Some causes leading to shifts' failure of electric centrifugal pumps units
The paper systemizes basic types of wreckages and their causes. Torque vibrations of electric centrifugal pumps units and their effect on fatigue breakdown are considered. Some results of shafts testing for torque vibrations and fatigue breakdown are given. A number of measures aimed at decreasing of probable wreckage while putting into operational mode and during electric centrifugal pumps units operation are recommended.