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热力发电  2015 

汽轮发电机定子绕组端部振动综合治理

, PP. 125-128

Keywords: qfsn-600-2型发电机,定子,绕组端部,振动,激振力,阻尼

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Abstract:

某600mw机组qfsn-600-2型发电机由于定子绕组端部振动大,导致水电接头脱焊引起短路接地故障。通过振动测试分析,判断该振动源于50hz转子机械振动通过轴承、基座传递到定子绕组端部,传递过程由于结构共振导致振动超标。对此,采取改变定子绕组端部刚度、降低激振力及加装阻尼装置等措施,将定子绕组的端部振动最大值控制在150μm以内。

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