Judgement of a generator rotor inter-turn fault

GUO Weikang

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Judgement of a generator rotor inter-turn fault

Thermal Power Generation Vol. 43, Issue 12, Pages: 136-138(2014)

更新时间：2025-09-28

- Judgement of a generator rotor inter-turn fault
- 作者机构：
  
  福建晋江天然气发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM31
- Published：2014
- 稿件说明：
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GUO Weikang. Judgement of a generator rotor inter-turn fault[J]. Thermal Power Generation, 2014, 43(12): 136-138.
DOI：

GUO Weikang. Judgement of a generator rotor inter-turn fault[J]. Thermal Power Generation, 2014, 43(12): 136-138. DOI：

摘要

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。

Abstract

In allusion to 390 Hgas combined cycle generator rotor inter-turn short circuit fault caused by insulation paper translocation

the AC impedance test was carried out and analysis on operation parameters like the generator potential flow ratio

excitation current and vibration was conducted to monitor the fault changes.The results show that

when the AC impedance decreases to 30%(the highest decline value)

AC impedance test assisted by multiple judgement methods can realize online monitoring of the fault

thus to achieve double shift mode operation and maintenance plan.

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