Article

Amina K. A., Adishankara Institute of engineering and Technology ; Aryaraj B. K. ,; Sneha Antony ,; Mayuri Grace ,; Anjaly Mohanan ,

Transmission lines are the important factor of the power system. Transmission and distribution lines has good contribution in the generating unit and consumers to obtain the continuity of electric supply. Now a day in the transmission lines are ON/OFF are the major and important part in the power system. And also maintenance of the transmission line is also important part in transmission line. In the earlier system for the fault like overloading of the transmission line AB switches are used. The main disadvantage of old AB switch, is they can only operate manually. It requires man power and it has less reliability so, we are introducing automatic AB switch for the protection of overhead line against overload fault it is operated by PLC system. This AB switch can have operated remotely and no man power required on the fault location. It is more reliable and efficient than the old AB switches. The electric power system and advance devices has become a very complicated system because of re-structuring and the penetration of distributed generation and storage. In this system the automation link is made possible between the detection and the solution of problem in minimum amount of time.