TRANSFORMER DEVICE

PROBLEM TO BE SOLVED: To improve the working efficiency of the assembly work and maintenance work for a transformer device.SOLUTION: A transformer device includes a plurality of transformers 2a and 2b, a plurality of electric apparatuses connected to the transformers 2a and 2b, a plurality of transformer housing bodies 1a and 1b for housing the transformers 2a and 2b, and an electric apparatus housing body for housing the electric apparatuses. In the transformer housing bodies 1a and 1b, passage openings 20 in which a worker can pass are formed and movable doors 10a and 10b which can close the passage openings 20 and which can move are included. When the adjacent transformer housing bodies 1a and 1b are connected to each other, the movable doors 10a and 10b which close the adjacent passage openings 20 move, and form the passage openings 20 so that they communicate with each other.