Print this page Electrical Design - Coordinated Power System Protection
Bijan Ghayour, P.E.
Course Outline
This online course provides an introduction to the selection and coordination of the protective devices for power systems protection. The course materials are based entirely on the Technical Manual of Department of the Army: TM 5-811-14: Electrical Design - Coordinated Power System Protection.
Learning Objective
The purpose of this course is to provide an understanding to the overall objective of protective relaying system:
- To prevent damage to equipment and circuits.
- To prevent hazards to the public and utility personnel.
- To maintain a high level of service by preventing power interruptions when possible, and minimizing their effects when they do occur.
At the conclusion of this course, the student will have a better understanding of the:
- General applications, philosophies, and purposes for the design, calibration, setting, and testing of protective devices.
- Types of faults and nature of their causes.
- Available tools that the designer may use for fault analysis.
At the conclusion
of this course, the student will be able to determine the need for a protective
relaying system both in regards to specific equipment areas and for the overall
distribution system.
The course includes:
- Presentation of a basic method for calculating the magnitude of fault currents for different types of disturbances.
- Recommendations on the selection of the protective devices for different systems and equipment.
- Establishing guidelines on the settings of the protective devices.
The course contains specific examples, with practical emphasis on coordination of protective relays and devices to achieve the desired balance between protection and continuity of service. The course also contains a brief section on the use of computers for analyzing complex systems.
You are required to study Chapters 1 through 5 of Technical Manual TM 5-811-14 of Departments of the Army USA.
Electrical Design - Coordinated Power System Protection
Cover
Table of Contents
Chapter 1- General
Requirements
Chapter 2- Electrical Power System Overcurrents
Chapter 3- Overcurrent Protective Devices
Chapter 4- Protective Device Coordination
Chapter 5- Electrical System Protection Techniques
Appendix A- References
Appendix B- Typical Protective Device Settings
Appendix C- Typical Time-Current Characteristic Curves
Appendix D- Typical Device and Equipment Ratings
Appendix E- Partial Relay Device Numbers List
Appendix F- Representative Protective Device Operating Times
Appendix G- Coordination Examples
Appendix H- Computer Software Applications
Bibliography
Glossary
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Quiz
Once you finish studying the above course content, you need to take a quiz to obtain the PDH credits.
DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDHonline.com or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered professional engineer. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.
