1 / 7

Introduction to Plasma Processing

Introduction to Plasma Processing. SF 6 Circuit Breaker Student: Hosny, Ahmed A. Instructor: Prof. Kasra Etemadi. Outline …. Introduction Why SF 6 Circuit Breakers? Advantages/Disadvantages How does it work? Applications Summary References. Introduction.

long
Download Presentation

Introduction to Plasma Processing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to Plasma Processing SF6 Circuit Breaker Student: Hosny, Ahmed A. Instructor: Prof. Kasra Etemadi

  2. Outline … • Introduction • Why SF6 Circuit Breakers? • Advantages/Disadvantages • How does it work? • Applications • Summary • References

  3. Introduction • What Kind of Plasma do we deal with?

  4. Introduction • What is Circuit Breakers (CBs)? • CB is one of the most essential safety mechanisms in electric networks. • Interrupt short circuit currents (~ 60kA, low pf ~ 0.1). • Fault clearance time is very important for power system stability and avoid equipment damage for itself and the rest of the network.

  5. Introduction (Cont.) • CBs types • Oil circuit breakers • Vacuum circuit breakers • Magnetic Air Circuit Breakers • Air-blast circuit breakers • SF6 circuit breakers Figure 2 SF6 partial interrupter unit.

  6. Advantages/Disadvantages? • SF6 has a dielectric strength of about two to three times that of air. • It is nontoxic. • It is nonflammable. • It is noncorrosive; it doesn’t react with other materials because it is inert gas. However, when it is heated to 5000C it decomposes and its decomposition products react with other materials. • It exhibits excellent properties for arc quenching. So, it used as an interrupting medium in circuit breakers instead of air or oil.

  7. Applications • Gas-insulated switchgear (GIS) Figure 3 GIS layout

More Related