Criteria used to allocate in the seismic monitoring spectrum of HPP facilities frequencies characterizing the pressure pulsation in the waterway
O.A. Muravyov1, Doctor of tech. sciences;
P.V. Gromyko2, scientific associate
1 Moscow State University of Civil Engineering
(National Research University)
2 Seismological branch of FGBUN of the Federal Research Center Unified Geophysical Service of the
Russian Academy of Sciences
Abstract. The results of studies of spectra obtained as a result of the seismic monitoring at various points on the route of the water conveyance tract of the turbines at the SayanoShushenskaya hydroelectric power station under different operating modes of hydraulic units. It is shown how in the lowfrequency part of the spectra the oscillations associated with pressure pulsations in the spiral chamber and the suction pipe are isolated.
Key words: hydroelectric power station, seismological monitoring, oscillation spectrum, pressure oscillation, self oscillation frequency, water tow.