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Vol. 10 (2007 year), No. 4

Veselov A.E., Nevretdinov Yu.M., Nekludov Yu.V., Karpov A.S., Yaroshevich V.V., Tokareva E.A., Senyushina L.V.
The analysis of influences of asymmetrical modes on operating conditions of hydrogenerators of the Niva HPS chain

In the paper on the example of the site Sayda bay the probabilistic scenario "Pumping well" has been analyzed. The scenario is included in the list of processes and events conditioned by human activity according to the normative document on estimation of safety radiation-dangerous object. The changes in velocity field of the flow of underground water and level of the contamination passive stable tracer on the site territory in contrast to the normal evolution scenario have been analyzed. The sensitivity coefficients on the parameter of the pumping rate from the well for the control points have been calculated.

(in Russian, стр.4, fig. 0, tables. 2, ref 5, Adobe PDF, Adobe PDF 0 Kb)

Vol. 12 (2009 year), No. 1

Nevretdinov Yu.M., Karpov A.S., Fastiy G.P.
Perfection of communication lines' protection from influence of high-voltage network currents

Electrical energy quality indexes registration results analysis has been performed on buses of a supply substation 40A of Kovdor substation group. The power system and 35 kV side load do not include electrical energy quality decreasing sources; voltage distortions control in the common connection point of several consumers are insufficient for distorting sources localization.

(in Russian, стр.5, fig. 4, tables. 1, ref 2, Adobe PDF, Adobe PDF 0 Kb)

Vol. 12 (2009 year), No. 1

Veselov A.E., Karpov A.S., Yaroshevich V.V.
Efficiency of synchronous electric motors used for reactive power generation

Analysis of electrical energy loss calculation methods has been given and the efficiency of these methods has been estimated in application to industrial enterprises. More precise procedure of loss calculation in enterprises' exterior circuit between the balance belonging boundaries and electrical energy registration points (usually power transformer outputs 6-10 kV) has been worked out. Calculation results for industrial enterprises, their technical and economic assessment have been given. It has been shown that losses' factor correction towards its decreasing gives significant economic effect.

(in Russian, стр.6, fig. 0, tables. 1, ref 6, Adobe PDF, Adobe PDF 0 Kb)