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Predictive monitoring of turn-on-turn insulation in single tooth coils

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Author

Summary, in English

This work focuses on the investigation on both local and global dielectric properties for a random wound single tooth winding, which represents a segment of the in-field electrical machine used on an Hybrid Wheel Loader. Finite Element Analysis (FEA) is used to predict the temperature stress while loading and illustrate the influences of dielectric properties (i.e. conductivity and dielectric constant) on the global dielectric properties (i.e. dielectric resistance and capacitance). Based on the thermal simulation, dielectric response measurements are performed in the most thermally stressed region, which is between two randomly grouped winding strands. Both DC and AC dielectric characteristics are measured and analyzed, which provide a good insight to understand 1) the dielectric response 2) temperature dependent dielectric properties for strand to strand insulation. This provides a great foundation for the future work on stator winding degradation.

Publishing year

2015

Language

English

Publication/Series

2015 IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED)

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Leakage Current Measurement
  • Impedence Spectroscopy.
  • Equivalent Circuit
  • FEA Simulation
  • Dielectric Properties
  • Dielectric Response
  • Winding Insulation
  • Intermittent Load
  • Thermal Stress

Conference name

International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)

Conference date

2015-09-01

Conference place

Guarda, Portugal

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-1-4799-7743-7