The objective of this tape is to present concepts which are vital tools in the interpretation of system operating conditions. After study of this course and the associated workbook, the participant should be able to understand the following overall concepts and apply them to his/her day-to-day work activities. He/she will also be able to answer test questions on the following subjects: Function of current and voltage transformers, Effect of burden and saturation, CT performance ratings, VT connections, The coupling capacitor VT, Polarity, polarity test, Three phase circuit diagrams, Directional sensing for ground faults, Phasor diagrams, construction and interpretation, Phase rotation - sequence, Per unit calculations, Base voltage and base MVA, OHMIC impedance and per unit impedance, MVA fault capacity.
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=4.00
- Trainees will be able to describe the roles that CTs and VTs play in monitoring system conditions and providing reliable input the various protection relays.
- Trainees will be able to describe the vital characteristics of CTs and VTs, paricularly as they relate to performance and accuracy.
- Trainees will be able to describe the conventions for polarity; that is the direction of current flow in instrument transformers.
- Trainees will be able to describe how the polarity of CTs and VTs can be determined, including both the interpretation of markings on the transformer terminals and some simple tests that can be made to determine polarity.
- Trainees will be able to describe the conventions applied to phasor diagrams, including phase rotation and phase sequence.
- Trainees will be able to explain how a phasor diagram can be constructed based on the information presented in a circuit connection diagram.
- Trainees will be able to describe the basics of the per unit impedance system of calculation, which is useful in the analysis of fault conditions.
- Trainees will be able to relate per unit impedances to ohmic values of impedance for basic equipment configurations.
End of Course Instructions
Congratulations on completing the course! Your credits earned on completion of this program will be reported to RCEP.net within 30 days of completion. Once we report your completion at RCEP.net, you will receive a certificate of completion provided by RCEP on the email address you have provided at the time of enrollment. Please keep the certificate for your record. You may be required to submit this certificate to the state to record your PDH or present it in case if you are audited. If you have any questions or concerns please contact customer service at http://www.360trainingsupport.com
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