PURPOSE: A 3D clamp design system for a transformer is provided to improve the quality of a transformer clamp by improving design productivity and reducing design errors. CONSTITUTION: A processing terminal(1) includes a clamp design program, calculates a main component strength, performs a computing inquiry of input data which is inputted when in a design program execution state, and executes an interlinking program of a device connected with a computer network according to a design variable in order to design a master model. A data server is connected with the processing terminal through the computer network and stores programs and data for clamp design. The processing terminal generates a drawing and a material table according to the design result to store the same in the data server. [Reference numerals] (11) Key unit; (12) Mouse; (13) Communication unit; (14) Data processing unit; (15) Memory; (16) Monitor
