内蒙古电力技术
內矇古電力技術
내몽고전력기술
INNER MONGOLIA ELECTRIC POWER
2014年
3期
97-100
,共4页
发电机%大轴%集电环%碳刷%绝缘套筒%玻璃丝布
髮電機%大軸%集電環%碳刷%絕緣套筒%玻璃絲佈
발전궤%대축%집전배%탄쇄%절연투통%파리사포
generator%shaft%collector ring%carbon brush%insulating sleeve%glass fiber cloth
内蒙古某电厂330 MW汽轮发电机发生烧损事故，造成发电机集电环、碳刷烧损，大轴损伤。分析事故原因是由于绝缘套筒存在质量缺陷，脱开的玻璃丝布被高速转动的转子风扇打碎后带入滑环与碳刷间，最终引发了事故。经过现场修复发电机大轴、集电环、碳刷后，发电机运行至今状况良好。同时建议有同类型发电机的发电厂，应加固发电机集电环绝缘套筒的外露部分，防止运行中绝缘套筒的玻璃丝布甩出，造成发电机事故。
內矇古某電廠330 MW汽輪髮電機髮生燒損事故，造成髮電機集電環、碳刷燒損，大軸損傷。分析事故原因是由于絕緣套筒存在質量缺陷，脫開的玻璃絲佈被高速轉動的轉子風扇打碎後帶入滑環與碳刷間，最終引髮瞭事故。經過現場脩複髮電機大軸、集電環、碳刷後，髮電機運行至今狀況良好。同時建議有同類型髮電機的髮電廠，應加固髮電機集電環絕緣套筒的外露部分，防止運行中絕緣套筒的玻璃絲佈甩齣，造成髮電機事故。
내몽고모전엄330 MW기륜발전궤발생소손사고，조성발전궤집전배、탄쇄소손，대축손상。분석사고원인시유우절연투통존재질량결함，탈개적파리사포피고속전동적전자풍선타쇄후대입활배여탄쇄간，최종인발료사고。경과현장수복발전궤대축、집전배、탄쇄후，발전궤운행지금상황량호。동시건의유동류형발전궤적발전엄，응가고발전궤집전배절연투통적외로부분，방지운행중절연투통적파리사포솔출，조성발전궤사고。
One 330 MW steam turbine generator of a power plant was damaged in Inner Mongolia, not only caused generator slip ring and carbon brush burning, but also the generator shaft damaged. Analysis the cause of the failure was due to the insulating sleeve quality defects, tripping out of glass cloth by high speed rotating rotor fan was broken and went into the slip ring and carbon brush, eventually led to the fault. Through the scene processing, repaired the generator shaft, collector ring and carbon brush. At present, the generator is running in good condition. Through the fault handling, it is suggested that there are power plants of the same kind of generator, reinforce the generator slip ring insulation sleeve.
