The object in this paper to boost a 3 to 7 phase AC multiphase transformers to converted into DC power through modeling and simulation. A new technique of pure seven-phase Sine-wave of fixed current/voltage and frequency is obtained now we have also used f R-L load and motor testing purposes. Here complete modeling has been simulated by using MATLAB Software. Multi-winding transformer block was taken from the sim-power system block library and turn ratios set in the dialog box then simulated. The design and simulation presented in this paper. Seven phase transmission line system can be developed for the generation of bulk power transfer. As per need of the induction motor under a loaded condition is used for the viability of transformation system. In seven phase's, each phases shifted from the order by 51.42° (360°/7) and got the Sine-wave current/voltage. The novel scheme connection was expanded by using the modeling and simulation approach to prove the viability of the implementation and this type of transformer is required in aerospace engineering, railway engineering and automobile engineering applications.