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Study of partial discharges in bubbles and microsphere in transformer oil Full article

Conference 3RD ALL-RUSSIAN SCIENTIFIC CONFERENCE THERMOPHYSICS AND PHYSICAL HYDRODYNAMICS WITH THE SCHOOL FOR YOUNG SCIENTISTS, TPH 2018 3RD ALL-RUSSIAN SCIENTIFIC CONFERENCE THERMOPHYSICS AND PHYSICAL HYDRODYNAMICS WITH THE SCHOOL FOR YOUNG SCIENTISTS
10-16 Sep 2018 , Ялта, Крым
Journal Journal of Physics: Conference Series
ISSN: 1742-6588
Output data Year: 2018, Volume: 1128, Article number : 012118, Pages count : 6 DOI: 10.1088/1742-6596/1128/1/012118
Authors Korobeynikov S M 1,2 , Ovsyannikov A G 2 , Ridel A V 1,2 , Karpov D I 1
Affiliations
1 Lavrentyev Institute of Hydrodynamics of SB RAS
2 Novosibirsk State Technical University

Abstract: Partial discharges in free bubbles floating in transformer oil and in a glass sphere are studied both experimentally and theoretically. Optical, electrical and optoelectronic registration was performed to obtain partial discharge pattern. The time duration of electrical and optoelectronic signals were practically the same and equaled to 50 ns. PDs in bubbles were rare events even at the electric field two times higher than required by Pashen's law. In the case of rigid sphere the voltage of PD inception was practically the same as the value given by Pashen's law. Simulations of PD gave the values of "true" and the "apparent" charges close to those measured at the experiments. Simultaneous PDs in bubble and closely situated sphere were not recorded.
Cite: Korobeynikov S.M. , Ovsyannikov A.G. , Ridel A.V. , Karpov D.I.
Study of partial discharges in bubbles and microsphere in transformer oil
Journal of Physics: Conference Series. 2018. V.1128. 012118 :1-6. DOI: 10.1088/1742-6596/1128/1/012118 Scopus РИНЦ OpenAlex
Identifiers:
Scopus: 2-s2.0-85058640027
Elibrary: 38644226
OpenAlex: W2903617109
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