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

show abstract

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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