导水叶力矩具有自关闭特性，对机组防飞逸具有较好的效果。
The force moment of guiding water blade has self close function, which can effectively protect the runaway of generating unit.
研究了水电站过速试验中机组转速升高的影响因素，着重从模型机组飞逸特性曲线及机组转动惯量两方面分析。
This paper investigates the influencing factors of speed rise of power unit in the over-speed test of hydropower station.
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