Complex full-scale tests of hydroelectric units at the Dnester power plant

Conclusions

• 1. The plant manufacturer's power and efficiency guarantees are fulfilled.

• 2. The power performance curves obtained for the hydraulic unit at four heads make it possible to select the makeup of operating units that will deliver maximum economy with the load distributed between the units.

• 3. In operating the hydraulic units, special attention should be given to adjustment of the combiner curves in connection with the fact that its mismatch downgrades not only the economy of the hydraulic-turbine operation, but also the vibrational state of the hydraulic unit.

• 4. Measurements of the vibration levels of the hydraulic units under several heads made it possible to determine the boundary line with respect to power over the entire range of operating heads.