تاثير انحراف الجهد على عمل المحركات الكهربائية التحريضية

The use of electrical devices and equipment with nonlinear characteristics is increasing along with the variety and difference of investors. The equipment is fed by complicated electrical distribution networks containing cables, aerial lines, converters (or transformers) and electric devices. All this causes disturbance in the electrical feeding system resulting from the deflection of voltage frequency and non-stability of both voltage and current. In this research, we have studied one of the factors of the electrical power quality, which results from the effect of voltage deflection on the inductive motors work and the manner of the reactive capacity consumption change with the deflection of voltage negatively and positively. In addition, the mode of actual loss change has also been explained by the voltage deflection and its effect on the period of the service of inductive motors, which have a wide diffusion in all the fields of life. If this problem is not taken into account seriously, the national economy will suffer heavy losses. This is the point that has been the subject of discussion.