In this paper, laboratory sessions for the learning of protective relaying are presented. The objective is that the students assimilate in a practical fashion, the concepts of protection systems by setting up the relays and applying voltage and current signals to serve to simulate real faults in the electrical networks. Several laboratory sessions are presented as a practical component in an undergraduate course. The sessions involve modern training test equipment and high technology protective devices used in industry nowadays. Synchrophasors technology is also included.