Current Interruption Using Electromagnetically Convolved Electric Arcs in Gases

Leonid Shpanin, GR Jones, JE Humphries, JW Spencer

Research output: Contribution to journalArticle

8 Citations (Scopus)


Measurements were described as current, voltage, and local dielectric strength for a current interrupter which utilized a novel form of electromagnetically convolved electric arc in air. Experiments have been performed with various interrupter structures and operational conditions. Precurrent zero-voltage extinction peaks and post-arc local breakdown voltages have been measured and are compared with values for nonconvoluted arcs in nitrogen and SF6 An empirical relationship between the extinction peak voltage and various design and operational parameters is presented. Signatures for the various interrupter structures under different operational conditions have been obtained by using a chromatic methodology and embodying the extinction peak and a local breakdown voltage.
Original languageEnglish
Pages (from-to)1924-1930
Number of pages7
JournalI E E E Transactions on Power Delivery
Issue number4
Publication statusPublished - 1 Oct 2009


  • dielectric measurements
  • arc discharges
  • plasma control
  • data processing
  • plasma arc devices
  • magnetic fields
  • Ablation


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