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一、总论在水电建设中,特别是在有压力引水道的引水式水电站的建设中,往往需要修建调压设备。修建调压室除了减少压力水道的水锤以外,还能减少发电机的飞轮转矩。当负荷丢弃时所需的飞轮转矩值可按下式确定: [GD~2]=365T_s·N·f/n~2(2β+β~2)……(TM~2)………(1)式中T_s—水轮机导水翼关闭时间,以秒计; N—水轮机出力,以瓩计; n—每分钟水轮机正常转数;
I. General In hydropower construction, especially in the construction of diversion hydropower stations with pressure channels, it is often necessary to construct pressure regulating equipment. In addition to reducing the water hammer in the pressure waterway, building a surge chamber can also reduce the flywheel torque of the generator. The flywheel torque value required when the load is discarded can be determined as follows: [GD ~ 2] = 365T_s · N · f / n ~ 2 (2β + β ~ 2) (TM ~ 2) 1) where T_s-water turbine wing closing time, in seconds; N-turbine output, in terms of;; n-turbine revolutions per minute;