Abstract Details
117 / 2024-04-13 15:42:41
The Effect of Fault Current on the Post Arc Dielectric Recovery of 500V Low Voltage AC Fuses
Fuse,post arc,dielectric recovery
Draft Accepted
When a fuse interrupt the fault current, the ability of the fuse to withstand the TRV without dielectric breakdown after current zero determines whether the interruption is successful or not. At present, there is relatively little research on the post arc process of fuses, and the specific process of the post arc dielectric recovery of fuses is not clear. In this paper, the post arc dielectric recovery process of fuses with a rated voltage of 500VAC is experimentally investigated. The dielectric recovery is measured by applying 1500V DC voltage pulse to the fuse after current zero. The dielectric recovery process of fuses under both overload and short circuit conditions is studied. It is found that when the fault current is 8 times the rated current, the dielectric recovery speed of the fuse is much slower than that of 35 times the rated current. Meanwhile, the experimental result has significant dispersity when the fault current is 8 times the rated current. Based on the analysis of experimental data and the observation of fulgurate, it is found that the reason for the dispersion of the dielectric recovery strength of the fuse under overload current is the uneven arcing of the series-parallel narrow sections. The post arc dielectric recovery strength of the fuse at 100us was analyzed, and the results showed that the arc voltage and arcing time of the fuse were linearly related to the dielectric recovery strength. The shorter arc time and the larger arc voltage lead to the higher dielectric recovery strength.
Important Date
-
Conference Date
Nov 10
2024
toNov 13
2024
-
Nov 11 2024
Draft paper submission deadline
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Nov 19 2024
Registration deadline
Sponsored By
Xi’an Jiaotong Universit
Contact Information
Previous Conferences
-
2022-11-24 Bangladesh Dhaka
2022 International Conference on Energy and Power Engineering -
2019-03-14 Bangladesh
2019 International Conference on Energy and Power Engineering
