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公开(公告)号：US3746870A
公开(公告)日：1973-07-17
申请号：US3746870D
申请日：1970-12-21
申请人： GEN ELECTRIC
发明人： DEMAREST D
CPC分类号： G02B6/4295 , G02B6/4417 , H01H33/423
摘要： A coating having uniform resistive properties is applied to the surface of a light-transmitting fiber or conduit which is supported by the wall of an insulating enclosure between regions of substantially different potentials. The same coating also covers the exterior surface of the supporting wall. Electrical discharge along the conduit surface, resulting from the breaking down of surface resistivity between localized areas of differing potential, is prevented by the presence of the coating which provides a resistive surface while allowing charge mobility sufficient to neutralize adjacent areas of differing potential.
摘要翻译： 具有均匀电阻特性的涂层被施加到透光纤维或导管的表面，所述透光纤维或导管由绝缘外壳的壁在基本上不同的电位的区域之间支撑。 相同的涂层还覆盖支撑壁的外表面。 通过存在提供电阻表面同时允许电荷迁移率足以中和不同电位的相邻区域的涂层来防止由不同电势的局部区域之间的表面电阻率的分解导致的导管表面的电放电。
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公开(公告)号：US3848175A
公开(公告)日：1974-11-12
申请号：US40921073
申请日：1973-10-24
申请人： GEN ELECTRIC
发明人： DEMAREST D
CPC分类号： H02M7/7575 , Y02E60/60
摘要： A high-voltage converter comprises a plurality of electric valves interconnected in a bridge configuration between a-c and d-c electric power conductors and means for cyclically firing the valves in a normal sequence. To stop the converter its firing means is blocked, and for subsequently restarting the converter, starting means is operative to disable the blocking means. Means is provided for inhibiting such operation of the starting means if the magnitude of voltage across the a-c conductors is under a predetermined limit or if the magnitude of current in the d-c conductors is over a predetermined limit, thereby avoiding restarts under conditions which are likely to result in an immediate commutation failure.
摘要翻译： 高电压转换器包括以a-c和d-c电力导体之间的桥接配置互连的多个电动阀和用于以正常顺序循环地点燃阀的装置。 为了停止转换器，其触发装置被阻塞，并且为了随后重新启动转换器，启动装置用于禁用阻塞装置。 如果交流导体两端的电压大小在规定的极限以下，或直流导体的电流大小超过规定的极限，则可以抑制启动装置的动作，从而避免在可能 导致立即换向失败。
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