Covers the complex topic of Power System Protection and Coordination. After an introductory overview, we look at short-circuit calculations, fuses, and the protection of distribution transformers, feeders and lines. Finally, we’ll look at substations, overvoltage protection and ferroresonance.

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Protection for Distribution Transformers Course (PC4)

$220.00

Covers loading capabilities of transformers, withstand curves, fusing ratio and the need to limit fault energy. We also survey specialized equipment such as completely self-protected (CSP) transformers and pad-mounted units.

Course Code: PC4

Prerequisite Courses: Introduction to Protection and Coordination of Distribution Circuits Course (PC1), Short Circuit Calculations Course (PC2) and Fuses for Distribution Circuits Course (PC3)

Runtime: 30 minutes

Protection for Distribution Feeders and Lines Course (PC5)

$275.00

Examines the protection of main feeders emanating from the distribution station and the branches that feed local areas. We start with the fuses that protect lines outside the station and then go upstream to the relays that protect the main feeders at the station itself.

Course Code: PC5

Prerequisite Courses: Introduction to Protection and Coordination of Distribution Circuits Course (PC1), Short Circuit Calculations Course (PC2) and Fuses for Distribution Circuits Course (PC3) and Protection for Distribution Transformers Course (PC4)

Runtime: 40 minutes

Protection for Distribution Substation Transformers Course (PC6)

$165.00

We look at faults on distribution substation transformers and how they dictate protection settings, as well as how we deal with transformer inrush and pickup current. We show how to select a primary fuse to protect the station transformer and how to coordinate with upstream and downstream devices. Finally, we’ll look at the complete protection scheme for a real-world substation.

Course Code: PC6

Prerequisite Courses: Introduction to Protection and Coordination of Distribution Circuits Course (PC1), and Protection for Distribution Feeders and Lines Course (PC5)

Runtime: 20 minutes

Protection for Overvoltage and Ferroresonance in Distribution Circuits Course (PC7)

$275.00

The sources of overvoltage, lightning waves, and how we test equipment to withstand these conditions. We discuss two lightning arrester designs and review the various classes of arresters and their effect on our systems. We wrap up with a discussion of ferroresonance.

Course Code: PC7

Prerequisite Course: Introduction to Protection and Coordination of Distribution Circuits Course (PC1)

Runtime: 35 minutes