NUCLEAR-MAGNETIC-RESONANCE IMAGING OF ELECTRICAL TREES IN PE

Authors
WEIGAND F SPIESS HW BLUMICH B SALGE G MOLLER K
Citation
F. Weigand et al., NUCLEAR-MAGNETIC-RESONANCE IMAGING OF ELECTRICAL TREES IN PE, IEEE transactions on dielectrics and electrical insulation, 4(3), 1997, pp. 280-285
Citations number
29
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on dielectrics and electrical insulation → ACNP
ISSN journal
10709878
Volume
4
Issue
3
Year of publication
1997
Pages
280 - 285
Database
ISI
SICI code
1070-9878(1997)4:3<280:NIOETI>2.0.ZU;2-7
Abstract
Test samples of LDPE (low-density polyethylene) were electrically aged until PD (partial discharge) and electrical treeing occurred. Investi gations on the spatial distribution of microscopic domain sizes in the lamellar morphology of the samples were carried out applying a novel method oi proton NMR imaging which probes magnetization transfer by sp in diffusion. Spatial changes of LDPE morphology are detected due to t he appearance of PD.