Choice of appropriate approach to evaluating the level of reliability of supplying consumers from MV distribution networks

The paper concentrates on methodological and practical problems of evaluating the reliability of electricity supply, connected with the treatment of basic data on equipment failures and on outages of electricity supply to consumers in the MV distribution networks operated by distribution companies in the Czech Republic. The authors´ work was aimed at obtaining higher information capability of individual applied indices of electricity supply continuity, at their utilization for reducing operational costs as a result of reliability-oriented maintenance, at improving the supplying of consumers sensitive to supply interruption, as well as at defining the level of supply reliability at the points of delivery between the supplier and the consumer