Twenty-one Year Development in Turbine-Generators with Water-Cooled Stator and Rotor Windings

This paper gives an account of turbine- generators with water-cooled stator and rotor windings made by Shanghai Electrical Machinery Mfg. Works. It emphasizes especially the special features of water cooling of the rotor windings. This tckhnique, as far as we know, vas first applied by us in the world manufacturing history of turbine-generators. More than 100 units of such kind of generators are now successful in operation in the power stations of our country. The first unit has been in service for 21 years and has operated for 130,000 hours. The largest rating is of 300 MW. The paper also gives the future prospects of such a new technique. Typical operating data are given in Appendix I.