Factors Influencing Reliability of Large Generators for Nuclear power Plants

Nuclear power plants are rapidly assuming a major role in supplying the world´s increasing demand for electric power. The saturated steam conditions of light-water reactors favor the use of 1500 or 1800 r/min turbines with four-pole generators which are already being built in ratings up to and even exceeding 1500 MVA. Recent developments in gas-cooled reactors give rise to an additional need for 3600 r/min turbines with large two-pole generators.