HVDC Cable design and space charge accumulation, Part 3: Effect of temperature gradient

Fabiani, D; Montanari, GC; Teyssedre, G; Morshuis, P.H.F.; Bodega, R; Dissado, LA

HVDC Cable design and space charge accumulation, Part 3: Effect of temperature gradient

Journal article (2008)

Authors

D Fabiani External organisation

GC Montanari External organisation

G Teyssedre External organisation

P.H.F. Morshuis

R Bodega

LA Dissado External organisation

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Published Date

2008

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Abstract

The aim of this article is to investigate the extent of space charge accumulation due to a temperature gradient in comparison with other charge-supply mechanisms, particularly injection from the electrodes. For this purpose, space-charge measurements were carried out on HVDC cable models under application of different temperature gradients across the cable insulation, above and close to the threshold field for space-charge accumulation. The main results, consisting of space-charge patterns and extracted quantities, are discussed here.