Analysis of Foundation Type for Half Speed Turbine Generator of LNPS
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Abstract
Turbine Generator is one of the most important electrical equipment of the main nuclear power plant, the stability of its operation directly affect the stability of the entire power system. Codes in different countries proposed different technical measures on the turbine generator foundation design, these measures have started from lower base line vibration displacement or vibration velocity. Selection of the proper foundation, smaller economies can achieve in vibration control. This paper analyzes the differences between Europe and America of its design concept, the isolation performance of the spring vibration-isolated foundation are discussed in detail, its show that the spring vibration-isolated foundation can be more suitable for the European nuclear power plant steam turbines. The high quality of spring vibration-isolated foundation in low frequency, aseismicity and adjustability is great to assure the safe operation of China first Nuclear 1 000 MW Class Half Speed Turbine Generator.
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