THE DANGER OF WATER TREES IN POLYMER INSULATED POWER-CABLES EVALUATEDFROM CALCULATIONS OF ELECTRIC-FIELD IN THE PRESENCE OF WATER TREES OFDIFFERENT SHAPES AND PERMITTIVITY DISTRIBUTIONS

Authors
RADU I ACEDO M NOTINGHER P FRUTOS F FILIPPINI JC
Citation
I. Radu et al., THE DANGER OF WATER TREES IN POLYMER INSULATED POWER-CABLES EVALUATEDFROM CALCULATIONS OF ELECTRIC-FIELD IN THE PRESENCE OF WATER TREES OFDIFFERENT SHAPES AND PERMITTIVITY DISTRIBUTIONS, Journal of electrostatics, 40-1, 1997, pp. 343-348
Citations number
7
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Journal of electrostatics → ACNP
ISSN journal
03043886
Volume
40-1
Year of publication
1997
Pages
343 - 348
Database
ISI
SICI code
0304-3886(1997)40-1:<343:TDOWTI>2.0.ZU;2-Y
Abstract
From the assumption that water trees influence the AC electric field d istribution in the insulation due to their permittivity higher than th at of the surrounding medium, calculations of electric field in the vi cinity of model water trees are presented. The electric field is local ly amplified and reaches values high enough to be considered as a dang er for the cables.