ABB RET670 1MRK002816-AB Bay Control IED

Electronic Device

The RET670 (1MRK002816-AB) is a high-performance Bay Control Intelligent Electronic Device (IED) belonging to the ABB Relion 670 series. Specifically engineered for the protection, monitoring, and control of power transformers and switchyard bays, this unit is a mechanical necessity for modern utility and industrial substations. 

Technical Specifications

• Manufacturer: ABB

• Model Designation: RET670

• Part Number: 1MRK002816-AB

• Product Series: Relion 670

• Device Type: Bay Control Intelligent Electronic Device (IED)

• Communication Standard: IEC 61850 Edition 1 and 2

• Operating Temperature: -25 deg C to +55 deg C (-13 deg F to +131 deg F)

• I/O Capacity: High-density configuration for multi-bay management

• Human-Machine Interface (HMI): Large graphical display for local control

• Voltage Control: Advanced automatic voltage regulation (AVR)

• Protection Standards: IEC and IEEE compliant

• Mounting: Rack or panel mounting options available

Key Functional Characteristics

Advanced Voltage Regulation and Control

The RET670 (1MRK002816-AB) is equipped with sophisticated algorithms for automatic voltage control of power transformers. It manages tap-changer operations to maintain optimal voltage levels, even under fluctuating load conditions. This intelligent control minimizes manual intervention and extends the lifespan of the transformer by preventing excessive hunting of the tap-changer mechanism.

High-Density I/O and Multi-Bay Management

Designed for flexibility, the device supports an extensive number of binary and analog inputs and outputs. This allows a single 1MRK002816-AB unit to handle the control and measurement requirements of multiple switchgear bays simultaneously. By consolidating these functions, substation engineers can reduce the number of discrete devices required, lowering the overall complexity and maintenance burden of the control system.

Seamless System Integration

The RET670 utilizes the IEC 61850 protocol to facilitate high-speed horizontal communication (GOOSE) and vertical integration into SCADA and Substation Automation Systems (SAS). This standardized approach allows the IED to share real-time measurements and diagnostic data with other devices in the network, enabling coordinated protection and control strategies across the entire grid.