Apply distributed protection for large busbars in IEC 61850-based systems with the enhanced SEL-487B-2 Bus Differential and Breaker Failure Relay—now IEC 61869-9-compliant. IEC 61869-9 enables the users to tailor Sampled Values (SV) packets to their application and optimize bandwidth usage. Advanced monitoring and differential protection in the SEL-487B-2, together with SEL operational technology (OT) software-defined networking (SDN), improve system reliability, network security, and situational awareness.
And like all SEL relays, the SEL-487B-2 exceeds industry standards for operating temperature range and resistance to humidity, corrosion, shock, electric stress, and electromagnetic interference.
