Skip to content
Research Article Open access CC BY 3.0

Defective Barrier on Voltage Optimization for Small Airgap

John Tarilanyo Afa

Current Journal of Applied Science and Technology · pp. 1301–1310 · Published 10 Aug 2013

10.9734/BJAST/2013/3653

Abstract

Aim: To investigate the effect of defective barrier on the optimum breakdown voltage, using positive and negative needle electrodes in an air medium of 10cm gap distance. Methodology: The barriers for the tests were placed at 2.5cm from the point electrode for each test. The defective barriers were created by having holes of 6mm, 8mm, 12mm and 20mm diameter at the centre of the barrier. For each barrier position the breakdown test for positive and negative polarity for needle electrodes were carried out. Also, tests were carried out with non defective barrier and with point-plane airgap (without barrier). Result: From the test without barrier the negative point electrode offered higher breakdown voltage (1.8 times), than the positive point. When with plain barrier the positive point was optimized to 1.6 times, while the negative point was lowered. The optimum breakdown voltage decreased gradually as the hole diameter increased and at 20mm hole diameter the effect was like the plain barrier. Conclusion: From the results, optimization is only effective with positive point’s electrode and it endures even with small opening within the ionization zone. It is necessary to check this in practical situations because the specified optimum voltage of an equipment may be lowered.

Negative polarity sharply non-uniform field gaseous volume defective barrier optimum voltage

References (5)

  1. 1 Influence of solid dielectric on the impulse discharge behaviour in a needle-to-plane air gap [DOI]
  2. 2 Effect of the dielectric barrier on discharges in non-uniform electric fields [DOI]
  3. 3 Breakdown of Composite Dielectrics: The Barrier Effect [DOI]
  4. 4 Impulse breakdown of small air gap in electric field Part I: Influence of barrier position [DOI]
  5. 5 HIGH VOLTAGE ENGINEERING [DOI]

Cited by 2

Theoretical Investigation on Barrier Effect on Point-Plane Air Gap BV

Rouini Abdelghani, Kouzou Abdellah, Larbi Messaouda · 2019 4th International Conference on Power Electronics and their Applications (ICPEA) · 2019

New approach for prediction the DC breakdown voltage using fuzzy logic controller

Rouini Abdelghani, A. Hafaifa, N. Derbel · Diagnostyka · 2018

Article metrics

Real usage data collected on this platform.

14

Page views

0

PDF downloads

1

Outbound clicks

2

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.