Validation of a Non-invasive Measuring Method to Determine the Arc Position of an Axially Blown Switching Arc

Authors

  • M. Forschelen
  • P. G. Nikolic
  • M. Stoffels
  • A. Schnettler

Keywords:

non-invasive diagnostics, arc position, arc resistance distribution, optical investigations

Abstract

Today’s research on circuit breaker concepts for alternative insulation and quenching gases is focused on the understanding of the physical processes during a switching process as well as the interaction of the blow gas flow and the switching arc. In order to determine these influences a non-invasive measuring method is established which allows the determination of the spatial arc resistance distribution of an axially blown switching arc to gain a deeper understanding of the cooling processes. In addition, this system is capable of detecting the position of the switching arc by means of trilateration with a measurement system consisting of multiple capacitive field probes. The measurement system is adapted to a laval nozzle geometry and investigations in nitrogen are performed. The results of these investigations are compared to basic optical investigations on switching arcs within this laval nozzle to validate the applicability of the assumptions made for the position determination.

Downloads

Published

2015-04-05

Issue

Vol. 2 No. 1 (2015)

Section

Articles

License

Copyright (c) 2015 M. Forschelen, P. G. Nikolic, M. Stoffels, A. Schnettler

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 Unported License.

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).