A overhaul method of a water turbine generator

摘要

The present invention relates to a repair method of a water turbine generator, which confirms a reduction rate for the power generation efficiency of the water turbine generator, determines whether to replace each component based on the reduction rate, determines whether to redesign the entire system according to a change in the size of an inlet or the size of an outlet, and performs a redesign or a partial change accordingly, thereby performing the determination of maintenance and repair ranges, maintenance and repair plans accordingly, and maintenance and repair.