| |
A NEW REASON FOR BEARING CURRENT DAMAGES IN VARIABLE SPEED AC DRIVES
| [View]
[Download]
|
| Author(s) |
J. Ollila; T. Hammar; J. Iisakkala; H. Tuusa |
| Abstract |
This paper introduces the previously known reasons and a new phenomenon causing bearing failures in inverter fed AC-drives. Numerous laboratory tests with a 250 kW induction motor show, that this new phenomenon is dominant with IEC 355 frame size motors. Two easily realisable solutions to eliminate the bearing current problem are proposed. |
| Download |
| Filename: | Unnamed file |
| Filesize: | 531 KB |
|
| Type |
Members Only |
| Date |
Last modified 2016-03-09 by System |
| |
 |