SEL-751A comprehensive feeder protection relay combining protection, control, automation, and metering in single device. Advanced protection functions include overcurrent, directional, differential, breaker failure, and arc flash detection. Synchrophasor measurement capability enables wide-area monitoring and control. Front-panel HMI with color touchscreen simplifies commissioning and troubleshooting. Cybersecurity features include role-based access control and encrypted communications. IEC 61850 and DNP3 protocols supported. Five-year warranty standard.
