Field tests were carried out and the pressure rise, speed rise and the turbine gate opening were measured during load rejections. The Characteristics of safety membranes is analysed.

进行了现场甩负荷试验，实测了蜗壳压力、机组转速升高、导叶开度的变化过程，分析了爆破膜的工作特性。

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To decrease the leakage of full closed wicket gate of reaction turbine is an important subject of improving the constructional characteristic of water turbine.

减少反击式水轮机导叶全关后的漏水量是改善水轮机结构性能的重要课题之一。

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It is highly important to the efficiency guide line of the whole hydraulic equipment unit and to the unit runs safety and steadily that the wicket gate end clearance of the hydraulic turbine.

水轮机的导叶端面间隙对整个水轮发电机组的效率指标及安全稳定运行有着重要影响。

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