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| 1000MW机组发电机转子绕组匝间短路故障分析 | |
| 引用本文： | 邹炯斌,赵锋,宁颖辉.1000MW机组发电机转子绕组匝间短路故障分析[J].热力发电,2012,41(6):74-76. |
| 作者姓名： | 邹炯斌 赵锋 宁颖辉 |
| 作者单位： | 1. 华能海门电厂,广东汕头,515132 2. 西安热工研究院有限公司,陕西西安,710032 3. 华能上海电力检修公司,上海,200942 |
| 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。 |
| 关 键 词： | 1000MW机组 发电机 转子 匝间短路 交流阻抗 线圈 |
ANALYSIS OF INTER- TURN SHORT- CIRCUIT FAULT OCCURRED IN GENERATOR'S ROTOR WINDING |
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| ZOU Jiongbin , ZHAO Feng , NING Yinghui.ANALYSIS OF INTER- TURN SHORT- CIRCUIT FAULT OCCURRED IN GENERATOR'S ROTOR WINDING[J].Thermal Power Generation,2012,41(6):74-76. | |
| Authors: | ZOU Jiongbin ZHAO Feng NING Yinghui |
| Affiliation: | 1.Huaneng Haimen Power Plant,Shantou 515132,Guangdong Province,PRC 2.Xi’an Thermal Power Research Institute Co Ltd,Xi’an 710032,Shaanxi Province,PRC 3.Huaneng Shanghai Electric Power Repair Copany,Shanghai 200942,PRC |
| 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. |
| Keywords: | 1 000 MW unit generator rotor inter-turn short-circuit a c impedance coil |
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