针对国内外规范对导叶开启时间的不同规定，结合理论推导和数值计算实例，分析了不同的导叶开启时间对水电站过渡过程的影响。
The effect of wicket opening time for water turbine on the transient process of hydropower station was studied by theoretical analysis and numerical calculation.
计算结果显示，在贯流泵站起动过程中，闸门开启延时时间以及闸门开启速度对起动过渡过程均有明显影响。
The results show that, in the tubular pump start the process, the delay time of opening gate and the speed of the starting gate are significant influence the transition process.
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