REQ650 ABB Breaker Protection Relay for Substations

Description

The ABB REQ650 is a dedicated breaker protection relay that ensures fast and reliable backup tripping in case of breaker failure. It is engineered for high-voltage substations and industrial power systems where selective fault isolation is critical. Moreover, the REQ650 supports re-tripping of its own breaker and tripping of adjacent breakers to maintain system stability. Its ready-made configuration and reduced parameter settings simplify commissioning and reduce engineering time. In addition, the device features dynamic LEDs, graphical display, and remote access capabilities for enhanced usability and diagnostics.