistant components ensure long-term operational reliability even in demanding environments .

Comprehensive Diagnostic Capabilities: The ABB 1MRK000284-AB features built-in self-diagnostic functions that continuously monitor module status and detect anomalies, enabling proactive maintenance and reducing unplanned downtime . Status indicators and event logs provide immediate visual and logged diagnostic information, significantly simplifying troubleshooting and reducing mean time to repair.