Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | 2012 20th International Conference on Electrical Machines, ICEM 2012 |
| Pages | 1602-1607 |
| Number of pages | 6 |
| Publication status | Published - 2012 |
| Event | 2012 20th International Conference on Electrical Machines, ICEM 2012 - Marseille, France Duration: 2 Sept 2012 → 5 Sept 2012 |
Publication series
| Name | Proceedings - 2012 20th International Conference on Electrical Machines, ICEM 2012 |
|---|
Abstract
Bearing currents in converter-fed three-phase motors are significantly dependent on the lubricant film condition. As a consequence, the lubricant film thickness and the resulting capacitance are important input quantities for a simulation model aiming at predicting bearing currents and harmful electric discharges, which was presented in corresponding work. In addition to speed, load and temperature, there is another influence on motor bearing film thickness: Vibrations caused by external excitation. A new test rig for ball bearings was designed to investigate the influence of vibrations on the lubricant film. After a brief description of the test rig, test results are presented. Based on these results, the probability of capacitive versus ohmic behaviour of the bearing is estimated.
Keywords
- Bearing Currents, Bearings, Capacitance Measurement, Condition Monitoring, Induction Motor Drives, Lubrication
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
- Engineering(all)
- Mechanical Engineering
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Proceedings: 2012 20th International Conference on Electrical Machines, ICEM 2012. 2012. p. 1602-1607 6350093 (Proceedings - 2012 20th International Conference on Electrical Machines, ICEM 2012).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Capacitance of bearings for electric motors at variable mechanical loads
AU - Wittek, Eike Christian
AU - Kriese, Michael
AU - Tischmacher, Hans
AU - Gattermann, Sven
AU - Ponick, Bernd
AU - Poll, Gerhard
N1 - Copyright: Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - Bearing currents in converter-fed three-phase motors are significantly dependent on the lubricant film condition. As a consequence, the lubricant film thickness and the resulting capacitance are important input quantities for a simulation model aiming at predicting bearing currents and harmful electric discharges, which was presented in corresponding work. In addition to speed, load and temperature, there is another influence on motor bearing film thickness: Vibrations caused by external excitation. A new test rig for ball bearings was designed to investigate the influence of vibrations on the lubricant film. After a brief description of the test rig, test results are presented. Based on these results, the probability of capacitive versus ohmic behaviour of the bearing is estimated.
AB - Bearing currents in converter-fed three-phase motors are significantly dependent on the lubricant film condition. As a consequence, the lubricant film thickness and the resulting capacitance are important input quantities for a simulation model aiming at predicting bearing currents and harmful electric discharges, which was presented in corresponding work. In addition to speed, load and temperature, there is another influence on motor bearing film thickness: Vibrations caused by external excitation. A new test rig for ball bearings was designed to investigate the influence of vibrations on the lubricant film. After a brief description of the test rig, test results are presented. Based on these results, the probability of capacitive versus ohmic behaviour of the bearing is estimated.
KW - Bearing Currents
KW - Bearings
KW - Capacitance Measurement
KW - Condition Monitoring
KW - Induction Motor Drives
KW - Lubrication
UR - http://www.scopus.com/inward/record.url?scp=84870791636&partnerID=8YFLogxK
U2 - 10.1109/ICElMach.2012.6350093
DO - 10.1109/ICElMach.2012.6350093
M3 - Conference contribution
AN - SCOPUS:84870791636
SN - 9781467301428
T3 - Proceedings - 2012 20th International Conference on Electrical Machines, ICEM 2012
SP - 1602
EP - 1607
BT - Proceedings
T2 - 2012 20th International Conference on Electrical Machines, ICEM 2012
Y2 - 2 September 2012 through 5 September 2012
ER -