ABB RED670 1MRK002810-AC Line Differential Protection Relay

The ABB RED670 1MRK002810-AC Line Differential Protection Relay is a high-performance solution designed for fast and selective protection of transmission and sub-transmission lines. As part of the ABB Relion® 670 series, the RED670 provides advanced current differential protection, distance protection, and backup functions, making it ideal for critical power transmission networks. It supports single and parallel line configurations with or without transformers and is fully compliant with IEC 61850 for digital substation integration. With high-speed communication and advanced fault detection algorithms, the RED670 ensures maximum system stability and reliability.

Product Specifications

Product Applications

• Transmission Line Protection: Provides high-speed current differential protection for single and parallel lines.

• Distance Backup Protection: Integrated distance protection offers an additional layer of system security.

• Sub-Transmission Systems: Suitable for medium-voltage and sub-transmission networks requiring fast fault isolation.

• Industrial Power Networks: Protects critical feeder and line segments in heavy industries and utilities.

• Digital Substations: Fully supports IEC 61850 GOOSE messaging for advanced communication and automation.

• Breaker Failure Protection: Ensures secure isolation of failed breakers to maintain system stability.

Product Advantages

• Ultra-Fast Fault Detection: Provides rapid fault clearing to minimize damage and system disturbances.

• Comprehensive Protection: Combines line differential, distance, and backup protection functions in one device.

• IEC 61850 Integration: Enables seamless operation in digital substations with advanced communication support.

• High Reliability: Robust hardware and software design for critical transmission and distribution applications.

• Flexible Application: Suitable for various line configurations, including those with transformers and series compensation.

• Advanced Diagnostics: Built-in self-monitoring and event recording for efficient maintenance and troubleshooting.

• Scalable Design: Can be tailored for small, medium, and large-scale power systems.

FAQ

1. What type of protection does the RED670 primarily provide?

   The RED670 offers high-speed line differential protection as its primary function, ensuring precise fault detection for transmission lines.

2. Can the relay be used for parallel line configurations?

   Yes, the RED670 supports both single and parallel line protection, making it suitable for complex transmission networks.

3. Does the RED670 support distance protection as a backup function?

   Absolutely. It integrates distance protection to provide an additional layer of backup security for line faults.

4. What type of current transformer inputs are supported?

   The relay accepts standard 1 A and 5 A CT inputs for flexible application in various network configurations.

5. Is the RED670 compatible with IEC 61850-based systems?

   Yes, the device is fully IEC 61850 compliant, supporting GOOSE messaging and sampled values for digital substation environments.

6. How fast is the fault detection and clearing process?

   The RED670 is designed for ultra-fast fault detection and clearing, minimizing system disturbances and protecting equipment integrity.

7. Can the RED670 handle lines with series compensation?

   Yes, it includes advanced algorithms to provide stable protection for lines equipped with series compensation.

8. What communication protocols are available for integration?

   The device supports IEC 61850, Modbus, DNP3, and IEC 60870-5-103, ensuring compatibility with a range of SCADA and automation systems.

9. Is breaker failure protection included in the RED670?

   Yes, the relay integrates breaker failure protection logic to ensure safe isolation of failed breakers during fault events.

10. Does the RED670 provide event recording and disturbance analysis?

    Yes, the relay offers extensive event recording, disturbance analysis, and oscillography to aid in post-fault diagnostics and system studies.