Title :
Evaluation of epoxy based nanodielectrics for high voltage outdoor insulation
Author :
Iyer, G. ; Gorur, R.S. ; Richert, R. ; Krivda, A. ; Schmidt, L.E.
Author_Institution :
Sch. of Electr., Arizona State Univ., Tempe, AZ, USA
Abstract :
Nano and micro based epoxy samples have been evaluated for predicting their electrical performance in outdoor high voltage insulation applications. Scanning electron microscopy (SEM) is used to evaluate the shape and the dispersion of the filler material. Space charge characterization and the role of the interface in these materials is evaluated using dielectric spectroscopy on these samples. The results of dielectric spectroscopy reveal the potential of improved electrical performance in terms of dielectric strength and tracking and erosion performance of the nano-filled samples as compared to the micro-filled counterparts. The uniform filler dispersion and the low loss tangent values have been used to theorize the improvement that can be expected from nano-composites in the field of outdoor insulation.
Keywords :
electric strength; epoxy insulation; nanocomposites; scanning electron microscopy; space charge; SEM; dielectric spectroscopy; dielectric strength; epoxy based nanodielectric evaluation; filler material dispersion; high voltage outdoor insulation; low loss tangent values; microbased epoxy; nanocomposites; scanning electron microscopy; space charge characterization; Dielectric breakdown; Dielectric materials; Dielectrics and electrical insulation; Electric potential; Electrochemical impedance spectroscopy; Insulation life; Scanning electron microscopy; Shape; Space charge; Voltage;
Conference_Titel :
Electrical Insulation (ISEI), Conference Record of the 2010 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-6298-8
DOI :
10.1109/ELINSL.2010.5549743
