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阐述某抽水蓄能电站机组调速器控制单元和转速信号器的测频回路,针对3起过速信号误动导致跳机事件,优化调速器测频回路的可靠性措施,实施后杜绝了此类频发事件。
A frequency measurement circuit of the governor control unit and speed annunciator of a pumped storage power plant is described. According to the accidental trip of three speeding signals and the reliability measures of the frequency-measuring circuit of the speed governor, Such frequent events.