在碳刷与滑环之间出现大量火花。
Plenty of sparks appeared between the carbon brushes and the slip rings.
介绍了灯泡贯流式机组滑环碳刷系统的磨损情况，分析了滑环碳刷磨损严重的危害和滑环碳刷系统磨损的原因。
Analysis of abrasion of the slip-ring carbon and brush system for bulb hydro-generating units, its great danger and the cause of this phenomenon are presented.
先拆下电动机的护罩、滑环、碳刷、刷盒、刷盒支架及短路环装置(有的电机无短路环装置)等全部零件。
Removing all parts of cover, rings, carbon brush, brush box, brush box shell and short circuit ring equipment (some motor have no short circuit ring equipment).
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