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Enhancements in the lightning impulse breakdown characteristics of natural ester dielectric liquids

Abstract

In this letter, we experimentally demonstrate that the lightning impulse breakdown characteristics of natural ester liquids can be significantly enhanced by dispersing molecular additives possessing lower values of both the ionization potential and 1st excitation energies as compared to the base liquid. One such additive contributed to an increase in the breakdown and acceleration voltage of the base liquid by 32% and 90%, respectively. Apart from the expected influence of the low ionization potential of the additives, results also indicate a positive effect of lower value of 1st excitation energy. © 2013 AIP Publishing LLC

Category

Academic article

Client

  • Other / NORDISK ENERGIFORSKNING 79
  • Other / Nordisk Energiforskning 79

Language

English

Author(s)

Affiliation

  • Sweden
  • Norwegian University of Science and Technology
  • SINTEF Energy Research / Elkraftteknologi

Year

2013

Published in

Applied Physics Letters

ISSN

0003-6951

Publisher

American Institute of Physics (AIP)

Volume

102

Issue

17

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