A study of possible reasons of the damage by electric current of traction induction motors bearings onboard of electric trains «Lastochka»
There is a problem of damage of bearings of traction induction motors of electric trains «Lastochka» by electric current. Based on the fact that the bearings have a ceramic insulation coating, and the cases of its electrical breakdown is not fixed, the authors put forward a version that a high-frequ...
| Main Authors: | , |
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| Format: | Article |
| Language: | deu |
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Academician I.G. Petrovskii Bryansk State University
2018-12-01
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| Series: | Naučno-Tehničeskij Vestnik Brânskogo Gosudarstvennogo Universiteta |
| Subjects: | |
| Online Access: | http://ntv-brgu.ru/wp-content/arhiv/2018-N4/2018-04-06.pdf |
| Summary: | There is a problem of damage of bearings of traction induction motors of electric trains «Lastochka» by electric current. Based on the fact that the bearings have a ceramic insulation coating, and the cases of its electrical breakdown is not fixed, the authors put forward a version that a high-frequency current flows through the bearing as through an electric capacitance. The analysis show that the cause of the current can be a radio standard GSM-R The proposed technical solution against the damage of bearings: the use of grounding shaft rings and replace the bearings on the other with ceramic rolling elements. |
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| ISSN: | 2413-9920 |