贯流式水轮发电机集电环短路原因分析及改善措施  

The Tubular Turbine Generator Collecting Rings Short Circuit's Reason Analysis and the Developing Measurements

作　　者：李阳桂 

机构地区：[1]广东省英德市白石窑水电厂,广东英德513000

出　　处：《水力发电》2006年第3期54-55,共2页Water Power

摘　　要：白石窑水电厂1～4号发电机组在投运初期,集电环曾多次出现绝缘降低甚至短路的非正常现象。通过分析,引发故障的原因主要是碳刷架、集电环绝缘结构设计欠妥、运行环境恶劣以及机组的振动过大。针对上述原因,改进了绝缘结构设计上的不足,加强巡视和维护检查,装设工业电视监控,加装碳粉回收装置,对受油器进行防漏油或喷油技术处理,加强清污力度、提高发电水头以便减少机组振动,从内外因加以防范和改善后,问题得到了标本兼治,取得了理想的效果。In the early years of Baishiyao water power plant put into use, The 1-4#tubular turbines whose collecting rings appeared abnormal phenomenon of insulation lower even short circuit. According to the analysis. The reason that caused the breakdown mainly came from the carbon brush ,the unthinking insulating structure design, the bad working environment and too much vibration. Aiming at the reason, we improved the shortage of the structure design, strengthened the tour and the check, fixed the industry television, added the carbon powder recovery device, dealt with the oil machine to prevent the spraying and leaking out oil, strengthened clearing the dirt, raised the level of water ,slowed the electricity vibration. After the development and prevention, the problem was completely solved, and ideal result was obtained.

关 键 词：集电环 绝缘降低 机组振动 白石窑水电站 

分 类 号：TM312[电气工程—电机]