STATOR END VARIABLE-CROSS-SECTION COMBINED SHIELDING STRUCTURE

The present invention relates to the field of steam turbine generators. Disclosed is a stator end variable-cross-section combined shielding structure. A stator end shielding structure and a ventilation structure are formed by a main shielding ring having an inner-edge arc variable-thickness area and a variable-thickness copper ring, such that the shielding effectiveness on a stator end can be ensured, distribution of shielding current in the shielding structure can be effectively improved, the problem of excessive concentration of the shielding current is eliminated, the shielding current is uniformly diffused in the main shielding ring and the copper ring, the phenomenon of local overheating of the shielding ring is eliminated, and the operation reliability of a generator is improved. La présente invention concerne le domaine des générateurs à turbine à vapeur. L'invention concerne une structure de blindage combinée à section transversale variable d'extrémité de stator. Une structure de blindage d'extrémité