The operation mode of the steam turbine stage in low-steam and motor modes is considered. The features of the operation of the steam turbine stage in the motor mode are given. It is shown that the condition accepted in earlier studies of hydrodynamic processes in the turbine stage during its operation in the motor mode, that the cooling steam flows through the stage without expansion, i.e. without generating active power, is valid if the entire flow part of the turbine is under pressure in the condenser and there is no pressure drop in the stages. The conditions under which the stage operates in the ventilation mode or in the mode of generating active power are determined. The technique developed with this condition in mind allows, with known parameters before the stage and the pressure ratio before and behind the stage, to determine the operating mode of the stage.

中文翻译：

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汽轮机级在低蒸汽和电机模式下运行期间有功发电的仿真

考虑汽轮机级在低蒸汽和电机模式下的运行方式。给出了汽轮机级在电机模式下的运行特点。结果表明，早期涡轮机级在电机模式下运行期间的水动力过程研究中所接受的条件，即冷却蒸汽流过该级而不膨胀，即不产生有功功率，如果整个流动部分是有效的，则该条件是有效的。涡轮机在冷凝器中处于压力下，并且各级中没有压降。确定该级在通风模式或产生有功功率模式下运行的条件。考虑到这种情况而开发的技术允许利用已知的级前参数以及级前和级后的压力比来确定级的操作模式。