Breakers and Switchgear - Videos and Related Books
Summary
This 42-minute video explains the basics of how common types of circuit breakers work. It shows how to perform routine mechanical maintenance and electrical tests on circuit breakers.
Training Sessions
Principles of Operation - 13 minutes
Explains how oil, air-magnetic, vacuum, and SF6 circuit breakers open contacts and extinguish arcs. Uses actual breaker hardware and color diagrams. Describes how protection circuits detect line over-currents, over-voltages, and under-voltages, and operate with breakers.
Routine Maintenance – 29 minutes
Shows how to rack out, inspect and clean the interior of air-magnetic and vacuum breakers. Describes how to remove oil from a oil circuit breaker for testing. For SF6 breakers, demonstrates how to perform visual inspections, how to remove and handle SF6 gas. Demonstrates routine electrical tests for all breakers.
Videos
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Books
This book reinforces learning from the video. It has informative text and color pictures throughout. Also a good resourse for learning on your own. A handy, compact book. Approximately 40 pages. More info
Supplementary classroom exercises with quizzes for every session. Approximately 30 pages. More info