NDLI: The effect of mechanical deformation and wire size on the ozone erosion resistance of inverter-duty magnet wires

Content Provider	IEEE Xplore Digital Library
Author	Metzler, D.A. Hake, J.E.
Copyright Year	1997
Description	Author affiliation: Rea Magnet Wire Co. Inc., Lafayette, IN, USA (Metzler, D.A.)
Abstract	The use of variable frequency PWM drives with long inverter-to-motor cable lengths produces ringing transmission line behavior and high voltage transients at the motor. In response to this, the major magnet wire manufacturers have introduced a number of different inverter-duty insulations. These new insulation systems incorporate oxide-filled polymer layers in different configurations in an effort to resist the erosive effects of ozone produced during corona discharge resulting from these voltage spikes. A large amount of accelerated life testing has been done on as-manufactured wire, but little testing done with inverter-duty wire that has been subjected to the rigors of actual motor winding processes. The purpose of this study is to evaluate the effects of mechanical deformation (i.e. wire stretch) upon the coronal erosion resistance of commercially available inverter-duty magnet wires incorporating oxide-filled corona shielding layers in their insulation systems. The effects of wire size were also investigated to determine the impact of wire size substitution during motor manufacture upon the ultimate coronal erosion resistance of the insulation system.
Starting Page	389
Ending Page	395
File Size	525450
Page Count	7
File Format	PDF
ISBN	0780339592
ISSN	03622479
DOI	10.1109/EEIC.1997.651160
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-09-25
Access Restriction	Subscribed
Rights Holder	Electrical Manuf. & Coil Winding Assoc., Inc.
Subject Keyword	Inverters
Content Type	Text
Resource Type	Article

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