Russijan S. Restriction the impact of switching processes on the operation of electrical mining complex plot

Object - electrotechnical complexes of technological sites of mines with mean of protection against leaks of a current on the earth during switching of power joining.The purpose - increase of efficiency of operation of electrotechnical complexes of technological sites of mines. Methods - theoretical (electrical circuit theory, theory of transients, theory of probability and statistics) and experimental (physical simulation using modern tools of electrical measurements). Novelty consists in grounding the mathematical model of an electrotechnical complex of a technological site of the mine, which differs possibility of definition of operative parametre of the device of protective switching-off at power branches taking into account set of factors of influence of switching transient, and also structure of the scheme of a measuring chain. Results - the mathematical model of an electrotechnical complex of a technological site of the mine was grounding, wich allows to perform a comprehensive study of the influence of parameters of electrotechnical complex of a technological site on the character of change of the operative parametre of the device of protection against leaks; technical solutions was suggested in the area of controlled switching of the induction motor. Industry - the coal industry of Ukraine.