A good fault orientation method is not yet available in the fault diagnosis for the electric-hydraulic regulating system of a water-turbine generator set.
在目前水轮发电机组电液调节系统故障诊断方法中，还没有出现很好的故障定位方法。
The paper studies the causes for fault occurrence of drainage system and introduces the improvement scheme of drainage system and retrofitting method of drain regulating valves.
本文研究了疏水系统故障产生的原因，并介绍了疏水系统的改进方案和疏水调节阀的改造方法。
In this paper, time series bi-spectrum analysis for fault diagnosis of speed-regulating valve is proposed to study a new fault detection method for the hydraulic system.
研究液压系统的一种新的故障检测方法，利用时间序列双谱分析实现调速阀故障诊断。
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