Rakan Y. Perfectionement of protection the electromechanical system of skip blast-furnace hoist at the break-down mechanical overloads

The object of study is the electromechanical system domain skip hoist. The aim is to increase the reliability and effectiveness of the protective function of the current preemptive security electromechanical systems with a domain lift from the emergency mechanical loads on the basis of sound scientific basis for the structure and parameters of the protective device. Theoretical studies were carried out using the basic tenets of the theory of the electric systems, motor control, and the theory of transients and mathematical modeling of induction machines. The theoretical value is to further develop the theoretical analysis of the conditions and mechanism of occurrence of accidents in the electromechanical system of the skip hoist domain and disadvantages of existing assets over current protection. Experimental studies in the laboratory and on the real object confirmed the effectiveness of proactive protection. The practical value lies in the justification of ways of improving the electromechanical system domain skip hoist with the implementation of a proactive function of current protection in emergency mechanical stress results of the thesis in the form of scientific studies and technical decisions handed Donetsk Metallurgical Plant, on the basis of what is made in the laboratory automation pilot version of a pre-emptive block overcurrent protection . The latter was introduced in the drive control system domain skip hoist and passed the test for a period for two months. The research results are also introduced in the educational process SHEE "Donetsk National Technical University". Areas of use - electro.