In recent years

with the rapid development of new energy construction

especially wind power and photovoltaics

and its power generation accounts for 16% of the total electricity consumption in the society.The energy structure is developing towards cleanliness and low carbon.While the construction of new energy stations is rapidly advancing

equipment problems are increasingly diverse and complex.By analyzing the process of tripping of the main transformer of a photovoltaic new energy station

discussing the causes of its failures and putting forward corresponding measures and suggestions

it provides some reference for the construction and operation and maintenance of similar stations.