For analyzing the cause of fault of the American-type prefabricated substation in Hunan Province in 2017and promoting the equipment type selection and standardization design

the installation

operation fault and defect data of the 10 kV American-type prefabricated substation are investigated in the system of State Grid Corporation of China. The installation quantity

installation capacity

application scheme distribution

fault and transformer capacity of defect equipment

year of operation as well as the rule of occurrence of the parts and positions are mastered. The change and application of the American-type prefabricated substation in such aspects as structure design

operation parameters

selection of key components and processing technology after introduction to China are studied. At the same time

the technical characteristics of American-type prefabricated substation is compared and analyzed.And the technical shortcoming of 10 kV localized American-type prefabricated substation compared to that of European type American type is proposed further. Finally

the main reasons for the faults and defects of the 10 k V Americantype prefabricated substation are obtained

and the solutions of eliminating different hidden troubles are given. Moreover

the suggestions on operation and maintenance strategy of the operating equipment

subsequent equipment selection and design are given.