This article is devoted to the analysis of the possible influence of impedance asymmetry on the efficiency of electricity transmission and distribution in the electricity system in Slovakia, at a voltage level of 110 kV -400 kV, using synchronic phasor monitoring results. For simplicity of calculations, in practice, the impedance imbalance from mutual interfacial inductive capacitances bonds is neglected. In this way, the 3-phase network is interpreted as symmetrical in the calculations. In this case, it is possible to determine only some components of losses (ohmic losses, corona loss, leakages, etc). The influence of impedance asymmetry can be quantified by calculation using the results of the monitoring of the synchronous phasors of selected electricity system elements (OHL, transformer, choke) or by 3-phase modelling of real system elements. frequency to test the transformer for induced over voltage test, and its characteristics is analysed.

Relevance. Providing the population with functional, environmentally friendly and high-quality food is an urgent scientific and state problem. With prolonged use of contaminated products, the risk of various diseases increases. Therefore, the human diet should consist of functional, environmentally friendly products. The main goal of this research work was the production of high-quality jam from environmentally friendly raw materials of plant origin.Methods. For the preparation of the jam, the fruits of the Sosnovsky zucchini variety and the Lada melon of the technical and biological degree of maturity were used. The technological process of making jam took place in accordance with the technological requirements for this type of product. The content of biochemical parameters: dry matter, the amount of sugars, pectin and nitrates) were determined in fresh and finished (after the fermentation period) products.Results. Jam with a melon aroma was obtained with a glucose content of 4.5-6.73%, fructose - 4.66-7.17% with an accumulation of nitrates in the range of 127.1 mg / kg (fruits of biological maturity) and 131.6 mg / kg (fruits of technical maturity), which is 3.0-3.1 times lower than the maximum permissible concentration. The tasting committee rated the jam made from fruits of technical maturity at 4.3 points, and biological at 4.8 points. Thus, summarizing the results of our research, we can conclude that the jam made from zucchini fruits with the addition of melon is a functional, high-vitamin, environmentally friendly food product with high taste.

н а у ч н о п р а к т и ч е с к и й ж у р н а л [ 76 ] о в о щ и р о с с и и № 1 (3 4) 2 0 1 7 ФИЗИОЛОГИЯ И БИОХИМИЯ РАСТЕНИЙ Санникова Т.А. 1-доктор с.-х. наук, зав. отделом хранения, стандартизации и переработки сельскохозяйственной продукции Мачулкина В.А. 1-доктор с.-х. наук, ст.н.с. отдела хранения, стандартизации и переработки сельскохозяйственной продукции Павлов Л.В. 2-доктор с.-х. наук, зав. лабораторией стандартизации, нормирования и метрологии 1 ФГБНУ «Всероссийский научно-исследовательский институт орошаемого овощеводства и бахчеводства» 416341, Россия, Астраханская обл., Камызякский р-н,

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