IMPROVEMENT OF REGULATORY APPROACHES TO TECHNICAL DIAGNOSTICS OF NPP POWER EQUIPMENT
Abstract
DOI: https://doi.org/10.26565/2079-1747-2025-36-11
The article discusses the problem of improving regulatory approaches to technical diagnostics of power equipment at nuclear power plants, in particular the stator winding rods of TVV-1000 type turbogenerators. The relevance of the topic is due to the need to improve reliability and safety in conditions of beyond-design-basis operation of power units and the development of appropriate regulatory programmes for technical diagnostics. Based on a review of current international and domestic standards and an analysis of the latest methods of thermal and non-invasive diagnostics, the paper proposes a step-by-step regulatory programme for diagnosing cooling water consumption in the cooling system of turbogenerator stator cores, based on the use of an ultrasonic flow meter and thermal analysis algorithms. Criteria for assessing the technical condition of the bars are defined and appropriate corrective actions are proposed when deviations are detected during preventive maintenance work for power units of nuclear power plants. The results obtained can be integrated into PLiM turbine generator resource management systems.
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References
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