An Innovative Inductive Air-Gap Monitoring for Large Low Speed Hydro-Generators

被引：0

作者：

Simond, Jean-Jacques ^{[1
]}

Xuan, Mai Tu ^{[1
]}

Wetter, Roland ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, LME, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland

来源：

ICEM: 2008 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES, VOLS 1- 4 | 2009年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Large low speed hydro-generators (Fig. 1) have a very small specific air-gap to stator bore diameter ratio making it virtually impossible to have a perfect centering of the rotor within the stator during the assembly process. Therefore the machines are operated with an eccentricity that, though small, is not negligible, and is the cause of undesirable effects: considerable unbalanced magnetic pulls, vibrations, additional losses. It is therefore important to assess the eccentricity and even more to check its trend in case of any stator or rotor deformations in order to guarantee a safe operation and to prevent any serious damage at an early stage.

引用

页码：468 / 472

页数：5

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