ABB REC670 1MRK002814-AC

2. Function Features

• Protection Algorithms: It integrates multiple algorithms, including two differential principles, suitable for power systems with low – impedance grounding. It can reliably detect various internal grounding faults.
• Fault Detection and Elimination: It has the ability to quickly detect and correctly cut off various developing or converting faults. By monitoring and controlling the intervals between different devices (such as circuit breakers and disconnectors), it can prevent power failures and ensure the stable operation of the power system.
• Complete Busbar Protection: Besides the differential protection function, it has a flexible dynamic zone auto – selection built – in. This allows the device to dynamically connect CTs to different busbar protection zones, and simultaneously achieve the selectivity of busbar protection and circuit – breaker failure tripping, as well as the status monitoring of disconnectors and circuit breakers.

3. Application Scenarios

It is mainly used for monitoring and controlling the intervals between power equipment in power systems. It serves various power systems and industrial automation fields, especially those with series compensation or high – voltage direct – current transmission (HVDC) power systems.

4. Supported Industrial Protocols

It supports communication protocols like Modbus and IEC 61850, enabling seamless connection with various power devices and efficient data transmission.

5. Expandability

Due to its modular design, the ABB REC670 1MRK002814 – AC has good expandability. New modules can be added according to different application requirements, such as additional input/output modules for connecting more devices, or modules for enhanced communication functions to adapt to a more complex power system network. This modular structure makes it easier to upgrade and expand the device’s capabilities to meet the changing needs of power systems.

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