Directions of perfection of design high-pressure cylinder steam turbine cogeneration family T-100-130

An overview of published materials about the directions in the design of high-pressure cylinder turbine family Т-100/120-130. Сogeneration turbines types Т-53/67-8,0, Т-113/150-12,4 designed for use as part of PSU. Turbine type Т-125/145-12,8 is designed to replace obsolete turbines Т-125/145-12,8. In the project turbine Т-125/145-12,8 for the first time (with nozzle steam distribution)is not provided the control stage camera. It is it possible to obtain in the calculations the nominal regime relative internal efficiency in the control compartment 85 % and efficiency ratio of turbine flow channel high-pressure cylinder 88 %. The use of nozzle steam distribution includes regular operation of the turbine in variable regimes.