D. I. Khvalin
Institute for Safety Problems of Nuclear Power Plants, NAS of Ukraine, 12, Lysogirska st., Kyiv, 03028, Ukraine
DOI: doi.org/10.31717/2311-8253.24.1.2
Abstract
It is shown that the number of damages of turbogenerators on the Ukrainian nuclear power plants units increased due to the end or approach to the end of their operation life. In addition, some of these generators are operating in maneuverable conditions that negatively affect their technical state. The most unreliable design has been determined according to the statistics for the powerful turbogenerators operation at nuclear power plants in Ukraine and abroad. The main reasons for the falling work of turbogenerators on the Ukrainian nuclear power plants units and possible ways to improve their reliability, safety and operation efficiency are also shown. Ensuring stable operation of generators is possible under conditions of a significant increase in the volume of diagnostics with a simultaneous reduction in the terms of interdiagnostic period, as well as through the use of additional effective methods and means for diagnosing their technical state directly during operation. Diagnostics and control of the real state of power equipment are becoming almost the only measures that allow reducing the number of emergency shutdowns and avoiding accidents with heavy consequences as much as possible, and also increasing the economic efficiency of electricity generation. An important direction in solving the problem of technical renewal in the electric power industry together with the comprehensive replacement of equipment with a new one, is to ensure reliable and efficient operation of turbogenerators with their modernization based on the latest achievements of science and technology to increase technical and economic indices, as well as the extension of the total resource.
Keywords: powerful turbogenerator, nuclear power plant, technical state, construction, safety, reliability, efficiency
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