Heuristic Estimation of Parameters in High-Frequency Models of Induction Motors for Bearing Currents Simulation

2016 ◽  
Vol 9 (6) ◽  
pp. 355
Author(s):  
Wiliam Mejia ◽  
Diego Rodriguez ◽  
Sergio Rivera ◽  
Javier Rosero Garcia
Keyword(s):  
High Frequency ◽  
Induction Motors ◽  
Estimation Of Parameters

scholarly journals A Study of Possible Reasons of the Damage by Electric Current of Traction Induction Motors Bearings of Electric Trains Lastochka and the Ways to Prevent This

2021 ◽  
Vol 2096 (1) ◽  
pp. 012001
Author(s):  
M Pustovetov
Keyword(s):  
Electric Current ◽  
High Frequency ◽  
Induction Motors ◽  
Electrical Breakdown ◽  
The Other ◽  
Technical Solution ◽  
Insulation Coating ◽  
Rolling Elements ◽  
Current Flows ◽  
Frequency Current

Abstract 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, replace the bearings on the other with ceramic rolling elements, arrangement of separate high-frequency grounding for the GSM-R antenna.

High-Frequency Interbar Current Losses in Cage Induction Motors Under No-Load Condition

2014 ◽  
Vol 29 (3) ◽  
pp. 698-705 ◽  
Author(s):  
Akihito Nakahara ◽  
Satoshi Kikuchi ◽  
Kazuo Nishihama ◽  
Tsutomu Miyoshi ◽  
Keiichiro Kaihatsu
Keyword(s):  
High Frequency ◽  
Induction Motors ◽  
Load Condition

Flux and Voltage Calculations of Induction Motors Supplied by Low- and High-Frequency Currents

2009 ◽  
Vol 45 (2) ◽  
pp. 737-746 ◽  
Author(s):  
Alfio Consoli ◽  
Giovanni Bottiglieri ◽  
Giuseppe Scarcella ◽  
Giacomo Scelba
Keyword(s):  
High Frequency ◽  
Induction Motors
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