The effect of PD by-products on the dielectric frequency response of oil-paper insulation comprising of a small cavity
2015 (English)In: IEEE transactions on dielectrics and electrical insulation, ISSN 1070-9878, E-ISSN 1558-4135, Vol. 22, no 5, 2923-2930 p.Article in journal (Other academic) Published
This work investigates the effect of alternating current partial discharge (AC PD) byproducts on the dielectric frequency response (DFR) of oil-paper insulation in the frequency range of 1.0 mHz to 1.0 kHz. The investigations were done by utilizing experimental results in combination with a Finite Element Method (FEM) model. The results presented in this paper show that AC PD by-products in the oil-paper insulation can result in a dissipation factor curve whose magnitudes increase with increasing volume of the aged zone. The change in a dissipation factor curve due to PD byproducts was observed to occur mainly in the middle and low frequency regions. The results indicate that the dissipation factor curves in the middle and low frequency regions depend on the level of PD by-products in oil and paper, respectively.
Place, publisher, year, edition, pages
IEEE Press, 2015. Vol. 22, no 5, 2923-2930 p.
Cavity, dielectric frequency response (DFR), partial discharge, oil-paper insulation, Finite Element Methods (FEM), dissipation factor
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-142025DOI: 10.1109/TDEI.2015.004424ISI: 000364993800066ScopusID: 2-s2.0-84947982758OAI: oai:DiVA.org:kth-142025DiVA: diva2:699539
QC 201512142014-02-272014-02-272015-12-15Bibliographically approved