Class 3 of 8: Line Current Differential and Advanced Line Protection Subtleties. This self-paced class covers line current differential principles, the alpha plane, channel timing and asymmetry, charging current, tapped and series-compensated lines, and other line protection subtleties, plus a field walkthrough and a case study. It has about 45 minutes of lesson content plus video activities and a 30-question quiz. It is part of the SubstationU.com Protective Relaying Series, Expert Protective Relaying (Level 4 course). Continuing education credit: 0 (none awarded yet).
Read the lesson book and complete the video activities, then pass the 30-question quiz with 80% (24 of 30) or better; you can retake the quiz as many times as you need until you pass.
Class 3 of 8 in the Level 4 series, Expert Protective Relaying (PR-401 to PR-408). Recommended order: PR-401 through PR-409; classes may be taken in any order. Level 3 is recommended preparation.