Course ID
TDB113

COURSE DESCRIPTION

During normal usage, pole top equipment is subjected to conditions such as heat, rain, lightning, and mechanical problems that can lead to equipment damage or failure. This course identifies some equipment used to prevent equipment damage or failure, and to provide coordinated protection for a distribution system. The course also explains how this equipment operates.

COURSE GOALS

  • Identify some of the equipment used to provide coordinated protection for a distribution system.
  • Explain how to replace a fuse and a damaged fused cutout.
  • Describe how reclosers are classified and how they operate.

 

SUBJECTS AND OBJECTIVES

Introduction to Pole Top Equipment

  • Describe how fused cutouts, reclosers, and sectionalizers can be used to provide coordinated protection for a distribution system.
  • Describe two examples of coordinated system protection.

Cutouts

  • Describe how fused cutouts are designed.
  • Describe how to replace a fuse in a fused cutout.
  • Describe how to safely replace a fused cutout.

Reclosers

  • Describe how reclosers are classified.
  • Explain the operation and operating cycles of two types of recloser control mechanisms.