Theoretical Models for the Arc in the Current Zero Regime

  • B. W. Swanson
Part of the Earlier Brown Boveri Symposia book series (EBBS)


This paper describes the current state-of-the-art of nozzle arc modeling. It begins with a discussion of arc turbulence and radiation followed by a review of three arc models that have the most potential for design application. The merits and limitations of each model are discussed and recommendations are made for further model development. The discussion shows the importance of arc turbulence and the practicality of modeling the arc as a circuit element. A comparison of arc models gives insight into the influence of gas properties on arc interruption and the explanation of observed arc phenomena. The potential for design application is demonstrated by analyzing the effects of normal shock waves on arc interruption to explain the known variation of interrupting ability with nozzle pressure ratio.


Mach Number Compression Shock Eddy Diffusivity Circuit Breaker Nozzle Geometry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1978

Authors and Affiliations

  • B. W. Swanson
    • 1
  1. 1.Westinghouse Research and Development CenterPittsburghUSA

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