Effect of thermal transient on the polarization and depolarization current measurements

@article{Fofana2011EffectOT,
  title={Effect of thermal transient on the polarization and depolarization current measurements},
  author={Issouf Fofana and Hossein Hemmatjou and Fethi Meghnefi},
  journal={IEEE Transactions on Dielectrics and Electrical Insulation},
  year={2011},
  volume={18}
}
In the last two decades, some new methods, based on the characterization of the dielectric response of transformer insulation in both time and frequency domains are being used by power utilities for assessment of the condition of power equipments. From fields and laboratory investigations, these techniques were found to be highly operating conditions dependant. During normal operating conditions, the temperature inside a transformer is much higher than ambient, depending upon the operating… CONTINUE READING