REB670 - Busbar protection

The REB670 IED (Intelligent Electronic Device) is designed for the protection and monitoring of busbars, T-connections and meshed corners from medium to extra high voltage levels in up to six zones. Due to its extensive I/O capability, REB670 protects single, double and triple busbar with or without transfer bus, double circuit breaker or one-and-half circuit breaker arrangements.

It provides selective, reliable and fast fault clearance for all types of internal phase-to-phase and phase-to-earth faults in solidly earthed or low-impedance earthed power systems. It can also handle all internal multi-phase faults in isolated or high-impedance earthed power systems.

Busbar protection REB670 IED belong to the Relion® protection and control product family. The Relion product family offers the widest range of products for the protection, control, measurement, and supervision of power systems. To ensure interoperable and future-proof solutions, Relion products have been designed to implement the core values of the IEC 61850 standard. With Hitachi ABB Power Grids leading-edge technology, global application knowledge and experienced support network, you can be completely confident that your system performs reliably – in any situation.