【摘 要】
：
众所周知,当机组在t_0瞬间丢荷后,由于调速器接力器滞动t_0始带动导叶动作,经Ts秒将导叶全关或复开至空载开度。在此过程中,导叶迅速关闭使流量及进水流向急剧变化。而因水
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众所周知,当机组在t_0瞬间丢荷后,由于调速器接力器滞动t_0始带动导叶动作,经Ts秒将导叶全关或复开至空载开度。在此过程中,导叶迅速关闭使流量及进水流向急剧变化。而因水锤作用按某一规律上升,机组效率按某一规律水头下降。过渡中瞬间t的出力N_t (图1)为:
As we all know, when the unit is thrown in an instant after t_0, due to governor relay delay t_0 guide the guide vane action, the guide vanes Ts seconds will be fully closed or reopened to no-load opening. In the process, the guide vanes closed rapidly to make the flow and influent flow change rapidly. The role of water hammer according to a certain law increases, the unit efficiency by a regular head drop. The instantaneous output t N_t (Figure 1) is:
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