The surface characterisation of arc erosion on a structured surface designed to reduce contact bounce
The surface characterisation of arc erosion on a structured surface designed to reduce contact bounce
A Ag/Ni electrical contact surface has been re-evaluated for volumetric contact erosion where a new improved method is developed to describe the wear distribution. The new method satisfies the requirement that there is near zero mass loss from the anode and cathode combined surfaces for the low DC voltage and current levels investigated, (14 V, 10.4 A).The Ag/Ni contact material is processed to create a highly structured surface designed to reduce contact bounce. It is shown that the bounce time is reduced significantly. The surfaces are measured for volumetric wear using X-Ray CT and conventional optical surface profiling. A methodology is adopted to determine the wear on a structured cathode surface by measurement of a reference anode surface.
McBride, J.W.
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Cross, K.J.
6d26e05d-3a5d-40bb-9529-4ce7f0c8320d
Bull, T.G.
f3f00de4-1bfa-42c4-b957-dbd95a1a9aa2
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Cross, K.J.
6d26e05d-3a5d-40bb-9529-4ce7f0c8320d
Bull, T.G.
f3f00de4-1bfa-42c4-b957-dbd95a1a9aa2
McBride, J.W., Cross, K.J. and Bull, T.G.
(2023)
The surface characterisation of arc erosion on a structured surface designed to reduce contact bounce.
In 2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM).
IEEE.
6 pp
.
(doi:10.1109/HOLM56075.2023.10352205).
Record type:
Conference or Workshop Item
(Paper)
Abstract
A Ag/Ni electrical contact surface has been re-evaluated for volumetric contact erosion where a new improved method is developed to describe the wear distribution. The new method satisfies the requirement that there is near zero mass loss from the anode and cathode combined surfaces for the low DC voltage and current levels investigated, (14 V, 10.4 A).The Ag/Ni contact material is processed to create a highly structured surface designed to reduce contact bounce. It is shown that the bounce time is reduced significantly. The surfaces are measured for volumetric wear using X-Ray CT and conventional optical surface profiling. A methodology is adopted to determine the wear on a structured cathode surface by measurement of a reference anode surface.
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e-pub ahead of print date: 19 December 2023
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Local EPrints ID: 489076
URI: http://eprints.soton.ac.uk/id/eprint/489076
ISSN: 2158‐9992
PURE UUID: c0218316-4849-49ed-9e61-eb4bf7036447
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Date deposited: 12 Apr 2024 16:36
Last modified: 13 Apr 2024 01:32
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Author:
K.J. Cross
Author:
T.G. Bull
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