Electric Distribution Protection Basics

Live Streaming Online September 13-14, 2022

A Program

Click Here to register ($1195)

If you are unable to attend at the scheduled date and time, we make recordings available to all registrants for three business days after the event

The Electric Distribution Protection Basics course begins with protection philosophies and methods. Attendees are introduced to single phase sectionalizing equipment including fuse cutouts, single phase recloser and single phase sectionalizers. Associated topics, including minimum pickup, reach and maximum available fault current, will provide a basis of understanding regarding line sectionalizing. The course also covers a full range of device-to-device coordination scenarios.

Learning Outcomes

  • Review of line impedances and their effect on available fault current
  • Identify the types of distribution faults
  • Discuss the operation of various types of overcurrent protective equipment
  • Review overhead vs. underground protection philosophy
  • Review Reliability Indices used to measure outage frequency and duration



8:30 a.m. – 4:30 p.m. Central Time

Protection Basics Overview

  • Line Impedance vs. Fault Current
  • Temporary vs. Permanent Faults
  • Time Current Curves

Protective Equipment

  • Device Ratings, Standards and Application Factors
    • Fuses
    • Expulsion
    • Current Limiting
  • Reclosers
    • Dual timing characteristics
    • Design Options
    • Controls and Setting
  • Trip Saver
  • Sectionalizers
    • Design Options
    • Applications

Device to Device Coordination

  • Fuse/Fuse
  • Fuse/Recloser
  • Recloser/Recloser
  • Sectionalizer/Recloser


9:00 a.m. – 12:00 p.m. Central Time

Overvoltage Protection

  • Surge Arrester operation
  • Arrester installation

Underground Protection

  • OH vs. UG protection philosophy
  • Riser Pole Fusing

System Reliability

  • Reliability Indices: SAIFI, SAIDI, etc.