Effects of the Insulation Quality on the Frequency Response of Power
Artikel i vetenskaplig tidskrift, 2006

This paper presents results of frequency domain spectroscopy (FDS) measurements on oilimpregnated pressboard insulation, their analyses and use of the data for modeling high frequency response (FRA) of transformers. The dielectric responses were measured in a broad frequency range, i.e. from 0.1 mHz to 1 MHz, on model samples containing different amount of moisture. The responses were parameterized with terms representing dc conductivity, low frequency dispersion and Cole-Cole polarization mechanisms and they were thereafter used to model the FRA response of a three-phase transformer.

Frequency response analysis

Insulation modeling

Frequency domain spectroscopy

Författare

Nilanga Abeywickrama

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Chandima Ekanayake

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Yuriy Serdyuk

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Stanislaw Gubanski

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

KIEE Journal of Electrical Engineering & Technology

Vol. 1 534-542

Ämneskategorier

Annan elektroteknik och elektronik