Basic reasons of drop in efficiency of the low pressure section of the K-300-240 turbine when operating in off design modes are examined. It is shown that the efficiency of the turbine is affected by steam electrization and its thermodynamic state. Maximum power drop occurs at modes when steam at the turbine exhaust is either superheated or supercooled and phase transition heat is not used. Methods of reducing losses caused by electrization and steam supercooling are offered. Constructive solutions allowing to reduce exhaust losses are considered

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https://doi.org/10.15407/scin2.06.049
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