UNICOM/ENDE TRANSMISIÓN: ENDE TRANSMISSION IMPLEMENTS STATE -OF -THE -ART PROTECTIVE EQUIPMENT ON THE PUNUTUMA TRANSMISSION LINE – LAS CARRERAS In order to improve the location of failures in the electric power lines, in the transmission, a subsidiary of Ende Corporation, “it made the change of differential relays (protection equipment) of the Punutuma transmission line – […]
UNICOM/ENDE TRANSMISIÓN: ENDE TRANSMISSION IMPLEMENTS STATE -OF -THE -ART PROTECTIVE EQUIPMENT ON THE PUNUTUMA TRANSMISSION LINE – LAS CARRERAS
In order to improve the location of failures in the electric power lines, in the transmission, a subsidiary of Ende Corporation, “it made the change of differential relays (protection equipment) of the Punutuma transmission line – the races, by relaysLast generation line differentials with failure location by the traveling wave method.Which implied substantial modifications to the control and protection circuits, the change of satellite watches and modifications to the telecommunications system so that the relays communicate between substations, ”said the general manager of the company, Ing. Filiberto Soto Encinas.
Currently, “the local -wavefall location technology is the most accuracy for the location of failures in transmission lines, this technology detects an electrical pulse that is generated at the beginning of the fault.This transitory moves to each end of the line at a speed close to the speed of light.The teams of both extremes detect the arrival time of the transient wave and translate it with a lot of precision at a distance in kilometers, ”added Ing. Soto.
The Punutuma – the races transmission line have 181 kilometers in length, in addition to having areas in which access to towers is quite difficult due to the geographical characteristics of the land, so it is essential to have a method of calculation of distance fromprecise and reliable failures, such as the one that has just been installed.
The transmission lines are the most susceptible components to fail in a power system, since they extend to hundreds of kilometers and are exposed to different climatic conditions (atmospheric discharges, wind, rain, snow, among others), so thatIt is common that they suffer failures in times in which the conditions are severe.“A failure in a transmission line can damage the insulators that hold drivers, so they must be inspected after a failure.To facilitate the inspection of damaged insulators, the protection relays calculate the failure distance from the substation in which they are installed to the failure and thus the assigned personnel can move to the structure that suffered the damage and perform inspection tasksand corrective maintenance, ”the manager culminated.
