Estudio técnico de la coordinación de protecciones para la máquina generadora U1 perteneciente a la Central Hidroeléctrica Sarapullo.

Abstract

Given the importance of protecting the generator of a power plant, which is one of the main elements of an Electrical Power System, the correct operation of the protection systems is required in the event of some disturbance phenomenon, so that life can be saved. and avoid large economic losses. The objective of this titling work is to corroborate the calibration of the REG 670 relay implemented in Unit 1 of the Toachi Pilatón hydroelectric project, according to the Technical Study delivered by the contractor company in charge of commissioning, said objective was fulfilled with the creation of a computational tool that allows the simulation of the different protections such as: differential protection 87G, timed overcurrent protection 51, overvoltage protection 59 and under and over frequency protection 81U/O. The computational tool created in the MATLAB software is capable of comparing the theoretical data (Technical Study) with the real data obtained in the field, being modifiable the adjustment parameters such as polarization currents, voltage limits, frequency limits, trip time (failure). This will guarantee an adequate operation of the aforementioned protections of Unit 1, which is evidenced in the results shown.