Evaluation of Technical Damage Caused by Failures of Electric Motors

Abstract

Emergent failures of electric motor impair economic damage comprising its technological and technical components. The first one is associated with underproduction of livestock goods while the second includes expenditures for replacement of electric motor. Evaluation of the technical component of the economic damage caused by failures of electric motors having various capacities and installed in driving assemblies of technological equipment in livestock production has been made. Dependences of technical damage on the price and lifespan of failed electric motor have been obtained, based on the results of estimations. Failures of electric motors in equipment of livestock farms cause interruptions in technological processes leading to material damage. The extent of the damage is particularly high at remote agricultural enterprises characterized by substantial dispersion of dairy and fattening farms in which case prompt illumination of electric motor failure is not an easy task. Therefore, time-outs may appear unacceptably long. The major factors affecting the effectiveness indicators of electric motors use in agricultural production that ensure the reduction of failure rate and time to recover have been specified. Results of this work will enable to estimate the technical component of economic damage associated with failures of electric motors, to define the extent of economical responsibility of the applied electric equipment, to make more specific schedules of preventive maintenance and repair and to correct them, as well as to find room for improvement of operation effectiveness of energy services at agricultural enterprises.