Current scenario is modern existence and distribution system that is loaded heavily. Also, it altered a lot due to marvelous surge on distribution system load, surge in renewable supply group, accumulation of solar power systems by residential, manufacturing patrons and production of bulky rechargeable stations. Study on voltage stability distinguished based on distribution system is increasing demand. At some extent, an unintentional line outage puts the system security and reliability in kept under hazard. In this manuscript, the main focus is working on contingency analysis in standard 15 bus system Radial Distribution System. An algorithm shows that forecast the setting and quantity of capacity reduce the development of voltage stability in distribution system. Then, the proposed method is executed on a standard 15 bus system Radial Distribution System and effects indicates that voltage stability of the system enhanced along execution of above method uses DSTATCOM and it is implemented in MATLAB.