Aging of oil-impregnated paper at different frequencies

Aging of oil-impregnated paper at different frequencies

Ghaffarian Niasar, M. (TU Delft DC systems, Energy conversion & Storage)
Zhao, W. (TU Delft DC systems, Energy conversion & Storage)

2021

In this work, breakdown strength and lifetime curve of oil-impregnated paper (OIP) are compared at 50Hz and 1500 Hz. For the ramp breakdown tests, sinusoidal voltage ramp of 1 kVp/s is used. The ramp breakdown experiments is conducted on OIP samples made of single and double sheets of OIP. Weibull plots and interpretation of the results are presented. In order to obtain lifetime curves, a step sinusoidal voltage waveform whose peak value is close to the minimum OIP ramp breakdown voltage is applied on single sheet of OIP samples. Time to breakdown is measured, and each experiment is repeated between 20-30 times to obtain good statistical results. The experiments were focused on four different voltage levels and the lifetime curves are plotted for those two target frequencies. Parameters of the lifetime curves are extracted and the interpretation is given.

aging
breakdown voltage
high frequency electric stress
lifetime curve
Oil-impregnated paper

http://resolver.tudelft.nl/uuid:1574ab94-72a2-4478-b6ca-bd0fc966c212

https://doi.org/10.1109/ICPADM49635.2021.9493911

IEEE

9781728182384

13th International Conference on the Properties and Applications of Dielectric Materials: Emerging Dielectrics for Energy Sustainability, ICPADM 2021

13th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2021, 2021-07-12 → 2021-07-14, Virtual, Online

Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials, 2021-July

Accepted Author Manuscript

Institutional Repository

conference paper

© 2021 M. Ghaffarian Niasar, W. Zhao