Donetsk National Technical University
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https://ea.donntu.edu.ua/jspui/handle/123456789/23507| Title: | ОПРЕДЕЛЕНИЕ СХЕМ ВКЛЮЧЕНИЯ СЧЕТЧИКОВ ЭПЕКТРИЧЕСКОИ ЭНЕРГИИ С ЗАВИСИМЫМИ ТОКОВЫМИ ЦЕПЯМИ |
| Other Titles: | Визначення схем включення лічильників електричної енергії із залежними ланцюгами струму Definition of Layout of the Power Meter with Dependent Current Circuits |
| Authors: | КАЛЮЖНЫЙ, Д. Н. KALYUZHNIY, D. |
| Keywords: | схема включения счетчик электрической энергии векторная диаграмма вторичные измерительные цепи несимметрия напряжений несимметрия токов схема включення лічильник електричної енергіі векторна діаграма вторинні вимірювальні кола несиметрія напруг несиметрія струмів circuit connecting power meter vector diagram secondary measurement circuits asymmetry voltage asymmetry current |
| Issue Date: | 2013 |
| Publisher: | ДонНТУ |
| Citation: | Наукові праці Донецького національного технічного університету. Серія "Електротехніка і енергетика". № 2 (15), 2013 р., 338 с. |
| Series/Report no.: | Электротехника и энергетика; |
| Abstract: | В статье рассмотрен вопрос определения схем включения трех- и двухэлементньх счетчиков электрической энергии с зависимыми токовыми цепями. Определены области однозначного решения данной задачи в условиях несимметрии напряжений и токов, а также случайного изменения характера нагрузки. Предложен способ раскрьтия неопределенности определения схем включения счетчиков электрической энергии, обусловленной описанием одной векторной диаграммой нескольких различных схем их включения. |
| Description: | Power saving including the tasks of working out and improving not only technical and practical measures on reducing power consumption and loses but also measures on developing the systems of calculation and techmcal records of power is considered to be one of the most urgent problems of modem power engineering. Special attention is to be paid to revealing the errors and gaps in the schemes of connecting power meters. Traditionally solving the problem of determimng the schemes of connecting power meters is based on the analysis of vector diagrams of currents and voltages measured by means of power records or reduced using volt-ampere-phase meters on their terminals. The analysis of the existing methods of determimng the schemes of connecting power meters allowed reveal the most considerable factors influencing the efficiency of solving the task. They include: asymmetry of voltages and currents and casual character of load determined using the coefficient of active capacity cos (p or its angle (p. Besides mentioned factors the uncertainty of solving the task of determimng the schemes of connecting caused by the dependence of flowing currents in secondary circuits on their connection appears for the schemes of connecting power meters with related current circuits (ten- and six wire schemes of connecting for three- and two-element power records accordingly). The problem of circuit connecting of three- and two-element power meters with related current circuits has been considered in the article. The areas of simple solution of the problem in conditions of voltage and current asymmetry and casual change of load have been determined. A method of revealing the uncertainty of determimng the schemes of connecting power meters due to the description of several different schemes of their connecting using one vector diagram has been proposed. |
| URI: | http://ea.donntu.edu.ua/handle/123456789/23507 |
| Appears in Collections: | 2013_Випуск № 2 (15) |
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