Insulation technology of transmission cable terminal for CSNS/RCS extraction pulsed power supply system

Zhai Jun; Shen Li; Li Haibo; Zhou Guozhong

doi:10.11884/HPLPB201729.160489

Volume 29 Issue 07

Jul. 2017

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Article Navigation > High Power Laser and Particle Beams > 2017 > 29(07): 075104

Zhang Manzhou, Wang Kun, Zhang Qinglei, et al. Compensations of double elliptical polarization undulator effects on the SSRF storage ring[J]. High Power Laser and Particle Beams, 2017, 29: 075103. doi: 10.11884/HPLPB201729.170014

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Zhai Jun, Shen Li, Li Haibo, et al. Insulation technology of transmission cable terminal for CSNS/RCS extraction pulsed power supply system[J]. High Power Laser and Particle Beams, 2017, 29: 075104. doi: 10.11884/HPLPB201729.160489

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Insulation technology of transmission cable terminal for CSNS/RCS extraction pulsed power supply system

doi: 10.11884/HPLPB201729.160489

Zhai Jun^{1,2
,
,},
Shen Li^1,2,
Li Haibo^1,2,
Zhou Guozhong^1,2

1.
Institute of High Energy Physics,China Academy of Sciences,Beijing 100049,China;
2.
Dongguan Neutron Science Center,Dongguan 523803,China

Received Date: 2016-10-12
Rev Recd Date: 2017-02-25
Publish Date: 2017-07-15

Abstract

Abstract

By observing and analyzing the sparking and breaking down of the high-voltage cable socket of the pulsed power supply during the 72 hours conditioning experiment, the electrical field distribution equivalent circuit of the terminal of the high-voltage cable was built, the formula of the potential difference from the cable-terminal to the metal shielding layer was conducted. The reason of breakdown is analyzed theoretically in this paper. It is suggested that the un-chamfered insulation of the cable-terminal causes space charge focusing, which then results in a temperature increase leading to the high-voltage cable socket breakdown. The theoretical analysis is proved by the position of the breakdown hole of the high-voltage cable socket. The handling method of insulation of the cable terminal is presented, which was validated by continuous conditioning experiment for 72 hours.

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