The Transmission Fault Detection Method Using Capacitive Properties on the Transmission Line: Case Study of South Sulawesi Power System

Protection of the transmission line has a very important role in the electric power system. The line protection relay is a component system that used to detect a fault condition on the transmission line. Overhead Lines transmission line disturbances often occur due to the touch of a tree. To find out the type of disturbance that occurs, permanent or non-permanent, and to normalize the disturbance can only be done by inspection road on the transmission line from the substation to the location of the disturbance. To ascertain the type of disturbance condition it is permanent or not permanent on the transmission line is very difficult. For this reason, a fault detector using capacitive voltage is made using the PMT Auxiliary Contact, CB Status. The results of the design show that if there is interference, the capacitive voltage is zero so that the LED lamp will off, while in a healthy phase the LED lamp will on.