About optimum value of some parameters at designing of electric supply of a coal mines section

Abstract

As it is known, the load of downhole electric motors has a sharply variable character. When calculating the cable network should be based on the maximum performance of downhole machines and mechanisms. Therefore, the choice of the mode of calculation of the sectional cable network is especially important. For this purpose it is necessary to know the required voltage at different modes of operation of the main engine, which in the conditions of the coal mine site is the engine of the shearer or shearer machine.