Dielectric losses diagnosis of serviced aged oil impregnated paper insulation of HV power cables.

Author

Cichecki, Piotr ; Gulski, Edward ; Smit, J.J. ; van Nes, P. ; Ejigu, Alemayehu G. ; De Vries, Frank

Author_Institution

Delft Univ. of Technol., Delft, Netherlands

fYear

2009

fDate

May 31 2009-June 3 2009

Firstpage

216

Lastpage

219

Abstract

This contribution is focused on the application of laboratory dielectric losses measurements to the insulation of service aged oil-impregnated HV power cables. The goal is to investigate the dependence between the electrical and temperature stresses to impregnated paper insulation at different aging stages. By means of laboratory tests with differential transformer testing circuit on aged paper samples the following has been investigated: ldr The influence of voltage stress on tan delta measured on samples taken from different parts of cable insulation: close to conductor, middle part and outer part. ldrThe behaviour of dielectric losses as a function of test voltage and temperature for paper samples in different age condition.

Keywords

dielectric losses; power cable insulation; HV power cables; differential transformer testing; electrical stresses; laboratory dielectric losses measurements; serviced aged oil impregnated paper insulation; temperature stresses; voltage stress; Aging; Cable insulation; Circuit testing; Dielectric loss measurement; Dielectric losses; Dielectrics and electrical insulation; Oil insulation; Petroleum; Power cables; Power transformer insulation; dielectric losses; differential transformer; high voltage power cables; tan δ;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference, 2009. EIC 2009. IEEE

Conference_Location

Montreal, QC

Print_ISBN

978-1-4244-3915-7

Electronic_ISBN

978-1-4244-3917-1

Type

conf

DOI

10.1109/EIC.2009.5166348

Filename

5166348