Failure Analysis And Retrofit Research For Failure Mode Of 210MW Generator Of Zhangze Power Plant

Following content has based the material of the research and practice of power enterprise performing great retrofit project to generator to perform the mechanism analysis to the failure mode: the loosen of end part (slot part) of stator, damage of insulator, rotor of sequence negative current, etc. through the statistical analysis to failure material of 210MW generator of zhangze power plant, and also expound the formula deducing and precaution measure of calculating sequence negative current by the method of triple-phase symmetry, and has aimed at the technical problem happened in practice to develop discussion and research, and established the working procedure and technical standard of retrofitting project. The site practice has proved it is possible to perform great project retrofit at power generation site, and quality can be guaranteed to shorten maintenance period to save a lot of cost. Have proposed a precept combined with practice for engineering technical personnel and counterparts, and it is available for use and reference.Yan Jingtao (Electrical Engineering)Directed by prof. Lu Fangcheng and senior engineer Wang Jianxin...