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

B.H. Crichton, R.A. Fouracre, H.A. Gouda, M.T. Stickland

Research output: Chapter in Book/Report/Conference proceedingChapter

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.
LanguageEnglish
Title of host publication37th International Universities Power Engineering Conference
Subtitle of host publication(UPEC 2002) 9th, 10th & 11th September 2002
Place of PublicationStafford
Number of pages5
Publication statusPublished - 2002
Event37th International Universities Power Engineering Conference - University of Staffordshire, Stafford, United Kingdom
Duration: 9 Sep 200211 Sep 2002

Conference

Conference37th International Universities Power Engineering Conference
Abbreviated titleUPEC 2002
CountryUnited Kingdom
CityStafford
Period9/09/0211/09/02

Fingerprint

Contact angle
Partial discharges
Water
Flashover
High speed cameras
Video cameras
Pollution
Physical properties
Electric potential

Keywords

  • surface pollution
  • fluid dynamics
  • water
  • pumps
  • droplets

Cite this

Crichton, B. H., Fouracre, R. A., Gouda, H. A., & 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: (UPEC 2002) 9th, 10th & 11th September 2002 Stafford.
Crichton, B.H. ; Fouracre, R.A. ; Gouda, H.A. ; Stickland, M.T. / Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle. 37th International Universities Power Engineering Conference: (UPEC 2002) 9th, 10th & 11th September 2002. Stafford, 2002.
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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.",
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Crichton, BH, Fouracre, RA, Gouda, HA & Stickland, MT 2002, Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle. in 37th International Universities Power Engineering Conference: (UPEC 2002) 9th, 10th & 11th September 2002. Stafford, 37th International Universities Power Engineering Conference, Stafford, United Kingdom, 9/09/02.

Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle. / Crichton, B.H.; Fouracre, R.A.; Gouda, H.A.; Stickland, M.T.

37th International Universities Power Engineering Conference: (UPEC 2002) 9th, 10th & 11th September 2002. Stafford, 2002.

Research output: Chapter in Book/Report/Conference proceedingChapter

TY - CHAP

T1 - Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle

AU - Crichton, B.H.

AU - Fouracre, R.A.

AU - Gouda, H.A.

AU - Stickland, M.T.

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

KW - surface pollution

KW - fluid dynamics

KW - water

KW - pumps

KW - droplets

M3 - Chapter

SN - 190413307X

BT - 37th International Universities Power Engineering Conference

CY - Stafford

ER -

Crichton BH, Fouracre RA, Gouda HA, Stickland MT. Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle. In 37th International Universities Power Engineering Conference: (UPEC 2002) 9th, 10th & 11th September 2002. Stafford. 2002