FIELD: electrical engineering; manufacture of gas-cooled electrical machines. SUBSTANCE: gascooled turbogenerator has frame 1 of stator 2, rotor 3, and turbo- expander incorporating nozzle cascade 4 with converging-diverging nozzles 5, and running cascade 6 mounted on shaft 7 of rotor 3. Energy and resource conservation is ensured in turbogenerator manufacture and operation. EFFECT: enhanced operating reliability of turbogenerator. 1 dwg
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