Abstract
Currently, in order to ensure the required fault-proof level of technological processes in agricultural production, the following strategies among the main ones: afterfailure, planned systematic and a mixed electrical equipment maintenance and repair strategy. The pervasion of information technology in this segment was not widespread. Application of information technologies in conjunction with implementation of risk-oriented strategy is one of the promising directions of electrical equipment maintenance optimization, yet requires adaptation to sectoral characteristics of agricultural production. The article describes the problem of determining the optimal conditions for adjusting the frequency of maintenance and repair of electrical equipment on the basis of risk-oriented approach. To solve this problem, the equation of annual costs for maintenance and repair of electrical equipment was drawn up taking into account the parameter of its failure risk. The relationship between the change of relative risk and the service frequency was established; based on it, the ranges of frequency adjustment of maintenance and ongoing repair were determined.
Highlights
Maintenance of complex technical systems involving many electrified processes must be arranged in such a way as to minimize the amount of maintenance and routine repairs (M and RR), and material and equipment costs, while maintaining high reliability of systems and minimizing process damage [1]
The basis is the comparative method of research, which compares two electric motors with similar parameters and process characteristics, which are operating on similar technological processes
For the application problem solving of the periodicity adjustment, let us consider two electric motors of the same brand and with the same process characteristics, which provide the realization of similar technological processes
Summary
Maintenance of complex technical systems involving many electrified processes must be arranged in such a way as to minimize the amount of maintenance and routine repairs (M and RR), and material and equipment costs, while maintaining high reliability of systems and minimizing process damage [1]. Existing standards for the maintenance of electrical equipment in agriculture mostly do not consider the problems of service frequency optimization [4], and should be subject to adjustment. Frequency adjustment issues have been raised in studies, for example [6,71,15], but have generally considered damage and maintenance costs indicators, or estimates of current technical condition by control of established diagnostic parameters. In the study [9], the aggregate estimate of these indicators made it possible to conclude that objects - in our case, electrical equipment with a high degree of risk, - need to be serviced more often than the ones with a low degree
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