IMPROVING THE ENERGY EFFICIENCY OF SOCIAL-CULTURAL AND DOMESTIC OBJECTS ON THE BASIS OF SYSTEM MODERNIZATION THEIR HEAT SUPPLY, WATER SUPPLY AND LIGHTING
Abstract
The features of the reactive power compensation in electricity supply systems of cities that take into account the low level of correlation graphs of voltage and reactive power as well as a high level of higher harmonics in the network caused by the presence of a large number of electrical receivers with nonlinear characteristics (discharge and LED light sources, valve converter, electromagnetic devices etc) combined with a significant level of nonsymmetry. To take into account all the components of reactive power, resulting reactive power in urban electrical networks is presented in the form of the geometric sum of the reactive power shift, distortion and nonsymmetry. To assess the effect of reactive power shift was first given its quantification and a geometric interpretation. To solve the problem of reactive power compensation under these conditions developed a set of methods and technical means ensuring the implementation of the main provisions.Keywords: a reactive-power, lighting networks, the crooked currents, the crooked voltage, nonsymmetry, discharge lapms, resulting reactive power.
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