FIELD: machines on base of steam screw- type machines. SUBSTANCE: steam power plant includes steam screw- type machine whose output shaft is connected with electrical machine and control system. Steam flow regulator is fitted in pipe line at inlet of steam to steam screw-type machine. Induction electric generator is used as electrical machine. Control system consists of logic unit whose inputs are connected with sensors showing critical state of units and parts of power plant; its first output is connected to switch of induction electrical machine. Two-position steam flow regulator is provided with open position retainer whose actuating member is connected to second output of logic unit of control system for unlocking the retainer by critical state signals. EFFECT: simplified construction; enhanced operational reliability. 4 cl, 3 dwg
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