Construction of steam turbine :
1. Casing: It is made out of cast steel. The casing has rotor inside it.
2. Rotor: It carries blades or buckets.
3. Nozzle : It provides flow passage for steam where expansion of steam takes place.
4. Frame: It provides support to the rotors, stator and all other mountings. It can be integral part of stator in case of small tubines.