Electrical tree initiation characteristics under repetitive rate pulse in epoxy resin

Wenmin, 欧阳文敏 Ouyang; Jue, 王珏 Wang; Dongdong, 张东东 Zhang; Wei, 张伟 Zhang; Ping, 严萍 Yan

doi:10.3788/hplpb20102206.1378

强激光与粒子束

2010

DOI: 10.3788/hplpb20102206.1378

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Electrical tree initiation characteristics under repetitive rate pulse in epoxy resin

欧阳文敏 Ouyang Wenmin¹,

王珏 Wang Jue²,

张东东 Zhang Dongdong³

et al.

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An investigation into the cumulative breakdown process of polymethylmethacrylate in quasi-uniform electric field under nanosecond pulses

Zhao

Zhang

et al. 2013

Physics of Plasmas

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A group of complete images on the discharge channel developed in PMMA in quasi-uniform electric field under nanosecond pulses are observed with an on-line transmission microscope. The characteristics of the cumulative breakdown process are also generalized, which include initiating from the vicinity of the cathode, developing to the anode with a branch-like shape, and taking on a wormhole appearance when final breakdown occurs. The concluded characteristics are explained by referring to the conceptions of “low density domain” and “free radical” and considering the initial discharge channel as a virtual needle. The characteristics are helpful for designers to enhance the lifetime of insulators employed on a nanosecond time scale.

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An investigation into the cumulative breakdown process of polymethylmethacrylate in quasi-uniform electric field under nanosecond pulses

Zhao

Zhang

et al. 2013

Physics of Plasmas

View full text Add to dashboard Cite

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Degradation of cross linked polystyrene by repetitive impulse surface flashovers in vacuum

Wang

et al. 2013

IEEE Trans. Dielect. Electr. Insul.

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Phenomena on cumulative breakdown process of organic glass under microsecond pulses-comparison and basic understanding

Zhao

2018

IEEE Trans. Dielect. Electr. Insul.

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Electrical tree initiation characteristics under repetitive rate pulse in epoxy resin

Cited by 3 publications

References 0 publications

An investigation into the cumulative breakdown process of polymethylmethacrylate in quasi-uniform electric field under nanosecond pulses

An investigation into the cumulative breakdown process of polymethylmethacrylate in quasi-uniform electric field under nanosecond pulses

Degradation of cross linked polystyrene by repetitive impulse surface flashovers in vacuum

Phenomena on cumulative breakdown process of organic glass under microsecond pulses-comparison and basic understanding

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