21-25 July 2019
Connecticut Convention Center, Level 6
US/Eastern timezone

M1Po2D-01 [45]: DC Surface Flashover Characteristics of ZnO/EP Composites at 77K

22 Jul 2019, 14:00
2h
Level 6, Cryo Expo Exhibit Hall

Level 6, Cryo Expo Exhibit Hall

Speaker

Kaikai Zhang (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences)

Description

Epoxy resin nanocomposites are widely used in high voltage direct current (HVDC) high temperature superconducting (HTS) power cable. In this paper, the DC flashover characteristics of ZnO/EP composites at both room temperature and 77K were studied. The samples were made by dispersing ZnO nanoparticles into EP resin with weight percentages of 0%, 1%, 3%, 6% and 10% respectively. The experiment was carried out under a cryogenic system in which DC high voltages ranging from 0kV to 100kV were supplied. The results show that the surface flashover voltages changed with the increase of ZnO content at 77K, and the surface flashover voltages at 77K were higher than that at room temperature for composites with the same ZnO content.

Primary author

Kaikai Zhang (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences)

Co-authors

Rongjin Huang (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences) Yongguang Wang (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences) Jian Li (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences) Hua Zhang (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences) Chi Zhang (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences) Huiming Liu (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS) Dong Xu (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS) Chuanjun Huang (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS) Laifeng Li (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences)

Presentation Materials