Effect of voltage rise time on time-to-failure of form-wound stator coil enamelled turn insulation

@article{Moonesan2014EffectOV,
  title={Effect of voltage rise time on time-to-failure of form-wound stator coil enamelled turn insulation},
  author={Mohammad Saleh Moonesan and Shesha H. Jayaram and Edward. A. Cherney and Ramtin Omranipour and Saeed Ul Haq},
  journal={2014 IEEE Electrical Insulation Conference (EIC)},
  year={2014},
  pages={167-171}
}
The paper presents the results of aging of medium voltage stator coil enamelled turn insulation under square waves having rise times of 270 ns and 4.5 μs. Unipolar square waves having a peak voltage of 2.5 kV and a switching frequency of 3 kHz were applied to enamelled wire samples while measuring online partial discharge. A two-parameter Weibull distribution was employed for analysis of the effect of rise time on insulation life. The tests were repeated at 6 kV peak with duty cycles of 15% and… CONTINUE READING