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Power workers should have a clear understanding of power equipment -- dry type transformer: dry type transformer is a common transformer widely used in urban and rural power grids. It has a series of advantages such as low cost, full function, convenient maintenance and construction, and is the main power equipment of the current power grid. Based on the practical experience, this paper puts forward the key points of the dry-type transformer in the transportation, storage and inspection work, and discusses the installation, debugging and maintenance of the dry-type transformer technically, hoping to improve the related technical work of the dry-type transformer and ensure the realization of the dry-type transformer's power network functions.