Diagnosis on the optical images of surface flashover discharge channel under pulsed voltage in air

Li Feng; Weng Weifeng; Jiang Jihao; Wang Meng; Wei Caihua

doi:10.11884/HPLPB201830.170420

Volume 30 Issue 10

Oct. 2018

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Li Feng, Weng Weifeng, Jiang Jihao, et al. Diagnosis on the optical images of surface flashover discharge channel under pulsed voltage in air[J]. High Power Laser and Particle Beams, 2018, 30: 105002. doi: 10.11884/HPLPB201830.170420

Citation:

Li Feng, Weng Weifeng, Jiang Jihao, et al. Diagnosis on the optical images of surface flashover discharge channel under pulsed voltage in air[J]. High Power Laser and Particle Beams, 2018, 30: 105002. doi: 10.11884/HPLPB201830.170420

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Diagnosis on the optical images of surface flashover discharge channel under pulsed voltage in air

doi: 10.11884/HPLPB201830.170420

Institute of Fluid Physics, Key Laboratory of Pulsed Power, CAEP, P.O.Box 919-108, Mianyang 621900, China

Received Date: 2017-10-31
Rev Recd Date: 2018-06-27
Publish Date: 2018-10-15

Abstract

Abstract

We investigated the discharge channel optical images of surface flashover on insulator under pulsed voltage in air. The CCD camera was used to diagnose the flashover characteristics of PMMA with finger electrodes in air. The experiments show that discharges occurred in both cathode region and anode region in channel forming and expansion stage. The velocity of channel forming was fast in 15 ns. The channel region kept on expanding with high luminous intensity and the whole discharge lasted more than 1 μs. Next, we would analyse the flashover physical process in air based on the discharge channel optical images.
- air,
- flashover,
- discharge channel,
- image of optical diagnosis

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References(11)

References

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