Analysis of approaches to assessing the actual condition, residual life and reliability of hydraulic turbinesN V Baydakova, A V Afonin, O I Zhelyaskova, A V Blagochinnov, A I Kovalenko and S A DanilovE3S Web Conf., 411 (2023) 01053DOI: https://doi.org/10.1051/e3sconf/202341101053