Description
Product Overview
ABB 1MRK002311-AAR02 is an optical long-range line data communication module (LR LDCM) designed for ABB Relion® 670 series protection and control systems, particularly associated with ABB RED670 line differential protection applications. It provides a high-speed, reliable optical communication interface between geographically separated protection devices, enabling secure exchange of protection signals and synchronized measurement data over long-distance fiber optic links. The 1MRK002311-AAR02 is an important communication component in modern power grid protection systems where fast and dependable data transfer is essential for selective fault clearing and grid stability.
ABB 1MRK002311-AAR02 belongs to the ABB Relion® 670 protection platform accessory family and is primarily used as a long-range communication interface for line differential protection schemes. The module uses single-mode optical fiber technology, typically operating at a 1550 nm wavelength, to provide excellent immunity against electromagnetic interference and support reliable communication across substations. In ABB RED670 applications, 1MRK002311-AAR02 enables current differential protection data exchange between line terminals, allowing protection relays to make fast and accurate trip decisions.
ABB 1MRK002311-AAR02 provides a robust communication solution for high-voltage transmission networks, industrial substations, and critical electrical infrastructure. By combining optical transmission technology with ABB’s advanced protection platform, 1MRK002311-AAR02 improves system availability, enhances protection coordination, and supports reliable operation in harsh electrical environments. It is widely applied in power utilities, renewable energy transmission systems, and industrial power networks requiring high-speed protective communication.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 1MRK002311-AAR02 |
| Manufacturer | ABB |
| Product Type | Optical Long Range Line Data Communication Module (LR LDCM) |
| Product Family | ABB Relion® 670 Series |
| Main Application | Line differential protection communication |
| Compatible Device | ABB RED670 protection relay |
| Communication Medium | Single-mode optical fiber |
| Optical Wavelength | 1550 nm |
| Transmission Distance | Long-distance optical communication (application dependent) |
| Communication Interface | Fiber optic line interface |
| Data Transmission | Synchronous protection data communication |
| Power Supply | Supplied by host relay system / module interface |
| Installation Type | Relay rack or protection panel mounting |
| Operating Environment | High-voltage substation environment |
| EMC Performance | High immunity to electromagnetic interference |
| Protection Application | IEC 61850 / differential protection systems (configuration dependent) |
1MRK002311-AAR02
Main Features and Advantages
ABB 1MRK002311-AAR02 provides a dedicated communication solution for high-speed electrical protection applications. Unlike general industrial communication modules, 1MRK002311-AAR02 is specifically optimized for protection relay communication, where transmission delay, reliability, and synchronization accuracy are critical factors.
Long-distance optical communication capability is one of the most important advantages of ABB 1MRK002311-AAR02. The module uses single-mode fiber technology to achieve stable communication over extended distances between substations. Fiber optic transmission eliminates many limitations associated with copper communication systems, including electromagnetic interference, ground potential differences, and signal attenuation.
ABB 1MRK002311-AAR02 is designed to support line differential protection functions in ABB RED670 systems. In a differential protection scheme, protection relays installed at different ends of a transmission line must exchange accurate current information in real time. The communication performance of 1MRK002311-AAR02 directly contributes to fast fault detection and selective tripping, helping minimize equipment damage and improve grid reliability.
The optical interface of 1MRK002311-AAR02 provides excellent electrical isolation between connected substations. This is particularly valuable in high-voltage environments where strong electromagnetic fields and transient disturbances may affect conventional communication methods.
Another advantage of ABB 1MRK002311-AAR02 is its seamless integration with ABB Relion® protection platforms. The module is designed to work with existing ABB engineering tools and relay configurations, simplifying commissioning, maintenance, and lifecycle management.
ABB 1MRK002311-AAR02 also supports demanding utility applications requiring continuous availability. Its industrial-grade design allows operation in substations exposed to temperature variations, electrical noise, and harsh environmental conditions.
For modernization and expansion projects, 1MRK002311-AAR02 provides a practical solution for upgrading communication capability while maintaining compatibility with ABB protection infrastructure. It helps utilities improve network protection performance without replacing complete protection systems.
With high-speed optical communication, strong EMC immunity, reliable protection data exchange, and ABB Relion® platform compatibility, 1MRK002311-AAR02 is an essential component for modern transmission line protection systems.
Applications
ABB 1MRK002311-AAR02 is mainly used in power system protection applications requiring secure and fast communication between protection relays. Its primary application is in ABB RED670 line differential protection systems installed at opposite ends of high-voltage transmission lines.
In electrical substations, ABB 1MRK002311-AAR02 enables communication between protection devices located in separate switchyards. The module transfers protection-related information through optical fiber links, allowing relays to compare current measurements and identify internal line faults with high accuracy.
Power utilities use 1MRK002311-AAR02 in transmission networks where rapid fault isolation is essential for maintaining grid stability. The module supports protection schemes for overhead lines, underground cables, and critical power transmission corridors.
Industrial power systems, including large manufacturing plants, mining facilities, and energy-intensive industries, can also benefit from ABB 1MRK002311-AAR02 when high-reliability protection communication is required.
Renewable energy integration projects, such as wind farms and solar power plants connected to high-voltage grids, may use ABB protection systems equipped with 1MRK002311-AAR02 to ensure reliable fault protection and grid compliance.
Typical application areas include:
- High-voltage transmission substations
- Line differential protection systems
- ABB RED670 protection applications
- Power utility networks
- Industrial substations
- Renewable energy grid connections
- Underground cable protection
- Critical electrical infrastructure
- Smart grid protection systems
Related Products
ABB RED670 1MRK002311-AAR02 — Complete line differential protection relay configuration using the LR LDCM communication module.
ABB 1MRK002266-AAR00 — Related optical communication module variant used in ABB Relion protection systems.
ABB 1MRK002311-AAR01 — Related LR LDCM communication module variant with different configuration options.
ABB RED670 — Relion® 670 series numerical line differential protection relay platform compatible with 1MRK002311-AAR02.
ABB REL670 — Transmission line protection relay for high-voltage network applications.
ABB REC670 — Bay control and protection IED in the Relion® 670 family.
ABB RET670 — Transformer protection relay in the same Relion® 670 platform.
ABB REF670 — Feeder protection and control relay compatible with ABB protection communication infrastructure.
