The course begins with a discussion of sectionalizing philosophy including the types of faults that frequently occur, zones of protection, and some of the issues to consider when designing a protective scheme. Fault current calculations are briefly covered and then each of the common protective devices used on a distribution system are discussed. Application issues with each type of protective device are also reviewed. The course ends with a comprehensive example of how to protect a typical distribution circuit. This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

After taking this course the learner should:

• Understand the coordination philosophies that enhance reliability
• Know the types of faults that occur on distributions systems
• Be able to explain zones of protection
• Know the four possible fault types
• Know how to calculate fault currents
• Know how to calculate per-unit values
• Know how to apply different types of sectionalizing equipment and
• Understand how layout a simple protective scheme for a distribution system