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To ensure uninterrupted power supply to consumers, maintenance of the electrical networks in a working condition is today carried out through the use of a system of preventive maintenance. In the general case such a system allows building equipment repair schedules based on repair cycles for a long time predetermining the list of necessary material and labor resources in advance. However, in practice, the use of this system is rather difficult and not always effective. This is due to the need to change the repair schedule for emergency or urgent repairs taking into account the seasonality of work performed and the organizational structure of the production department of electrical networks and related departments as well as taking into account the specific features of the operation of specific equipment. Taking into account the current pace of development of electrical networks with a steady increase in the number of consumers (which also leads to a complication of the configuration of electrical networks) this is impossible without the use of appropriate mathematics and software that automates the planning processes for the maintenance and repair of electrical networks with a large number of factors. The minimum equipment downtime was taken as the main criterion for optimality, as a factor that largely determines the reliability of power supply. A planning algorithm has been developed that takes into account the ranking of works in order of importance, the possibility of their shift in time and the likely adjustment of the schedule based on the results of assessing the technical condition of the equipment. A method for minimizing the downtime of repair crews by using them in adjacent areas as well as a technique for identifying a set of equipment that may be under repair in the same period of time are proposed.


Repair schedule, reliability of power supply, downtime, rank of work, back-up team, compatibility of repairs, shift in work, actual equipment condition, unscheduled work, schedule adjustment.

Sergey V. Belyaev

Chief specialist, Internal Audit Department, OJSC “Interregional Distributive Grid Company of Urals”, Ekaterinburg, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID:

Aleksey V. Malafeev

Ph.D. (Engineering), Associate professor, Industrial Electric Power Supply Department, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID:

Evgeniy Ya. Omelchenko

D.Sc. (Engineering), Professor, Automated Electric Drive and Mechatronics Department, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID:

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