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ULTRASONIC TECHNIQUE FOR ASSESSMENT OF THE RIM TIGHTNESS OF HYDRO GENERATOR ROTOR

机译:用于评估水电发电机转子轮辋密封性的超声波技术

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摘要

At the hydroelectric unit No. 11 of the Nizhnekamsk hydroelectric power plant, the filling wedges of a rotor were investigated by ultrasound in the free state, after “cold” tight shrinking, after “hot” tight shrinking, and after 3000 and 8000 hours of operation. The ability to evaluate the rim tightness of the rotor based on data on the redistribution of compression efforts in the wedges is demonstrated.
机译:在Nizhnekamsk水电站的第11号水电单元11号,通过超声在自由状态下进行转子的灌装楔,在“冷”紧缩后,“热”紧缩缩小后,3000和8000小时后手术。证明了基于关于楔形楔中的压缩力的重新分配的数据评估转子的轮辋紧密性的能力。

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