Assessment of efficiency improvement reserves of maintenance and repair systems of high-voltage electrical equipment of industrial enterprises

The problems of choosing a strategy for the maintenance of the equipment of the power supply system of an industrial enterprise, taking into account the risk its failure and the problem of distributing the volume of the repair program in order to reduce maintenance costs and, accordingly, the cost of production, are considered. A method for assessing the magnitude of risk for the technological process of an industrial enterprise of the metallurgical industry, taking into account the power supply scheme of the electric receiver, is proposed. Special attention is paid to taking into account the influence of the power supply system of an industrial enterprise on the operation of final electrical receivers directly involved in the technological process. An example of using the proposed technique in a real power supply system with available statistical data on its failures is considered. The article formulates an approach to assessing the risk of failure of elements of the power supply network of an industrial enterprise, taking into account the operational scheme of power supply, and also shows the insufficiency of assessing the risk of power supply failures only from the failure of circuit elements through which electric power is directly transmitted to the electric receiver in question.