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Breakdown Characteristics of the Insulating Medium in Foil-film Capacitors Under DC Superimposed Harmonic Voltage at Different Temperatures
ID：106 View Protection：ATTENDEE Updated Time：2020-10-15 18:47:04 Hits：798 Oral Presentation

Start Time：2020-11-03 11:15（Asia/Shanghai）

Duration：15min

Session：D High Voltage and Insulation Technology » D2Session 14 and Session 19

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Abstract
With the increasing application of nonlinear electrical equipment in the industrial field, the harmonic content in the power grid is gradually increasing, which brings great harm to the foil-film capacitors used in the system. In order to study the breakdown characteristics of the dielectric in the foil-film capacitor under DC superimposed harmonic voltage at different temperatures, a breakdown test platform is established for the foil-film capacitor immersed in benzyl toluene and the foil-film capacitor elements are subjected to DC voltage, DC superimposed 3rd harmonic voltage, DC superimposed 5th harmonic voltage at 40℃, 55℃, 70℃ and 85℃ respectively. The results show that under the same type of voltage, the breakdown strength of the insulating medium in the foil-film capacitors decreases with the increasing temperature. Besides, in the temperature range of 40℃~85℃, the breakdown strength of the insulating medium of the foil-film capacitors decreases with the increase of the harmonic order of the harmonic voltage at the same temperature.
 
Keywords
breakdown characteristics; foil-film capacitor; harmonic content; insulating medium; temperature
Speaker
Tian Fang
student Huazhong University of Science and Technology

Submission Author
Hua Li Huazhong University of Science and Technology；School of Electrical and Electronic Engineering
Tian Fang Huazhong University of Science and Technology
Letian Tang Huazhong University of Science and Technology；School of Electrical and Electronic Engineering
Jiang Guo China Electric Power Research Institute；China Electric Power Research Institute Co., Ltd. Wu Han
Qingdong Zhu State Grid；State Grid Shandong Electric Power Company Electric Power Research Institute
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Important Date

  • Conference Date

    Nov 02

    2020

    to

    Nov 04

    2020

  • Oct 27 2020

    Draft paper submission deadline

  • Nov 03 2020

    Contribution Submission Deadline

  • Nov 04 2020

    Registration deadline

  • Nov 17 2020

    Final Paper Deadline

Sponsored By
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
Organized By
Huazhong University of Science and Technology
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