ANALYSIS OF INTER-TURN SHORT-CIRCUIT FAULT OCCURRED IN GENERATOR'S ROTOR WINDING

ZOU Jiongbin1; ZHAO Feng2; NING Yinghui3 1.Huaneng Haimen Power Plant

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ANALYSIS OF INTER-TURN SHORT-CIRCUIT FAULT OCCURRED IN GENERATOR'S ROTOR WINDING

Thermal Power Generation Vol. 41, Issue 6, Pages: 74-76(2012)

更新时间：2025-09-28

- ANALYSIS OF INTER-TURN SHORT-CIRCUIT FAULT OCCURRED IN GENERATOR'S ROTOR WINDING
- 作者机构：
  
  1. 华能海门电厂
  2. 西安热工研究院有限公司
  3. 华能上海电力检修公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM31
- Published：2012
- 稿件说明：
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ZOU Jiongbin1, ZHAO Feng2, NING Yinghui3 1.Huaneng Haimen Power Plant. ANALYSIS OF INTER-TURN SHORT-CIRCUIT FAULT OCCURRED IN GENERATOR'S ROTOR WINDING[J]. Thermal Power Generation, 2012, 41(6): 74-76.
DOI：

ZOU Jiongbin1, ZHAO Feng2, NING Yinghui3 1.Huaneng Haimen Power Plant. ANALYSIS OF INTER-TURN SHORT-CIRCUIT FAULT OCCURRED IN GENERATOR'S ROTOR WINDING[J]. Thermal Power Generation, 2012, 41(6): 74-76. DOI：

摘要

某台1 000MW机组发电机转子交流阻抗和功率损耗偏差较大。通过对比运行中发电机的励磁电流、负序电流及振动值等相关量的变化

以及转子交流阻抗和功率损耗试验的历史值

采用两极电压平衡法和转子电压分布法进行综合分析

确认该发电机转子存有匝间短路故障

故障点为极2中的1号线圈和极1中8号线圈。

Abstract

During the time of repairing generator's rotor for 1 000 MW unit in one power plant

a larger deviation in a.c.impedance and power loss had been discovered

the variation of related parameters

such as excitation current

negative sequence current

and vibration value of the generator in operation

being compared.Through comparison historical values in a.c impedance and power loss tests of the rotor

and combined with the two-pole voltage balance method and the rotor voltage distribution method

a comprehensive analysis has been carried out

the inter-turn short-circuit fault existing in the rotor of generator being determined

the fault points being located in coil no1 of pole no2 and in coil no8 of pole no1.

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