Development of a MV level peaking capacitor integrated capacitor voltage divider

Li Qisheng; Li Junna; Li Chu’nan; Wang Yongliang; Gong Yuhan; Liu Jian

doi:10.11884/HPLPB202436.230218

Volume 36 Issue 9

Aug. 2024

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Li Qisheng, Li Junna, Li Chu’nan, et al. Development of a MV level peaking capacitor integrated capacitor voltage divider[J]. High Power Laser and Particle Beams, 2024, 36: 095003. doi: 10.11884/HPLPB202436.230218

Citation:

Li Qisheng, Li Junna, Li Chu’nan, et al. Development of a MV level peaking capacitor integrated capacitor voltage divider[J]. High Power Laser and Particle Beams, 2024, 36: 095003. doi: 10.11884/HPLPB202436.230218

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Development of a MV level peaking capacitor integrated capacitor voltage divider

doi: 10.11884/HPLPB202436.230218

State Key Laboratory of Electrical Insulation of Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China

Received Date: 2024-03-14
Accepted Date: 2024-05-29
Rev Recd Date: 2024-05-29

Available Online: 2024-06-04

Publish Date: 2024-08-16

Abstract

Abstract

Peaking capacitors, due to their compact structure, generally use indirect measurement of the voltage they bear, and direct measurement of their voltage has always been a difficult problem to solve. To solve this problem, we developed a new type of resistance compensation type self-integrating peak capacitor integrated capacitor voltage divider based on peaking capacitors. Secondly, based on the new structure of the voltage divider, the theoretical voltage ratio of the peak capacitance integrated capacitor voltage divider was analyzed. The calculation formula for the theoretical voltage ratio and the analysis of factors affecting low-frequency response were provided, and circuit simulation verification was carried out. At the same time, square wave calibration experiments were conducted, and the partial pressure ratio and response time of the two probes were obtained, and the response time of the probes was less than 6.2 ns. In addition, to obtain a more accurate voltage ratio and verify the stability of the voltage ratio of the integrated capacitor voltage divider under normal working conditions, high-voltage online calibration experiments were conducted, and the voltage ratio of probe 1 was 11071 and probe 2 was 15148. Moreover, at higher voltage levels, the relative measurement error of the capacitive voltage divider probe is relatively small, and the voltage divider ratio has good stability.
- peaking capacitor,
- resistance compensation,
- capacitive voltage divider,
- division ratio,
- high voltage pulse

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References(19)

References

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