The objective of this videotape is to demonstrate the various methods that are used to investigate equipment performance during fault conditions. While various types of fault recorders are considered, particular emphasis is placed upon the interpretation of oscillograms. After study of this course and the associated workbook participants should be able to understand the following overall concepts and be able to apply them to their day-to-day work activities. They will also be able to answer related test questions on these subjects: Objectives of fault investigation and analysis, Disturbances, faults, power swings, Gathering of fault data (after the fact), Operational reports, relay targets, Sequence of event recorders (SOER), Oscillograms from digital relays, Features of oscillograph machines: Quick start, Pre-fault, Continuous, Starting sensors: Neutral overcurrent, Zero sequence voltage, Negative sequence voltage, Location of oscillographs on the power system, Selection of data to be monitored, Information available from oscillograms, The need to monitor carrier signals, Coordination of data from all sources for analysis, i.e. relay targets, operational reports, system one-line diagrams, oscillograms and SOERs. Interpretation of data.
If you are taking this course for NERC credit, the following credits will be reported.
NERC CE HOURS: CE HOURS = 4.00 OPS Topics=4.00 Standards=0.00 Simulation=0.00 EO=0.00
- Trainees will be able to explain why it is necessary to conduct a post system disturbance investigation and analysis.
- Trainees will be able to describe common methods for gathering information for a post-disturbance investigation.
- Trainees will be able to describe common tools which are available to help with fault and disturbance analysis.
- Trainees will be able to describe the features of various types of automatic disturbance recording equipment and describe the conventional practice for locating this equipment on the power system.
- Trainees will be able to describe the types of data and its interpretation that should be recorded on oscillograms.
- Trainees will be able to describe major features of oscillograms produced by three common faults and misoperations.
- Trainees will be able to describe major features of oscillograms produced by three common equipment operating events.
SEGMENT A - BUS CONFIGURATIONSEGMENT B - SUBSTATION SWITCHINGSEGMENT C - SUBSTATION EQUIPMENT
End of Course Instructions
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