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1. 发明授权

US3856978A Adherent coating for captivating small particles in gas-insulated electrical equipment 失效
标题翻译：用于在气体绝缘电气设备中吸收小颗粒的附着涂层
公开(公告)号：US3856978A
公开(公告)日：1974-12-24
申请号：US44458974
申请日：1974-02-21
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： SLETTEN A , COOKSON A
IPC分类号： H02B13/055 , H01B9/06 , H01H33/57 , H02B13/035 , H02G5/06 , H01B9/04
CPC分类号： H02B13/035 , H01B9/0672 , H02G5/065
摘要： This invention relates to compressed-gas-insulated systems. An adherent or sticky coating is provided on selected surface areas inside compressed-gas-insulated systems to trap, or to captivate conducting and non-conducting particles, which if allowed to remain free can promote breakdown metallic parts or electrodes maintained at different potentials, or tracking and flashover along insulating surfaces. Preferably, a coating is provided which is initially hard or solid with adequate mechanical strength so that the system components can be easily handled by workmen during manufacturing and assembly without difficulty, and not at this stage capture unwanted particles. At a later time, following assembly operations, thde surface layer of said coating is rendered adherent, or tacky to trap or to captivate conducting and non-conducting particles. During this stage mechanical means such as vibrations and/or gas flow and/or electric fields may be used to transport unwanted particles to the tacky or captivating areas. Following such captivation, the adherent, or sticky coating may be rendered hard again to trap the unwanted particles permanently. Alternatively, if desired, the coating may be rendered tacky, or captivating again during the life of the equipment to trap unwanted particles generated within or introduced into the system, thus performing a repair or reconditioning of the system. Another alternative is to maintain the coating sticky or tacky during the operating life of the electrical equipment and rendering the surface hard only during repair or maintenance operations when the system is opened and thus subject to handling and thereby large amounts of unwanted particles.
摘要翻译：本发明涉及压缩气体绝缘系统。在压缩气体绝缘系统内的选定表面区域上设置粘附或粘性涂层以捕获或吸引导电和非导电颗粒，如果允许其保持游离，可以促进分解保持在不同电位的金属部件或电极，或跟踪和沿着绝缘表面闪络。优选地，提供最初具有足够机械强度的硬或固体的涂层，使得系统部件在制造和组装期间可以容易地由工人处理而没有困难，而不是在此阶段捕获不需要的颗粒。稍后，在组装操作之后，使所述涂层的表面层粘附，或粘性以捕获或吸引导电和非导电颗粒。在这个阶段，可以使用诸如振动和/或气体流动和/或电场的机械装置将不期望的颗粒运输到粘性或迷人区域。

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