406 43rd Street West, Bradenton FL 34209 USA

Course Overview

In this Learning-Doc, the learner should be able describe use of the one-line diagram, functionality of the protective relays and how the generator may be at risk.  Discussions include discussions of the information contained on a one-line diagram, use of the R-X diagram, and shutdown considerations.  Abnormal conditions described include stator over-current, over voltage, a stator ground, phase-to-phase fault protection, volts-per-hertz protection, field over-excitation, field ground, loss of excitation, negative phase sequence currents, loss of synchronism, abnormal frequency operation, inadvertent energization, reverse power, and use of a distance relay.  Each abnormal condition description includes the risk to the generator, instrumentation used, description of the protective relay function, and actions to be taken.

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