ABB REB670-1MRK002820-AC is a bus differential protection device specifically designed for power systems. It has a high degree of reliability and stability, which can quickly and accurately detect faults in power systems and quickly cut off faulty lines to protect power equipment and the entire power system from damage. This device is not only suitable for all sizes and types of power systems, but also has a simple and easy-to-use configuration interface, which allows users to quickly configure according to actual needs, improving the operability of the equipment.

The REB670-1MRK002820-AC device integrates a variety of algorithms, including two differential principles: a standard low-impedance differential and a differential with sensitive action characteristics, the latter of which is particularly suitable for low-impedance grounded power systems. In addition, REB670 also has a variety of protection functions, such as overcurrent protection, quick break protection, automatic reclosing function, etc., to ensure the stable operation of the power system and power supply reliability.

REB670

Another distinguishing feature of the REB670 device is its ability to respond quickly to faults in the area, operating in a very short period of time, typically 12ms, and ensuring extreme stability even when the CT is heavily saturated. In addition, REB670 has lower CT requirements and can share a set of CT with other protective devices, effectively reducing costs.

As a global leader in electrical and automation technology, ABB is widely recognized for its superior product performance, reliability and innovation. REB670-1MRK002820-AC as one of ABB’s important products, through its efficient and reliable relay protection function, help enterprises to improve the efficiency of power system operation, reduce energy consumption, and ensure the safe and stable operation of power equipment.

Overall, the REB670-1MRK002820-AC device is ABB’s innovation in the field of power system protection, which not only provides comprehensive protection functions, but also meets the needs of modern power systems for high reliability and fast response through its flexibility and ease of use.