THE INFLUENCE OF TARIFFS ON THE ELECTRIC POWER ON THE EFFECTIVENESS OF POWER TRANSFORMERS.

Energy saving on railway transport under a market economy is one of the priorities of scientific and technical policy of Ukrzaliznytsa. A very big impact on the profitability of the transport process has the dynamics of prices growth on power sources, and, in particular, on electricity. It should be noted that the work on energy efficiency and reducing the cost of electricity, which was held on ukrainian railways during the existence of an independent Ukraine, despite a significant increase of electricity prices in recent years to keep the energy costs in total expenditures on transportation at the same level. In this paper we show that the optimal coefficients of transformers calculated by unit costs are more than optimal transformers coefficients calculated on the base of coefficient of efficiency. It's found that the optimal load factor of power transformers inversely depends on the cost of electricity and the nominal power of the transformer. Using of the rational modes of the transformers allow us to reduce the technological expenses to the electric power. [ABSTRACT FROM AUTHOR]