Access Restriction

Author Stone, G.C. ♦ Culbert, I.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2009
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Partial discharges ♦ Testing ♦ Wounds ♦ Stators ♦ Voltage ♦ Surges ♦ Detectors ♦ Pulse measurements ♦ Insulation ♦ Inverters
Abstract Modern inverter fed motors often produce short risetime, high magnitude voltage surges that may lead to partial discharge in the random wound stator windings. Detection of PD during such voltage surges can not be done with the usual PD detectors described by ASTM D1868. Instead a detector that can separate PD pulse currents from a short risetime voltage surge is required. This paper describes a PD detector that can measure PD pulses when the applied voltage is a voltage surge with a risetime as short as 100 ns. PD data has been collected from dozens of stators, many of which had known insulation problems. In most cases the PDIV easily met the requirements of a new IEC technical specification that sets the partial discharge inception voltages for random wound stators. Since most of these stators had obvious insulation system deficiencies, it seems that the PDIV levels set by IEC TS 60034-18-41 may be too low.
Description Author affiliation: Iris Power LP, 3110 American Drive, Mississauga, ON, Canada L4V 1T2 (Stone, G.C.; Culbert, I.)
ISBN 9781424439157
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-05-31
Publisher Place Canada
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 397.78 kB
Page Count 4
Starting Page 188
Ending Page 191

Source: IEEE Xplore Digital Library