The REC670 (part number 1MRK004814-AC) is an advanced Intelligent Electronic Device (IED) from ABB’s Relion® 670 series. It is specifically designed for the control and monitoring of primary equipment in high-voltage and extra-high-voltage transmission and sub-transmission substations. By integrating comprehensive bay control functionality with protection and communication features, the REC670 ensures high reliability and operational efficiency for power grids.
Product Specifications
| Feature | Details |
| Model Number | REC670 |
| Part Number | 1MRK004814-AC |
| Device Type | Bay Control IED |
| System Series | Relion® 670 |
| Functionality | Bay control, monitoring, and protection |
| Connectivity | IEC 61850-8-1, Modbus, DNP3, IEC 60870-5-103 |
| Weight | Approximately 5.0 kg – 8.0 kg |
| Country of Origin | Sweden |
Application Fields
The REC670 is used in critical power infrastructure to manage substation bays. Its key application areas include:
- Bay Control: Managing circuit breakers, disconnectors, and earthing switches.
- Substation Automation: Functioning as a central node in an IEC 61850-based digital substation architecture.
- Condition Monitoring: Providing integrated supervision of primary equipment (e.g., circuit breaker wear and gas pressure).
- Grid Stability: Facilitating complex interlocking and control logic to maintain safe operation under varied grid conditions.
Product Usage Instructions
Installation must be performed by authorized electrical utility personnel following the ABB technical documentation.
- Mounting: The unit is designed for 19-inch rack mounting or panel flush mounting. Ensure the surrounding environment meets the specified IP rating for the front panel.
- Wiring: Use the provided terminal diagrams specific to your IED order code (1MRK004814-AC). Ensure all CT/PT and control circuits are correctly terminated and securely tightened.
- Configuration: Use ABB’s PCM600 tool to configure the application logic, binary I/O mapping, and communication protocols.
- Commissioning: Verify the functionality of control commands (Open/Close) and ensure that all bay interlocking logic is properly tested before putting the bay into service.
- Diagnostics: The front-panel LCD and HMI buttons allow for local status monitoring, while the Ethernet port facilitates remote access for advanced diagnostics.
Frequently Asked Questions
Q: What is the significance of the 1MRK004814-AC part number?
A: This code defines the specific hardware and software configuration of your REC670, including its I/O density, communication hardware, and pre-loaded protection/control functions. Always verify this part number against your system design document.
Q: Does the REC670 support digital substation communication?
A: Yes, it is fully compliant with the IEC 61850 standard, making it ideal for modern digital substations that utilize GOOSE and Sampled Measured Values (SMV) communication protocols.
Q: How do I manage the bay interlocks?
A: Interlocking logic is configured within the device using the PCM600 application configuration tool. You can define conditional logic to prevent unsafe switching operations (e.g., opening a disconnector while a circuit breaker is closed).
Q: Is this device suitable for retrofitting older substations?
A: Absolutely. The REC670 is commonly used to upgrade older control systems, replacing legacy RTUs and control switches while providing modern features like digital monitoring and advanced communication.
