| Autor: |
Tsikhalevsky, I., Vakhrushev, K., Rusakov, A. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2624 Issue 1, p1-7, 7p |
| Abstrakt: |
During operation, numerous cases of electrical breakdown of the bearings of traction motors of ES2G trains were revealed. Damage to bearings due to electric current is expressed in increased noise and vibration during operation of TED. When current flows through the bearing, numerous craters are formed, which lead to a change in the structure of the metal, its destruction and formation of irregularities, which in turn leads to increased noise and vibrations. As measures to improve the operating conditions of the bearings, separate the working and protective grounding with cross-connection of power lines to current-carrying devices, and also introduce a circuit with a high-capacity capacitor in parallel with the protective grounding. Cross connection will reduce the voltage on the TED anchor bearings. Connecting the high-capacity capacitor will allow shunting the path of high-frequency interference through the bearings and thus reducing the magnitude of high-frequency currents through the armature bearings to values that do not cause electrical corrosion. The offered set of measures covers the identified causes of electrocorrosion. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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