三里坪水电站发电机定子铁芯磁化试验

为保证三里坪水电站发电机组的安全运行,在发电机定子铁芯组装完成后,采用在铁芯上缠绕励磁绕组并通入一定的交流电,使铁芯发热、温度升高,从而找出过热点的方法,对定子铁芯硅钢片的制造和现场安装质量进行了试验检测。结果表明:定子铁芯的制造和现场安装质量满足设计要求。详细介绍了试验过程。可供同类工程参考。

芭蕉河一级水电站机组事故的教训

芭蕉河一级水电站1台机组启动试验时发生事故,有块钢板进入转轮室,介绍事故损失情况及汲取教训,启动试验必须做好各项检查,确保启动安全。

MEASUREMENTS AT ROOM TEMPERATURE OF THE BROWNIAN NOISE AND PARAMETERS IN A 1300 kg GRAVITATIONAL WAVE (GW) ANTENNA IN BEIJING

Ⅰ. INTRODUCTION In 1979 we made an experiment with a 146 kg GW antenna to research the method of gluing and fixing of piezoelectric ceramics and increase the coupling coefficient β of the antenna-transducer, In recent years, on the basis of the previous experiment we measured the parameters and Brownian noise of a 1300 kg Weber-type antenna which will run in coincidence with the GW antenna of Zhongshan University.