High-voltage testing on UHV equipment: Overshoot and base curve for oscillating lightning impulse

Satoshi Matsumoto, Tatsuo Kawamura

Research output: Contribution to journalReview articlepeer-review

2 Citations (Scopus)


As the higher impulse testing voltage, residual inductance of the test circuit or the stray capacitance of the test object increases with size. This means that the overshoot superposed on standard lightning impulse voltage would not be neglected because of its larger value during the lightning test. This paper describes the analysis of overshoot and oscillation based on the equivalent circuit containing a residual inductance. The waveform parameters such as relative overshoot magnitude, oscillation frequency are also derived, to evaluate the influence of the residual inductance in the impulse testing circuit. The oscillating impulse waveform is related to the base curve of the standard lightning impulse. Furthermore, the base curve for oscillating impulse is proposed by the analysis.

Original languageEnglish
Pages (from-to)97-101
Number of pages5
JournalIEEJ Transactions on Electrical and Electronic Engineering
Issue number1
Publication statusPublished - 2009 Jan


  • Base curve
  • Lightning impulse test
  • Oscillating impulse
  • Overshoot
  • Residual inductance
  • UHV
  • Waveform parameter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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