RED670 1MRK002800-AC ABB protection relay in stock

• Brand
  ABB
• Model
  RED670
• Product Name
  Line Differential Protection Relay
• Place of Origin
  Sweden
• Customs HS Code
  85364900
• Part number
  1MRK002800-AC
• Dimensions
  250mm × 180mm × 180mm
• Weight
  2.7 kg
• Operating Temperature
  -35℃ ~ +80℃
• Storage Temperature
  -40℃ ~ +85℃
• Warranty
  12 month
• Product Status
  brand new

ABB RED670 1MRK002800-AC Input & Output, Voltage & Current

Analog Inputs (CT / VT)

Current analog input: Nominal CT secondary 1 A / 5 A, continuous withstand 2×In, dynamic withstand up to 40×In; measurement accuracy ±0.2%.

Voltage analog input: Nominal VT secondary 100 V / 110 V; measurement accuracy ±0.2%.

Optional mA analog module: 4–20 mA, 0–20 mA, ±10 mA for auxiliary transducers.

Binary Inputs (Digital Input)

Rated voltage: 110 V DC / 220 V DC with configurable threshold; opto-isolated status inputs used for breaker position, disconnector status and external interlock signals.

Binary Outputs (Trip / Signal Relay Output)

Contact type: Heavy-duty trip contacts and auxiliary signal contacts.

Rated contact voltage: Max. 250 V AC / 250 V DC.

Continuous carrying current: 5 A; trip breaking capacity of each contact complies with IEC 60255.

Functions: Line differential tripping, backup protection tripping, alarm signalling and remote status indication.

IED Auxiliary Power Supply

Operating supply: 110 V DC / 220 V DC (wide input range 88–250 V DC); 100–240 V AC variant available as an option.

Supported Communication Protocols

IEC 61850 Ed.1 / Ed.2 (MMS, GOOSE, SV IEC61850-9-2), IEC 60870-5-103, Modbus TCP / Modbus RTU, SPA (ABB proprietary substation protocol), LON, DNP3.

Compatible Software

PCM600: ABB core engineering and commissioning tool for Relion 670 series, supporting parameter configuration, disturbance record retrieval, firmware upgrade and configuration upload & download.

SMI (Substation Monitoring Interface).

IED Explorer for diagnostic work.

Hitachi Energy / ABB protection setting calculation software.

Compatible Systems

Substation automation systems compatible with IEC61850, IEC103, DNP3 and Modbus.

ABB System 800xA.

Third-party SCADA / DCS equipped with corresponding protocol drivers.

Fiber communication links for line differential protection (direct fiber or multiplexer for longitudinal differential communication between RED670 IEDs at two terminals of transmission lines).

Relion 670 series bay IED ecosystem.

Interface Summary

2×Gigabit Ethernet ports for IEC61850 communication.

2×RS485 ports for serial protocols.

Front-panel USB port for local commissioning.

Optional fiber port for inter-IED line differential communication.

Application Cases of ABB RED670 1MRK002800-AC

Case 1: 110kV Two-Terminal Overhead Transmission Line Protection (Conventional Single Breaker)

This application applies to 110kV overhead transmission lines interconnecting two regional substations. RED670 1MRK002800-AC devices are deployed at both line terminals, adopting 87L line differential protection as the primary protection, supplemented by distance protection and directional overcurrent backup protection. A direct fiber optical channel is deployed between the two IEDs to realize real-time sampling value synchronization, while IEC 61850 GOOSE protocol is applied for breaker interlock and alarm signal transmission.

The device delivers rapid fault clearance for phase-to-phase and earth faults, with strong anti-interference capability against load swing and inrush current. It supports full disturbance record storage for post-fault troubleshooting and analysis. This solution features high protection selectivity and zero protection dead zone, effectively minimizing the power outage scope induced by line faults.

Case 2: 33kV/66kV Offshore Wind Farm Submarine Export Cable Protection

Long-distance AC submarine cables connecting offshore wind farm platforms and onshore substations generate substantial capacitive charging current, which easily causes malfunction of traditional distance protection. The RED670 IEDs are installed at both ends of the submarine cable, utilizing fiber communication to complete real-time differential current comparison. Equipped with an adaptive line differential algorithm, it automatically compensates cable capacitive current interference.

The system accurately distinguishes internal cable faults from external system faults and completely avoids false tripping triggered by cable charging current. It is highly adaptable to long-distance underground and submarine cables, significantly improving protection sensitivity for cable insulation damage and breakdown faults.

Case 3: 220kV Multi-Terminal Transmission Line Protection (3-Terminal Network, Breaker-and-a-Half Scheme)

Designed for complex 220kV three-terminal transmission power grids with substation breaker-and-a-half bay configuration, this solution deploys three sets of RED670 1MRK002800-AC devices in master-master differential operating mode. The device is configured with 6 groups of CT inputs to match the breaker-and-a-half topological structure.

All three IEDs conduct real-time mutual exchange of current sampling data, accurately calculating differential current values to identify in-zone faults on any line segment. It perfectly solves the protection coordination challenges of complex mesh power grids and realizes reliable full-coverage protection for multi-terminal transmission lines.

Case 4: Digital Substation Bay-Level Integrated Protection and Monitoring

Applied to newly built IEC 61850-standard digital substations and fully compatible with ABB System 800xA substation automation systems. The RED670 device relies on gigabit Ethernet interfaces, adopting MMS protocol for parameter access and operational measurement data uploading, and GOOSE protocol for inter-tripping commands and binary signal interaction. Offline configuration, parameter debugging and device commissioning are completed via PCM600 engineering software.

It integrates multiple functions including merging unit SV signal reception, bay-level comprehensive protection, breaker intelligent control, alarm information upload and fault disturbance recording. This application greatly reduces on-site hard wiring, realizes fully digital bay protection and control, and simplifies daily remote monitoring and equipment maintenance work.

Case 5: Large-Scale Power Plant 110kV Outgoing Feeder Protection

Suitable for 110kV outgoing transmission lines of large thermal and hydropower plants, connecting power plant switchgear and regional public power grids. The RED670 takes line differential protection as the main protection, cooperating with overcurrent protection, earth fault protection and distance backup protection. It adopts SPA and IEC 60870-5-103 protocols to realize stable data communication with the power plant DCS system.

The device can quickly trip and isolate short-circuit faults on outgoing feeders, and reliably block mal-operation during external grid disturbances. It uploads real-time fault and alarm status to the plant control system, effectively preventing cascading faults between the power plant and utility grid, and fully complies with national power grid operation specifications.

FAQ for ABB RED670 1MRK002800-AC

1.What is ABB RED670 1MRK002800-AC?

ABB RED670 1MRK002800-AC is a Relion 670 series Line Differential Protection IED, designed for overhead lines and cable transmission lines. It provides phase-segregated line differential protection, fault location, disturbance recording and bay control functions, widely used in power transmission substations, grid upgrade and power plant protection systems.

2.Is RED670 1MRK002800-AC still in active production by ABB?

RED670 series is a mature legacy protection IED. ABB has stopped new mass production for this specific part number. We supply new surplus stock and fully tested refurbished units for substation maintenance and retrofit projects. Please contact us to check real-time stock availability.

3.What communication protocols does RED670 1MRK002800-AC support?

This IED supports IEC 61850 (including GOOSE, MMS), Modbus, DNP3, HSR and PRP redundancy. It also supports PTP / IRIG-B time synchronization, suitable for digital substation integration.

4.What warranty do you offer for ABB RED670 1MRK002800-AC?

We provide a 12-month warranty starting from shipment date. The warranty covers hardware functional failures under correct installation and normal operating conditions. Physical damage, overvoltage, wrong wiring or firmware modification are excluded from warranty coverage.

5.Can you test the RED670 1MRK002800-AC before delivery?

Yes. All modules will undergo full function testing, protection logic check and communication verification before shipment. We can provide a test report upon request.

6.Can you verify compatibility for my existing substation system?

Yes. Please share your full system topology, firmware version and existing IED configuration. Our technical team will check compatibility and confirm whether this RED670 variant matches your protection scheme before order placement.

GDB021BE
Unitrol 1020
698B275U01
SM810K01
BC810K02
PP886
PBA800
RED615