The ABB REC670 (ordering code 1MRK004814-AC) is a high-performance Bay Controller within the Relion 670 series, specifically engineered for the control and monitoring of transmission and sub-transmission substations. This Intelligent Electronic Device (IED) provides advanced interlocking, synchronized switching, and comprehensive bay-level automation, ensuring maximum operational safety and system availability.

 

Technical Functionality

The REC670 acts as a central control hub for power system bays, handling complex logic for circuit breakers, disconnectors, and earthing switches. It supports seamless integration into substation automation systems via IEC 61850-8-1 (Station Bus) and IEC 61850-9-2 (Process Bus), enabling digitized protection and control architectures with high-speed peer-to-peer GOOSE messaging.

 

Key Specifications

 

Operational Precautions

• Logic Validation: Use the ACT (Application Configuration Tool) within PCM600 to simulate and verify interlocking logic before deploying to a live bay.
• Optical Fiber Care: For process bus applications, ensure all fiber optic connectors are cleaned with specialized tools to prevent signal attenuation or loss of sampled values.
• Redundancy Settings: When using PRP (Parallel Redundancy Protocol), verify that both LAN ports are correctly mapped to prevent communication “storms” or duplicated telegram errors.

 

Common Questions Q&A

Q: Can the REC670 manage multiple breakers in a single bay? A: Yes, the modular hardware allows for extensive I/O configurations, enabling the control of several switching primary devices within a single bay unit.

Q: Does it support synchrocheck functionality? A: Absolutely. The REC670 includes built-in voltage and frequency matching logic to ensure safe closing of breakers between two live systems.

Recommended Similar Models

1. REF670: The feeder protection equivalent for transmission networks.
2. RED670: A dedicated line differential protection IED for the same series.
3. RET670: Specialized transformer protection and control within the 670 family.
4. REC650: A more compact bay controller for standard sub-transmission applications.
5. REX640: The next-generation modular protection relay for all-in-one substation tasks.

Technical documentation and availability for the ABB REC670 1MRK004814-AC can be found in our current power automation inventory.