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Course Background

Transmission and Distribution: Switchyards

Duration: ten minutesLanguages: English

This course provides an introduction to switchyards and their role in controlling, protecting, and directing high-voltage electricity within the transmission and distribution system.

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Course Description

This course defines the purpose of a switchyard, distinguishes it from voltage-transforming substations, and describes how switchyards manage the flow of high-voltage electricity. Learners will explore the primary functions of switchyards, including power flow control, isolation, protection, and system monitoring. The module also introduces key switchyard components and explains how electrical flow paths can be altered to isolate equipment while maintaining grid reliability and safety.

Learning Objectives:

  1. Describe how switchyards control, direct, and protect the flow of high-voltage electricity within the transmission system.
  2. Recognize the purpose of circuit breakers, disconnect switches, busbars, relays, surge arresters, and control systems.
  3. Explain how switching configurations allow equipment to be isolated safely while maintaining system continuity.
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