Experimental study of magnetic colloidal fluids behavior in power transformers

Authors
Segal, V Rabinovich, A Nattrass, D Raj, K Nunes, A
Citation
V. Segal et al., Experimental study of magnetic colloidal fluids behavior in power transformers, J MAGN MAGN, 215, 2000, pp. 513-515
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
215
Year of publication
2000
Pages
513 - 515
Database
ISI
SICI code
0304-8853(200006)215:<513:ESOMCF>2.0.ZU;2-R
Abstract
A newly developed colloidal magnetic fluid (MF) has been investigated for u se as high-voltage insulation. Being a liquid magnet, MF interacts with the magnetic field of transformer windings and improves their cooling, while a t the same time MF increases the lightning impulse withstand voltage and de creases the discharge propagation velocity, probably due to an enhanced ele ctric field dissipation due to the presence of magnetite nanoparticles. (C) 2000 Elsevier Science B.V. All rights reserved.