Lesson series

SF6 Circuit Breakers

This training module covers the SF 6 Breakers and switchgear. It discusses the advantages of the unique arc quenching and insulating properties of SF6 gas. It also explores gas insulated switchgear with a comparison to using vacuum and the history of Medium Voltage circuit protection from Oil and Air breakers to vacuum and gas insulated designs. It concludes with a discussion on the various types of SF6 interrupters.
Course Length - 2 Hours
Write your awesome label here.

What's included?

  • Course Outline
  • Introduction to SF6 Gas
  • Why SF6?
  • Dead and Live Tank Design SF6 Outdoor Breakers
  • Types of Breaker Operating Mechanisms
  • How SF6 quenches arc
  • Non-puffer design interrupter
  • Single and Double Pressure Puffer Design Interrupter
  • Rotating Arc Design Interrupter
  • Summary and Selection Factors

Learning Objectives 

Upon completion of this course, the student will be qualified to:
  • Understand the benefits of using SF6 as an insulating gas.
  • Understand Dead and Live Tank Outdoor design SF6 Breakers
  • Know the history of GIS Switchgear
  • Be familiar with the importance of Arc Resistant Switchgear
  • Recognize the advantages of insulated bus
  • Be familiar with the economics of using GIS
  • Remember ANSI and IEC Ratings
  • Recognize the components of vacuum breakers
  • Be familiar with the components of a SF6 breaker
  • Know how an arc is extinguished in a vacuum breaker
  • Know how an arc is extinguished in a SF6 breaker
  • Know the 4 different types of SF6 interrupters
  • How to read a SF6 Breaker Nameplate
  • Have a general idea of the required maintenance of SF6 breakers.
  • Know the selection factors for GIS and SF6 breakers

Highlight

 You will also see the steps in the interrupting process of a SF6 Breaker

Course Lessons