301-03 - Primary and Secondary Distribution Systems

301-03 - Primary and Secondary Distribution Systems

Learning objectives

  • Recall the history of network distribution systems
  • Recognize the difference between two and one breaker system designs
  • Identify the function of a primary distribution system
  • Identify the function of a secondary distribution system
  • Recognize the benefits related to network distribution systems
  • Identify the common types of system design
  • Identify the stages of system design

Course overview

The distribution process is the final step in providing energy to customers. After transmission has carried the energy to the load area, a distribution system modifies the voltage to a useable level. It then distributes it to consumers evenly, reliably, and economically.

The Primary and Secondary Distribution Systems training course describes these network systems. It discusses the benefits of primary and secondary distribution systems. It also explains how to create a riser diagram. This online course explores:

  • History of network distribution systems
  • Functions of primary distribution systems
  • Properties of secondary distribution systems
  • Common system designs
  • Benefits of a network system

This course is part of the Distribution Systems training series.


The individuals involved in the development and promotion of this course do not receive any compensation or financial benefits outside of their regular employment for their work on this course.


  • 55 minutes
  • Format: Online Interactive
  • English
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