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1. 发明授权

US4477692A High voltage terminal bushing for electrical apparatus 失效
标题翻译：电器用高压端子套管
公开(公告)号：US4477692A
公开(公告)日：1984-10-16
申请号：US285646
申请日：1981-07-21
申请人： Robert H. Brealey
发明人： Robert H. Brealey
IPC分类号： H01B17/26 , H01B17/42
CPC分类号： H01B17/26 , H01B17/42
摘要： This high-voltage terminal bushing comprises a tubular shell of electrical insulating material having a passageway extending between its ends and an electrical conductor within the passageway that has an external surface spaced from the internal surface of the passageway. The external surface of the conductor is covered with a thin coating of insulating material spaced from the internal surface of the passageway by a cylindrical air gap. The coating has sufficient dielectric strength to prevent any corona streamers from the conductor from impinging against said internal surface at impulse voltages up to the rated impulse insulation level of the bushing.
摘要翻译：该高压端子衬套包括电绝缘材料的管状壳体，其具有在其端部之间延伸的通道和通道内的电导体，其具有与通道的内表面间隔开的外表面。导体的外表面覆盖有通过圆柱形气隙与通道内表面隔开的绝缘材料的薄涂层。涂层具有足够的介电强度，以防止来自导体的任何电晕拖缆以高达套管的额定冲击绝缘水平的冲击电压撞击所述内表面。

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