The ABB 1MRK002239-BB is a high-performance Power Supply Module engineered for the Relion 670 series of protection and control IEDs. It provides stabilized DC power from station batteries, featuring high galvanic isolation and robust surge protection to ensure the continuous operation of critical grid protection systems.
The ABB 1MRK002239-BB functions as a high-integrity power supply unit specifically designed for the Relion 670 and 650 series of Protection and Control Intelligent Electronic Devices (IEDs). This module serves as the primary energy source for the internal processing architecture and communication ports of the relay. Because power system protection requires absolute reliability, the 1MRK002239-BB incorporates advanced surge suppression and broad input range capabilities to withstand the harsh electrical conditions found in high-voltage substations.
Furthermore, this module features a robust hardware design that prioritizes thermal management and low-noise DC output. It effectively converts station battery voltage into the stabilized levels necessary for precision microprocessor operation and I/O triggering. Since it integrates directly into the modular chassis of ABB’s grid automation equipment, the 1MRK002239-BB ensures that critical protection functions—such as distance protection, transformer monitoring, or busbar differential logic—remain operational even during localized electrical disturbances.
Power utility engineers and substation technicians utilize the 1MRK002239-BB within their primary protection infrastructure. Specifically, the module supports the following applications:
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