ANALYSIS OF THE IMPACT OF NETWORK OPERATION REGIMES ON THE LEVEL OF ACCOUNTING ACTIVE AND REACTIVE ELECTRICITY

Abstract

One of the reasons of losses of the electric power caused by imperfection of means of its account is revealed. The analysis of errors of means of the account of active and reactive energy in the conditions of work of a network in low-sine and low-sine modes is executed. The dependences of the angular errors of the means of measuring active and reactive energy are found. The graph of the change of the angular error of the active energy meter in the range of phase shift angles between voltage and current from -2 to 2 and the graph of the angular error of the reactive energy meter in the range of phase shift angles be-tween voltage and current from -0 degrees to are presented. The loss of active energy due to imperfection of active energy meters reaches infinity under the conditions of approaching the phase shift angle between current and voltage vectors to 2, and the loss of reactive energy reaches infinity under the conditions of approaching the phase shift between current and volt-age vectors to  are shown. The errors of active energy measurement are calculated, which indicate the unsuitability of elec-tricity meters manufactured in accordance with existing standards for metering of electricity in low-cosine modes of network operation. References 14, figures 2, tables 1.