• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2013, Vol. 34 ›› Issue (7): 95-99.

• 发电技术 • 上一篇    下一篇

大型发电机出口断路器事故分析和处理

 

李占宝1 ,周长华1 ,王峰1 , 屈绍波1 ,王哲1,王新2,刘龙阔2,严忠2
  

  1. 1.山东电力建设第二工程公司,济南市 250100;2.山东拓能咨询有限公司,济南市 250100
  • 出版日期:2013-07-01
  • 作者简介:李占宝(1966),男,研究生,高工,从事电力工程建设管理工作,E-mail:lzb_1765@163.com; 周长华(1975),男,大本,工程师,从事电力工程建设管理工作和电力自动化研究; 王峰(1979),男,大本,工程师,从事电气调试和交接验收工作; 屈绍波(1980),男,大本,工程师,从事电气调试和交接验收工作; 王哲(1987),女,大本,从事电力工程建设管理和资料翻译工作; 王新(1979),男,大本,从事电气继电保护和调试工作; 刘龙阔(1986),男,大专,从事电气继电保护和调试工作; 严忠(1968),男,大专,电工高级技师,从事电气调试和交接试验工作,E-mail: yanzhong@163.com。

Analysis and Treatment on Circuit Breaker Fault at Generator Outlet

 

LI Zhanbao1,ZHOU Changhua1,WANG Feng1,QU Shaobo1,  WANG Zhe1, WANG Xin2,LIU Longkuo2,YAN Zhong2
  

  1. 1.Shandong Electric Power Construction No.2 Company, Jinan 250100, China; 2.Shandong Topower Engineering Consulting Co., Ltd., Jinan 250100, China
  • Online:2013-07-01

摘要:

印度卡玛朗加电厂1号机组(350 MW)在启动调试阶段进行同期并网时,发电机出口发生两相短路事故。基于保护装置的故障录波图、微机事件报文和发生事故时的信息,分析事故原因;将更换断路器后进行的主变压器检测试验、发电机断路器特性试验、发电机短路和空载特性试验、机组带负荷试验(更换发电机断路器后进行)的结果,与事故前检测试验数据比较,确认事故后主变压器、发电机的安全性、可靠性没有改变,可以投入运行;针对此次事故暴露的问题提出反事故措施。

关键词: 大型发电机, 断路器, 启动调试, 短路事故

Abstract:

During the start-up commissioning of No.1 unit (350 MW) in India Kamalanga Power Plant, two-phase short-circuit fault occurred at generator outlet during the process of synchronization. The fault causes were analyzed based on fault records, computer messages and other fault information. After the replacement of circuit breaker, the detection test for main transformer, the circuit breaker performance test, short circuit and open circuit performance test for generator, as well as the load test for units were carried out, and the results were compared with the detection test results before fault, in order to confirm that the main transformer and generator could be able to put into operation with the safety and reliability not being changed. Finally, countermeasures were proposed according to the problems exposed in the incident.

Key words: large generator, circuit breaker, start-up commissioning, short circuit fault