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首页> 外文期刊>Russian electrical engineering >Investigation of Features of Localization of Defects of Stator Core Elastic Suspension Systems in High-Power Turbogenerators
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Investigation of Features of Localization of Defects of Stator Core Elastic Suspension Systems in High-Power Turbogenerators

机译：大功率汽轮发电机定子铁芯弹性悬架系统缺陷局部化特征研究

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摘要

In this paper, topical issues of detection of defects and assessment of the technical condition of stator core elastic suspension systems of TVV-series high-power turbogenerators by means of a specially developed instrument control method are considered. This method is based on research on the frequencies of free fluctuations arising in elements of the core suspension system when excited by shocks and pulses. Using the example of 300- MW turbogenerator data on the spatial distribution of malfunctions, the locations most subject to the appearance of defects are obtained. Statistical analysis of collected data on the damagea-bility of suspension systems that allowed factors to be revealed having the most significant effect on the location of defects is carried out. On the basis of the results of generalization and analysis of data, the local and integrated probabilistic characteristics of elastic suspension system damageabiiity are found, limits are calculated for the possible number of the defects revealed on a generator taken in isolation, the corresponding volume of repair work is determined. A practical example of use of the specified characteristics for locating suspension system defects during online diagnosis thereof is given.
机译：本文考虑了通过专门开发的仪器控制方法来检测TVV系列大功率发电机的定子铁心弹性悬架系统的缺陷和评估其技术条件的问题。该方法是基于对铁心悬架系统的元件在受到冲击和脉冲激发时产生的自由波动频率的研究。以有关故障的空间分布的300 MW汽轮发电机数据为例，获得了最容易出现缺陷的位置。对悬挂系统的损坏性进行了收集数据的统计分析，该数据可揭示出对缺陷位置影响最大的因素。根据数据的一般化和分析结果，发现弹性悬架系统损伤的局部和综合概率特征，计算出在单独产生的发电机上发现的缺陷的可能数量的极限，以及相应的维修量工作确定了。给出了使用特定特性在线诊断悬挂系统缺陷的实例。

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