SPAA 348 C Feeder Protection Relay User Manual

This document is a user manual and technical description for the SPAA 348 C feeder protection relay, which provides directional overcurrent, short-circuit, and earth-fault protection for distribution substations and meshed networks. It details features such as automatic reclosing, remote control, configurable output relays, self-supervision, and serial communication, along with specifications, connection diagrams, and application examples.