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Influence of the mechanical drive concept on the bearing currents in inverter-fed AC traction machines
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| Author(s) |
M. Brauer; A. Jöckel; G. Gedeon |
| Abstract |
The use of modern pulse-width-modulated inverters implies the possibility of causing motor bearing
damages due to bearing currents. Nowadays, it is common to reduce bearing currents by using
expensive insulated bearings. In order to eventually avoid the bearing insulation, the bearing voltage
and current were investigated in case of an axle-hung locomotive drive. The measurements show that
some traction drives have a self-grounding effect by the gear unit, thus effectively reducing the
bearing voltage, capacitive bearing currents and EDM currents. |
| Download |
| Filename: | EPE2003-PP0617 - Brauer |
| Filesize: | 1.045 MB |
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| Type |
Members Only |
| Date |
Last modified 2004-01-21 by Unknown |
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