Detection of water trees in medium voltage XLPE cables by return voltage measurements

Author

Jonuz, B. ; Morshuis, P.H.F. ; van Breen, H.J. ; Pellis, J. ; Smit, J.J.

Author_Institution

Delft Univ. of Technol., Netherlands

Volume

1

fYear

2000

fDate

2000

Firstpage

355

Abstract

Several methods are proposed in literature to characterize the state of deterioration of water-treed cable insulation. One of these methods is the return voltage measurement (RVM) method, which was initially introduced as a diagnostic method for oil-paper insulating systems. It is mostly used to determine the condition of the paper insulation of transformer windings. It has been shown that it is possible to use RVM for detection of water trees in XLPE cables. In this paper, a methodology is presented that allows the detection of water trees in PE and XLPE insulated cables, without the need for a reference measurement. Also, the influence of temperature on RVM measurements was examined, for cables with and without water trees

Keywords

XLPE insulation; electric strength; insulation testing; power cable insulation; trees (electrical); medium voltage XLPE cables; return voltage measurements; temperature; water trees; Cable insulation; Circuits; Electrical resistance measurement; Medium voltage; Personal communication networks; Polarization; Power transformer insulation; Temperature measurement; Trees - insulation; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-6413-9

Type

conf

DOI

10.1109/CEIDP.2000.885299

Filename

885299