| Based on the structural feature and operational experience of 1000MW generat- or-trans-former unit,Internal fault in the generator and the quantitative analysis。Discus- sed some of the major features of protection ,At the same time, some key technologies are explained, including how to improves the sensitivity and reliability of internal fault protection, the method of TA saturation recognition and the inspection of generator insu- lation without excitation, etc. In order to test adaptability of the protection device in turb- ine-generator unit on the 1000MW level, dynamic tests carried out research to fully vali- date the advanced nature of the program and adaptability.Finally, Taking the 2×1000MW generator transformer set as an example, and given the configuration scheme of 1000MW unit the protection of turbo-generator , These prot- ections can be configured for other 1000MW-class protection of turbine generator confi- gured to provide a valuable reference.
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