Design&Realization Of Guandi Power Station Generator Main Protection

As the Guandi generator have huge capacity,expensive price, complex structure,the event of a failure, will cause enormous direct and indirect economic losses, it’snecessary to deeply analysis the design of the generator main protection scheme.This paper explores the developments and innovative achievements in the fieldof microprocess-based protection of large scale generators at home and abroad,analyzes the causes and types of the faults. Based on the simulation calculation on allpotential internal faults of the power generators in Guandi Power Station, use themethod of fuzzy mathematics,the author analyzes4kinds of branch grouping andcorresponding main protection configuration scheme. Based on the comparison, thepaper concludes with a general configuration plan for the main protection of thepower generators in Guandi Power Station. It’s a reference to design the mainprotection sheme for many domestic giant hydraulic.This paper analyzes the realization of main protection plan of the powergenerators in Guandi Power Station in terms of the performance characteristics of theprotection device, the principle of differential protection,the specific settingcalculation for generators protection and the appraisal to the on-site operation of theprotection device.