Estudio de la factibilidad para el mejoramiento de la calidad de energía eléctrica en la planta industrial Inducuerdas

Abstract

This is a technical study of the electric installations belonging to the industrial plant INDucUERDAS which is located in Guano, Chimborazo. This is in order to determine problems that affect the company and to present possible solutions to them. When checking and verifying the installations with FLUKE 435, some data were registered and they were analyzed by using CONELEC 004-01 regulation. The following was determined: concerning voltage variation level, it could be observed that 100% of the information does not exceed 10% of the nominal voltage this complies with the regulations. There are tension and current fluctuations because of load imbalance. Flickers reach 0,433 which is a value lower than its limit 1. The voltage harmonics have 3,39% THD which is lower than the limit of 8. The power factor average is 0,65 and its minimal limit is 0,92 showing inconsistence with the regulation. The current harmonics were analyzed by applying the regulation IEEE-519-1992. They showed distortion of 21,94% over its limit which is 15%. The following solutions are proposed: power factor correction to 0,98 by implementing an automatic capacitor bank of 13,5KvAr, resolution (1-1:1), 4,5KvAr each; voltage harmonic attenuation of current by implementing an active filter Accusine pcs, condenser protection through a rejection filter, and a balanced distribution of single phase loads among three phases. The presented proposals will allow reducing the following: current intensity and loss in conductors and transformers optimizing this way its efficiency and guaranteeing the correct functioning of processes and equipment. It will improve power quality in the plant. The profit analysis of the Project shows the present proposal is feasible to implement.