Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle

Crichton, B.H. and Fouracre, R.A. and Gouda, H.A. and Stickland, M.T. (2002) Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle. In: 37th International Universities Power Engineering Conference. Staffordshire University, Stafford. ISBN 190413307X

[img]
Preview
Text (strathprints007442)
strathprints007442.pdf - Accepted Author Manuscript

Download (401kB) | Preview

Abstract

Surface pollution of outdoor high-voltage insulators is an important cause of flashover. We have undertaken an experimental study of electrical breakdown at the edges of a sessile water droplet on a planar, polymeric, insulating surface when subject to AC stress, parallel to the insulator surface, up to 2MV/m. The static contact angle between droplet and surface was varied by controlling the physical properties of the droplet and by inclining the insulator plane from the horizontal. The partial discharge activity from the water droplet was investigated using a combination of high-speed video camera, operated at up to 3,000 frames per second, and an electrical partial discharge detection system. We have used this to examine the location of partial discharge at the edges of the water droplet.