Temperature dependence of the resistance of modern epoxy mica insulation of HV rotating machines

Author

Lamarre, Laurent ; David, ?‰ric

Author_Institution

Hydro-Quebec (IREQ), Varennes, QC

Volume

15

Issue

5

fYear

2008

fDate

10/1/2008 12:00:00 AM

Firstpage

1305

Lastpage

1312

Abstract

This work presents the temperature dependence of the dielectric properties of two types of epoxy mica insulation systems. Polarization and depolarization currents, insulation resistance, capacitance and polarization index were measured over a temperature range of 20 to 100degC on whole rotating machine stator bars. An analytical relationship of the correction of the resistance as a function of temperature was derived from the experimental results.

Keywords

dielectric properties; electric machines; electric resistance; epoxy insulation; machine insulation; mica; stators; HV rotating machine stator bars; capacitance; depolarization currents; dielectric properties; epoxy mica insulation; insulation resistance; polarization currents; polarization index; temperature 20 C to 100 C; temperature dependence; Capacitance measurement; Current measurement; Dielectric measurements; Dielectrics and electrical insulation; Electrical resistance measurement; Polarization; Rotating machines; Rotation measurement; Temperature dependence; Temperature measurement; IEEE Std-43; depolarization; epoxy mica; insulation resistance; polarization; rotating machine insulation;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

Conference_Location

10/1/2008 12:00:00 AM

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2008.4656238

Filename

4656238