Some characteristics of the installation of mechanical equipment at the Lower Kama and Cheboksary hydroelectric stations

Conclusions

• 1. Designing of the mechanical equipment simultaneously with designing of the structure (at early stages) permitted maximum unification of equipment, its use at the two stations, and realization of a number of original designs, which accelerated the construction of the hydrostation and effected a considerable economy.

• 2. Designing of the mechanical equipment of the construction period should be performed simultaneously with designing of the main equipment of the hydrostation, which makes possible its maximum use and eliminates the manufacture of structural elements for the construction period, which saves metal and reduces the construction time.

• 3. The use of identical reinforced-concrete blocks of embedded parts permits manufacturing concrete-encased blocks at one facility for two and more structures or using the freed equipment, including jigs, at a newly begun construction object.

• 4. The use of special cylindrical plugs for closing draft-tube cones effects a considerable economy compared with closing the intake openings to the units by gates.