Volume 35 Issue 9
Sep.  2023
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Article Navigation >  High Power Laser and Particle Beams  > 2023  >  35(9): 095001
Shangguan Danhua, Deng Li, Li Gang, et al. A Shannon entropy-based strategy for adjusting history number of time-dependent transport problem automatically[J]. High Power Laser and Particle Beams, 2018, 30: 016004. doi: 10.11884/HPLPB201830.170250
Citation: Ge Jianwei, Li Junna, Li Qisheng, et al. Experiment and optimal design of flashover characteristics of support insulators for 1 MV gas insulated Tesla transformer[J]. High Power Laser and Particle Beams, 2023, 35: 095001. doi: 10.11884/HPLPB202335.230075
shu

Experiment and optimal design of flashover characteristics of support insulators for 1 MV gas insulated Tesla transformer

doi: 10.11884/HPLPB202335.230075

  • State Key Laboratory of Electrical Insulation, Xi'an Jiaotong University, Xi'an 710049, China

  • Received Date: 2023-04-03
  • Accepted Date: 2023-07-19
  • Rev Recd Date: 2023-07-11
    • Available Online: 2023-07-18
  • Publish Date: 2023-09-15
    Abstract
  • To realize the miniaturization and lightweight design of Tesla transformer with high output voltage, the relationship between the surface flashover characteristics of support insulators and the surface electric field in a 0.5 MPa SF6 gas environment is studied. The electric field simulation model of Tesla transformer is established using the finite element method. Combined with experimental research, the surface flashover process of support insulators is analyzed, and the field equivalent experimental methods and conclusions of key insulation components of Tesla transformer are clarified. Based on the above analysis, the structure of support insulators is optimized. After optimization, the maximum electric field along the concave side of the support insulator decreases by about 81.5%, the average value of tangential electric field intensity decreases by about 10.3%, while the average value of normal electric field intensity decreases by about 30%, the distance along the surface increases by 11.8%, and the electric field unevenness coefficient decreases from 5.03 to 1.2. The electric field distribution is significantly improved, and the optimized insulator can withstand 1 MV negative polarity microsecond pulse voltage.
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