Evaluation of the successive restoration of electricity supply to customers in distribution networks in connection with the regulation of electricity supply continuity

The restoration of electricity supply to customers after a failure in the distribution network often represents a complex process consisting of many steps (manipulation) to be undertaken in the network. As a result of this various customers on the same feeder affected by the failure perceive a different number of differently long supply interruptions. This paper deals with the influence of the methodology of evaluating supply interruptions on conventional reliability indices and on the costs of penalty payments. This influence is demonstrated with using real operational data from the overhead network of one distribution company for the period of five years.