Title :
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
fDate :
May 31 2009-June 3 2009
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;
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
DOI :
10.1109/EIC.2009.5166348
