Automated Decision-Making no an Economical Option of Layout for the Outdoor Switchgear of Substations with the Highest Voltage of 35-220 kV

The design of the electrical part of switchgear substations is mainly carried out without taking into account the economic components and projects in this case must comply only with regulatory documents. The exclusion of economic factors from consideration when designing switchgears for substations is also due to the lack of time for a design engineer involved in the development of large-scale project documentation, and additional calculations under the conditions suitable for the end of the project execution period completely exclude the possibility of integrated accounting of all factors when choosing a switchgear circuit. The paper provides a description of the algorithm for selecting the appropriate option for the layout of an open distribution device for substations of 35-220 kV. The algorithm is based on the method of direct enumeration according to the criterion of the minimum reduced costs for the construction, repair and operation of the switchgear of substations. Possible variants of substation switchgear schemes and layouts are determined on the basis of the requirements of regulatory documents and ensure the required reliability, economy and safety. As the initial data for the determination of capital investments in the construction of electrical installations, the enlarged cost indicators are used. The algorithm is implemented in the original software "ORU CAD". The reported study was funded by RFBR according to the research project № 1837-00115.