Fig.1 Heat transfer path of stator bar

Heat transfer path of stator bar

Because spread and display this picture, there is a case to look coarse.

Heat generated in indirectly cooled stator bars are transferred through conductors, ground wall insulation, core and cooling gas(Fig.1). In this heat transfer path, thermal conductivity of ground wall insulation is much lower than other components. Then high thermal conductivity insulation system, which has twice as high thermal conductivity as conventional ground insulation, was developed.

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