OALib Journal期刊
ISSN: 2333-9721
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发电机转子匝间短路故障判断
, PP. 136-138
Keywords: 燃气联合循环,发电机,匝间短路,交流阻抗试验,故障判断
Abstract:
针对390h型燃气联合循环发电机转子因绝缘纸移位造成匝间短路的故障,进行了交流阻抗试验,并辅以发电机势流比、励磁电流、振动等运行参数变化趋势的分析,监视故障变化动态。结果表明,对于发电机转子因绝缘子移位的匝间故障,通过以交流阻抗试验为主,多种方法综合判断,在交流阻抗值最高下降达30%时,能够及时掌握故障变化情况,以实现二班制运行及检修统筹。
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