NDLI: Inverter drive issues and magnet wire responses

Content Provider	IEEE Xplore Digital Library
Author	Beeckman, R.J.
Copyright Year	1999
Abstract	Inverter driven motors save energy and provide versatility to manufacturing and other processes. Drives allow relatively lower cost motors to run at variable speeds, but the higher voltage spikes generated by some drives have been linked to premature failure of otherwise reliable motors. Failure analyses of some of these motors have shown evidence of partial discharge damage. Motor manufacturers have scrutinized their manufacturing processes and materials to develop motors that are much more resistant to this type of failure mechanism. Magnet wire companies have developed products that are much more resistant to partial discharges, but some motors are still failing due to the continual bombardment of high voltage spikes generated by the switching devices in the drives. Much more data has been generated on corona inception and extinguish voltages in an effort to better understand the problem. This paper attempts to qualify and quantify some of the issues related to premature failure of motors running on IGBT drives. Benefits of using some different types of magnet wire insulation are explained. Specific data related to CIV vs. magnet wire insulation build are presented.
Starting Page	139
Ending Page	141
File Size	203073
Page Count	3
File Format	PDF
ISBN	0780357574
ISSN	03622479
DOI	10.1109/EEIC.1999.826195
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Wire Manufacturing processes Voltage Failure analysis Partial discharges Cable insulation Costs Magnetic materials Magnetic devices
Content Type	Text
Resource Type	Article

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